ORIGINAL

•I DavsWright
! Tremaine LLP

Suite 200
1919 Pennsylvania Avenue NW
Washington DC 20006-3402
Karen A. Ross
202.9734269 tel
202.973.4469 direct fax
202.973.4499 office fax
karenrossdwt.com

August 24, 2009
VIA HAND DELIVERY
Ms. Marlene H. Dortch, Secretary
Federal Communications Commission
445 12th Street, S.W.
Room TW-A325
Washington, D.C. 20554
Re:

Covering License Application on FCC Form 302-AM
WPLX(AM), Turrell, Arkansas (cility ID 529O6)

Dear Ms. Dortch:
On behalf of Educational Media Foundation ('EMF"), licensee of noncommercial AM
radio station WPLX, Turrell, Arkansas, submitted herewith in triplicate is an application on FCC
Form 302-AM for a license to cover construction permit FCC File No. BMP-20070703ABC and
a related request for program test authority.
Should you have any questions regarding this application, please contact the undersigned.

O6 J/2/d&

Respectfully submittedi.Th

cc:
Son Nguyen FCC
Enclosure

Anchorage

New York

Seattle

Bellevue

Portland

Shanghai

Los AngeLes

San Francisco

Washington, D.C.

www.dwtcorn

	

Federal Communications Commission
Washington, D.C. 20554

Approved by 0MB
3060-0627

FOR
FCC
USE
ONLY

Expires 01131)98

ED

FCC 302-AM
APPLICATION FOR AM
FOR COMMISSION USE ONLY

BROADCAST STATION LICENSE
(Please read instructions before filing out form.)

FILE NO.

AU( 7 4 2009
•-"-'"o uuIUIflSSJ0fl
lTfj

?L

of the Secrejart

SECTION I - APPLICANT FEE INFORMATION
1. PAYOR NAME (Last, First, Middle initial)

Educational Media Foundation
MAILING ADDRESS (Line 1) (Maximum 35 characters)

5700 West Oaks Boulevard
MAILING ADDRESS (Line 2) (Maximum 35 characters)
CITY

STATE OR COUNTRY (if foreign address)

Rocklin

CA
CALL LETTERS

TELEPHONE NUMBER (include area code)

(916) 251-1600

ZIP CODE

95765
OTHER FCC IDENTIFIER (If appl:cable)

WPLX(AM)

2. A. Is a fee submitted with this application?

Yes

No

B. If No, indicate reason for fee exemption (see 47 C.F.R. Section 1.1112).
Governmental Entity

Noncommercial educational licensee

Other (Please explain):

C. If Yes, provide the following information:
Enter in Column (A)the correct Fee Type Code for the service you are applying for. Fee Type Codes may be found in the Mass Media Services Fee Filing
Guide. Column (B) lists the Fee Multiple applicable for this application. Enter fee amount due in Column (C).

(A)

(B)

FEE TYPE CODE

FEE MULTIPLE

0

0

(C)
FEE DUE FOR FEE TYPE
CODE IN COLUMN (A)

I

FOR FCC USE ONLY

$

To be used only when you are requesting concurrent actions which result in a requirement to list more than one Fee Type Code.
(A)

(B)

(C)
FOR FCC USE ONLY

0

0

ADD ALL AMOUNTS SHOWN IN COLUMN C,
AND ENTER THE TOTAL HERE.
THIS AMOUNT SHOULD EQUAL YOUR ENCLOSED
REMITTANCE.

0

I

$
TOTAL AMOUNT
REMITTED WITH THIS
APPLICATION

FOR FCC USE ONLY

$

FCC 302-AM
August 1995

	

SECTION II - APPLICANT INFORMATION
1. NAME OF APPLICANT

Educational Media Foundation
MAILING ADDRESS

5700 West Oaks Boulevard
CITY

Rocklin

STATE

ZIP CODE

CA

95765

2. This application is for:

Noncommercial

Commercial
AM Directional

fl AM Non-Directional

Call letters

Community of License

Construction Permit File No.

WPLX(AM)

Turrell, Arkansas

BMP-20070703ABC

Modification of Construction
Permit File No(s).

N/A

3. Is the station now operating pursuant to automatic program test authority in accordance
with 47 C.F.R. Section 73.1620?

[iration Date of Last
Construction Permit

8/25/2009
Yes

No

Exhibit No.

If No, explain in an Exhibit.

1

4. Have all the terms, conditions, and obligations set forth in the above described construction
permit been fully met?

Yes

U

No

Exhibit No.

If No, state exceptions in an Exhibit.

5, Apart from the changes already reported, has any cause or circumstance arisen since the
grant of the underlying construction which would result in any statement or representation
contained in the construction permit application to be now incorrect?

Yes

No

Exhibit No.

If Yes, explain in an Exhibit.

6. Has the permittee filed its Ownership Report (FCC Form 323) or ownership certification in
accordance with 47 C.F.R. Section 73.3615(b)?

Yes

If No, explain in an Exhibit.

Exhibit No.

7. Has an adverse finding been made or an adverse final action been taken by any court or
administrative body with respect to the applicant or parties to the application in a civil or
criminal proceeding, brought under the provisions of any law relating to the following: any
felony; mass media related antitrust or unfair competition; fraudulent statements to another
governmental unit; or discrimination?

Yes

If the answer is Yes, attach as an Exhibit a full disclosure of the persons and matters involved,
including an identification of the court or administrative body and the proceeding (by dates
and file numbers), and the disposition of the litigation. Where the requisite information has
been earlier disclosed in connection with another application or as required by 47 U.S.C.
Section 1.65(c), the applicant need only provide: (I) an identification of that previous
submission by reference to the file number in the case of an application, the call letters of the
station regarding which the application or Section 1.65 information was filed, and the date of
filing; and (ii) the disposition of the previously reported matter.
FCC 302-AM (Page 2)
August 1995

No

Does not apply

Exhibit No.

No

		

5. Does the applicant, or any party to the application, have a petition on file to migrate to the
expanded band (1605-1705 kHz) ora permit or license either in the existing band or expanded
band that is held in combination (pursuant to the 5 year holding period allowed) with the AM
facility proposed to be modified herein?

flvcs

No

Edlibit No.

if Yes, provide particulars as an Exhibit.

The APPLICANT hereby waives any claim to the use of any particular frequency or of the electromagnetic spectrum as
against the regulatory power of the United States because use of the same, whether by license or otherwise, and requests
and authorization in accordance th this application. (See Section 304 of the Communications Act of 1934, as amended).
ThOAPPLICANT acknowledges that all the statements made in this application and attached exhibits are considered material
representations and that all the exhibits are a material part hereof and are incorporated herein as set out in full in the
application.

CERTI FICATION
1. y checking Yes, the applicant certifies, that, in the case of an individual applicant, he or
she is not subject to a denial of federal benefits that includes FCC benefits pursuant to
Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. Section 862, or, in the case of a
non-individual applicant (e.g., corporation, partnership or other unincorporated association),
no party to the application is subject to a denial of federal benefits that includes FCC benefits
pursuant to that section. For the definition of a 'party" for these purposes, see 47 C.F.R.
Section 1.2002(b).

Yes

13

No

2. I certify that the statements in this application are true, complete, and correct to the best of my knowledge and belief, and
are made in good faith.

/7/ 1/ //
\J

Name

Mike Novak
Title

President/CEO

J

Telephone Number

8/24/2009

gesture

(916) 251-1600

WILLFUL FALSE STATEMENTS ON THIS FORM ARE PUNISHABLE BY FINE AND/OR IMPRISONMENT
(U.S. CODE, TITLE 18, SECTION 1001), AND/OR REVOCATION OF ANY STATION LICENSE OR CONSTRUCTION
(LLS CODE, TITLE 47, SECTION 312a)(1)), AND/OR FORFEITURE (U.s. CODE, TITLE 47, SECTION 503)
FCC NIOTICETO NJDIVIDUALS REQUIRED BYTHE PRIVACYACT AND THE PAPERWORK REDUCTION ACT
The solicitation of personal information requested in this application is authorized by the Communications Act of 1934, as amended. The Commission will use the
infOmlalion provided in this form to determine whether grant of the application is in the public interest, In reaching that determination, or for law enforcement
purposes, itniay become necessary to refer personal information contained in this form to another government agency. In addition, all information provided in this
form Will be available for public inspection. If information requested on the foirn is not provided, the application may be returned without action having been taken
upon it or its processing may be delayed while a request is made to provide the missing information. Your response Is required to obtain the requested
authorizatIon.
Public reporting burden for this collection of Information is estimated to average 639 hours and 53 minutes per response, including the tme for reviewing
instructions, searching edsting data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Comments
regarding this burden estimate or any other aspect dl this collection of information, md Wing suggestions for reducing the burden, can be sent to the Federal
Communications Commission, Records Management Branch, Paperwork Reduction Preot (3050-0627). Washington, D. C. 20554. Do NOT send completed
forms to this address.
ThE FOREGOING NOTICE IS REQUIRED RYTHE PRIVACYACT O t974, P.L 93-579, DECEMSER 31, 1974, 5 U.S.C. 552a(e)(3), AND THE
PAPERWORK REDUCTION ACT OF 1960, P.L 9851 1, DECEMBER 11, 1980,44 U.S.C. 3507.
FCC 302-AM (Page 3)
August 1555

	

SECTiON III

LICENSE APPUCATION ENGINEERING DATA

Name of Applicant
EducaUonaf Media Foundation
PURPOSE OF AUTHORIZATION APPLIED FOR: (check one)
J

Station License

[]

1. Facilities authorized in construction permit
Call Sign
File No. of Construction Permit
(if applicable)

WPLX

BMP-20070703ABC

Direct Measurement of Power
________________________

Frequency
(kHz)

Hours of Operation

1180

2. Station location
State
Arkansas

5.0

3.5

Turrell
________________________

City or Town

Crittenden

West Memphis

4. Main studio location
State
County

________________________

City or Town

TN
Shelby
Cordova
5. Remote control point location (specify only if authorized directional antenna)
State
County
City or Town
CA

0.026

Unhmited

_____________________________________________________
City or Town

3. Transmitter location
County
State

AK

______________________________
Power in kilowatts
Night
Day
CH

Placer

______________________________
Street address
(or other identification)

End of Legion Road
_____________________________
Street address
(or other identification)
791 Walnut Knoll Lane
____________________________
Street address
(or other identification)
5700 West Oaks Boulevard

Rocklin

6. Has type-approved stereo generating equipment been installed?

L

vs

No

7. Does the sampling system meet the requirements of 47 C.F.R. Section 73.68?

xi

Yes

UNo

D Not Applicable
Exhibit No.

Attach as an Exhibit a detailed description of the sampling system as installed.
8. Operating constants:
RE common point or antenna current (in amperes) without
modulation for night system
CH
0.75
8.69
Measured antenna or common point resistance (in ohms) at
operating frequency
Night
Day
CH
50
50
50
Antenna indications for directional operation
Antenna monitor
Towers
Phase reading(s) in degrees
Night
Day
______________________

1
2

0.0
71.6

Manufacturer and type of antenna monitor;

0.0
-121.3

See Eng.

____________________________________________________
RF common point or antenna current (in amperes) without
modulation for day system
10.39
Measured antenna or common point reactance (in ohms) at
operating frequency
Night
Day
CH
-5
-5
-5
____________________________ ____________________________
Antenna monitor sample
current ratio(s)
Critical Hours
Night
Day
fte
Ro

1.000
0.803

-Potomac Instruments

1.000
0.107

0.0
-39.0

1.000
0.220

_____________ _____________ _____________

1901-2

FcC 302-AM lPao 4)
August 1995

	
	

SECTION Ill

Page 2

9. Description of antenna system (11 directional antenna s used, the information requested below should be given for each elemenl of the
array. Use separate sheets if necessary.)
Type Radiator

Vertical, guyed,

Overall height in meters
of radiator above base
insulator, or above base,
if grounded.

steel, uniform cross
section
#1
_____

Overall height in meters
above ground (include
obstruction lighting)

ltantennaiseilhertop
loaded or sec[ionalized.
describe fully in an Exhibit.

Exhibt No.

68.6, #2
Senes

Excitation

Overall height in meters
above ground (without
obstruction lighting)

82.3

#1 - 69.6, # 2 - 83.3

fl

# I - 70.4, #2 84.1

___________

Shunt

Geographic coordinates to nearest second. For directional antenna give coordinates of center of array. For single vertical radiator give
lower location.

If not fully described above, attach as an Exhibit further details and dimensions including any other
antenna mounted on lower and associated isolation circuits.

Exhibit No.
N/A

Also, if necessary for a corn plete description, attach as an Exhibit a sketch of the details and dimensions
of ground system.

Exhibit NO.
N/A

10. In what respect, if any, does the apparatus constructed differ from that described in the application for construction permit or in the
permit?

No Changes

11. Give reasons for the change in antenna or common point resislance.
N/A

I certily that I represent the applicant in the capacity indicated below and that I have examined the foregoing stOtement of technical
information and that it is true to the best of my knowledge and belief.
urececkapropteoxbetow

Name (Please Print or Type)

Charles A. Hecht

_______________________

_________

Address (include ZIP Code)

Date

Charles A. Hecht & Associates, Inc.
16 Doe Run

Telephone No. (Include Area Code)

PfttstownNJ_08867

Li

Technical Director

LI

Chief Operator

fl Other (specify
FCC 3O2AM (P
AuuCt iees

5)

1L .1.
_____________

908 730-7959

_________

_________

LI Registered Professional Engineer
Technical Consultant

_____

Educational Media Foundation

Exhibit I

5700 West Oaks Boulevard + Rocklin • California + 95765
Compliance with Special Operating Conditions
The Construction Permit contains several Special Operating Conditions, summarized as
follows:
1. The permittee must provide the results of a complete nondirectional proof-ofperformance to in addition to a complete proof on the day, night and critical hours
directional antenna system before program tests are authorized.
2. The permittee must shall install a type accepted transmitter or submit FCC Form 301
should a non-type transmitter be proposed.
3. The perniittee must file an FCC Form 302 to cover the construction permit before the
permit expires.
4. The permittee shall be responsible for satisfying all reasonable complaints of
blanketing interference with the 1 V/m contour as required by Section 73.88.
5. The permittee will abandon the currently licensedl 170 kHz facility prior to or
simultaneously with the filing of FCC Form 302 for the new 1180 kHz facility.
Educational Media Foundation (EMF"), complies with, or agrees to, these conditions,
as follows (exceptions noted):
1. See Exhibit 1A - Engineering Report.
2. EMF has installed type accepted transmitters.
3. The instant application is being filed prior to expiration of the construction permit to
satisfy this condition.
4. EMF will be responsible for satisfying all reasonable complaints of blanketing
interference with the I V/m contour as required by Section 73.88 of the Commission's
rules.
5. EMF ceased operation on 1170 kHz on July 23, 2009 to construct and license the
instant facility.
Therefore, all Special Operating Conditions of the WPLX(AM) Construction Permit (FCC
File Number BMP-20070703ABC) have been met.

DWT t3289040v1 0080381-000] 16

EXHIBIT 1A

CHARLES A. HECHT

& ASSOCIATES, INC.
BROADCAST ENGINEERING CONSULTANTS

ENG[NEERING REPORT IN SUPPORT OF
APPLICATION FOR LICENSE AND REQUEST FOR PROGRAM TEST AUTHORITY
EMPLOYiNG MOMENT METHOD MODELING
WPLX I 180 KHZ BMP-20070703ABC
5 KW D, 3.5 KW CH, 0.026 KW N, DA-3

TURRELL, ARKANSAS

AUGUST 2009

CHARLES A. HECHT

& ASSOCIATES, INC.
BROADCAST ENCINEERING CONSULTANTS

ENGINEERING REPORT TN SUPPORT OF
APPLICATION FOR LICENSE AND REQUEST FOR PROGRAM TEST AUTHORITY
EMPLOYING MOMENT METHOD MODELiNG
WPLX 1180 KHZ BMP-20070703ABC
5 KW D, 3.5 KW CH, 0.026 KW N, DA-3

TURRELL, ARKANSAS

SUMMARY
This engineering report is submitted on behalf of Educational Media Foundation
(hereinafter referred to as "EMF"), licensee of AM station WPLX Germantown, Tennessee in
support of an application for license and request for program test authority for WPLX. WPLX is
licensed to operate daytime hours only on 1170 kilohertz with power of 1 kilowatt employing a
non-directional antenna.

This report will demonstrate that EMF has constructed WPLX in

accordance with construction permit BMP-20070703ABC. The permit authorizes relocation of
the WPLX transmitter site, a change in frequency to 1180 kilohertz, operation with a tn-mode
directional antenna system and a change in city of license to Turrell, Arkansas. A copy of the
construction permit is enclosed at the rear of this report. In support thereof, contained in this
report is a complete method of moments proof of performance for the daytime, critical hours and
nighttime directional antenna systems with associated engineering exhibits and the Engineering
section of FCC Form 302-AM.

2

CHARLES A. HECHT

& ASSOCIATES, INC.
BROADCAST ENGINEERING CONSULTANTS

METHODOLOGY
The antenna system has been built and adjusted to producemonitoring system parameters
in compliance with the method of moments ("MoM") calculated values (as calculated using
Expert Mininec Broadcast Professional Version 6.0 and the antenna monitoring system has been
adjusted to produce monitoring system parameters which are within +1- 5 percent in field ratio
and +/ 3 degrees in phase of the modeled values as required by Section 73.15 J(c)(2)(ii) of the
rules.

SAMPLE SYSTEM
The sampling system consists of new Delta Electronics TCT-3 sampling transformers
with a sensitivity of 1 volt per amp mounted in a weather proof tuning unit at the base of each
tower. The toroidal sample devices were calibrated by the manufacturer and were certified as
being within 1 percent ratio and 1 degree phase accuracy.

The sampling devices are connected to the phase monitor with equal lengths of Andrew
LDF4-50A foam coaxial cable.

The sample lines are buried and exposed to similar

environmental conditions. Each sample line was ordered and tested by the manufacturer to be
phase stabilized and of equal length.

Manufacturer specifications were verified following

installation. The sample system as installed meets FCC type approval requirements. The phase
monitor is anew Potomac Instruments Model 1901-2.

3

CHARLES A. HECHT

& ASSOCiATES, INC.
BROADCAST ENGINEERING CONSULTANTS

Impedance measurements were made on the antenna sampling system using a Potomac
Instruments SD-3 I Frequency Synthesizer/Detector, a Potomac Instruments RX-3 I receiver and
Delta Electronics 018-3 impedance bridge. The measurements were made looking into the
antenna monitor ends of the sample lines with the tower ends open-circuited. All connectors
were installed on the sample lines and readings were normalized to include the test leads.

All test and impedance measurements, field strength measurements, antenna adjustments
and antenna modeling presented in this report were done by Charles A. Hecht and Kurt R.
Gorman of Phasetek, Inc.

4

CHARLES A. HECHT

& ASSOCIATES, INC.

ROADCA5T ENGINEERING CONSULTANTS

The table below shows the frequency closest to the carrier frequency where resonance,
defined as zero reactance corresponding with low resistance, was found. The electrical length at
carrier frequency appearing in the table below was calculated by ratioing the frequencies.

Resonance
Below 1180 Khz

Calculated
Electrical Length

Tower 1

880.0 khz

120.68°

Tower 2

883.0 khz

120.27°

Based upon the measurements shown above, the sample lines are well within the required
tolerance of one electrical degree.

To determine the characteristic impedance values of the sample lines, open-circuited
measurements were made with frequencies offset to produce ± 45 degrees of electrical length
from resonance.

The characteristic impedance was calculated using the following formula,

where Rl +j XI and R2 +j X2 are the measured impedances at the +45 and -45 degree offset
frequencies, respectively:

zo

=

((R

Towerl

1320.0

+45 Degree
Measured
Impedance
(Ohms)
2.0+j51.7

Tower2

1324.5

3.0+j51.6

+45 Degree Offset
Frequency (KHz)
______________ _________________

2\12

^

-45 Degree Offset
Frequency (KHz)

-45 Degree
Measured
Impedance (Ohms)

__________________

__________________

440.0

2.0-j48.4

Calculated
Characteristic
Impedance
(Ohms)
50.06

441.5

2.5-j49.1

50.41

MAX Impedance

50.30

MIN Impedance

50.16
0.14

MAXIMUM IMPEDANCE DELTA

5

CHARLES A. HECHT

& ASSOCIATES, INC.
BROADCAST ENGINEERING CONSULTANTS

As shown above, the sample lines measured characteristic impedance meets the
requirement that they be within 2 ohms.

TOWER BASE IMPEDANCE MEASUREMENTS
The impedance of each tower was measured at the J plug at the output of the I matching
network at the base of each tower. All impedance measurements were obtained using a Delta
Electronics OIB-3 operating impedance bridge, serial number 1345, with a Potomac Instruments
SD-3 I Frequency Synthesizer/Detector and RX-3 I receiver. Measurements were taken with the
test leads shorted (for reference), from the J plug to the tower with the tower base shorted, and
from the J plug to the tower with the tower in-circuit.

The tower lighting chokes were

disconnected. All measurements were taken for each tower with all other towers open-circuited.
The following exhibit describes the measurement conditions and assumptions used in the MoM
analysis.

6

	

CHARLES A. HECHI

& ASSOCIATES, INC.
BROADCAST ENGINEERING CONSULTANTS

EXHIBIT I

TOWER IMPEDANCE MEASUREMENTS COMPARED TO
METHOD OF MOMENTS MODEL

Z

Z
ATU

ANT

ATU
Cs

TOWER Specified
Cs (pf)

Measured Measured
LF (jJi)

XF ()

Modeled

Modeled

Measured

(1)

ZATU ()

ZATU ()

ZANT

1

20

72

53.4

669 +j 100.3

69.2 +j 154.3

70.0 +j 153.4

2

20

7.4

54.9

194.3 +j 239.5

209.2 +j 295.7

208.0 +j 293.8

7

	

CHARLES A. HECHT

& ASSOCIATES, INC.
BROADCAST ENGINEERING CONSULTANTS

EXHIBIT II
MOM MODEL PARAMETERS

Tower

Wire No.

No.
Segments

Base Node

Radius (m)

Model
Length
(degrees)

Physical
Length
(degrees)

1

1

12

1

.38

106.5

97.2

2

2

13

13

.38

128.0

116.6

Both towers are triangular 24 inch face, 72 inch circumference, 11.46-inch (0.291 lm) radius.
Base insulator of Tower I Austin A-4197L, manufacturer specified capacitance of 2Opf. Leg
diameter is 1" OD.
Base insulator of Tower 2 Lapp, model number unknown, of similar size to Tower I, therefore
capacitance of 20 pf was assumed. Leg diameter is 2 318" OD.
Both towers have a tower lighting choke with a measured impedance of +j4200 ohms at I 180
kilohertz.

8

CHARLES A. HECHT

& ASSOCIATES, INC.
BROADCAST ENGINEERING CONSULTANTS

EXHIBIT III
WPLX DERIVED AND MEASURED OPERATING PARAMETERS

MoM Source
Ratio! Phase

Base Network
Ratio! Phase

TCT Value
Ratio! Phase

Indicated
Ratio/Phase*

1

1.000/+0.00

1.021/-0.29°

1.000!+0.0°

1.000!+0.0°

2

.0971-119.5°

1.1167-1.94°

.106!-121.1°V

.107!-121.3°

TOWER

Base Network
Ratio! Phase

TCT Value
Ratio! Phase

Indicated
Ratio/Phase*

____________

MoM Source
Ratio! Phase

I

1 .0001+0.0°

1.020/-0.36°

1 .000!+0.0°

I .000!+0.0°

2

.2147-35.3°

1.0307-3.08°

.217!38.l0

.2201-39.0°

TOWER

MoM Source
Ratio/ Phase

Base Network
Ratio! Phase

TCT Value
Ratio! Phase

Indicated
Ratio/Phase*

1

1 .000/+0.0°

1.025/-0.67°

1.0001+0.0°

1.0007+0.0°

2

.801/+72.0°

1 .025/-0.7 1°

.801/+72.0°

.8031+71.6°

TOWER
____________

* Final antenna monitor indications from Potomac Instruments 190 1-2 Antenna monitor. These numbers
are submitted as final operating parameters on the FCC 302-AM application included with this report.
The numbers are within 5% of the value derived for the TCT Values in the previous column.

9

	

CHARLES A. HECHT

& ASSOCIATES, INC.
BROADCAST ENGINEERING CONSULTANTS

EXHIBIT IV
WPLX MOMENT MODELING

WPLX TOWER 1

GEOMETRY
Wire coordinates in degrees; other dimensions in meters
Environment: perfect ground
wire
I
2

caps Radius
none 0
0
none 72.7
72.7

Z
0
106.5
0
128.

Angle
0
0
55.
55.

radius
.38
.38

segs
12
13

= 2
Number of wires
current nodes = 25

Individual wires
segment length
radius

ELECTRICAL DESCRIPTION
Frequencies ( MHz)
frequency
no. lowest
step
1.18
0
1
Sources
source node
1

maximum
wire value
8.875
1
1
.38

minimum
value
wire
9.84615
2
.38
1

sector

no. of segment length (wavelengths)
maximum
minimum
steps
.0273504
.0246528
1

magnitude

phase
0

type
voltage

Lumped loads
load
1
2

node
1
13

resistance
(ohms)
0
0

inductance
(mH)
0
0

reactance
(ohms)
0
6,743.9

I MPH DANCE
50.
normalization
resist
react
imped
freq
(ohms)
(ohms)
(ohms)
(MHZ)
source = 1; node 1, sector 1
66.935
100.28
120.56
1.18

capacitance passive
circuit
(oF)
0
0
0
0

phase
(deg)

VSWR
dB

Sli
dB

S12
dB

56.28

4.8856

-3.6067

-9.3752

CURRENT rms
= 1.18 MHz
Frequency

10

	

CHARLES A. HECHT

& ASSOCIATES, INC.
BROADCAST ENCINEERNG CONSULTANTS

Input power = .00230242 watts
Efficiency
100. %
current
no.
X
Y
Z
GND
0
0
0
2
0
0
8.875
17.75
3
0
0
4
0
0
26.825
5
0
3
35.5
44.375
6
3
3
7
0
0
53.25
8
0
0
62.125
9
0
0
71.
10
79.875
0
0
11
0
0
88.75
12
97.625
0
0
0
0
106.5
END
GND
41.699
59.5523
0
14
41.699
59.5523
9.84615
15
41.699
59.5523
19.6923
16
41.699
59.5523
29.5385
17
41.699
59.5523
39.3846
18
41.699
59.5523
49.2308
19
41.699
59.0769
59.5523
41.699
59.5523
68.9231
20
21
41.699
78.7692
59.5523
22
41.699
59.5523
88.6154
23
41.699
59.5523
98.4615
24
41.699
59.5523
108.308
25
41.699
59.5523
118.154
END
41.699
59.5523
128.

mag
phase real
imaginary
(deg)
(amps)
(amps)
)amps)
5.868-03 -56.28 3.26E-03 -4.888-03
6.38E-03 -59.61 3.23E-03 -5.518-03
6.59E-03 -61.45 3.158-03 -5.798-03
6.68-03 -62.83 3.028-03 -5.888-03
6.45E-03 -63.93 2.838-03 -5.798-03
6.138-03 -64.85 2.68-03
-5.558--OS
5.668-03 -65.65 2.338-03 -5.158-03
5.04E-03 -66.34 2.028-03 -4.628-03
4.29E-03 -66.97 1.688-03 -3.95E-03
3.438-03 -67.54 1.31E-03 -3.17E-03
2.458-03 -68.08 9.158-04 -2.278-03
1.36E-03 -68.59 4.978-04 -L27E-03
0
0
0
0
8,51E-05 167.47 -8.31E-05 1.858-05
6.848-04 167.48 -6.678-04 1.488-04
1.058-03 167.5 -1.02E-03 2.27E-04
1.328-03 167.54 -1.28E--03 2.848-34
1.58-03 167.59 -1.478-03 3.238-04
1.618-03 167.66 -1.57E-03 3.448-04
1.64E-03 167.75 -1.68-03 3.488-04
1.68-03 167.87 -1.57E-03 3.378-04
1.498-03 168.
-1.468-03 3.18-04
1.328-03 168.14 -1,29E-03 2.718-34
1.088-03 168.28 -1.06E-03 2.2E-04
7.938-04 168.41 -7.778-04 1.598-04
4.498-04 168.53 -4.48-04 8.938-05
0
0
0
0

11

	

CHARLES A. HECHT

& ASSOCIATES, INC.
BROADCAST ENGI NEERING CONSULTANTS

WPLX TOWER 2
GEOMETRY
Wire coordinates in degrees; other dimensions in meters
Environment: perfect ground
wire
1
2

caps Radius
none0
0
none 72.7
72.7

Angle
3
3
55.
55.

Number of wires
current nodes

Individual wires
segment length
radius

sector

radius
.38
.38

segs
12
13

2
25

minimum
wire
value
2
9.84615
1
.38

ELECTRICAL DESCRI STION
Frequencies
MHz)
frequency
no. lowest
step
1
1.18
0
Sources
source node
1
13

=

Z
0
106.5
0
128.

maximum
wire value
8.875
1
1
.38

no. of segment length (wavelengths)
maximum
minimum
steps
.0273504
1
.0246528

magnitude

phase
0

type
voltage

Lumped loads
load
1
2

node
1
13

resistance
(ohms)
0
0

reactance
(ohms)
-6743.9
0

IMPEDANCE
normalization = 50.
freq
resist
react
imped
(MHz)
(ohms)
(ohms)
(ohms)
source = 1; node 13, sector 1
239.54
308.41
1.18
194.26

CURRENT rms
Frequency
1.18 MHz
Input power = .00102115 watts
Efficiency = 100. %
current
no.
X
I
Z
0
GND
0
0
8.875
2
0
0
17.75
3
0
0
4
26.625
0
0

inductance
(mH)
0
0

phase
(deg)

VSWR
dS

50.96

9.9498

mag
(amps)
3.25E-05
2.45E04
3.69E-04
4.57E-04
12

phase
(deg)
174.11
173.98
173.78
173.56

capacitance passive
circuit
(uS)
0
0
0
0

S1l
dB
l.7519

real
(amps)
-3.23E-05
2.44E-04
-3.67E-04
-4.545-04

S12
dB
14.767

imaginary
(amps)
3.33E-06
2.57E05
4.E-05
5.13E-05

	

CHARLES A. HECHT

& ASSOCIATES, INC.

BROADCAST ENC IN EERI NC CONSULTANTS

5
6
7
8
9
10
11
12
END
GND
14
15
16
17
18
19
20
21
22
23
24
25
END

0
0
0
0
0
0
0
0
0
41.699
41.699
41.699
41.699
41.699
41.699
41.699
41.699
41.699
41.699
41.699
41.699
41.699
41.699

0
0
0
0
0
0
0
0
0
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523

35.5
44.375
53.25
62.125
71.
79.875
88.75
97.625
106.5
0
9.84615
19.6923
29.5385
39.3846
49.2308
59.0769
68.9231
78.7692
88.6154
98.4615
108.308
118.154
128.

5.15E-04 173.33 -5.I1E-04 5.98E-05
5.43E-04 173.11 -5.39E-04 6.52E-05
5.44E-04 172.91 -5.4E-04 6.71E-05
S.18E-04 172.74 -5.14E-04 6.55E-05
4.67E-04 172.61 -4.63E-04 6.O1E-05
3.91E-04 172.52 -3.88E-04 5.09E-05
2.92E-04 172.46 -2.89E-04 3.83E-05
1.68E-04 172.46 -l.67E--04 2.21E-05
0
0
0
0
229E-03 -50.96 1.44E-03 -1.78E-03
2.87E-03 -60.05 1.43E-03 -2.49E-03
3.22E-03 -64.25 1.4E-03
-2.9E-03
3.446-03 -67.05 1.34E-03 -3.176-03
3.556-03 -69.11 1.276-03 -3.326-03
3.54E-03 -70.73 1.176-03 -3.356-03
3.436-03 -72.06 1.066-03 -3.266-03
3.216-03 -73.18 9.29E-04 -3.076-03
-2.786-03
2.89E-03 -74.15 7.96-04
2.496-03 -75.01 6.43E-04 -2.4E-03
-1.946-03
-75.79 4.96-04
2.6-03
1.436-03 -76.5 3.34E-04 -1.39E-03
7.95E-04 -77.18 1.77E-04 -7.756-04
0
0
0
0

13

	

CHARLES A. HECHT

& ASSOCIATES, INC.
BROADCAST ENGINEERING CONSULTANTS

WPLX DAY
MEDIUM WAVE ARRAY SYNTHESIS FROM FIELD RATIOS
Frequency

tower
1
2

1.18 MHz

field ratio
magnitude
1.
.425

phase (deg)
0
231.

VOLTAGES AND CURRENTS
rms
source voltage
phase (deg)
node
magnitude
1
1,013.27
65.42
13
1,083.92
-43.54
Sum of square of source currents
Total power = 5,000. watts
TOWER ADMITTANCE MATRIX
real (mhos)
admittance
.00404976
Y(1, 1)
.0017232
Y(1, 2)
.00172321
Y(2, 1)
.00176323
Y(2, 2)
TOWER IMPEDANCE MATRIX
impedance
real (ohms)
68.6155
2(1, 1)
67.4093
2(1, 2)
67.4246
2(2, 1)
197.711
Z(2, 2)

current
magnitude
8.83522
.85411
= 157.581

imaginary (mhos)
. 00531945

.00108425
.00108391
- .00193022

imaginary (ohms)
100.366
-66.4741
-66.4701
239.949

14

phase (deg)
6.86
-112.6

	

CHARLES A. HECHT

& ASSOCIATES, INC.
BROADCAST ENGINEERING CONSULTANTS

WPLX DAY
GEONETRY
Wire coordinates in degrees; other dimensions in meters
Environment: perfect ground
wire
I
2

caps Radius
noneU
0
none 72.7
72.7

Z
0
106.5
0
128.

Angle
0
0
55.
55.

radius
.38

segs
12

.38

13

= 2
Number of wires
current nodes = 25

Individual wires
segment length
radius

ELECTRICAL DESCRIPTION
Frequencies ( MHz)
frequency
no. lowest
step
0
1.18
1
Sources
source node
1
1
2
13

sector
1
1

maximum
wire value
9.875
1
1
.38

minimum
value
wire
9.84615
2
.38
1

no. of segment length (wavelengths)
minimum
maximum
steps
.0273504
1
.0246528

IMPEDANCE
normalization = 50.
react
imped
freq
resist
(ohms)
(MHz)
(ohms)
(ohms)
source = 1, node 1, sector 1
97.729
114.44
59.551
1.18
source = 2, node 13, sector 1
1,158.5 1,235.7
429.92
1.18

phase
(deg)

VSWR
dB

Sli
dE

S12
dB

58.64

5.0399

-3.4932

-9.6

69.64

71.142

-.2442

-31.143

Parallel combination of all sources.
90.4454
104.893
1.18
53.1241

CURRENT rms
Frequency
1.18 MHz
Input power = 5,000. watts
Efficiency = 100. %
current
X
Y
no.
GND
0
0
0
2
0
0
3
0
4
0
0

I
0
9.875
17.75
26.625

type
voltage
voltage

phase
65.42
-43.54

magnitude
1,432.98
1,532.9

59.57

mag
(amps)
8.85469
9.61118
9.90584
9.91644

15

4.8784

phase
deg)
6.78
3.81
2.16
.92

-3.6121 -9.3646

real
(amps)
8.7928
8.58993
9.89883
9.91516

imaginary
(amps)
1.04506
.638665
.372558
.159375

	

CHARLES A. HECHT

& ASSOCIATES, INC.
BROADCAST ENGINEERING CONSULTANTS

5
6
7
8
9
10
11
12
END
GND
14
15
16
17
18
19
20
21
22
23
24
25
END

0
0
0
0
0
0
0
0
0
41.699
41.699
41.699
41.699
41.699
41.699
41.699
41.699
41.699
41.699
41.699
41.699
41.699
41.699

0
0
0
0
0
0
0
0
0
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523

35.5
44.375
53.25
62.125
71.
79.875
88.75
97.625
106.5
0
9.84615
19.6923
29.5385
39.3846
49.2308
59.0769
68.9231
78.7692
88.6154
98.4615
108.308
118.154
128.

9.66978
9.18132
8.46561
7.53844
6.41738
5.12003
3.65939
2.03151
0
.877226
1.94209
2.61041
3.08994
3.40637
3.5682
3.58049
3.44893
3.181
2.78608
2.27459
1.65577
.931428
0

16

9.66977
-.07
9.1802
-.9
8.46227
-1.61
-2.24
7.53269
6.4097
-2.8
-3.32
5.11141
-3.81
3.65129
-4.28 2.02585
0
0
-113.18-.345288
-124.57-1.10187
-127.03-1.57194
-128.24-1.91265
-128.98-2.14274
-129.47-2.26812
-129.81-2.29224
-130.05-2.21905
-130.22-2.05388
-130.34-1.80342
-130.43-1.47511
-130.51-1.07548
-130.58-.605923
0
0

-.0116146
-.143615
-.237702
-.294365
-.313992
-.296954
-.243304
-.151671
0
-.806413
-1.59925
-2.08405
-2.42683
-2.64802
-2.75457
-2.75055
-2.64025
-2.42907
-2.12365
-1.73142
-1.25894
-.707402
0

	

CHARLES A. HECHT

& ASSOCIATES, INC.
BROADCAST ENGINEERING CONSULTANTS

WPLX CRITICAL HOURS
MEDIUM WAVE ARRAY SYNTHESIS FROM FIELD RATIOS
Frequency

tower
1
2

1.18 MHz

field ratio
magnitude
1.
.5

phase (deg)
0
282.

VOLTAGES AND CURRENTS - rms
source voltage
node
magnitude
phase (deg)
1
635.054
56.61
13
826.246
-11.89
Sum of square of source currents
Total power = 3,500. watts
TOWER ADMITTANCE MATRIX
admittance
real (mhos)
Y(1, 1)
.00404976
.0017232
Y(1, 2)
.00172321
Y(2, 1)
.00176323
Y(2, 2)
TOWER IMPEDANCE MATRIX
impedance
real (ohms)
2(1, 1)
68.6155
2(1, 2)
67.4093
2(2, 1)
67.4246
197.711
2(2, 2)

current
magnitude
5.87867
1.26003
72.2928

imaginary (mhos)
- - 00531945
.00108425
.00108391
- .00193022

imaginary (ohms)
100.366
-66. 4741
-66. 4701
239.949

17

phase (deg)
8.53
-26.8

	

CHARLES A. HECHT

& ASSOCIATES, INC.
BROADCAST ENC I I4EER I NC CONSULTANTS

WPLX CRITICAL HOURS

GEOMETRY
wire coordinates in degrees; other dimensions in meters
Environment: perfect ground

wire
1
2

caps Radius
none 0
0
none 72.7
72.7

Angle
0
0
55.
55.

Z
0
106.5
0
128.

radius
.38

segs
12

.38

13

Number of wires
= 2
current nodes = 25

Individual wires
segment length
radius

minimum
wire
value
2
9.84615
1
.38

ELECTRICAL DESCRIPTION
Frequencies ( MHz)
frequency
no. lowest
step
1
1.18
0
Sources
source node
1
1
2
13

sector
1
1

maximum
wire value
1
8.875
1
.38

no. of segment length (wavelengths)
steps
minimum
maximum
1
.0246528
.0273504

magnitude
898.101
1,168.49

IMPEDANCE
normalization = 50.
freq
react
imped
resist
(ohms)
(ohms)
(MHz)
(ohms)
source = I; node I, sector 1
1.18
71.908
80.371
107.84
source = 2; node 13, sector 1
1.18
628.76
177.25
653.26

phase
56.61
-11.89

phase
(deg)

VSWR
dE

311
dB

512
dB

48.18

3.6566

-4.8749

-7.3408

15.74

13.58

-1.2815

-17.255

Parallel combination of all sources.
1.18
68.1851
65.2428
94.3707

CURRENT rms
Frequency
1.18 MHz
Input power = 3,500. watts
Efficiency = 100. %
current
no.
K
Y
GNU
0
0
2
0
0
3
0
0
4
0
0

Z
0
8.875
17.75
26.625

type
voltage
voltage

43.74

meg
(amps)
5.88922
6.29967
6.44297
6.41404

18

3.0137

phase
(deg)
8.43
4.79
2.72
1.16

-5.9909 -6.0504

real
(amps)
5.82561
6.27764
6.43569
6.41272

imaginary
(amps)
.863203
.526386
.30625
.130278

	

CHARLES A. HECHT

&ASSOOATES, INC.
BROADCAST ENCNEERING CONSULTANTS

5
6
7
8
9
10
11
12
END
GND
14
15
16
17
18
19
20
21
22
23
24
25
END

0
0
0
0
0
0
0
0
0
41.699
41.699
41.699
41.699
41.699
41.699
41.699
41.699
41.699
41.699
41.699
41.699
41.699
41.699

0
0
0
0
0
0
0
0
0
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523

35.5
44.375
53.25
62.125
71.
79.875
88.75
97.625
106.5
0
9.84615
19.6923
29.5385
39.3846
49.2308
59.0769
68.9231
78.7692
88.6154
98.4615
108.308
118.154
128.

6.22732
5.89174
5.41615
4.81055
4.08601
3.25357
2.32136
1.2867
0
1.26492
1.68961
2.07251
2.37333
2.57848
2.68251
2.68359
2.58263
2.38282
2.08929
1.70832
1.24568
.701945
0

19

-.1
6.22731
-. 0105391
-.118985
-1.16 5.89054
-2.07 5.4126
-.196081
-.242342
-2.89 4.80445
-3.62 4.07785
-.258182
-.243967
3.24441
-4.3
2.31274
-.199776
-4.94
-.12449
-5.55 1.28066
0
0
0
-27.63 1.12066
-.58663
-1.40463
-56.24 .939034
-67.16 .804607
-1.90995
-2.27318
-73.3
.682186
-77.26 .568517
-2.51502
-80.05 .463538
-2.64215
-2.65825
-82.12 .367962
-2.56713
-83.72 .282542
-2.37374
.207815
-85.
-2.08431
-86.05 .144061
-86.93 .0913731 -1.70587
-87.71 .0497785 -124469
-88.42 .0193731 -.701678
0
0
0

	

CHARLES A. HECHI

&ASSODATES, INC.

BROADCAST ENGINEERING CONSULTANTS

WPLX NIGHT
MEDIUM WAVE ARRAY SYNTHESIS FROM FIELD RATIOS
Frequency = 1.18 MHz

tower
1
2

field ratio
magnitude
1.
1.

phase (deg)
0
69.

VOLTAGES AND CURRENTS - rms
source voltage
magnitude
phase (deg)
node
59.27
1
64.6432
129.26
53.3207
13
Sum of square of source currents
Total power
26. watts

current
magnitude
.337049
.270012
= .373017

TOWER ADMITTANCE MATRIX
real (mhos)
admittance
.00404976
Y(1, 1)
.0017232
1(1, 2)
Y(2, 1)
.00172321
.00176323
Y(2, 2)

Imaginary (mhos)
-.00531945
00108425
.00108391
- .00193022

TOWER IMPEDANCE MATRIX
impedance
real (ohms)
68.6155
Z(1, 1)
67.4093
Z(1, 2)
67.4246
Z(2, 1)
187.711
Z(2, 2)

imaginary (ohms)
100.366
-66.4741
-66.4701
239. 949

20

phase (deg)
14.41
86.42

	

CHARLES A. HECHT

& ASSOCIATES, INC.
BROADCAST ENGINEERING CONSULTANTS

WPLX NIGHT
GEOMETRY
Hire coordinates in degrees; other dimensions in meters
Environment: perfect ground
wire
1
2

caps Radius
none 0
0
none 72.7
72.7

Number of wires
current nodes

Individual wires
segment length
radius

=

radius
.38

sector
1
1

13

2
25
maximum
wire value
8.875
1
1
.38

no. of segment length (wavelengths)
maximum
minimum
Steps
.0273504
.0246528
1

phase
(dog)

VSWR
dB

511
dB

S12
dB

45.04

5.6042

-3.1333

-10.376

43.03

5.555

-3.1617

-10.311

Parallel combination of all sources.
97.0267
67.4643
69.7334
1.18

Z
0
8.875
17.75
26.625

type
voltage
voltage

phase
59.27
129.26

magnitude
91.4193
75.4069

IMPEDANCE
normalization = 50.
react
imped
freq
resist
(ohms)
(ohms)
(MHZ)
(ohms)
source = 1; node 1, sector 1
191.22
135.32
135.11
1.18
source = 2; node 13, sector 1
134.37
196.91
143.93
1.18

CURRENT rms
= 1.18 MHz
Frequency
26. watts
Input power
Efficiency = 100. %
current
Y
no.
X
GND
0
0
2
0
0
0
3
0
4
0
0

segs
12

.38

minimum
wire
value
2
9.84615
.38
1

ELECTRICAL DESCRIPTION
Frequencies ( MHz)
frequency
no. lowest
step
0
1
1.18
Sources
source node
1
1
2
13

S
0
106.5
0
128.

Angle
0
0
55.
55.

44.05

mag
(amps)
.338085
.380865
.402045
.410162

21

3.0938

phase
(deg)
14.23
7.72
4.3
1.83

-5.8237 -6.222

real
(amps)
.32771
.377409
.400915
.409953

imaginary
(amps)
.0831151
.0511902
.0301183
.0130905

	

CHARLES A. HECHT

& ASSOCIATES, (NC.
BROADCAST ENGINEERING CONSULTANTS

5
6
7
8
9
10
11
12
END
GND
14
15
16
17
18
19
20
21
22
23
24
25
END

0
0
0
0
0
0
0
0
0
41.699
41.699
41.699
41.699
41.699
41.699
41.699
41.699
41.699
41.699
41.699
41.699
41.699
41.699

0
0
0
0
0
0
0
0
0
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523
59.5523

35.5
44.375
53.25
62.125
71.
79.875
88.75
97.625
106.5
0
9.84615
19.6923
29.5385
39.3846
49.2308
59.0769
68.9231
78.7692
88.6154
98.4615
108.308
118.154
128.

.40628
.390959
.364725
.328191
.282055
.227025
.163614
.0915662
0
.270816
.308313
.329325
.340429
.342256
.335062
.319129
.294864
.26282
.223671
.178148
.126881
.0699636
0

22

-.1
-1.67
-3.
-4.14
-5.15
-6.06
-6.88
-7.64
0
86.23
78.83
74.87
71.99
69.72
67.85
66.25
64.84
63.57
62.41
61.34
60.34
59.38
0

.40628
.390793
.364226
.327333
.280915
.225757
.162437
.0907526
0
.0178073
.0597249
.0859742
.105255
.118603
.126319
.128534
.125365
.116973
.103575
.0854361
.0627941
.0356393
0

-6.82E-04
-.0113913
-.0190694
-.0237138
-.0253325
-.0239518
-.0195925
-.0121792
0
.27023
.302473
.317905
.323749
.321049
.310339
.2921
.266886
.235355
.198244
.156324
.110253
.0602059
0

	

CHARLES A. HECHT

& ASSOCIATES, INC.

BROADCAST ENGINEERING CONSULTANTS

EXHIBIT V
WPLX CIRCUIT ANALYSIS

WPLX TONER 1 )OTHEP. OPEN)
BR7NCH LABEL NODES VALUE
1

Vi

0

0

100.

2

Ri

1

0

100.K

3

R2

1

2

0.1

4

Li

2

0

1.

5

L2

2

3

7.2u

6

Cl

3

0

20.p

7

R3

3

0

66.9

J 100.3

VALUE
0.169131

dB
-15.437

PHASE
65.838

PHASE DELAY
-i54.986n

V:2

0.16906

-15.439

65.869

-155.059n

1.18M

V:3

0.122291

-18.252

55.632

-130.96n

1.1EM

Z:R1

169.101

22.281

65.838

-154.986n

FREQ.
1.18M

PROBE
V:1

1.18M

Z (IN)

=

69.2

+j

154.3

23

	

CHARLES A. HECHT

&ASSOCATES, INC.
BROADCAST ENCIN EERI NC CONSULTANTS

WPLX TONER 2 OTHER OPEN)
BRANCH LABEL NODES VALUE
1

Vi

0

0

100.

2

Ri

1

0

100.1<

3

R2

1

2

0.1

4

Li

2

0

1.

5

L2

2

3

7.4u

6

Ci

3

0

20.p

7

R3

3

0

194.3

J 239.5

FREQ.
i.18M

?RO8S
V:i

VALUE
0.36223

dH
-8.820

PHASE
54721

PHASE DELAY
-128.815n

1.18M

V:2

0.362173

-8.822

54.734

-128.846n

1.18M

V:3

0.318937

-9.926

49.069

-i15.5iin

i.18M

Z:Ri

362.23

25.590

54.721

-i28.8i5n

Z (IN)

209.2 +j 295.7

24

	

CHARLES A. HECHT

& ASSOCIATES, INC.
BROADCAST ENGINEERING CONSULTANTS

WPLX TOWER 1 DAY
BRANCH LABEL NODES VALUE
I

Vi

0

0

100.

2

Ri

1

0

100.1<

3

R2

1

2

0.1

4

Li

2

0

566.5u

5

L2

2

3

7.2u

6

Ci

3

0

2O.p

7

R3

3

0

59.6

J 97.7

FREQ.
1.18N

PROBE
V:1

VALUE
0.158095

dB
-16.022

PHASE
68.702

PHASE DELAY
-161.728n

1.1814

V:2

0.158059

-16.024

68.736

-161.808n

1.1814

V:3

0.111992

-19.016

58.825

-138.477n

1.1814

Z:Rl

158.095

21.969

68.702

-161.728n

1.1814

I:R2

999.427u

-60.005

-0.084

198.785p

1.1814

I:R3

978.571u

-60.188

0.210

-493.234p

z(IN) = 57.4 +j 147.3
1(1W/OUT)

1.0213, -.29 DEG.

25

	

CHAR1ES A. HECHT

& ASSOCIATES, INC.
BROADCAST ENGINEERING CONSULTANTS

WPLX TOWER 2 DAY
BRANCH LABEL NODES VALUE
1

Vi

3

0

100.

2

Ri

1

0

i00.K

3

R2

1

2

0.1

4

Li

2

0

566.5u

5

L2

2

3

7.4u

6

Ci

3

0

20.p

7

R3

3

0

429.9

J 1.1585K

EREQ.
1.18N

PROBE
V:1

VALUE
1.141

dB
1.146

PHASE
71.810

PHASE DELAY
-169.044n

1.18M

V:2

1.14097

1.145

71.815

-169.055n

1.18M

V:3

1.10387

0.858

70.958

-467.039n

1.18W

Z:Ri

1.141K

30.573

71.810

-169.044n

1.18W

I:R2

996.497u

-60.030

-0.623

i.4672n

1.18W

T:R3

893.321u

-60.980

1.317

Z(1N)

=

356.2 +j 1084.0

I(IN/OUT) = 1.1155, -1.94 DEG.

26

-3.10107n

	

CHARLES A. HECHT

& ASSOCIATES, INC.
BROADCAST ENGINEERING CONSULTANTS

WPLX TOWER 1 CRITICAL HOURS
BRANCH LABEL NODES VALUE
1

Vi

0

0

100.

2

Ri

1

0

100.1K

3

R2

1

2

0.1

4

Li

2

0

566.5u

5

L2

2

3

7.2u

6

Ci

3

0

20.p

7

R3

3

0

71.9

J 80.4

FREQ.
1.181K

PROBE
V:i

VALUE
0.148061

dB
-16.591

PHASE
62.066

PHASE DELAY
-146.107n

1.181K

V:2

0.148014

-16.594

62.101

-146.188n

1.181K

V:3

0.105693

-19.519

48.475

-114.il2n

1.181K

2:R1

i48.06i

21.704

62.066

-146.iC7n

1.181K

I:R2

999.307u

-60.006

-0.075

176.555p

1.181K

I:R3

979.907u

-60.176

0.280

-659.S2lp

Z(IN) = 69.4 -i-i 130.8
I(IN/OUT}

i.0198, -.36 DEG.

27

	

CHARLES A. HECHT

& ASSOCIATES, INC.
BROADCAST ENGINEERING CONSULTANTS

WPLX TOWER 2 CRITICAL HOURS
BRANCH LABEL NODES VALUE
1

Vi

0

3

100.

2

Ri

1

0

100.K

3

P.2

1

2

0.1

4

Li

2

0

566.5u

5

L2

2

3

7.4u

6

Cl

3

0

20.p

7

R3

3

0

628.9

J 177.3

VALUE
0.641832

dB
-3.852

PHASE
23.226

PHASE DELAY
-54.676n

FREQ.
1.18W

PROBE
V:1

1.18W

V:2

0.64174

-3.853

23.230

-54.6842n

1.18W

V:3

0.630474

-4.007

18.675

-43.9626n

1.18W

Z:Ri

641.832

28.074

23226

-54.676n

1.18W

I:R2

994.105u

-60.051

-0.146

343.42p

1.18W

I:R3

965.034u

-60.309

2.929

-6.89429n

Z(IN)

=

589.8

+j 253.1

1(1W/OUT) = 1.0301, -3.08 DEG.

28

	

CHARLES A. HECHT

& ASSOCIATES, INC.
BROADCAST ENGINEERING CONSULTANTS

HPLX TOWER 1 NIGHT
BRANCH LABEL NODES VALUE
1

Vi

0

0

100.

2

Ri

1

0

100.K

3

R2

1

2

0.1

4

Li

2

0

566.5u

5

L2

2

3

7.2u

6

Cl

3

0

20.p

7

R3

3

0

135.1

J 135.3

FREQ.
1.18M

PROBE
V:1

VALUE
0.224784

dB
-12.965

PHASE
54.995

PHASE DELAY
-129.462n

1.18M

V:2

0.224727

-12.967

55.016

-129.511n

i.18N

V:3

0.186357

-14.593

45.601

-107.347n

1.1814

Z:Ri

224.784

23.518

54.995

-129.462n

1.1814

I:R2

998.712u

-60.011

-3.106

1.1814

I:R3

974.663u

-60.223

0.559

Z(IN) = 128.9 +j 184.1
ICIN/OUT)

1.0247. -.67 DEG. V

29

-i.31488n

	

CHARLES A. HECHT

& ASSOCIATES, INC.
BROADCAST ENC IN EERI NC CONSULTANTS

WPLX TONER 2 NIGHT
BRANCH LABEL NODES VALUE
1

Vi

0

0

100.

2

Ri

1

0

100.K

3

R2

1

2

0.1

4

Li

2

0

566.5u

5

L2

2

3

7.4u

6

Cl

3

0

2U.p

7

R3

3

0

143.9

J 134.4

FREQ.
1.18M

PROBE
V:i

VALUE
0.230172

dB
-12.759

PHASE
53.400

PHASE DELAY
-125.707n

1.18M

V:2

0.230113

-12.761

53.420

-125.754n

1.1GM

V:3

0.191846

-14.341

43.646

-102.744n

1.18N

1:R1

230.172

23.621

53.400

-125.707n

1.18M

1:R2

998.629u

-60.012

-0.106

249.578p

i.i8M

1:R3

974.32u

-60.226

0.601

-1.41437n

Z(IN

=

137.2 +j 184.8

I(IN/OUT)

1.0249, -.11 DEG.

30

CHARLES A. HECHT

&ASSOCIATESJNC.
BROADCAST ENQNEERNG CONSULTANTS

EXHIBIT VI

TOWER BASE CIRCUIT ANALYSIS MODEL

The above circuit was analyzed with the engineering circuit analysis program (ECA) for
each tower. Resistors Rl (100k ) and R2 (0.1 ) were located in the circuit for measurement
locations of impedance and current.
For each of the individual tower impedance calculations, the complex value of R3 was
that obtained from the program Expert Mmmcc Broadcast Professional Version 6.0 for that
3J

CHARLES A. HECHT

&ASSOOATES, INC.

BROADCAST ENC INEERINC CONSULTANTS

specific tower. The input impedance to the circuit was calculated to represent the value at the
test jack located at the Antenna Tuning Unit (ATU) output.

In the case of the directional arrays, the complex value of R3 for each tower was set to
the Expert Mininec Broadcast Professional Version 6.0 calculated impedance at each source
location for that mode. The current magnitude and phase variation were calculated for each
tower from the input to the output of each circuit. These values, once normalized, were used to
modiFj the calculated source current magnitude and phase to determine the sampling TCT
values.

32

CHARLES A. HECHI

& ASSOCIATES, INC.
BROADCAST ENGINEERING CONSULTANTS

FIELD STRENGTH MEASUREMENTS
Reference field strength measurements were made using a Potomac Instruments FIM-41
field strength meter, serial number 2181, of known calibration, at three locations along radials
specified on the construction permit and on the major lobe radial for each mode of operation.
The measured field strengths, descriptions, and GPS coordinates for the reference measurement
points are shown below. All locations indicated are listed using NAD 27 datum.

550

Daytime Radial

Point
No.

Dist.
Km.

Latitude

Longitude

_____________

__________

1

1.05

35° 08' 49.7"

90° 07' 33.0"

Time
Local
1656

Field
mV/rn

Point Description
______________________

810

Slab foundation north of 1 55
Service Road
2303 N Second St. Administration
Building Mailbox
Thomas St. westedgeatentrance
ramp

________
350

11' 21.5"

2

9.32

_______

_______

__________________

3

11.30

35° 12' 01.6"

_______ _______ _________________

90° 03' 03.5"

1759

48.8

_______________

_______

_________

1750

32.4

90° 02' 04.0"
______________

_______ ________

189.5° Daytime Radial

Point

Field
mV/m

90° 09' 03.9"

Time
Local
1400

Latitude

Longitude

__________

________

35° 04' 04.0"

1

Dist.
Km.
8.35

_______

_______

___________________

________________

_______

_________

2

9.25

35° 03' 35.0"

90° 09' 07.3"

1410

20.6

No.

_______ _______ _________________

3

9.65

______________

35° 03' 21.6"

90° 09' 06.1"

_________________

______________

20.4

_______ ________

16.1

1417

_______ ________

Point Description
_________________

Driveway off Riverport Road near
plant
2303 N Second St. Administration
Bui]ding Mailbox
Connecting road between two
service roads off Riverport Road

280.5° Daytime Radial
Point

Dist.

No.

Km.

1

2.81

______

2
______

3
______

90° 09' 55.8"

1452

172

__________

35° 08' 47.9"

35° 08' 52.4"

_______ _________________

4.22

Field
mV/rn

Longitude

_______ _________________

3.73

________

Time
Local

Latitude

35° 08' 55.2"

_______ _________________

______________

90° 10' 31.9"
______________

90° 10' 51.0"
______________

33

_______ ________

1458

101

_______ ________

1504

83.0

_______ ________

Point Description
_________________

ParkinglotAutoMart 1510E,
Broadway
Parking lot 1-lardware House
Seventh St.
EntrancetoGoodyearonOraham

St.

CHARLES A. HECHT

& ASSOCIATES, INC.
BROADCAST ENGINEERING CONSULTANTS

55° Critical Hours Radial

Point
No.

Dist.
Km.
1.05

Latitude

Longitude

_____________

__________

35° 08' 49.7"

_______ _______ _________________

2

9.32

35° 11' 21.5"

_______ _______ _________________

3

11.30

35° 12' 01.6"

___ ___ _______

90° 07' 33.0"
______________

90° 03' 03.5"
______________

90° 02' 04.0"

Time
Local
1702

Field
Point Description
mV/rn ______________________
Slab foundation north of! 55
700

_______ ________

1757

41.2

_______ ________

1740

30.0

______ ___ ___

Service Road
2303 N Second St. Administration
Building Mailbox
Thomas St. west edge at entrance
rap

235° Critical Hours Radial
Point

Dist.

No.

Km.

1

6.03

Latitude
__________

35° 06' 39.0"

_______ _______ _________________

2

10.4

35° 05' 18.6"

_______ _______ _________________

3

11.60

35° 04' 53.1"

Longitude
________

90° 11' 22.9"
______________

90° 13' 46.0"
______________

90° 14' 19.3"

Time
Local
1624

Field
mV/rn
34.0

_______ ________

1556

24.7

_______ ________

1553

21.8

Point Description
_________________

CR31O(Portkoad)Opposite
pole 345 WMU 00787
Southeast corner of Waverly and
E St. John Road
Caldwell Road opposite pole 6

55°Nighttime Radial

Point

Dist.

Latitude

Longitude

No.

Km.

__________

_________

Time
Local

1

1.05

35° 08' 49.7"

90° 07' 33.0"

1656

Field
mV/rn
1.80

_______________

_______

_________

2

9.32

35° 11' 21.5"

90° 03' 03.5"

1759

1.20

______

______

________________

______________

______

________

3

11.30

35° 12' 01.6"

90° 02' 04.0"

1750

0.84

______

_______ _________________

______________

_______ ________

Point Description
_________________

Slabfoundationnorthofl55
Service Road
2303 N Second St. Administration
Building Mailbox
Thomas St. west edge at entrance
ramp

235° Nighttime Radial
Point
No.
1

Dist.
Km.
6.03

______

_______

35° 06' 39.0"

90° 11' 22.9"

Time
Local
1624

_________________

______________

_______

Latitude

Longitude

_____________ __________

Field
mV/rn
5.70
________

2

10.4

35° 05' 18.6"

90° 13' 46.0"

1556

4.60

______

_______

_________________

______________

_______

________

3

11.60

35° 04' 53.1"

90° 14' 19.3"

1553

3.62

34

Point Description
______________________
CR310 (Port Road) Opposite
pole 345 WMU 00787

SoutheastcornerofWaverly and
E St. John Road
Caldwell Road opposite poLe6

CHARLES A. HECHT

&ASSOCrATES, INC.
BROADCAST ENGINEERING CONSULTANTS

POST CONSTRUCTION VERIFICATION
As shown in the as-built survey attached as Appendix 1, all towers were built as specified
to within one percent of the specifications provided in the pre-construction documents.

35

CHARLES A. HECHT

& ASSOCIATES, INC.
BROADCAST ENGINEERING CONSULTANTS

DECLARATION
The foregoing was prepared by or under the immediate supervision of Charles A. Hecht of
Charles A. Hecht & Associates, Inc., Pittstown, New Jersey, whose qualifications are a matter of
record with the Federal Communications Commission. All statements herein are true and correct
of his knowledge except such statements made on information and belief, and as to those
statements, he believes them to be true and correct under the penalty of perjury.

Respectfully submitted,
Is'
Charles A. Hecht
Charles A. Hecht & Associates, Inc.
16 Doe Run
Pittstown, New Jersey 08867
(908) 730-7959
August 21, 2009

36

	

206 Shoppingway Blvd.
P.O. Box 795
West Memphis, AR 72303

Sorrcll
on.ulting
engineers,_LLC

Telephone: 870-735-8084
Facsimile: 870-735-7993

July 20, 2009

Mr. Palmer Johnson, Station Engineer
Pollack Broadcasting Company
5500 Poplar, Suite 1
Memphis, TN 38119
Re:

Radio Tower - Legion Road
West Memphis, AR

Dear Mr. Johnson,
The bearing and distance between the two (2) radio towers at the end of Legion
Road in West Memphis, Arkansas is as follows:
N55°17'24"E
(See drawing attached)

168 feet

If you have any questions, please feel free to contact me.

Sincerely,

Dennis Sorrell
Sorrel! Consulting Engineers, LLC
DS:mm

N

TOWER #2

SECTION 16, T-6-N, R-9-E
POLLACK BROADCASTING COMPANY

JULY 17, 2009
SORRELL CONSULTING ENGINEERS
WEST MEMPHIS, ARKANSAS