Continental Electronics 317C-1 User manual

73000-5
11 in AT MR ABNIRSONIA TCTVRT
INSTRUCTION MANUAL
PUBLICATION DATE, 1 APRIL 1975
rvt CO -
4212 S. BUCK !DALLAS. TEXAS 75217
REV B EQ1-27

73000-5
rAM BROADCAST
TRANSMITTER
ra
INSTRUCTION MANUAL
1111 IR Al a a
. 7.
.111 a as a a a
11 q(g
a Al
1111111=akutiii.
PUBLICATION DATE, 1 APRIL 1975
C-crnlirwt_t_a_LMFG. CO
1:2 S BIJCKNER BLVL7. L. -IA L_TEXAS 7 X217
REV B EQ1-27

.e1
0
3
3
j
3°le IS Oa 00E2_
tt2Cc"12eC7er) F DitZ
I T- S
ivorv-I) ckrre
3
',St'
v5e 120 /7000 -Thi
Dj-as-r- L3 (scrhrewto-17-r) my)
6 FdL Lower 4't'14 77A,
01/(160 etV ed, tJ
FigSr,
G P
La(wog IZ-f A -4/D 19-1),7/57- 3
prtso Cifeci< A-roccrvi- OF COW -a.
c.cryylevTeg
-0
ZRI
-L
1:11*
-4S s
d
TI Aw
rl CA0A:ad1I6S- 44451.41C11101525;47314:7
Fri/
rAR/E/ .; roc; t _4'
Pere
I AW.
2.15
R4
S S../.7-e//
5 2r
CRS
RIZ/474Re
IM
IN"
ti:
01
110
171,
3.711
'I111 C44 Si!
44
3
MelIRK
11.t RI MILAMP
314
,0441
S
ci
urt
MI( 57:44
....f, sower
,--. -ED St
A7 7 r! c# "Y1
XY/ AY1
U
R77J.5,5
/1 RZO
1310If 3311
CI
-
27011, 4.111
-1P0
IP,/2210
CIS
7[1..
1/112.2$
0T1T-1
s- 47
R16sex
R30
`11-`'ce7
rie4
17
-14
L44715
.leR11
- R41
@/0Mr /Am r 7330 441sco
0 L0544-0-15/5 s r 1- Nome
R/07/ 0 7 ; 2'f:C: "6:1 t
(g)
1IS
Ise ss/ PLI R43
2,.. R411
01)
,.. ...... .
er * RSi *RS5II. g
,re P0o .71 R111
*
TO/ I, :::Asss 1SLO 55.,
30 1 sic U. 6
-e3
:*RSA 41ASS *R
ff e 0 if, as, 014
-470 "7
012 SS -8/0
/04 Rata If
/0 ...`"
2.70c .,
ASO / t/4 -s-
3.1-19/0 '156 571010RS? eR7 11441 oz., ,PIIP
_ ez ID R.,'" Aq3 3ss F
"°04/2147k .1: TiC/L7 "",..,0.3
Hp 04 011
OVERLOAD 4.4.15voro7,53P14.4
1110.054
xer
MI 1
-r;S7
,
ICS BM S
R76
ism
CIS40.*1
ir,8A.51"(10
1_.1170
:At
/!KL. imam?"
RS4
r
3RD
rave
RigCI! 250
112
53.*l P3assee
Si r
$s -Al 13S
01I2I7
E11/7
RIO?4.5
e-04
0/r
111,84404
LP(
RLI
R4034
II0 034
TRIP
17000200.20 RNS 1114
C/1
R.14./ 47
450. L 5/
;-1
ss
X04
an.3-1
* 0;761.76 /0,
CE' L-Nr 10340
W01057
10 Lf 114
4,
P010 '4, R
CP 1.1""P
R44* -4C11412.
SI,
11., a
XV/ Ara 112I
Rig 34
12 02
X.;
,C1
fir, :4 34
07/05
'le- E.
A010 5/X01/R 72o. 5
33-111
Art474
°INx7/ moo, 1.0.1
0.5 CAL R4:21
4- 011/012
R730.5
ar
C14"°.ii
LAX 3 47
b000l/sa
IIl0, fitertm
st-1
firfs 0008 INTERLOCKS
cr<D-c>0-0
P141 Ar" SII
S
PO 1AR AROmr
SLOWER
100:00VIR TIMER
30!XK/1
fA
,..1373r-
cro_rigte)6c
KS Ke
'0 IS 01
K11
iR
7
I,,Imotz
itcs_q7
-I- I(
44)
LIME PI
MOW! 040mIst
Af,
314
0
TZ
Lug&
------
454i
Pe
"mg&SS --
b
SSW 771144
PA I A74401m7tams
"LA, MS
WIC)res
rif
- - _
74
-I
Lai05
t4"/1
CAB
I1
re`41
TM Zi f
°
P3

GALL E X AS
BROADCAST TRANSMITTER CUSTOMER LIST
MEDIUM FREQUENCY
SEPT 1976
LOCATION CUSTOMER TYPE FREQ.
KHz
2000 kW
1. Belgrade, Yugoslavia Radio -TV Beograd D323A 683
2. Saudi Arabia Northern Project D323C
3. Saudi Arabia Northern Project D323C
4. Saudi Arabia Northern Project D323C
1000 kW
1. Munich, Germany VOA (L.F.1105B 173
2. Okinawa, Ryukyu Is. VOA 105B 1178
3. Poro, Philippines VOA 105B 1140
4. Ban Phachi, Thailand VOA 105B 1580
5. Alexandria, Egypt UAR 323B 773
6. San Jose, Costa Rica LaVoz de la Victor D320C 625
7. Taipei, Taiwan BCC D320D 600/1000
8. Saudi Arabia Northern Project D320E -
500 kW
1. Isle of Rhodes VOA (1/2)105B 1259
2. Kavala, Greece VOA (1/21105B 791
3. Bonaire, Neth. Antilles TWR 320A 800
4. Enugu, E. Nigeria ENBC D319A 620
5. Seoul, Korea KBS D319C 1060
250 kW
1. Bogota, Colombia Radio Sutatenza 319B 810
2. Taipei, Taiwan Kuang-Hua Station 319D 800
200 kW
1. Hue, South Vietnam VOF D318A 655
150 kW
1. Juarez, Mexico XEROK 318.5A 800
2. Frankfurt, Germany AFNE 318.5A 872
1

Location
1. Taipei, Taiwan
2. Mexico City, Mexico
3. Villa de Cura, Venezuela
4. Taipei, Taiwan
5. Medellin, Colombia
6. Mexico City, Mexico
7. Karachi, Pakistan
8. Lusaka, Zambia
9. Kitwe, Zambia
1. Tampa, Fla.
2. Memphis, Tenn.
3. Vancouver, B.C.
4. Pasadena, Calif.
5. Detroit, Mich.
6. San Antonio, Texas
7. Dallas, Texas
8. Los Angeles, Calif.
9. New York, N.Y.
10. New York, N.Y.
11. Tulsa, Okla.
12. San Francisco, Calif.
13. Tucson, Arizona
14. Shreveport, La.
15. Atlanta, Ga.
16. Harlingen, Texas
17. San Jose, Costa Rica
18. Alexandria, Egypt
19. Alexandria, Egypt
20. Bonaire, Neth., Antilles
'7°717 -Tijuana, Mexico
22. Boston, Mass.
23. Barquisimeto, Venezuela
24. San Juan, P. R.
25. Portland, Oregon
26. Cyprus
27. Sussex, United Kingdom
28. Mobile, Alabama
29. Caracas, Venezuela
30. Manzini, Swaziland
31. Mbabane, Swaziland
32. International
33. Saigon, So. Vietnam
34. Rangoon, Burma
35. Minneapolis, Minn.
36. Minneapolis, Minn.
37. Saigon, So. Vietnam
38. Tokyo, Japan
39. Vancouver, B.C.
40. Brindisi, Italy
41. Oklahoma City, Okla.
Customer Type Freq. kHz
100 kW
BCC 318A 900
XEX 318A 730
Radio Rumbos 318A 570
Chinese Government 318A 1250
Accibn Cultural Popular 318A 590
XEW 318A 900
Radio Pakistan 318A 830
ZBS 318A 629
ZBS 318A 1071
50 kW
WINO 101 1010
WDIA 317 1070
CKWX 317 1130
KRLA 317 1110
WJR 317B 760
WOAI 317B 1200
KLIF 317B 1190
KF I 317B 640
WOR 317B 710
WHN 317B 1050
KVOO 317B 1170
KFAX 317B 1100
KUAT 317B 1550
KEEL 317B 710
WSB 317B 750
KGBT 317B 1530
La Voz de la Victor 317B 625
UAR 317B 773
UAR 317B 773
TWR 317B 800
XETRA 317C 690
WRKO 317C 680
YVMR 317C 690
WKVM 317C 810
KWJJ 317C 1080
DWS 317C 602
DWS 317C 926
WM00 317C 1550
YVLL 317C 670
Trans World Radio 317C
Swaziland Commercial 317C 539
Radio Caroline 317C 1187
AFRS 317C 540
Burma Bcstg. Service 317C 955
WCCO 317C 830
WCCO 317C 830
AFRS 317C 540
AFRS 317C 810
CHOM 317C 1320
RAI 317C 1448
KOMA 317C 1520
2

CPA LL A TEXAS
Location
42. El Aiun, Spanish Sahara
43. Munich, Germany
44. Philadelphia, Pa.
45. New York, N.Y.
46. New York, N.Y.
47. New York, N.Y.
48. Nashville, Tenn.
49. Vancouver, B.C.
50. Victoria, B.C.
51. Boston, Mass.
52. Fayetteville,
53. Anchorage, Alaska
54. Chicago, Illinois
55. Boston, Mass.
56. Calgary, Alberta
57. Fort Worth, Texas
58. Fort Worth, Texas
59. Dubia, Arabian Gulf
60. Caracas, Venezuela
61. Toronto, Ontario
62. San Diego, Calif.
63. Atlanta, Georgia
64. Hartford, Conn.
65. Quebec City, Quebec
66. Ottawa, Ontario
67. Caracas, Venezuela
68. New Delhi, India
69. Toronto, Ontario
70. Toronto, Ontario
71. Toronto, Ontario
72. Toronto, Ontario
73. Mexico City
74. Montreal, Quebec
75. Montreal,
76. Montreal, Quelac
77. Montreal, Quebec
78. Norfolk, Va.
79. Monterrey, Mexico
80. Winnipeg, Manitoba
81. Louisville, Kentucky
82. Seoul, Korea
'07 -Seattle, Washington
84. Regina, Saskatchewan
85. Calgary, Alberta
86. Winnipeg, Manitoba
87. Vancouver, B. C.
88. Cincinnati, Ohio
89. Edmonton, Alta
90. Ottawa, Ont.
91. Ottawa, Ont.
92. Dallas, Tex.
93. Edmonton, Alta.
94. Coral Gables, Fla.
95. Edmonton, Alta.
Toronto, Ont.
97. Rio de Janerio, Br.
Customer Type Freq. kHz
50 kW Cont'd
Radio Sahara 317C 656
AFRS 317C 1106
KYW 317C 1060
WOR 317C 710
WNEW 317C 1130
WNEW 317C 1130
WLAC 317C 1510
CBU 317C 690
CKDA 317C 1220
WBZ 317C 1030
WFNC 317C 940
KYAK 317C 650
WCFL 317C 1000
WHDH 317C 850
CFAC 317C 960
WBAP 317C 820
WBAP 317C 820
DBS 317C 1250
Radio Capital 317C 710
CKFH 317C 1430
KSDO 317C 1130
WSB 317C 750
WTIC 317C 1080
CJRP 317C 1060
CJRC 317C 1150
Radio Rumbos 317C 670
All India Radio 317C 600
CBL 317C 740
CJBC 317C 860
CBL 317C 740
CJBC 317C 860
XEQ 317C 940
CBF 317C 690
CBF 317C 690
CBM 317C 940
CBM 317C 940
VVZAM 317C 1110
XEMR 317C 1140
CBW 317C 990
WHAS 317C 840
HLKV 317C 900/710
KIRO 317C-1 710
CBK 317C 540
CHOR 317C-1 810
CKY 317C-1 580
CKLG 317C-1 730
WLW 317C-1 700
CHED 317C-1 630
CBO 317C-1 920
CBOF 317C-1 1250
KLIF 317C-1 1190
JCA 317C-1 930
WVCG 317C-1 1080
HOT 317C-1 1110
'CHUM 317C-1 1050
Radio Eldorado 317C-1 1180
3

Location Customer
20 kW
Type Freq. kHz
1. Belgrade, Yugoslavia RTB D316F 1061
2. Plymouth, Montseratt ARC D316F 740
West Indies 10 kW
1. Trois-Rivieres, Quebec CHLN 316 550
2. Trois-Rivieres, Quebec CHLN 316 550
3. Prince Albert, Sask. CKBI 316 900
4. Juarez, Mexico XEJ 316 970
5. Kaiserslautern, Germany AFRS 316 611
6. Berlin, Germany AFRS 316 935
7. Nurnberg, Germany AFRS 316 611
8. Grafenwohr, Germany AFRS 316 611
9. Stuttgart, Germany AFRS 316 1142
10. Bremenhaven, Germany AFRS 316 1142
11. Winnipeg, Manitoba CKRC 316B 630
12. Regina, Saskatchewan CKRM 3166 980
13. Edmonton, Alberta CJCA 3166 903
14. No. Battleford, Sask. CJNB 3166 1050
15. Montreal, Quebec CJAD 3166 800
16. Chatham, Ontario CFCO 316B 630
17. St. Boniface, Manitoba CKSB 316B 1050
18. Lethbridge, Alberta CJOC 3166 1220
19. Flin Flon, Manitoba CFAR 3166 590
20. San Francisco, Calif. KCBS 3166 740
21. Los Angeles, Calif. KNX 3166 1070
22. Los Angeles, Calif. KFI 3166 640
23. Salt Lake City, Utah KSL 316B 1160
24. St. Louis, Missouri KMOX 316B 1120
25. Chicago, Illinois WBBM 3166 780
26. Philadelphia, Pa. WCAU 3166 1210
27. Dallas, Texas KLIF 3166 1190
28. New York,N.Y. WHN 3166 1050
29. Calgary, Alberta CKXL 316B 1140
30. Havana, Cuba CMZ 316B 1010
31. Caracas, Venezuela Radio Capital 316B 710
32. Caracas,Venezuela Radio Rumbos 316B 670
33. Mesa, Arizona KDKB 3166 1510
34. San Francisco, Calif. KGO 316B 810
35. Valencia, Venezuela Radio America 3166 890
36. F! amilton, Ontario CKOC 316B 1150
37. Seattle, Wash. KIRO 3166 710
38. Halifax, N.S. CBH 3166 860
39. Barinas, Venezuela Radio Barinas 3166 1190
40. Maracaibo, Venezuela Radio Maracaibo 316B 740
41. Aswan, Egypt UAR 3166 1178
42. Alexandria, Egypt UAR 3166 1277
43. Seattle, Washington KOMO 3166 1000
44. Halifax, N.S. CHNS 3166 960
45. Kitchener, Ontario CHYM 3166 1490
46. Quito, Ecuador Radiodifusora Nacional 316B 640
47. International Radio Caroline 3166 1520
48. International Radio Caroline 3166 1520
49. International Radio Caroline 31613 1169
50.- International Radio Caroline 3166 1169
51. Mexico City, Mexico XERC 316C 790
52. Mexico City, Mexico XEQR 316C 1030
53. Mexico City, Mexico XEJP 316C 1150
54. Mexico City, Mexico XELZ 316C 1440
4

GALL AS. TEXAS
Location Customer Type Freq. kHz
10 kW Cont'd
55. Portland, Oregon KWJJ 316C 1080
56. Boston, Mass. WR KO 31fiC 680
57. Maracaibo, Venezuela La Voz de la Fe 316C 580
58. International Radio Veronica 316C 1562
59. International Radio Veronica 316C 1562
60. New Orleans, La. WTIX 316C 690
61. Lisbon, Portugal Emissora Nacional 316C 620
62. Leon, Mexico XEX 316C 730
63. Dallas, Texas KSKY 316C 660
64. Rosetown, Sas:,.. CKKR 316C 1330
65. Punto Fijo, Venezuela Radio Tropical 316C 830
66. Maracaibo, Venezuela RT Circuito 316C 980
67. Maracaibo, Venezuela Rt Circuito 316C 1180
68. Villa Cisneros, Sahara Radio Sahara 316C 998
69. Lima, Peru Radio Popular 316C 1040
70. Nashville, Tenn. WLAC 316C 1510
71. Kansas City, Mo. WHB 316C 710
72. Amman, Jordan HBS 316C 1949
73. Jacksonville, Fla. WAPE 316C 690
74. Amman, Jordan HBS 316C 856
75. Calgary, Alberta CHQR 316C 810
76. Amman, Jordan HBS 316C 856
77. Winnipeg, Manitoba CJOB 316F 680
78. Caracas, Venezuela Radio Uno 316F 1340
79. Monterrey, Mexico XEFB 316F 630
80. Boissevain, Manitoba CJRB 316F 1220
81. Oak Hill, W. Va. WOAY 316F 860
82. Kitchener, Ont. CKKW 316F 1090
83. Kitchener, Ont. CKKW 316F 1090
84. Winnipeg, Man. CKRC 316F 630
85. Trail, B.C. CJAT 316F 610
86. Cranbrook, B.C. CKEK 316F 570
87. St. John, N.B. CHSJ 316F 1150
88. Simcoe, Ontario CHNR 316F 1600
89. Orillia, Ontario CFOR 316F 1570
90. Chitre, Panama Radio Republica 316F 720
91. Chitre, Panama Radio Reforma 316F 860
92. Hato Rey, Puerto Rico WRAI 316F 1520
93. Winnipeg, Manitoba C KY 316F 580
94. Moose Jaw, Sask CHAB 316F 800
95. Chatham, Ont. CFCO 316F 630
96. Kitchener, Ont. CHYM 316F 1490
97. Winnipeg, Man. CFRW 316F 1470
98. Saskatoon, Sask. CJWW 316F 1370
99. Tacoma, Wash. KTAC 316F 850
100. Saskatoon, Sask. CFNS 316F 860
101. Edmonton, Alberta CHFA 316F 680
102. Toronto, Ont. CHIN 316F 1540
103. Ottawa, Ont. CBOF 316F 1250

Location Customer Type Freq. kHz
10 kW Cont'd
104. Ottawa, Ont. CBO 316F 920
105. Saskatoon, Sask CKOM 316F 1250
106. Victoria, B. C. CFAX 316F 1070
107. Caracas, Ven. CRN 316F 960
108. Caracas, Ven. CRN 316F 1080
109. Peterborough, Ont. CKPT 316F 1420
110. Hempstead, N. Y. WHLI 316F 1100
111. Sioux Falls, S. Dak. KSOO 316F 1140
112. Caracas, Ven. YVKH 316F 1300
113. Caracas, Ven. YVRT 316F 990
114. Taipel, Taiwan CAR 316F 590
115. Taipei, Taiwan CAR 316F 590
116. Taipei, Taiwan CAR 316F 590
117. Taipei, Taiwan CAR 316F 910
118. Coral Gables, Fla. WVCG 316F 1080
119. Bonavista, Nfld. CBC 316F 750
120. Hamilton, Ont. CHAM 316F 1280
121. Regina, Sask CJME 316F 1300
122. Prince Albert, Sask CKBI 316F 900
123. Swift Current, Sask CKSW 316F 570
124. Altona, Man. CFAM 316F 950
125. Yorkton, Sask CJGX 316F 940
126. Sarnia, Ont. CKJD 316F 1110
127. Vancouver, Wash. KGAR 316F 1550
5 kW
1. Gilmer, Tex. KHYM 315 1060
2. Montgomery, Ala. WHHY 315 1440
3. Logan, W. Va. WVOW 315 1230
4. Detroit, Michigan VVVVJ 315 950
5. Seattle, Washington KAYO 315 1150
6. Anchorage, Alaska KBYR 315 700
7. Villa de Cura, Venezuela Radio Rumbos 315 560
8. Portland, Oregon KPAM 315B 1410
9. Regina, Sask. CKCK 315B 620
10. Toledo, Ohio WSPD 315B 1370
11. San Juan, P.R. WHOA 315B 870
12. Mayaguez, P.R. WORA 315B 760
13. Denver, Colorado KOA 315B 850
14. Tulsa, Oklahoma KVOO 315B 1170
15. Oklahoma City, Oklahoma KTOK 315B 1000
16. Atlanta, Georgia WAOK 315B 1380
17. Ponce, P.R. WPRP 315B 910
18. Luxor, Egypt UAR 315B 1079
19. Sohag, Egypt UAR 315B 1142
20. Assut, Egypt UAR 315B 980
21. El -Minya, Egypt UAR 315B 1079
22. Miami, Florida WQAM 315B 560
23. Salem, Indiana WSLM 3158 1220
24. Modesto, Calif. KFIV 315B 1360
25. Johannesburg, S. Africa SABC 315B 1034
26. Johannesburg, S. Africa SABC 315B 827

CIAL L AS TEXAS'
Location Customer Type Freq. kHz
5 kW Cont'd
27. Johannesburg, S. Africa SABC 315B 1286
28. Abilene, Texas KRBC 315B 1470
29. Houston, Texas KXYZ 315B 1320
30. Portland, Oregon KPOK 3158 1320
31. Waterbury, Conn. WQQM 315B 1590
32. Nashville, Tenn. WMAK 315C 1300
33. Albuquerque, N. M. KR KE 315C 610
34. Chicago, Ill. WCFL 315C 1000
35. Dallas, Texas WR R 315C 1310
36. Siloam Springs, Ark. KUOA 315F 1290
37. Hartford, Conn. WPOP 315F 1410
38. Endicott, N. Y. WENE 315F 1430
39. Pittsburg, Pa. WTAE 315F 1250
40. Pittsburg, Pa. WTAE 315F 1250
41. Englewood, Colo. KWBZ 315F 1150
42. Aberdeen, So. Dak. KKAA 315F 1560
43. San Antonio, Texas KITE 315F 930
44. Springfield, Missouri KWTO 315F 560
45. Oklahoma City, Oklahoma WKY 315F 930
46. Saskatoon, Sask. CFQC 316F 600
47. Regina, Sask. CKCK 316F 630
48. Huntington, W. Va. WKEE 316F* 800
49. Seattle, Wash. KAYO 316F* 1150
50. Pittsburgh, Pa. WWSW 315F 970
51. Okla. City, Oklahoma WKY 315F 930
52. Moncton, N.B. CBAF 315F 1300
53. Saudi Ai abia M.O.I. 315F Mobile
54. Saudi Arabia M.O.I. 315F Mobile
55. Saudi Arabia M.O.I. 315F Mobile
56. Saudi Arabia M.O.I. 315F Mobile
57. Saudi Arabia M.O.I. 315F Mobile
58. Saudi Arabia M .0.1 315F Mobile
59. Dearborn, Mich. WN IC 316* 1310
60. Vancouver. Wash. KV AN 316* 1480
316F 10 kW Transmitters Wired for 5 kW operation
7

Location Customer Type Freq. kHz
1 kW
1. Kaiserslauten, Germany AFRS 314-2 611
2. H iedelburg, Germany AFRS 314-2 1304
3. Berlin, Germany AFRS 314.2
4. Bremerhaven, Germany AFRS 314-2
5. Grafenwoehr, Germany AFRS 314-2
6. Hof, Germany AFRS 314-2 1142
7. Ulm, Germany AFRS 314-2 1142
8. Garmisch, Germany AFRS 314-2 1502
9. San Juan, P. R. AFRS 314-2
10. Akron, Ohio VVH LO 314-2 640
11. Albany, Oregon KWIL 314-2 790
12. Owen Sound, Ont. CFOS 314-2 560
13. Havana, Cuba Radio Mamba 314-C 730
14. Lima, Peru Radio Juz 314-C 590
15. Detroit, Mich. WWJ 314-C 950
16. Tillsonburg, Ont. CHOT 314-C 1510
17. Maracibo, Venezuela Radio Reloj 314D 1330
18. Chatham, Ont. CFCO 314D 630
19. Juarez, Mexico XECJC 314D 1490
20. Caracas, Venezuela Radio Uno 314D 1300
21. St. Paul, Minn. WMIN 314D 1400
22. Aiken, S. C. WLOW 314D 1300
23. Langley, B. C. CJJC 314D 850
24. San Juan, P. R. WIAC 314D 740
500 Watt
1. Bissau, Guinea Emissora Provincial 313D
250 Watt
1. Houghton, Mich. WHDF 312 1400
2. Clarksville, Tenn. WDXN 312 540
3. Tillsonburg, Ont. CKOT 312 1510
4. Devils Lake, N. D. KDLR 312 1240

[TALL AS TEXAS
HIGH FREQUENCY
Location Customei Type
500kW
1. Greenville, N. Car. VOA 420A
2. Greenville, N. Car. VOA 420A
3. Greenville, N. Car. VOA 420A
4. Greenville, N. Car. VOA 420A
5. Greenville, N. Car. VOA 420A
6. Greenville, N. Car. VOA 420A
7. Barcelona, Spain Radio Liberty 420A
8. Barcelona, Spain Radio Liberty 420A
250 kW
1. Bonaire, Neth. Antilles Trans World Radio 419C
2. Kavala, Greece VOA 419D
3. Kavala, Greece VOA 419D
4. Kavala, Greece VOA 419D
5. Kavala, Greece VOA 419D
6. Kavala, Greece VOA 419D
7. Kavala, Greece VOA
8. Kavala, Greece VOA 419D
9. Kavala, Greece VOA 419D
10. Kavala, Greece VOA 419D
11. Kavala, Greece VOA 419D
12. Seoul, Korea KBS 419D
"100 kW
1. Dacca, Pakistan Radio Pakistan 418A/B
2. Lisbon, Portugal Emissora Nacional 4186
3. Lisbon, Portugal Emissora Nacional 418B
4. Lisbon Portugal Emissora Nacional 4186
5. Lisbon, Portugal Emissora Nacional 4186
6. Rawalpindi, Pakistan Radio Pakistan 4186
7. Salman Pak, iraq Radio Baghdad 418C
8. Salman Pak, Iraq Radio Baghdad 418C
9. Lourenco Marques,
Mozambique Radio Clube Mozambique 418C
10. Fu Wei, Taiwan Central Broadcasting Station 418D
11. Fu Wei, Taiwan Central Broadcasting Station 418D
12. Fu Wei, Taiwan Central Broadcasting Station 418D
13. Fu Wei, Taiwan Central Broadcasting Station 418D
14. Scituate, Mass. WYFR 418D
15. Scituate, Mass. WYFR 418D
16. Lampertheim, Germany Radio Liberty 418D
17. Lampertheim, Germany Radio L iberity 418D

Location Customer Type
100 kW (continued)
18. Bilbis, Germany Radio Liberty 418D-1
19. Bilbis, Germany Radio Liberty 418D-1
20. Bilbis, Germany Radio Liberty 418D-1
21. Bilbis, Germany Radio Liberty 418D-1
22. Bilbis, Germany Radio Liberty 418D-1
23. Bilbis, Germany Radio Liberty 418D-1
24. Bilbis, Germany Radio Liberty 418D-1
25. Bilbis, Germany Radio Liberty 418D-1
26. Lampertheim, Germany Radio Liberty 418D-1
27. Lampertheim, Germany Radio Liberty 418D-1
50 kW
1. Red Lion, Pa. WINB 417B
2. Bonaire, Neth. Antilles Trans World Radio 417B
3. San Jose, Costa Rica LaVoz de la Victor 417B
4. Scituate, Mass. WYFR 417B
5. Montserrat, W. Indies (ARC) Deutsche-Welle 417C
10 kW
1. Caracas, Venezuela La Voz de la Patria 416B
2. Bissau, Guinea Emissora Provincial 416B
3. Sao Tome Emissora Provincial 416B
4. Guatemala City, Guat. La Voz de la Guatemala 416B
5. Quito, Ecuador Radiodifusora Nacional 416B
6. U. S. Government 416D
7. U. S. Government 416D
8. Innsbruck, Austria OR F 416D
5 kW
1. Torino, Italy Galileo Ferraris 415C
1 kW
1. Overseas AFRTS 412-2
2. Lima, Peru Radio Luz 414C
3. Bissau, Guinea Emissora Provincial 414D
4. Sao Tome Emissora Provincial 414D

317C-1
TABLE OF CONTENTS
Section 1 - DESCRIPTION PAGE
1.1
1.2
1.3
1.4
1.5
1.6
INTRODUCTION
GENERAL DESCRIPTION OF CIRCUITRY
OPTIONAL EQUIPMENT AND CIRCUITRY
TECHNICAL CHARACTERIST:CS
TUBES AND SEMICONDUCTORS
RF AMPLIFIERS
1
1
3
4
5
6
1.7 RF DRIVER AMPLIFIER 7
1.8 FINAL POWER AMPLIFIER 8
1.9 OUTPUT NETWORKS 9
1.10 AUDIO AMPLIFIERS 10
1.11 MODULATOR 11
1.12 FEEDBACK AND NOISE REDUCTION 11
1.13 POWER SUPPLIES 12
1.14 PROTECTIVE CIRCUITS 14
1.15 MAGNIPHASE LINE PROTECTION SYSTEM 15
1.16 CONTROL CIRCUITS 16
1.17 AIR COOLING SYSTEM 2.22
Section 2- INSTALLATION
2.1 GENERAL 23
2.2 TRANSMITTER BUILDING REQUIREMENTS 23
2.3 CONDUIT AND WIRING 23
2.4 TRANSMITTER COOLING AND AIR EXHAUST 24
2.5 UNPACKING AND ASSEMBLY 24
2.6 INITIAL ADJUSTMENTS 30
2.7 ADJUSTMENT OF OVER -TEMPERATURE SWITCH 34
2.8 EXTERNAL CONNECTIONS TO 317C-1 TRANSMITTER 34.2
Section 3- OPERATION
3.1 CONTROLS AND INDICATORS 35
3.2 STARTING PROCEDURE 52
3.3 STOPPING PROCEDURE 52
3.4 TUNING PROCEDURE 52
3.5 TYPICAL METER READINGS 58
Section 4- MAINTENANCE
4.1 PREVENTIVE MAINTENANCE 63
4.2 CLEANING AIR FILTERS 66
4.3 LAMP ASSEMBLY MAINTENANCE 66
4.4 TROUBLE SHOOTING 67
4.5 ADJUSTMENTS 68
4.6 PROCEDURE FOR REPLACING SCREEN BY-PASS
CAPACITORS FOR TYPE 4CX35000 TUBES 70
iii

317C-1
LIST OF ILLUSTRATIONS
FIGURE TITLE PAGE
1Type 317C-1 AM Broadcast Transmitter. 1-0
2Simplified Block Diagram, Type 317C-1 AM Broadcast
Transmitter 2
3Simplified Schematic Diagram, Type 317C-1 AM
Broadcast Transmitter 7
4Typical Equipment Layout, Type 317C-1 AM
Broadcast Transmitter 25/26
5Assembly Diagram, Type 317C-1 AM Broadcast
Transmitter 27/28
6Power Amplifier Unit, Controls and Indicators .42
7Driver and Power Distribution Unit, Controls and
Indicators 44
8Rectifier and Harmonic Filter Unit, Controls and
Indicators 50
9HV Transformer and Regulator Unit, Controls and
Indicators 51
10 Rectifier and Harmonic Filter Unit, Front Door
Open, Interior Views 71
11 Rectifier and Harmonic Filter Unit, Rear Doors
Open, Interior View 72
12 Power Amplifier Unit, Front Door Open, Interior
Views 73
13 Power Amplifier Unit, Rear Doors Open, Interior
Views 74
14 Power Amplifier Unit Oscilloscope, Interior View 75
15 Driver and Power Distribution Unit, Front Door
Open, Interior Views 76
16 Driver and Power Distribution Unit, Rear Doors
Open, Left Interior View 77
17 Driver and Power Distribution Unit, Rear Doors
Open, Right Interior View 78
iv

317C-1
LIST OF ILLUSTRATIONS (Continued)
FIGURE TITLE PAGE
18 HV Transformer and Regulator Unit, Partially
Assembled, Interior View 79
19 Oscillator (PC Board), 2A1/2A2 80
20 RF Switch (PC Board), 2A3 81
21 RF Amplifier (PC Board), 2A4 82
22 Audio Input (PC Board), 2A5 83
23 Audio Amplifier (PC Board), 2A6 84
24 Oscillator Assembly 85
25 Oscillator Assembly Components, Left 86
26 Oscillator Assembly Components, Right 87
27 Magniphase Assembly Components, Top 88
28 Magniphase Assembly Components, Left 89
29 Magniphase Assembly Components, Left Rear 90
30 Magniphase Assembly Circuit Board 91
SCHEMATICS
UNIT TITLE DRAWING NO.
1Power Amplifier 119946
2Driver & Power Distribution 119939
2A1/A2 Crystal Oscillator 121099
2A3 RF Switch 119918
2A4 RF Amplifier 119943
2A5 Audio Input 119938
2A6 Audio Amplifier 119917
3Rectifier & Harmonic Filter 119945
-Terminal Layout Relays and Contactors 93966
-Lamp and Control Ladder 119994
v

317C-1
HV Plate
Transformer
73000-5
Unit 3
HV Transformer
and Regulator
HV Rectifiers
High Speed
Vacuum
Relays
(HV Power
Supply
Protection)
HV Filter
Capacitors
Cooling
Air Blower
Interplate
inductor
Low Voltage
Power
Supplies
Carrier
Plate
Inductor 73000-42
Unit 3
Rectifier and
Harmonic FilterFRONT VIEW
73000-S2
Unit 1
Power
Amplifier
Unit 2
Driver and Power
Distribution
RF Driver Tube
Power Amplifier Tubes
FRONT VIEW, DOORS OPEN
230-V 3 Phase
Modulator
Tubes
Audio Driver
Tube
Audio Input
Crystal
Oscillator
Power
panel
Overload
Relays
Peak Plate
Inductor
MAGNIPHASE
Coupler
L Network
Inductor
Tee
Network
le Inductors
Distribution Transformer
REAR VIEW, DOORS OPEN
Figure 1. Type 317C-1 AM Broadcast Transmitter
Second
Harmonic
Inductor
REV C EQ1-I
1-0

317C-1
SECTION 1 - DESCRIPTION
1.1 INTRODUCTION
This handbook contains
instructions for the installa-
tion, operation and maintenance
of the Continental Electronics
Type 317C-1 50 kW AM Broadcast
Transmitter. It is effective on
S/N 65 and above and should not
be used for transmitters with
lower serial numbers.
The Type 317C-1 Transmitter
can be tuned to operate on any
fixed frequency between 535 and
1620 kHz.
The Type 317C-1 Transmitter
consists of a main cabinet group
and the associated High Voltage
Transformer and Regulator cabi-
net (Figure 1).
The main cabinet group con-
sists of three separate cabinets
each of which is 48" wide, 54"
deep and 78" high. These cabi-
nets are located side -by -side and
are bolted together. The right
end cabinet houses the Driver
and Power Distribution which is
designated Unit 2. The center
cabinet houses the Power Ampli-
fier and is designated Unit 1.
The left end cabinet houses the
H.V. Rectifier and Harmonic
Filter and is designated Unit 3.
The H.V. Transformer and Regula-
tor cabinet is also designated
Unit 3 and is generally located
adjacent to the Rectifier and
Harmonic Filter cabinet,
although it may be located
wherever the customer desires.
The Type 317C-1 Transmitter
is completely self-contained, in
that no external driver or
exciter unit is required.
Only an audio input, a trans-
mitting antenna, and a source
of 4160 Volt, three phase,
primary power are required for
operation.
Electrical parts lists and
other supplementary data are
supplied within this handbook.
Throughout the descriptive
pages of this handbook, a
symbol number, when referred to,
will carry the unit number as
a prefix to the symbol number
in order to simplify location
on one of the schematics or
Electrical Parts Lists. Sepa-
rate schematics and Electrical
Parts Lists are used for each
of the three units.
1.2 GENERAL DESCRIPTION OF
CIRCUITRY (Figure 2)
a. RF Circuits. Solid state
circuitry is employed in the low
level stages which consists of
an oscillator, RF switch, RF
amplifier and RF output. A
4-400A is used as a Driver Ampli-
fier for the Final Power Amplifier.
The final power amplifier con-
figuration is a combination of
the screen -grid modulated ampli-
fier and the high -efficiency
Doherty amplifier.
Overall rf feedback is tapped
from the output of the trans-
mitter, rectified and applied as
negative feedback to the first
1

317C-1
/
OSC 1
(Al)
OSC 2
(A2)
SILICON
POWER
SUPPLIES
AUDIO INPUT
(AS)
INPUT
\SOLID STATE
CIRCUITRY
SOLID STATE CIRCUITRY
AUDIO
AMPLIFIER
(At)
RF AMP
(A4)
AUDIO
DRIVER
4 - 400 A
RF
OUTPUT
\
POWER AMPLIFIER
(2) 4CX3S000C
MODULATOR
(2) 3CX3000A1
Figure 2. Simplified Block Diagram, Type 317C-1 AM
Broadcast Transmitter
audio amplifier stage to reduce
noise and improve linearity.
b. Tetrode Final Amplifier.
The use of tetrode tubes in the
final power amplifier stage
offers many advantages:
(1) A minimum of rf driving
power is required, since a
tetrode is inherently a
high gain tube.
(2) Modulator power require-
ments are greatly reduced.
Constant rf excitation is
applied to the control grid
EQ2.1
of the tetrode tube while
audio modulation is applied
to the screen grid. Since
rf output is controlled
linearly by screen grid
potential, with relatively
low values of screen current,
an excellent method of modu-
lation is possible with very
little power being consumed
in the modulator.
(3) The screen grid is opera-
ted at ground potential
with respect to the rf
signal and serves as a
shield between the control
2