Radio Receiving Set AN/TRQ-23
Antenna Group OE-4/GR
AS-2360 Series Loop Antennas
Table of Antennas &
Receivers
Equipment Descriptions
TG-177/GR
Ant Drive
TG-176/GR
Shelter Ant Mount
IP740/GR
Azimuth Indicator
C-6183/GR
Antenna control
AS-2360
Loop Antenna
AS-2364
Loop Antenna
Antenna
Group OE-4/GR
R-901
Receiver
R-1518/URR-71
Receiver
Manuals
Frequency Coverage, Antennas &
Receivers
|
Band #
|
Freq MHz
|
Antenna
|
Type
|
Receiver
|
| 1 |
0.53 - 1.1 |
AS-2360/GR 0.53 - 10 (20.5)
MHz
Servo p/n 7040-LA |
loop |
R-901/GR |
| 2 |
1.1 - 2.3 |
"
|
" |
R-901/GR |
| 3 |
2.3 - 4.8 |
"
|
" |
R-901/GR |
| 4 |
4.6 - 9.9 |
"
|
" |
R-901/GR |
| 5 |
9.5 - 20 |
AS-2361/GR 10 - 20 MHz
Servo p/n 7040-LB
AS-2360/GR 0.53 - 10 (20.5) MHz |
loop |
R-901/GR
0.536 - 20.5 MHz |
| 6 |
20 - 33 |
AS-2362/GR 19.5 - 33 MHz
Servo p/n 7040-LC |
loop |
? |
| 7 |
31 - 56 |
AS-2363/GR 31 - 56 MHz
Servo p/n 7040-LD |
loop |
normal mil rcvrs
R-1518
|
| 8 |
55 - 101 |
AS-2364/GR 55 - 101 MHz
Servo p/n 7040-LE
AS-2365/GR 95 - 210 MHz
Servo p/n 7040-HAD |
loop
H-Adcock
|
R-902/GR
95 - 405 MHz
R-1518
|
| no # |
190 - 1050 |
AS-2365/GR 95 - 210 MHz
AS-2366/GR 190 - 1050 MHz |
H-Adcock
Log Periodic |
R-902/GR
? |
no #
|
382 - 1020
|
?
|
?
|
R-903(XE-2)/PRD
|
The current version of this system may be
Equipment Descriptions
TG-177/GR
Portable Antenna Drive - Tripod mount WANTED
TO BUY
In this drawing you can see:
- Portable Antenna Drive TG-177/GR
- Tripod (Legs Electrical Equipment) MX-6334/GR
- Compass J23
15 RPM nominal (clutch energized) 24 VDC @ 300 mA
150 RPM (clutch deenergized)
18 - 32 VDC
TG-176/GR
Fixed Antenna Drive - Shelter mount WANTED
TO BUY
Rotates at 60 PRM (1 rev per second).
24 VDC @ 375 mA.
Since the continuous rotation speed can be up to 150
RPM a CRT type indicator will have a much longer life than a
mechanical indicator. The antenna pattern can be seen on
the screen and the null direction read out to within 2 degrees.
There has been a modification that disconnects the active
wire from Diode Input connector on the Front panel and adds a
BNC(f) connector to the rear panel, a pot on the rear panel,
Red & Black wires coming out the rear panel and a Sense
push button on the front panel (maybe to replace a momentary
rotary switch?).
On the Front and Rear panel there are a 4 pin Power Input
connector (ITT Canon 1S13114E8-4P)
and also a pair of Control Unit connectors (Burndy 14-12P)
with 8 small pins and 4 large pins.
The name plate says:
Indicator, Azimuth
IP-740/GR
Serial No. 47
Servo Corporation of America
PII No. DAAB05-67-C-2337
U.S.
Battery to Indicator Cable Assembly, CX-11950/U (5'0") must
have an ITT Canon 1S13114E8-4S connector.
There is a band switch with "sync" and band numbers 1
through 8 (see above table). The antennas all have
provision for 8 band positions, but only some are used in any
single antenna. The AS-2360 supports band numbers 1
through 5. The bands are changed by means of a 12 position
rotary solenoid in the antenna assembly. In position 6 the
coil of antenna sense relay (K1) is connected to the "Sense"
line pulling the line up to +36 volts (B+) allowing the control
unit to synchronize (SYNC) thus learning that the solenoid is on
step # 6. I expect that when the antenna control band
switch is placed in "SYNC" the solenoid rotates until position 6
where it stops. The solenoid only rotates in one direction
30 degrees per step.
The antenna can be rotated continuously at speeds ranging
from 15 RPM to 150 RPM (depending on which mount is used) or
can be manually turned CW or CCW.
The Front panel has connectors for the Indicator (Bendix
PT02E-14-12S) and Pedestal (Bendix PT02E-20-24S) .
The Rear panel has connectors for Power In (ITT Canon
1S13114E8-4S) and Pedestal (ITT Canon MS3114E14-19S).
Why is the rear Pedestal connector different than the Front
panel Pedestal connector?
The name plate says:
Control, Antenna
C-6183/GR
Serial No. 106 A
Servo Corporation of America
PII No. DAAB07-77-C-3294
U.S.
Control to Indicator Cable Assembly, CX-11952/U (5'0") looks like a 12 wire with male pins on one
end and female pinson the other end. Both connector
shells are MS3114E14 type.
Battery to Control Cable must have an ITT Canon 1S13114E8-4P
connector.
Control to Drive Cable Assembly CX-11953/U (100'0") WANTED TO BUY
AS-2360 Loop Antenna - Photo
Description from Fair Radio eBay
auction:
AS-2360 Loop Antenna .53 Mhz to
10 Mhz, usable to 20.5 Mhz.
Impedance 50 ohms
Null depth 25 db, bearing error less than 2 degrees.
Originally part of TRQ-23 radio receiving set.
The base of the loop contains a loop cathode follower with
Varactor diode for tuning, two RF amplifiers, and an output
cathode follower using 4/6612 tubes which require 36 v B+,
1.1v filament.
Tuning voltage 0-102 vdc, gain voltage 0-37 vdc, sense relay
24 vdc.
Comes with canvas bag, sense antenna (not pictured), connector
for antenna, schematic.
Not tested, used good physical condition. AS IS.
Approx size 6.4 x 26.2 x 61.8 (with sense antenna )
From the Fair Radio - 2020
October Sale web page:
"Loop Antenna .53 Mhz to 10 Mhz useable to 20.5 Mhz.
Impedance 50 ohms Null depth 25 db bearing error less
than 2 degrees. Originally part of TRQ-23 radio
receiving set. The base of the loop contains a loop
cathode follower with varactor diode for tuning two rf
amplifiers and an output cathode follower using 4/6612
tubes which require 36 v B+ 1.1v filament. Tuning
voltage 0-102 vdc gain voltage 0-37 vdc sense relay 24
vdc. Comes with canvas bag. 6.4×26.2×61.8 30 lbs sh.
Used" |
It has 6 separate loop windings that can be connected
by relays to operate in band numbers 1 through 5. It also
has a Varactor diode to allow resonating the antenna. The
R-901/GR and R-902/GR receivers output the diode tuning voltage
which is passed through the antenna indicator unit then the
control unit and finally to the antenna. Schematic.dwf (get the Autodesk free Volo
viewer to see this) and the corresponding parts list.
Connections to the AS-2360 (and probably all the other loops
are the same)
|
Pin #
|
Name
|
Description
|
|
1
|
Relay Ground |
? return for pin 5, big current pulses? |
|
2
|
Loop Gain |
control voltage to 6612 RF amp screen grids |
|
3
|
Sense |
control voltage activates sense ant & for Sync |
|
4
|
Filament 1.5 DC volts |
to drive 4 6612 tubes in parallel
WHAT IS THE VOLTAGE? 1.5 VDC |
|
5
|
Band switch |
Bipolar pulses to change bands |
|
6
|
Ground |
|
|
7
|
+36 |
B+ for 6612 tubes |
|
8, 9
|
N.C. |
|
|
10
|
Diode Tuning |
0 to +? VDC range for
VA-521A varactor diode? |
|
A1
|
RF |
output coaxial connector (DC blocked) |
Photo of rotary solenoid, 4 deck switch
and resistor board
The 30 deg/step rotary solenoid was made by Ledex
- p/n 128558-001 date code 7913.
From their records the drive voltage is 28 VDC and a 50
millisecond pulse would be long enough to latch.
Remember that the B+ voltage is 36 (see pin # 7 above).
The 12 position, 4 deck rotary switch was made by Grayhill.
The connector on the base of the
AS-2360 (inside the lower tube) is a special DB15(m).
It has a coax connector in the center that has a male shield
and a female center contact.
It may be a Cannon Combo
D but I have not figured out their part numbering
system.
Mouser carries a D-Sub
Mixed Contact Connector and the 152-FM11W1S housing
looks correct.
Page
165 shows these connectors. It's not clear
which of 152-FMX1067, 3067, 0003P or 0003S is the correct coax
insert.
AS-2364 Loop Antenna - Photo
Label: Antenna, AS-2364/GR, Serial
No. 61 A, Servo Corporation of America, PII No.
DAAB07-77-C-3294, U.S.
Antenna Group
OE-4/GR -
In the above cover drawing for TM 11-5985-360-10 you can
see:
- 2 receivers on the left
- antenna control unit C-6183/GR
- IP740/GR Azimuth Indicator on top of the control unit
- TG-177/GR Portable Antenna Drive
- J23 Magnetic Compass
- some cables
made by
Servo Corp who made the
rotator.
NSN 5985-00-227-8115
R-901 Receiver
536 kHz to 20.5 MHz in 5 bands. CW,
MCW and AM modes. 455 kHz IF with 1.5 or 4.0 kHz bandwidth
by mechanical filters. Built in crystal
calibrator. Filaments 1.5 V @ 445 ma, Plates 45 Volts @ 30
ma.
The plate circuit of the third IF amp V1 is fed to a transistor
circuit that generates a negative voltage depending on the
strength of the IF signal to drive the DF display. A
separate circuit is used for the audio output.
TM 11-5820-783-14 Operator's,
Organizational Direct Support, and General Support Maintenance
Manual Radio Receiver R-901/GR, NSN 5820-000-136-4974, 17 Sep
1973, Change 2 -
contact brooke
to buy a pdf version.
In addition there are:
TM 11-5820-783-20P Org Parts Manual
TM 11-5820-783-24P DS Parts Manual
TM 11-5820-783-34P DS & General Parts Manual
R-1518/URR-71 Receiver
Description
I got this receiver because it has a "DIODE" BNCf connector on
the front panel and that's an indicator that it will work with
the Rotating antennas that may have started with the
TRQ-23. (Also see Radio Direction Finding for earlier CRT
based DF equipment)
Portable receiver, battery (12 ea. "D" cells) or external
110/220 VAC power (50 to 400 Hz), or external 24 VDC power;
19.0 to 157.5 MHz, AM, FM, CW.
Uses AS-2887/UR Tape Whip antenna with TNCm connector attached
to ANT 1 where "Trim" peaks the response;
CW-1005/UR Field carry bag.
ANT2 is for a 50 Ohm Antenna.
Accessories
Headphones, like the H-218/GR with 1/4" phone plug.
110 VAC Power Cord: CX-10956 p/o Accessory Kit MK-1517/UR
220 VAC Power Cord: CX-10957 p/o Accessory Kit MK-1517/UR
24 VDC Power Cord: CX-???
Power Connector
|
CX-10956/U (10 Ft, 0 In.)
5995-00-029-4158
Mfr 19976 09/83
Line Hot: C-H
Line Neutral: L
Gnd: F
Jumper: A-B-K
The 12 Socket connector is the U-290/U like
used on the CX-4722 Antenna Control Cable
for the MX-6707.
|
Power
J2
|
Function
|
24 VDC
Cable
|
110 VAC
Cable
CX-10956/U |
220 VAC
Cable
CX-10957/U |
J1
DB15
|
A
|
AC in
|
nc
|
A - B -K
|
A - K
|
14
|
B
|
AC in
|
nc |
A - B -K |
B - C
|
7
|
C
|
AC in
|
nc |
C- H - Line
|
B - C
|
5
|
D
|
AGC out
|
nc |
nc |
nc |
9
|
E
|
+24 VDC in
|
E - K
|
nc |
nc |
13
|
F
|
Ground
|
Ground
|
Ground
|
Ground
|
12
|
H
|
AC in
|
nc |
C - H
|
Neutral
|
6
|
J
|
Shield Ground
|
nc |
nc |
nc |
|
K
|
AC in (fuse)
|
K - E
|
A - B -K |
A - K
|
15
|
L
|
AC in (fuse) |
+24
|
Neutral
|
Hot
|
3
|
M
|
Audio Out
|
nc |
nc |
nc |
1
|
N
|
Diode Out
|
nc |
nc |
nc |
8
|
-
|
+18 VDC
Internal Battery
|
- |
- |
- |
4
|
-
|
Dial Light Sw
|
- |
- |
- |
10 00
|
-
|
+ 18V
External Power
|
- |
- |
- |
11
|
Photos
Fig 1
|
Fig 2 Twelve
"D" Cells = 18 VDC
 |
Fig 3
 |
Fig 4
 |
Fig 5
 |
|
R-1518 Manual
TM 11-5820-770-14 Operator's Organizational, Direct Support,
and General Support Maintenance Manual, Receiving Set, Radio
AN/URR-71, NSN: 5820-00-013-8944, Aug 1972, Change 2
Manuals
TM 11-5985-360-10 Operator's
Manual, April 1979
This is a redone version of a scanned and converted to text page.
TM 11-5825-242-10 Radio Receiving Set AN/TRQ-23
I am looking for more information about
the AN/TRQ-23 & OE-4/GR email Brooke
Brooke's PRC68, Products for Sale, Personal Home page, Military Information page
