URC-200 LOS Radio


© Brooke Clarke 2015

Background
Description
    Power
    Internal Power Supply Voltages
     Connectors
Photos
Related
References
Links

Background 

Designed for Line Of Sight (LOS) communications between 115 and 400 MHz in either FM or AM modes.  There are optional frequency bands of 30 - 90 MHz Tactical FM and 400 - 420 MHz FM. designed to replace the URC-100 series radios which covered some combination of VHF low band tactical FM, VHF high band aircraft AM and UHF aircraft AM.

Made by Motorola for Line Of Sight (Wiki: LOS) applications such as ground <-> air communications.

Description

Private Line (Wiki: CTCSS) tones, like used for amateur radio repeaters are available only when the UPL-100 option is installed.  The option is unobtainable.
I think you can not use a PL tone generator on a microphone because the audio circuitry will not pass the low frequencies, so it must be done either using the REMOTE connector or by mounting the tone generator inside the box and wiring it into the cipher text audio.

The audio connector has a not squelch output on pin F (see: U-229 Pin Out) so that a repeater or re-transmission setup can be easily made.

Power

Each battery plug (for BA-5590 type batteries) is wired to put both halves in series so they deliver 24 Volts.  For testing I used the WKW-7 Power Adapter because my BB-2590 was low on charge.

Internal Power Supply Voltages

Pressing <Mode> then <PWR> starts the metering function where Rx signal strength or Tx power is shown. 
Then pressing <R/T> brings up the internal power supply voltage for the +5 supply. 
Repeated pressing of <R/T> cycles through the various meter modes:  (Tx power or Rx signal) -> +5  -> +12  -> -5  -> -12  -> +24  -> +70  -> (Tx power or Rx signal)

Connectors

The REMOTE 26-terminal panel connector is marked: 52 SOU 851-07A16-26S50-A7
The connector needed to make a cable might be the: MS 3116E16-26 P
X-mode J2, Connects radio to peripheral devices such as COMSEC equipment, remote control unit and test equipment.

The remote uses RS-232 with ASCII characters.
Remote/X-Mode connector J2
Pin
Function
Impedance
Ohms
Level
A
Chassis Ground


B
Tx CT In

RS-232
C
PT in
150
1mV rms
D
Gnd, Audio


E
PT Out
600
0 - 6 Vpk
F
PTT-N
10k to +5V
Rx: +5 / Tx Gnd
G
+24VX Out

500mA max
H
Hi Lvl Bal PT In
600
0.77 Vrms
J
Hi Lvl PT Bal In rtn
2M to gnd
0.77 Vrms
K
WEN


L
Crypto sense-N


M
Rem Bal PT Out
600
5.5Vrms (max mod)
N
PT/CT Ctrl
150k
PT: Opn, CT: gnd
P
UHF/VHF-N Amp Ctrl
150k
Hi: UHF
R
FM/AM-N

Hi: FM
S
Rem Data Out
470
RS-232
T
Rx CT Out

RS-232
U
Spare


V
On/Off

+24V @ 7mA (Source)
W
On/Off rtn

+24 @ 7mA (input)
X
Gnd-Signal


Y
Key Sense-N


Z
Rem Bal PT Out
600
5.5Vrms (max mod)
a
Rem Data In
6k8
RS-232
b
Crypto Key


c
KID
Key Input Data for DVP


Remote data: ACK/NAK (HT: New acknowledge) codes in manual.

BA-5590 Battery/Power Connector J1 or J5
Pin
Function
1
Bat1: Neg
2
Bat2: Neg
3
nc
4
Bat1: Pos
5
Bat2: Pos (24V from ext)
6
nc

Handset connector J4 (See U-229 Pin Out)
Pin
Function
A
Gnd
B, E
Aud out
C
PTT
D
Mike
F
Sq out for Retransmit

Photos


Fig 1 Receiving 162.5250 MHz weather
DC power by WKW-7 Power Adapter
URC-200 LOS
                      Radio








Related

Radios - military, ham, civilian, &Etc.

References

CBD 2001 solicitation -
This is a Combined Synopsis/Request for Quotation for Commercial Supplies/Services prepared in accordance with the format in FAR 12.6, as supplemented with additional information included in this Notice. This announcement constitutes the only Request For Quotations and incorporates Provisions and Clauses IAW the FAR/DFAR. This is a SOLE SOURCE PROCUREMENT to General Dynamics Decision Systems Inc.
Item 0001 2 EACH 01-P41122F004 URC-500/DEX-XL: URC-200 with embedded encryption DES-XL algorithm
Item 0002 2 EACH 01-P35863M001 UAC-300: AC power supply for URC-200 and UPA-50
Item 0003 2 EACH 01-P35807M001 UIB-100: 28VDC input provides unfiltered 28VDC to transceiver and power amplifier
Item 0004 2 EACH 01-P35865M001 URM-100 rack mount
Item 0005 2 EACH 01-P343864E001 UPA-50: 50 Watt FM, 30 Watt AM power amplifier, cables and mounting kit
Item 0006 2 EACH 85-P35990M001 UVU-200: antenna, base station
Item 0007 2 EACH 30-P37421K011-200 URF-B61-200: cable, antenna200 Ft includes strain reliefs, LLL=user defined cable length
Item 0008 2 EACH 30-P27585D001 PTKY-103: URC-200 TO KY-57 Cable
Item 0009 1 EACH 30-P34328E001 UCA-75: KVL-3000 TO URC-500 Cable
Item 0010 2 EACH 01-P35848M001 PRM-100: 10 Watt rack mount system including
transceiver (URC-200),
AC power supply (UAC-100),
Rack mount (URM-100),
Base station antenna (UVU-200), and
50 FT Heliax Aantenna cable (URF-B61-050)
Item 0011 2 EACH 01-P34990E001 UPL-100: Private Line
Item 0012 1 EACH 30-P35867M001 UCA-100: 50' Retransmit Cable

Closing Date of Quote is December 13,2001, 12 pm Eastern Standard Time. Facsimile Responses are preferred at 757-462-4110. Please include your TAX ID Number, Cage Code, DUNS Number and Buy American Certification, when submitting your quote. Please provide your payment terms, and your estimated delivery date upon receipt of an order. Quotes will not be accepted unless you are registered on the Contractors

Links

Mike Murphy surplus - radio and WKW-7 Power Adapter

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