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RADIO HISTORY UK |
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COUGAR RADIO SYSTEM |
COUGAR EQUIPMENT BROCHURESCOUGAR EQUIPMENT OPERATING CARDSCOUGAR ANCILLARIESCOUGAR PRM4515H BAND SELECTIONCOUGAR PRM4515 CONVERSION TO CARRIER SQUELCHCOUGAR PRM4515 PROGRAMMING
The Racal Cougarnet system The Cougarnet communications system provides a flexible
radio network based on different combinations of standard units and is extremely
versatile in its adaptation to local requirements. It is easily expandable and
is simple to operate and control The integrated system comprises of a family of radio
stations Personal radio The personal radio is the basic building block of the
system It is available as follows PRM4515N Low band VHF with switchable tone squelch PRM4515L Low band VHF with
Tone squelch hard configured
on or off PRM4515H High band VHF with Tone Squelch hard configured
on or off PRM4515U UHF with tone squelch hard configured on Operating modes are F3E Narrowband FM simplex or two
frequency simplex and F1E 16Kb/s data and 10 channels. Channel bandwidth 25Khz with
a 12.5Khz frequency step,
Nominal RF output is 2w Clansman compatible audio interface TX time out adjustable 30-60-90-120 seconds Height(with battery) 223mm
width 75mm depth 30mm Weight (with battery )
0.75Kg Frequency data is stored in non volatile memory until
overwritten . Crypto key variable data is
retained for at least 15 minutes in radios configured with capacitor backup and
permanently in radios with battery backup. Key variable information can be
erased using the Zeroise function on the mode switch.
For ease of recognition Low band radios have Black knob
inserts High band radios Red Knob inserts and UHF have green Knob inserts. The radio uses a 10v Nicad battery model MA4516 low band range is 68-88Mhz whole band coverage High band range is 136-174Mhz
in 10 overlapping
20Mhz bands UHF range 403-470 in 20 overlapping 20Mhz bands There is
also a special UHF variant for 380-400Mhz Static, Mobile or Transportable Station (SMT) The SMT is based on a PRM4515 which is inserted into an
RF amplifier appliqué unit
TA4523HA or TA4523HB for VHF high band TA 4523U for UHF The VHF variants provide a
maximum of20w in their respective band and the UHF variant 10w, The VHF variant
can be switched between 2,10 and 20w and the UHF variant between 2,5 and 10w.
The SMT operated at full specification on a power supply between 12 ans 17v and
on a reduced output on a
supply of 10.8 and 12v In common with the PRM4515 the TA4523 frequency range
can be recognised by the colour of the Control knob inserts Black for low band
VHF, red for high band VHF and green for UHF.
Static Radio station
Mobile radio station The mobile radio station consists of an SMT and MA4730
extended control unit connected into a vehicle power supply and vehicle mounted
antenna.
Transportable station
The Transportable station consists of an SMT, hand microphone and an MA4025 12 V
battery attached and TNC whip antenna for the relevant band.
Transportable Repeater station The transportable repeater/
talkthrough station comprises of an smt with an extra appliqué unit for a second
PRM4515 and a MA4509 Digital Analogue repeater unit (DARU) and a Duplexer unit
for the frequencies used. It may also contain an MA4730 and an MA4025 battery
and/or a MA4177 mains power supply.
Helicopter station The helicopter station
comprises an SMT , a BCC597B aircraft interface unit
and a BCC584D control and display unit. The
BCC584D control unit has facilities for its own frequency fill which gives
selection of 30 pre-programmed channels.
Hill top site station A basic hilltop site
station consists of an FRM4525 base station this is based on the Ericsson F600
vhf base station transceiver connected to a station control unit, antenna
interface unit and a site control unit contained in a lockable steel cabinet.
Control of the Hilltop sites is achieved using an Outstation Link Control Unit
(OLCU) MA4527. This interfaces over the air or directly to a site control unit
and can control 256 outstations. It has facilities to change channels select
transmitters and receivers in dual systems and display alarm and status from
sites.
Programming of radios in the system is done by use of an MA4073B/C/G programming unit or an MA4083B/C/G Fill gun. Any unit can do frequency fills but each Programmer /Fill gun only programmes specific encryption versions C variants do MA4437 (green crypto board) and G variant is MA4487 (red crypto board). There is also an MA4477 crypto which is filled by the C variant.
COUGAR PRM4515 FAMILY TREE
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D. J. MCKAY G1JWG 2021 |