|
|
|
|
|
|
Tactical handheld radio
- this page is a stub
PRM-4720A
is a tactical portable military FM radio
for the VHF-L band (30-88 MHz), developed in the late 1980s by
Racal Tacticom Ltd. 1
in Reading (UK). The device was intended for tactical (non-secure)
use by the Army and was housed in a rugged green die-cast metal enclosure.
|
The radio is housed in a die-cast aluminium enclosure that has the same
form factor as the PRM-4515. It is powered
by a removable battery that is attached at the bottom. It can be pre-programmed
with up to 10 channels in the 30-88 MHz range, with a channel spacing of
25 kHz.
The unit delivers an output of 1 Watt into either a whip antenna or a
suitable helical. Note that multiple helical antennas are needed to cover
the entire frequency range.
It is shown here with antennas for 50 and 75 MHz.
At the side is a socket for connection of a
handset or a headset.
|
|
|
|
The 10 channels can be programmed manually (on the device) or by
means of the external MA-4083B fill gun.
A variant with built-in microphone/speaker was available as the PRM-4072B.
Furthermore, a sececure variant (with built-in crypto facilities) was available
as the PRM-4515.
|
-
Racal was taken over by Thales in 2000.
|
Device Handheld military VHF-L band transceiver Model PRM-4720A Manufacturer Racal Country UK Customers UK, Belize, Denmark, Cyprus, Greece, Kuweit Frequency 30 - 88 MHz Readout LCD display (at the side) Spacing 25 kHz Channels 10 Stability +-10 ppm Output 1 Watt Modulation Narrowband FM (F3E) simplex, F1E 16 kbps data Pilot tone 148.8 Hz Response 400 Hz - 2.5 kHz ±3dB (narrowband voice)
30 Hz - 10 kHz (wideband data) Power 10V DC Consumption 430 mA (typical) Battery MA-4721A rechargeable battery pack
MA-4516B primary battery pack
MA-4516G for 8 removable penlight cells Antenna Whip
Helicals (various types) Temperature -20°C to +55°C (storage: -40°C to +85°C) Dimensions 225 x 75 x 26 mm Weight 600 g
|
- Canvas pouch
- Whip antenna
- Helical antenna (50 MHz)
- Helical antenna (75 MHz)
- Handset
- Headset with boom microphone
- Battery (various types)
|
|
|
|
Any links shown in red are currently unavailable.
If you like the information on this website, why not make a donation?
© Crypto Museum. Created: Saturday 18 May 2019. Last changed: Monday, 07 November 2022 - 19:44 CET.
|
 |
|
|
|
