Mesit RF20 Handheld Eccm Transceiver Datasheet Manual

							 
Produced by: 
 
RF 20  
Handheld ECCM Transceiver 
 
 
 
 
Determination: 
 
RF20 handheld multiband transceiver with improved resistance to electronic 
warfare is designated for use at the lowest tactical command levels for all kinds of 
military units. According to the selected band, the transceiver ensures 
communication with HF transceivers R-150, VHF transceivers RF13 and airborne 
transceivers in Aircraft band I. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
						

							 
OPERATION FEATURES 
 
a) Common for all bands and operation modes: 
 
• 9 channel presets within the entire  frequency range or random sub-band. 
• Operation at fixed frequencies - simplex or semiduplex. 
• 150 Hz subtone squelch. 
• Automatic check of transceiver operability (BITE)  after turning ON (with malfunction indication). 
• Emergency erasing of information in cha nnels including built-in digital scrambler. 
• Turning off all acoustic signals at the request of operator. 
• Backlit display and keypad. 
• Indication of voltage level in battery pack. 
• Power rating signalisation on display, tr ansmission indication on control panel. 
• Transmission inhibition at the request of operator. 
• Whispering mode - with increased sensitivity  of modulator and reduced output audio power. 
• User-friendly dialog control. 
 
b) For HF band: 
 
• Operation at fixed frequencies only. 
• Data transmission through external modem at the rate of 4.8 kb/s. 
• HLG and HLA monitoring. 
• Sending of tone call (1000 ± 200) Hz. 
 
c) For VHF I band: 
 
• Operation at fixed frequencies or with changing the ope rating frequency in jumps - FH operation in (30.000 to 
87.975) MHz band. 
•  Transmission band for digital transmis sion of voice or data (16 kb/s). 
• Transmission security and communication security (TRANSEC/COMSEC). 
• At fixed frequencies: operation with open or encrypted  voice with internal digital scrambler. Operation of 
internal digital scrambler is compatible with di gital scrambler of the transceivers RF13 and RF1301. 
• Sending and receiving of short coded  messages (FLASH) with the identification of transmitting transceiver. 
Sound indication of the incoming short message. 
•  Sending of tone call (1000 ± 200) Hz. 
• Programming with an external device. 
• Keypad programming of one  fixed frequency channel. 
• Scanning through HLC, HLG, HLA and fixed frequencies of the channel.  
• Automatic synchronization or manual synchronization at the request of operator. 
• Change of control transceiver on the ba sis of the situation in network. 
• Joining the network later; register ing new transceiver in the network. 
• FF, FH, DFF, FCS and MIX operation modes. 
• Selective phonic operation between two specific network participants. 
• Exchanging (sending and receiving) of text m essages between specific network participants. 
• Sending of warning message to  all network participants. 
• Verification of authenticity of specific network particip ant and validation of his/her authorization to access the 
network.  
 
d) For VHF II band: 
 
•  Operation at fixed frequencies. 
• Monitoring of aircraft emergency frequency 121.5 MHz. 
• Sending of tone call (1000 ± 200) Hz. 
 
 
 
 
  
						

							 
e) For VHF III band: 
 
• Operation is done at fixed frequencies. 
• Data transmission through external modem at the rate of up to 4.8 kb/s. 
• Sending of tone call (1750 ± 25) Hz. 
 
TECHNICAL PARAMETERS 
  
Frequency range    25.000 MHz to 145.9875 MHz  
Frequency ranges   
HF (25.000 to 29.975) MHz  
VHF I    (30.000 to 107.975) MHz  
VHF II   (117.975 to 140.000) MHz  
VHF III   (140.025 to 145.9875) MHz  
Modulation type FM - HF, VHF I, VHF III bands 
  AM - VHF II band 
  
Channel spacing   
HF band   25 kHz  
VHF I band   25 kHz; 12.5 kHz; 6.25 kHz  
VHF II band  8.33 kHz  
VHF III band   25 kHz; 12.5 kHz  
Preset channels   10  
Number of channels monitored  3 (two adjustable, 
in all operation modes  third fixed at 121.500 MHz)  
Max. number of programmable networks  6  
Nominal input/output impedance  50 ohm  
Voice operation F3E  according to STANAG 4204  
Operation modes FF - fix frequency 
 FH - frequency hopping 
 DFF - digital fixed frequency 
 FCS - free channel search 
 MIX - mixed mode 
  
Operation time min. 10 hours at the duty cycle  1 : 1 : 10 with BP1301 NiCd battery pack  
transmission : reception : stand-by   
Time of autonomous synchronization  42 hours  
Power supply   
Nominal supply voltage   7.2 V  
Limit supply voltage  6.5 V to 9.5 V  
 
TRANSMITTER PARAMETERS:   
 
Transmitter nominal output for FM   2 W  
Transmitter nominal output for AM   1 W  
Transmitter decreased output for FM   0.2 W  
Transmitter decreased output AM   0.1 W  
Harmonics suppression  min. 40 dB  
Spurious suppression at > 25 kHz mistuning  min. 60 dB  
 
RECEIVER PARAMETERS:   
 
Sensitivity  0.5 µV at 12 dB SINAD  
Loudspeaker output power   200 mW  
Audio bandwidth   
F3E operation  (300 to 3 000) Hz  
DATA operation  (10 to 11 000) Hz  
 
 
  
						

							 
MECHANICAL PROPERTIES AND RESISTANCE:   
 
Weight transceiver  0.66 kg  
Weight battery pack  0.30 kg  
Dimensions transceiver [W x H x D]  91/76 mm x 217 mm x 44 mm  
Dimensions battery pack [W x H x D]  76 mm x 63 mm x 41 mm  
Operating temperature range  -30 °C to +60 °C  
Immersion  1 m depth  
Average ranges in a medium undulated and wooded terrain at nominal power  
with short tape antenna AS1301  0.8 km  
with long tape antenna AL1301  5 km  
 
RF20 TRANSCEIVER BASIC SET   (2300.000.02) 
 
RF20 ECCM HANDHELD TRANSCEIVER POWER SUPPLY BAG (7020.116.01) 
BP1301 BATTERY PACK ........... 2 pieces RF20 OPERATORS MANUAL (2300.010.02) 
0.5 m AS1301 SHORT TAPE ANTENNA RF20 SHORT OPERATING INSTRUCTIONS (2300.011.02) 
1.1 m AL1301 LONG TAPE ANTENNA 
RF20 TRANSCEIVER BAG (6000010032) 
RF20 SET BAG (6000010033) 
 
ANCILLARIES 
 
HP1301 NiMH BATTERY PACK RF13.51 HEADSET 
NA1301 POWER SUPPLY ADAPTER RF13.52 HEADSET (VOX) 
ND1301 DOUBLE CHARGER RM1301 HANDHELD MICROPHONE/SPEAKER 
NU1301 UNIVERSAL CHARGER PK20 FILL GUN 
NS1301 STANDARD CHARGER ADAPTER FG13 FILL GUN 
NK1301 TRICKLE CHARGER ADAPTER EU13 ENCRYPTION UNIT 
NS13 STANDARD BATTERY CHARGER KZ1301 TESTING DEVICE ADAPTER 
RF13.8 HANG-UP ANTENNA KZ13 TESTING DEVICE 
MD13.2 RADIO MODEM 
 
DEPLOY 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
For more information, please contact: 
 
 OMNIPOL a. s. 
 Nekázanka 11, 112 21 Prague 1 
 Czech Republic 
  
Phone: +420 224 011 120, Fax: +420 224 012 240 
E-mail: [email protected], http://www.omnipol.cz