Codan Radio Communications VT-3H040-S-HSO User Manual

4 

VT-3H040 VHF Enhanced Transmitter Instruction Manual 

Standby Current and rise time: 

95 % RF power, 95 % system deviation within; 

 (See also 'Transmitter Main 

•  10 ms: typ. 185 mA (Mode 4); 

 Board Instruction Manual) 

•  25 ms: typ. 160 mA (Mode 2); 
•  50 ms: typ. 15 mA (Mode 1); 
• Mode 3 not used in Synthesized Transmitters. 

DOC Type Approval RSS119 Issue 6

FCC Type Acceptance: Parts 22, 90  FCC ID: H4JVT-3H040-S 

Operating Temperature Range: 

-30˚ C to +60˚ C, optional -40˚ C temperature test. 

Operating Humidity: 

95% RH (non-condensing) at +25˚ C. 

Operating Voltage: 

+13.8 Vdc Nominal (range +11 to +16 Vdc), 
+9.5 Vdc Regulated. 

Total Transmit Current: 

0.8 Amp typical;  1.2 Amp maximum 

Front Panel Controls: 

NORM (repeat mode), OFF, and KEY TX (Tx on). 

PTT Activation: 

Active to ground with or without time-out timer. 
Microphone activated with or without time-out 
timer. 
Front Panel switch: KEY TX - without time-out 
timer; NORM - with or without time-out-timer; 
Isolated (optional relay) with or without time-out 
timer. 

PTT Time Out Timer: 

Selectable from 1 sec. to 8 hrs. (factory set 5 min.).