Operating instructions

RF Technology T350/T500 Page 21
7 SPECIFICATIONS 7.4 Electrical Specifications
7.3.3 Test Points
Line Input – Pin 6 + Ground (pin 1)
Forward Power – Pin 8 + Ground (pin 1)
Reverse Power – Pin 4 + Ground (pin 1)
Tuning Voltage – Pin 9 + Ground (pin 1)
Serial Data (RS-232) – Pins 2 / 3 + Ground (pin 1)
7.4 Electrical Specifications
7.4.1 Power Requirements
Operating Voltage - 10.5 to 16 Vdc with output power reduced below 12 Vdc
Current Drain - 5A Maximum, typically 0.25A Standby
Polarity - Negative Ground
7.4.2 Frequency Range and Channel Spacing
Frequency 25 kHz 12.5 kHz
330-365 MHz T350C T350CN
360-380 MHz T350A T350AN
375-400 MHz T350B T350BN
403-420 MHz T500A T500AN
430-450 MHz T500D T500DN
450-520 MHz T500B T500BN
7.4.3 Frequency Synthesizer Step Size
Step size is 10 / 12.5kHz or 5 / 6.25kHz, fixed, depending upon model
7.4.4 Frequency Stability
±1 ppm over 0 to +60 C, standard
±1ppm over -20 to +60 C, optional
7.4.5 Number of Channels
100, numbered 00 - 99
7.4.6 Antenna Impedance
50Ω