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TR-825 Users/Owners Manual Page 3 
 

Specifications: 

 
Input Power…………………………………9.0 VDC Alkaline or NiMH. 
 
Antennas……………………………………Attached. 
 
Channels, two separate receive, one transmit, frequency agile, 25 KHz steps, within 
18MHz wide allotments. 
 
Frequency Range……..470-608 and 614-746 MHz. 
      (within 18MHz wide allotments). 
 

Transmitter: 

 
RF Power Output……………………………………….50 mW typical. 
 
Frequency Deviation……………………………………+/- 40 KHz Peak. 
 
Audio Frequency Response……………………………..300 Hz to 8 KHz. 
 
Microphone input level……………………..8 mV for 40 KHz Deviation. 
 

Receivers: 

 
Sensitivity……….0.8 uV typical, 1.1 uV maximum for 12 dB SINAD. 
 
Squelch………………………………………Opens at 20 dB SINAD. 
 
Modulation Acceptance……………………………..40 KHz Nominal. 
 
Audio Frequency Response……………………………..300 Hz to 8 KHz. 
 
Audio Output (headset)……………………………40 mW, 600 Ohms (1% Distortion). 
 
 
      END 

 

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