Operating Instructions

BTR-800, TR-800, TR-825 BTR-800 Base Station 11
BTR-800 Specifications
Overall
RF Frequency Range
TX Range
482-608 MHz in 18 MHz TX bands
US/Canada RX Range
572-608 MHz in 18 MHz RX bands
653-663 MHz for 3 band
470-488 MHz for 88 band
Rest of the World RX Range
572-608, 614-722 MHz in 18 MHz RX bands
Power Requirements
100-240 VAC, 50-60 Hz, IEC receptacle
Temperature Range
-4° F - 130° F (-20° C to 55° C)
Dimensions
19.00” W x 1.72” H x 14.00” D 
(48.3 cm x 4.4 cm x 35.6 cm)
Weight
7 lbs x2 oz (3.24 kg)
TX Antenna
1/2 Wave (supplied), TNC Male Connector
RX Antenna
1/2 Wave (supplied), TNC Male Connector
FCC ID
B5DM529
B5DM514
Frequency Response
300 Hz - 8 kHz
Four Wire Input
Level Adjustable (2 Vrms typical)
Four Wire Output
Level Adjustable (2 Vrms typical)
Telex Intercom
Input/Output Level Adjustable (1 Vrms typical),
Line Impedance 300Ω
RTS Intercom
Input/Output Level Adjustable (0.775 Vrms typical),
Line Impedance 200Ω
Clear-Com Intercom
Input/Output Level Adjustable (1 Vrms typical),
Line Impedance 200Ω
Auxiliary Input
Adjustable (2 Vrms typical)
Auxiliary Output
Adjustable (2 Vrms typical into 600Ω)
Stage Announce Output
Internally Adjustable (2 Vrms typical at rated
deviation into 600Ω)
Stage Announce Relay
Dry contact, rated at 1 Amp, 24V Max
Microphone input sensitivity
9mV
Local Headset Output
40mW output into 600Ω (1% Distortion)
Transmitter
Type
Two Synthesized Transmitters
Transmit Power (each transmitter)
100 mW Max (High), 10 mW (Normal)
Modulation Type
FM
Deviation
40 kHz
RF Frequency Stability
0.005%
Modulation Limiter
Peak-Responding Compressor
Radiated Harmonics & Spurious
Exceeds FCC specifications
Receiver
Type
Dual Conversion Superheterodyne, four Independent
Synthesized IFs, FM
RF Sensitivity
<0.8 μV for 12 dB SINAD
Squelch Threshold
20 dB SINAD
IF Selectivity
3 dB at 230 kHz
Image Rejection
70 dB or better
Squelch Quieting
90 dB
RF Frequency Stability
0.005%
Distortion
<1% at full deviation