Telex BTR-300 Base Station Transceiver, Technical Information Specifications BTR-300

BTR-300 BASE STATION TRANSCEIVER

TECHNICAL INFORMATION

SPECIFICATIONS BTR-300

Input Power (minimum)		12V AC/DC at 360 mA
Intercom Output	330 mV (Low) or 1 V (Hi) RMS into 300 ohm load typical (at rated deviation)
Intercom Input (Gain Minimum)		300 mV RMS typical (for rated deviation)
Auxiliary Output	2 V RMS into 600 ohm load typical (at rated deviation)
Auxiliary Input (Gain Maximum)		60 mV RMS typical (for rated deviation)
Local Headset Input		2 mV RMS input nominal
		1.5 mV RMS input at compression (Dynamic)
Local Headset Output	.............................................................	32 mV maximum output into 600 ohmst
Speaker/Local Monitor Output (into 8 Ohms)		2 Watts (at rated deviation)
Temperature Range		-4￿F to 130°F (-20°C to 55°C)
Dimensions		15.75” W x 1.75” H x 10.5” D
		(40 cm x 4.5 cm x 26 cm)
Weight		4.5 lbs (2 kg)

	Transmit
RF Frequency Range	150-216 MHz
RF Frequency Stability	Crystal Controlled, 0.005%
RF Power Output	50 mW Typical
Modulation	FM, 3 KHz deviation.
	115 micro-seconds Pre-emphasis
Transmit Antenna	5/8-wave (supplied)
	SO239 connector on chassis
Modulation Limiter	Internal Compressor
Modulation Frequency Range	300 to 5000 Hz ±2 dB
Radiated Harmonics and Spurious Emissions	-45 dBC,
	Exceeds FCC Specifications
FCC	Type Accepted Under Parts 90 and 74

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