Telex TR-300 - Manual (Page 11)

TR-300 BELT-PACK TRANSCEIVER
TECHNICAL INFORMATION
-9-
SPECIFICATIONS TR-300
Overall
Power Requirements ..............................................................6 AA cells (Alkaline, NEDA, MN 1500)
Nickel-metal hydride optional
Current Drain....................................................................................................................typical 82 mA
Temperature Range ................................................................................-4°F to 130°F (-20°C to 55°C)
Dimensions...............................................................................................4.25” W x 4.125” H x 2.0” D
(108mm x 105mm x 51 mm)
Weight ..........................................................................................................13 oz (369g) with batteries
Transmit Antenna............................................................................................1/4-wave wire (attached)
Receive Antenna .............................................................................................1/4-wave wire (attached)
Transmit
RF Frequency Range ........................................................................................................150-216 MHz
RF Frequency Stability................................................................................Crystal Controlled, 0.005%
RF Power Output............................................................................................................50 mW Typical
Modulation........................................................................................................FM, 3000 Hz deviation,
115 micro-seconds Pre-emphasis
Modulation Limiter ................................................................................................Internal Compressor
Modulation Frequency Range .........................................................................300 to 5000 Hz +/_ 2 dB
Microphone Audio Input ..............................................................................................30 to 3500 ohms
Microphone Input Sensitivity.................................................................2 mV Dynamic, 4 mV Electret
Radiated Harmonics and Spurious Emissions ..........................................................................-45 dBC,
Exceeds FCC Specifications
FCC ............................................................................................Type Accepted Under Parts 90 and 74
Receive
RF Frequency Range ........................................................................................................150-216 MHz
RF Frequency Stability ......................................................................Crystal Controlled, 0.005% Type
Dual Conversion Superheterodyne, FM
RF Sensitivity .................................................................................Less than 0.5 µV for 12 dB SINAD
IF Selectivity ........................................................................................3 dB at 30 kHz (Ceramic Filter)
Image Rejection ..............................................................................................................70 dB or better
Squelch Quieting ...........................................................................................................................90 dB
Squelch Threshold........................................................................................................3.0 µV (Internal)
Signal-to-Noise Ratio ....................................................................................................................90 dB
Audio Output ......................................................................................32 mW into 600 ohms (Headset)
Distortion.................................................................................................Less than 1% at Rated Output