Radio Shack TRC-509 Owner's Manual page 13

Transmitter
RF Energy Output .............................. 10,000 V/m
@3 meters (FCC max)
Spurious and Harmonic Emissions ............... 20 dB
FM Hum and Noise ....................................... 40 dB
Audio Distortion ............................................. 10 %
Frequency Stability (0°C to 40°C) .............. ± 2 kHz
Specifications are typical; individual units might
vary. Specifications are subject to change and im-
provement without notice.
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