UR3A – R9

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UR3A-R9 Specification



FM (45 kHz max. deviation)


Frequency Range

470 – 952 MHz*


Tuning Bandwidth

up to 80 kHz*


Antenna Type


Note: UR3 and attached microphone act as the antenna


Carrier Frequencies

up to 3200, tunable increments: 25 kHz*


RF Output Power

Selectable: 10 mW, 50 mW max.*


Power Requirements

2 LR6 AA batteries, 1.5 V, alkaline


Battery Life

typical, alkaline

without phantom power,

10 mW:

10 hours

with phantom power, 50 mW:

3 to 4 hours

frequency band dependent


Sensitivity Settings

mic, line


Gain Adjustment Range

−10 to +20 dB


32 kHz


Frequency Stability


Spurious Radiation

below carrier, typical

75 dB



Equivalent Input Noise

−127.0 dBV A-Weighted (audio front end)


Maximum Audio Input Level

at 0 dB gain setting

LINE setting:             +24 dBV

MIC setting:               −21 dBV