Toa WT-770 User Manual

WIRELESS TUNER
OPERATING INSTRUCTIONS
WT-770
Please follow the instructions in this manual to obtain the optimum results from this unit.
We also recommend that you keep this manual handy for future reference.
TOA Corporation

Toa WT-770 Specifications

Power

power requirements	120V AC, 60 Hz ("L" version), 220~240V AC, 50 Hz ("H" version)
power consumption	8 W
DC input	12~18V DC, 250 mA max.
power supplied to antenna	9V DC, 30mA max.

Audio

audio output	–60 dBV, 600 , balanced
mixing output line	0 dBV, 10k , unbalanced
mixing output MIC	–60 dBV, 600 , unbalanced

Operating Environment

operating temperature	–10°C~50°C (14°F~122°F)
dimensions	210 × 47.5 × 280 mm (8.3" × 1.9" × 1.0")
weight	Approx. 2.2 kg (4.91 Ib.)

Receiving Specifications

receiving frequency	169.445 MHz~171.905 MHz (FCC Part 90/USA), 174.250 MHz~215.250 MHz (FCC Part 74/USA, D.O.C/CANADA), 173.8 MHz~175.0 MHz (MPT1345/UK), 202.1 MHz~203.7 MHz (DOC 60/AUSTRALIA)
receiving sensitivity	Under 20 dBµV(S/N : 75 dB/Deviation : 15 kHz)
squelch sensitivity	Approx. 14 dBµV
frequency response	100 Hz~12 kHz ±2dB
residual noise	Less than 30µ V (8µ V : A-weight)

Overall System Performance

transmission distance	30~100m (100~330 feet)
dynamic range (SNR)	Better than 90 dB (95 dB : A -weight)(60 dBµV, Maximum Deviation)
distortion	Under 1 %