Vectronics VEC-1012K User Manual
Page 22
VEC-1012K Owner’s Manual
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1. POWER: Push-on/push-off switch turns unit on and off. The VEC-1012K
runs on internal battery power and shouldn't be left ON for extended period
when not in use.
2. TUNE: Electrically tunes receiver oscillator, setting frequency where signals
are received. Tuning range may vary slightly from unit to unit, but should be
approximately 154 to 158 MHz (the frequencies where most public service
and marine activity take place).
3. SQUELCH: Adjusts threshold-point for cutting off receiver background
noise.
4. VOLUME: Adjust audio amplifier gain a comfortable listening level.
Periodically check battery condition:
Operating your radio with a weak battery may lead to unstable tuning (signals
drifting off channel rapidly), weak or distorted audio, and motor boating (a low-
frequency "putt-putt-putt" noise in your speaker or headphones). Your radio
needs a minimum of 7-8 volts in order to work properly.
Antennas:
The VEC-1012K requires an external antenna. For local reception, a 17" length
of wire may work reasonably well. However, for longer-range reception, a low-
cost ground-plane or VHF scanner antenna mounted out-of-doors and fed with
coaxial cable provides much better performance. You may purchase one from
Radio Shack or many other sources. Alternatively, you may make your own
"side-mount" vertical dipole using the following diagram: