4
IGNITION NOISE INTERFERENCE
With weak signals, you may experience interference of the signal by background
noise. This radio has NB and ANL circuits which will help reduce background
noise from sources such as your ignition system. However, background electrical
noise may come from several sources and all noise may not be eliminated. With
extremely weak signals, you can operate this radio with the engine turned off,
which should improve reception. If the ignition noise level is too high to allow
proper operation under most conditions, you should have your installation of the
radio checked by a qualified technician.
ANTENNA
This radio has a jack in the rear for a standard PL-259 antenna plug. If you are
looking for the most range for your transmission, use a vertically polarized,
quarter-wave length antenna. If antenna height is a problem, you may use a shorter,
loaded-type whip antenna although you can expect some loss of transmission range.
To improve performance, your antenna should be matched to your radio. Your
antenna can be adjusted so that it matches your radio.
EXTERNAL SPEAKER
The external speaker jack (EXT SP.) on th e rear panel is used for remote receiver
monitoring. The external speaker should have 8 ohms impedance and be able to
handle at least 4 watts. When the external speaker is plugged in, the internal
speaker is disconnected.
PUBLIC ADDRESS
To use the Public Address (PA) function, first connect an external speaker to the
PA. SP. Jack on the rear of the radio. See the above specifications for a proper
external speaker. Keep the speaker away from the microphone to avoid acoustic
feedback.
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