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An SSB signal may be received only when the listening receiver is functioning in
the same mode. In other words, an upper sideband signal (USB) may be made
intelligible only if the receiver is functioning in the USB position.
If a lower sideband (LSB) signal is heard when the receiver is in the USB mode,
no amount of tuning will make the signal intelligible. The reason for this may be
understood if you consider that when modulation is applied to the transmitter’s
microphone in the USB mode, the transmitter’s output frequency is increased
whereas in the LSB mode the transmitter’s output frequency is decreased. The
result in listening to the receiver is that when the “BD” is in the proper mode
(either USB, or LSB), a true reproduction of single tone of modulation will result,
and if the tone is increased in frequency (such as a low-pitched whistle or a high-
pitched whistle) you will hear the increase in the output tone of the receiver. If
the incorrect mode is selected, an increase in tone of a whistle applied to the
transmitter will cause a decrease in the resultant tone from the receiver.
Thus when a voice is used in place of a whistle or tone, in the proper listening
mode the voice will be received correctly whereas in the incorrect mode, the
voice will be translated backwards and cannot be made intelligible by the voice
lock control. When listening to AM transmission, a correct sideband is heard in
either mode since both upper and lower sideband are received.
Once the desired SSB mode has been selected, frequency adjustment may be
necessary in order to make the incoming signal intelligible, the CLARIFIER
control allows the operator to vary frequency above and below the exact-center
frequency of the received signal. If the sound of the incoming signal is high or
low pitched, adjust the operation of the CLARIFIER. Consider it as performing
the same function as a phonograph speed control. When the speed is set too high,
voices will be high-pitched and if set too low, voices will be low-pitched. Also,
there is only one correct speed that will make a particular record produce the
same sound that was recorded. If the record is played on a turntable that rotated in
the wrong direction (opposite sideband) no amount of speed control
(CLARIFIER) will produce an intelligible sound. An AM signal received while
listening in one of the SSB modes will produce a steady tone (carrier) in addition
to the intelligence, unless the SSB receiver is tuned to exactly the same frequency
by the CLARIFIER control.
TO RECEIVE WEATHER
Press the WX button and select the desired channel for your area. The squelch
and scan functions do not operate in the weather mode.
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LIMITED WARRANTY.
Midland Consumer Radio will repair or replace, at its option without charge, any
Midland Mobile, Base Station, or full power Hand-Held Citizens Band transceiver