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@ Standby switch
This switch is used when you want to manually con.
trol transmit or receive.
SEND: Places the radio into transmit.
REC: Places the radio into receive.
The Standby switch is also used to clear an entry dur-
ing direct entry of VFO frequencies, or when entering
a memory channel.
~ ALC/PWR/SWR meter switch
ALC meter
Used to monitor the drive level in USB, LSB, and AFSK
modes.
PWR meter
Used to indicate the output power. Note that this meter
is a peak reading meter, not an average reading meter.
SWR meter
Used to indicate the Standing Wave Ratio of the an-
tenna and feedline connected to the ANT connector
when the AUTO/THRU switch is in the THRU position.
@ ATT (Attenuator) switch
The incoming receive signal level is attenuated by ap
proximately 20 dB when this switch is activated.
When the incoming receive signal is very strong (20
dB over 5-9), the signal should be attenuated to pre-
vent distortion of the signal, thereby stabilizing the
receiver performance. This is easily done by activat-
ing the A TT switch. This control is also useful when
a strong signal is near your desired signal, while some
loss will occur to the desired signal as well as the un-
desired signal, the use of the attenuator will sometimes
allow you to complete the 050.
@ NB {Noise Blanker} switch
When pulsating noise, such as that caused by automo-
bile ignitions is encountered, place the NB switch ON.
This will provide approximately 40 dB's of attenuation
to this interfering signal. If there is no noise present,
the switch should be in the OFF position. This switch
will not help to eliminate atmospheric or line noises,
only pulse type noise.
@ VOICE switch
When the optional VS-1 voice synthesizer unit is in-
stalled the operating frequency will announced
whenever the VOICE switch is depressed. For a dial
frequency of 14.200.0 the frequency will be an-
nounced as; "one", "four", "point", "two", "zero",
"zero", "zero", "zero".
Please refer to page 28 for installation instructions con-
cerning the VS-1 Voice Synthesizer.
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