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Section IV Operation (Continued)
6. SWR CAL CONTROL . In order for you to achieve maximum radiated power and
the longest range, it is important that your antenna be in good condition, properly
adjusted and matched to your transceiver. The Built-in SWR (standing wave
ratio) meter lets you easily measure your antenna condition. To operate this
function, connect your antenna to the transceiver antenna output connector.
Select a channel near the middle of the band such as 21 or the channel you plan
to use most frequently. Turn the power on, set mode switch to AM, and set the
meter function switch to the CAL position. Press and hold the microphone push-
to-talk button and using the SWR CAL control, adjust the meter to read the CAL
position indicated on the meter face. Then, without releasing the microphone
button, switch the meter function switch to the SWR position and read the SWR
indicated. The lower the figure, the better, with 1 being ideal. Generally
speaking, readings up to 3 are acceptable, but over 3 indicates that you are losing
radiated power and antenna adjustment may be advisable. This feature cannot
be used in Weather Mode.
7. VOICE LOCK FINE/COURSE. Allows variation of the receiver operating fre-
quencies above and below the assigned frequency. Although this control is
intended primarily to tune in SSB signals, it may also be used to optimize AM
signals. This feature cannot be used in the Weather Mode.
8. MODE SWITCH (USB/LSB/AM). This switch selects AM (Amplitutde Modula-
tion), USB (Upper Side Band) or LSB ( Lower Side Band) mode of operation. The
Mode selector switch changes the mode of operation of both the transmitter and
receiver simultaneously. This feature cannot be used in the Weather Mode.
9. CHANNEL SELECTOR. In the CB Mode, this electronic selector selects any one
of the forty Citizens Band channels desired. The selected channel appears on the
LCD readout directly above the Channel Selector knob. In WX Mode, any one
of the 7 Weather Channels will be selected.
10. INSTANT CHANNEL 9 BUTTON. Use to activate Emergency Channel 9 instantly.
11. ANL SWITCH. In the ANL position, the noise reduction circuits of the Automatic
Noise Limiter are activated. This feature cannot be used in the Weather Mode.
12. NB SWITCH. When this switch is placed in the NB position the RF noise blanker
is activated. The RF noise blanker is very effective for repetitive impulse noise
such as ignition interference. This feature cannot be used in the Weather Mode.
13. WX/CB SWITCH. Selects the mode of operation. In the CB position, the WX
function is placed in Alert mode and the unit will transmit and receive on the
selected CB frequency. In the WX position, select one of 7 Weather Channels for
continous WX monitoring.
Note: Clock is displayed when in Weather Mode.
14. SWR/SWR CAL/MOD SELECTOR. In the MOD position, the MOD meter is
activated. When in the SWR or SWR CAL positions the SWR meter is activated.
This feature cannot be used in Weather Mode. In USB or LSB mode, the MOD
meter does not operate.