Icom IC-551D Instruction Manual page 23

21. Program ү frequencies of the high апа low edge of the desired scanning range іп Memory
Channels [2] and ІЗ. 1% does not matter in which Memory Channel the higher frequency is
programmed. For instance, program 50.2MHz in Memory Channel [2] апа 50.8MHz in Memory
Channel B].
2. Set the VFO Switch to "В" and the SQUELCH Control above the threshold. By depressing
the MS/MW Button, the scan is started from the high edge of the programmed range
(50.8МН2) to the lower frequency. Programmed Scan "В" is also an endless scanning орега-
tion, and when the scan reaches the low edge of the Programmed range (50.2MHz), it reverts
to the high edge and again starts down.
3. The scanning operation automatically stops when the SOUELCH is opened by any signals, and
| the signals сап be monitored. After approximately 16 seconds, the scan automatically starts
again from the frequency the scan stopped at, continuing to the lower frequencies.
4. Depressing the MS/MW Button while the scan is operating or during the 16 seconds of moni-
toring, clears the scanning operation and the VFO goes back to normal operation.
5. Depressing the MS/MW Switch again starts the scanning from the high edge of the programmed
range.
The scanning speed can be adjusted by the SCAN SPEED Control located under the access cover.
Rotating the control clockwise makes the scanning speed faster.
The Tuning Control does not function while the scan is operating. In Programmed Scan "В" mode,
during the 16-second stop of the scanning when the squelch is opened, the VFO can be used freely,
and after the 16 seconds, the scan starts from the frequency set by the VFO as long as the fre-
quency is within the programmed scanning range.
When faster scanning is required in SSB, CW or AM mode, push the TS Button to set the scanning
step at 1KHz. Normally the 1KHz-step scanning is good enough to search SSB, CW and АМ
signals and provides much faster scanning in the range.
NOTE: The auto-stop circuit functions with SSB, CW or AM signals, but the scan does not always
stop at the exact carrier frequencies. When the scan stop operating on one of these signals,
tune in to the signals for suitable reception by rotating the Tuning Control and by setting-
the MODE Select Switch to the proper mode.
PROGRAMMED SCAN B
50.2MHz
;
|
50.
Метогу Сћаппе!
Signal
Е
channel [3]
MS/MW Pushed
Return to the high edge
pushed | MS/MW Pushed
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