Yaesu VX-177, Руководство по эксплуатации

Страница: 39 / 88

VX-177 O
PERATING
M
ANUAL
37
S
CANNING
VFO S
CANNING
The VX-177 provides two VFO scanning functions: “Manual VFO Scanning” and “Pro-
grammed VFO Scanning.”
Manual VFO Scan
1. Select the VFO mode by pressing the [ VFO
(
PRI
)] key, if necessary.
2. Press and hold in either the [
(
MHz
)] or [ (
MHz
)] key for one second to initiate
upward or downward scanning, respectively.
3. If and when the scanner encounters a signal strong enough to open the squelch, the
scanner will halt temporarily; the decimal point of the frequency display will blink
during this “Pause” condition.
4. The scanner will then resume according to the Scan-Resume mode selected in the
previous section.
5. To cancel scanning, press the
PTT
switch or [
VFO
(
PRI
)] key.
Programmed VFO Scan
1. Select the VFO mode by pressing the [
VFO
(
PRI
)] key, if necessary.
2. Press and hold in the [
VFO
(
PRI
)] key for one second, then rotate the
DIAL
knob to
select the bandwidth for the Programmed VFO scanner. Available selections are ±1
MHz, ±2 MHz, ±5 MHz, PMS-x, and ALL.
PMS-x : The scanner will sweep frequencies within the currently-
selected PMS frequency pair. See page 41 for details.
ALL : The scanner will sweep all frequencies.
3. Press the [ VFO
(
PRI
)] key momentarily to save the new setting and exit to normal
operation.
4. Press and hold in the [ MR
(
SKIP
)] key for one second to start scanning.
5. If and when the scanner encounters a signal strong enough to open
the squelch, the scanner will halt temporarily; the decimal point of
the frequency display will blink during this “Pause” condition.
6. The scanner will then resume according to the Scan-Resume
mode selected in the previous section.
7. To cancel scanning, press the
PTT
switch or the [
VFO
(
PRI
)] key.
When you start the Programmed VFO Scanner, the VX-177 will be changing
frequency in the upward direction. If you want to change direction of the
scan while it is underway, rotate the DIAL knob one click in the opposite
direction (in this case, one click counter-clockwise). You’ll see the scanner turn around
and change frequency downward!