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LBI-38421A

Scan operation will be determined by the following

conditions:

•

Priority 1, and Priority 2 and Non-Priority

Programmed*

The Priority 1, Priority 2, and up to six (6)

remaining channels in an eight (8) channel radio

or fourteen (14) channels in a sixteen (16)

channel radio will be scanned. Once a carrier is

detected (or correct Channel Guard tone is

decoded) the digital display will indicate the

channel. Sampling of the Priority 1 and Priority 2

channels continues while receiving a message on

a non-priority channel. Should a Priority 1 or

Priority 2 channel carrier (and correct Channel

Guard) be detected while a non-priority channel

is being received, the applicable indicator (P1 or

P2) lights and the channel is switched to the

Priority 1 or 2 channel, regardless of what is

being received on the non-priority channel. If a

Priority 2 channel is detected, sampling of the

Priority 1 channel continues. Once a carrier (and

correct Channel Guard is detected on the Priority

1 channel, the channel is switched to the Priority

1 channel regardless of what is being received on

another channel (non-priority or Priority 2). No

sampling occurs during transmit or if a Priority 1

channel is receiving.

•

Non-Priority Programmed:

Up to eight/sixteen (8/16) non-priority channels

may be scanned. Once a carrier is detected (or

correct Channel Guard tone is decoded) the

digital display will indicate the channel, Scan

will stop and remain on the channel until the

carrier disappears; after a few seconds scanning

resumes. The channels will be scanned in

descending order.

NOTE

*The rate at which the P1 and P2

channels are sampled while listening to a

non-priority channel depends on whether

a RF carrier is present or not. If no

carrier is present on P1 or P2, the scan

rate is fast. If a carrier is detected but

incorrect Channel Guard is present, the

rate slows considerably. This prevents

the non-priority signal from being badly

distorted by the larger mute times needed

to detect Channel Guard. If Channel

Guard is not programmed for P1 or P2,

the scan sampling rate remains fast.

Transmit In Scan Mode:

Several characteristics in the transmit mode occur if the

radio has beep placed in the scan mode of operation.

•

Radio is in scan mode but there is no carrier activity

to stop the scan on any channel. Removing the

microphone from its hookswitch will stop the

scanning activity and the radio will revert to the pre-

scan selected channel. Replacing the microphone will

enable the scan mode after a few seconds delay.

•

Radio is in scan mode and carrier activity on a

channel has caused scan to stop. Removing the

microphone from its hookswitch will keep that

channel selected. When push-to-talk (PTT) is pressed

on the microphone, the transmit channel will be the

displayed channel. The channel can be changed

during this time as needed but will be forgotten when

scanning resumes. Placing the microphone back on

the hookswitch will cause scan to resume after a few

seconds delay.

•

The Channel Guard decode is disabled whenever the

microphone is removed from its hookswitch.

•

During the scan mode the MONITOR and

CHANNEL selection functions are disabled if scan is

not stopped on a channel.

TO PROGRAM SCAN CHANNELS AND

SELECT PRIORITY

The selection of scan and priority channels is front panel-

programmable using the SCAN switch in conjunction with the

ADD and DELETE switch.

Non-Priority:

1. Confirm that radio is turned on (channel number is

lit). If not, press the POWER switch.

2. If SCAN indicator is lit, press and release the SCAN

switch to disable scan function.

3. Select desired channel using the ADD or DELETE

switch.

4. Press and hold SCAN switch, then press the ADD

switch once to add the channel to the scan list. The

“S” indicator will light to indicate that the channel is

now in the scan program.

5. Release SCAN switch.

6. Repeat steps 2 through 5 for each channel (up to

8/16) to be added to the scan list.

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 18

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