EFJohnson 7243 LTR-Net Portable UHF manual Monitoring Before Transmitting

Models: 7243 LTR-Net Portable UHF

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CONVENTIONAL FEATURES

3.Press the key until receiver noise is heard and then press until the noise just mutes. To decrease or increase the selected level in steps of 10 (or select the minimum or maximum level if this is not possible), press FCN or FCN , respectively.

NOTE: Slight readjustment may be required if weak messages are not heard or unsquelching occurs when no messages are present.

4.To exit this mode, press the FCN SQL again. Exiting also occurs auto- matically after 2 seconds of no activity.

5.If both narrow and wide band channels are used, perform this adjust- ment for each type because separate settings are maintained.

Monitoring Before Transmitting

General

Regulations require that conventional channels (groups) be moni- tored before transmitting to make sure that they are not being used by someone else. If you were to transmit when someone else is talking, you would probably disrupt their conversation. Proceed as follows to auto- matically or manually monitor conventional channels. In the LTR-Net and LTR modes, monitoring is always performed automatically.

Automatic Channel Monitoring

If the selected group is programmed with the Transmit Disable On Busy feature (see page 50), monitoring is performed automatically. If not, it must be monitored manually using one of the methods which follow.

Busy Indicator

With scanning disabled and the squelch properly adjusted (see page 48), note if “BUSY” is indicated in the display (see following illus- tration). If it is, a signal is being detected on the selected group (channel) and you should not transmit a message until it turns off.

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Image 48
EFJohnson 7243 LTR-Net Portable UHF manual Monitoring Before Transmitting