Adjusting The Transmit Power; Using Scan - Uniden UM525 Owner's Manual

UM525 Paper OM.fm Page 22 Tuesday, January 4, 2005 2:54 PM
• If you transmit continuously for longer than 5 minutes, TX and the channel number
blink and the radio stops transmitting. This warns you that the PTT button might
be stuck. To resume transmitting, release the PTT button then press it again.
• The radio cannot transmit on Channel 15 (USA).
• If you hold down PTT while turning on the radio, the radio sounds an error tone
and TX and the channel number blink. No key except HI/LO/SCRAMBLER works.
• You cannot transmit while the radio is set to WX mode, Scan mode, or Triple
Watch mode. If you press PTT while the radio is set to Scan mode or Triple Watch
mode, the radio cancels that mode but does not transmit.
• The radio cannot transmit voice data on Channel 70. Only DSC data such as
Distress Call can be transmitted on Channel 70.

Adjusting the Transmit Power

Repeatedly press HI/LO/SCRAMBLER to adjust the transmit power. If the transmit
power on the currently tuned channel is set to Hi (25W), pressing HI/LO/
SCRAMBLER changes it to Lo (1W), and LO appears. If the transmit power on the
currently tuned channel is set to Lo, pressing HI/LO/SCRAMBLER changes it to Hi,
and HI appears.
Important: The radio automatically sets itself to low transmit power if you tune to
Channels 13, 67, 75, or 76. Although you cannot change the transmit power to
high on Channel 75 or Channel 76, you can change the transmit power to high on
Channel 13 or Channel 67 by holding down Hi/Lo/SCRAMBLER while transmitting
on those channels.
Notes:
• You cannot change the transmit power if the radio is set to Scan mode.
• The radio automatically sets itself to high transmit power if you use PUSH/SELECT
to tune to Channel 16, press 16/9 TRI, or it receives a distress call. The radio sets
itself back to low power if you use PUSH/SELECT to select another channel.

Using Scan

The radio has two scan options available; normal scan and Triple Watch scan. Normal
scan lets you quickly scan and tune only those channels you select. Triple Watch lets
you easily scan emergency channels along with a channel you select.
Note: If you hold down STEP/SCAN while the radio is set to WX mode or EMG mode,
it cancels that mode and starts memory channel scanning.
22
Basic Operation