Fault Finding - mcmurdo R2 GMDSS Owner's Manual

3.6 Fault Finding

Symptom
Unit will not switch on
Scan or Memory Scan is
locking on a channel
without a signal
Dual Watch not being
entered
Cannot change channel
Certain channel numbers
are not obtainable
Will not transmit
Will not transmit on 5W
but OK on 1W
Transmissions persistently
weak
These simple checks should be carried out before seeking technical assistance and may save time and
expense.
Before contacting your servicing agent please obtain the radio's serial number and the software iteration
- this is shown in the large digits on the display for 2 seconds after the radio is turned on.
Page 14
Possible Cause
• Battery not charged
• Battery not attached correctly
to radio
• Noise on the channel is
holding the scan
• Priority channel selected
(normally Ch16)
• Dual Watch (D/W) engaged
• Some channels are restricted
and programmed out depend-
ing on country of purchase
• Scanning or D/W function active
• Low voltage when full transmit-
ting current is drawn
• Some channels are restricted to
low power transmission only
• Damaged antenna
Remedy
• Re-charge battery
• Ensure battery is fully
engaged (see section 2.4)
• Increase squelch level
• Inhibit channel from scan
• Select a working channel
• Exit Dual Watch
• Consult your national
authority for permitted
channels in your region
• Exit D/W or Scan
• Battery charge low -
recharge the battery
• Consult your national
authority
• Replace antenna