TM8100/TM8200 Service Manual General Information 133
© Tait Electronics Limited November 2007
Table 4.12 Audible indications
Type of tone Meanings
One short beep (1) After power-up — Radio is locked; PIN is required
(2) On power-down — Radio is off
(3) On pressing key — Key-press is valid
(4) On pressing function key — Function has been initiated
One short low-pitched beep On pressing function key again — Function has been terminated
One short high-pitched beep While powered up — Radio has been stunned
One long low-pitched beep (1) On pressing key — Key-press is invalid
(2) On entry of PIN — PIN is invalid
(3) On pressing PTT switch — Transmission is inhibited
Two short beeps (1) On power-up — Radio is ready to use
(2) On entry of PIN — PIN has been accepted and radio is ready to use
(3) After radio has been stunned — Radio has been revived and is ready to use
Two low-pitched beeps While powered up — Temperature of radio is high
Two high-pitched beeps While powered up — Temperature of radio is very high and all transmissions
will be at low power; if temperature rises further, transmissions will be inhibited
Three short beeps While powered up — Previously busy channel is now free
Three beeps During transmission — Transmit time-out is imminent; transmission will be
terminated in 10 seconds
Warble While powered up — Frequency synthesizer is out of lock on current channel;
LCD will usually display Out of Lock (graphical display), OL (2- or 3-digit display),
or L (1-digit display).
Continuous low-pitched
tone
While powered up — System error has occurred and radio might be inoperable;
LCD usually displays System Error (graphical display), E1 or E2 (2- or 3-digit
display), or E (1-digit display).
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