JEDI LOW BATTERY BEEP
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N4KVE
- Posts: 1652
- Joined: Wed Apr 02, 2003 10:35 am
- What radios do you own?: APX XTS XTL TRBO 900MHZ
JEDI LOW BATTERY BEEP
I have some UHF MTS 2000's type 1 UHF "R" split HT's. Most are from 96-99. A few from 2000 AAS&AAG. When trying to tx on a weak battery with the older radios the radio draws more than the battery can supply & the radio turns off momentarily, than pops on again. On the newer radios when trying to TX on a weak battery, the radio will BONK like trying to get into a busy trunking system & doesn't turn off because it doesn't xmit. Is this because of newer firmware in the newer radios? GARY N4KVE
Re: JEDI LOW BATTERY BEEP
Gary:
The older firmware radios were able to receive with minimal battery levels before they would simply quit.
Later firmware versions 'corrected' this discrepancy, and will shut down at or near a low voltage level as set by the RSS/CPS.
As for the trunked radios...if the radio was active on a trunked system and you turned off the radio, but the battery level was too low, it probably got caught in a power loop due to the fact that the radio could not transmit an ISW to tell the site controller it is being shut down, so if it does not receive the OSW, the radio 'thinks' it has to remain 'alive' and waits for the OSW before the controller can tell the radio to actually shut off.
Pulling the battery does the trick in this instance.
I have ancient firmware in one radio, and that unit will receive down to an actual dead battery condition, while my latest radios( R06.76) will stop receiving once the cell voltage drops below the minimal level)
Subsequent PTT presses only gets a constant tone and then a reset.
The older firmware radios were able to receive with minimal battery levels before they would simply quit.
Later firmware versions 'corrected' this discrepancy, and will shut down at or near a low voltage level as set by the RSS/CPS.
As for the trunked radios...if the radio was active on a trunked system and you turned off the radio, but the battery level was too low, it probably got caught in a power loop due to the fact that the radio could not transmit an ISW to tell the site controller it is being shut down, so if it does not receive the OSW, the radio 'thinks' it has to remain 'alive' and waits for the OSW before the controller can tell the radio to actually shut off.
Pulling the battery does the trick in this instance.
I have ancient firmware in one radio, and that unit will receive down to an actual dead battery condition, while my latest radios( R06.76) will stop receiving once the cell voltage drops below the minimal level)
Subsequent PTT presses only gets a constant tone and then a reset.