WSDI867 Posted June 24 Report Share Posted June 24 On 6/22/2024 at 11:54 AM, SvenMarbles said: It’s purely speculative on my end, but this issue REALLY sounds like whatever power source you’re using cannot supply adequate amperage to the radio while keyed on high.. Yes you are correct. My power supplies were both underpowered at around 5 amps 7 amp peak. Now I just need to find a cheap power supply.. I have been looking for 20 to 30 amps... what would be the ideal amperage? Quote Link to comment Share on other sites More sharing options...
Borage257 Posted June 24 Report Share Posted June 24 It’ll have to be wired up, but there’s this. https://a.co/d/05s7uRel Quote Link to comment Share on other sites More sharing options...
dosw Posted June 24 Report Share Posted June 24 2 hours ago, Borage257 said: It’ll have to be wired up, but there’s this. https://a.co/d/05s7uRel That one is listed at 12v, not 13.8. I never find 13.8v power supplies in 20A or more for less than $79 Quote Link to comment Share on other sites More sharing options...
Borage257 Posted June 24 Report Share Posted June 24 (edited) You can buy either a 12v or 15v. Both have adjustment screws to dial in your voltage. Edited June 24 by Borage257 Added snips for product and product data sheet dosw 1 Quote Link to comment Share on other sites More sharing options...
SteveShannon Posted June 24 Report Share Posted June 24 8 hours ago, WSDI867 said: Yes you are correct. My power supplies were both underpowered at around 5 amps 7 amp peak. Now I just need to find a cheap power supply.. I have been looking for 20 to 30 amps... what would be the ideal amperage? A 100 watt radio needs about 23 amps. A 50 watt radio needs about half that, maybe 12-15 amps. Quote Link to comment Share on other sites More sharing options...
WSDI867 Posted July 8 Report Share Posted July 8 On 6/24/2024 at 8:49 AM, Borage257 said: You can buy either a 12v or 15v. Both have adjustment screws to dial in your voltage. Thanks this power supply works great for my Retevis RA87 40watt GMRS radio. No more power failures. The power supply is quiet and hasn't needed to run the fan yet. Quote Link to comment Share on other sites More sharing options...
Borage257 Posted July 8 Report Share Posted July 8 1 hour ago, WSDI867 said: Thanks this power supply works great for my Retevis RA87 40watt GMRS radio. No more power failures. The power supply is quiet and hasn't needed to run the fan yet. You’re welcome! Pair it with a good LiFePo4 battery (20ah or more) and charger for emergency comms too! Quote Link to comment Share on other sites More sharing options...
WRCK329 Posted October 27 Report Share Posted October 27 Any feedback on duty cycle? Most mobile radios get extremely hot when used as a repeater. I can't find the listed duty cycle anywhere Quote Link to comment Share on other sites More sharing options...
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