Gordon nailed it. Problem resolved. Thank you everyone for your replies.

73 de Tom - KB2SMS


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  Bingo Gordon! That was it. I'm showing 12v on transmit now. I had a squirrelly connection. Thank you for your reply.

73 de Tom - KB2SMS


On 3/18/19 2:53 PM, Gordon LaPoint wrote:
Its probably not the power supply, but the connectors/wiring/fuses between the radio and the power supply.

Gordon - N1MGO

On 3/18/19 2:47 PM, Tommy wrote:
  Ahhh, O.K., with my 13.2v Astron it's showing 10.3 - 10.8. I guess for now with this power supply I'll have to settle for 5 watts. Thank you for the quick reply.

Tom - KB2SMS


On 3/18/19 2:36 PM, Walter Underwood wrote:
Set the display to show the power supply voltage and watch it while you transmit. The transmitter requires a voltage over 11 V for more than 5 W.

If the voltage is dropping below 11 V, that is the problem.

This in the specifications section of the KX3 manual.

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

On Mar 18, 2019, at 11:33 AM, Tommy <tomm...@hvc.rr.com> wrote:

    Hi folks,

      I'm running FT8 with a KX2 powered by a power supply. The rig keeps folding back from 10-12 watts to 5 every time and it's barely even warm.  I'll set it to 12W for instance, it'll transmit fine at that level but when done cut back to 5w. I don't transmit often enough for it to get hot enough to protect itself. AGC is off. Any ideas? I appreciate any feedback.

73 de Tom - KB2SMS

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