David,
If you have a dummy load and any sort of Wattmeter
which can measure in 10-20 W range, that should
tell you if you're getting NO power out.
And make sure you have the power out dialed in at
10 watts or so in the KX3, not set to zero.
73, Phil W7OX
On 6/8/16 8:42 AM, David Davis wrote:
Phil.
My testing started when I started to realize that I might not have any RF
output.
I started to believe this to be the situation when no matter what band or mode
I tried I was no longer able to make a contact of any type while working
portable.
When I returned home and connected my KX3 back up to my KXPA100 I noticed that
no matter what I set the KX3 output too the KXPA100 would effectively not put
out anything. The 25w led would barely flicker when I would key up the radio.
This caused me to believe the KX3 either had little to no RF output at all or
barely enough to be able to drive the KXPA100.
Thanks
David
KG6MTI
Sent from my iPhone
On Jun 8, 2016, at 03:31, Phil Wheeler <[email protected]> wrote:
David,
You'll likely get more help if you describe what is causing you to think you
might have an RF out issue with your KX3.
73, Phil W7OX
On 6/7/16 9:49 PM, David Davis wrote:
I might have an RF out issue with my KX3 but I am not sure how to test it.
I have an Elecraft DL1 and a DMM that I figure I can use to check the RF
voltages and verify the power out. However, I am not sure of the exact
process on how to do this. If I am keying the mic on SSB do I need to
speak into the mic to be able to measure the voltages or just key the
mic with silence? I would assume I need to be speaking into the mic.
The reason I ask this is because if I just key the mic with silence and
the radio set for 10W with a input power supply of 13.5V DC I measure
4.7mv DC at the TP1 on the DL1 unit.
If I speak into the mic I see voltages from 11 - 18V DC from the TP1 on
the DL1 unit. It seems to me that I need to be speaking into the mic. I
figure if I was checking the RF out in CW mode I would need to key the
keyer in some fashion.
I know this seems like an elementary level question but I would really
like to verify the RF power out.
Any information is greatly appreciated in advance.
Thanks!
David
KG6MTI
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