On 9/18/2011 10:57 AM, Don Wilhelm wrote:
> Being one not to trust any instrument until it has proven its worth (and
> calibration), I would not trust either until calibrated.
Calibration sticker on it or not, in the final analysis, the only place
a meter can be known to be accurate [unless not
Jim,
Being one not to trust any instrument until it has proven its worth (and
calibration), I would not trust either until calibrated.
OK, that brings up the question of how to do a meaningful calibration.
I connect to a known good (precision) 50 ohm dummy load, and read the RF
voltage at the d
On Sun, Sep 18, 2011 at 10:25 AM, wrote:
> ... it happens only on 20 meters into a dummy load...
=
Maybe you can put a scope across the dummy load and calibrate your power
output that way. That has worked for me.
Tony KT0NY
--
http://www.isb.edu/faculty/facultydir.aspx?ddlFacult
K3 goes into
oscillation evident on the K3 watt meter. Lower than 80 watts everything is OK.
The TX gain calibration is good.
>
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> Thanks,
>
> Jim K2ZF
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> -Original Message-
> From: Grant Youngman
> To: elecraft
> Sent: Sun, Sep 18, 20
oscillation evident on the K3 watt meter. Lower than 80 watts everything is
> OK. The TX gain calibration is good.
>
>
> Thanks,
>
> Jim K2ZF
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>
> -Original Message-
> From: Grant Youngman
> To: elecraft
> Sent: Sun, Sep 18, 2011 6
watts everything is OK.
The TX gain calibration is good.
Thanks,
Jim K2ZF
-Original Message-
From: Grant Youngman
To: elecraft
Sent: Sun, Sep 18, 2011 6:20 am
Subject: Re: [Elecraft] KPA-500 watt meter vs. Palstar
If you've run the TX gain calibration, and that worked pr
If you've run the TX gain calibration, and that worked properly, it sounds more
like you have an actual load problem. Which would cause high current.
Is the high current warning happening both with a known good 50 ohm load
connected to the K3 and with the antenna?
Sent from my iPhone
On Sep
need to know why the high current warning
at 80 watts on the K3? Is it the watt meter I am using to calibrate the K3?
Thanks,
Jim Douglas K2ZF
-Original Message-
From: Ray Sills
To: k2zf50
Sent: Sun, Sep 18, 2011 5:22 am
Subject: Re: [Elecraft] KPA-500 watt meter vs. Palstar
HI
Hi,
My KPA-500 watt meter and my Palstar watt meter read about the same at the
higher power readings. But at the 100 watt and lower ranges there is a
significant difference. My question is which is the more correct reading at the
lower ranges, the Elecraft or Palstar. If I want to calibrate
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