[Elecraft] KPA100 SWR bridge adjustment 160m & 80m

Geoffrey Mackenzie-Kennedy gm4esd at btinternet.com
Sat Dec 29 18:37:50 EST 2007


Hi Koert,

1) Do you have an external RF power meter?

2) If you do, does your K2/100 produce 100 watts minimum, CW mode, on all 
bands 160m - 10m when connected to a dummy load and the RF power output 
measured by an external meter?

3) All RF power measurements should use an external meter only.

4) If the K2/100 does not produce 100 watts CW on all bands, on which bands 
is the maximum output LESS than 100 watts CW?

5) How much DC current is being drawn by the PA (or the K2/100) on each band 
if you adjust the power output to 100 watts CW?  If you cannot get 100 watts 
on some bands, what is the maximum power output produced on each 'low output 
band' and how much DC current is drawn in each low output case.

These tests should provide some indication of what is causing your problem 
without having to heat up your iron.  If you wish we can continue off List.

73,
Geoff
GM4ESD


----- Original Message ----- 
From: "Koert Wilmink" <koert at wilmink.com>
To: <elecraft at mailman.qth.net>
Sent: Saturday, December 29, 2007 9:03 PM
Subject: [Elecraft] KPA100 SWR bridge adjustment 160m & 80m


> Dear all,
>
> Please find my emails to Elecraft support below. Is there maybe somebody 
> with additional tips?
>
> Thanks!!
>
> 73 Koert PA1KW



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