KPA100 power levels

classic Classic list List threaded Threaded
2 messages Options
Reply | Threaded
Open this post in threaded view
|

KPA100 power levels

Evert Bakker (PA2KW)
Hi all,

 

After one year I prepared the K2 for the upcoming PACC contest. I removed
the KPA100 last year because I wanted to use the K2 as an exiter for my
transverter setup. I removed the K60XV module and put the KPA100 in place. I
found out the the power output is around 70 Watts on all bands (measured
with the power meter of Drake MN2700 and WV4) into a good dummyload. I
recall that I used to have about 100 Watts on all bands. I still use the
same 23 Amp switching power supply and Spinner dummyload.

Is there anyone out there that could give me a suggestion?

Could it be the 4.7 pF capacitor on J15 (pins 1 and 3)

 

73's, Evert PA2KW

 

K2 SN4836

_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com

Reply | Threaded
Open this post in threaded view
|

RE: KPA100 power levels

Don Wilhelm-3
Evert,

I have no idea why you removed the K60XV when you remounted the KPA100, they
live nicely together (unless your K60XV used the BNC connectors in the top
cover.

The 4.7 pf capacitor is not your problem - that capacitor is only used on 40
meters.

To provide more help, we need to know what the power output from the basic
K2 is.  Remove the KPA100 and see what power you can develop on each band.
If the power output from the base K2 is low, you can look into that, but if
the base K2 power is up to par, the KPA100 need the attention.

73,
Don W3FPR

> -----Original Message-----
>
> After one year I prepared the K2 for the upcoming PACC contest. I removed
> the KPA100 last year because I wanted to use the K2 as an exiter for my
> transverter setup. I removed the K60XV module and put the KPA100
> in place. I
> found out the the power output is around 70 Watts on all bands (measured
> with the power meter of Drake MN2700 and WV4) into a good dummyload. I
> recall that I used to have about 100 Watts on all bands. I still use the
> same 23 Amp switching power supply and Spinner dummyload.
>
> Is there anyone out there that could give me a suggestion?
>
> Could it be the 4.7 pF capacitor on J15 (pins 1 and 3)
>
>
--
No virus found in this outgoing message.
Checked by AVG Free Edition.
Version: 7.5.432 / Virus Database: 268.17.29/673 - Release Date: 2/6/2007
5:52 PM

_______________________________________________
Elecraft mailing list
Post to: [hidden email]
You must be a subscriber to post to the list.
Subscriber Info (Addr. Change, sub, unsub etc.):
 http://mailman.qth.net/mailman/listinfo/elecraft   

Help: http://mailman.qth.net/subscribers.htm
Elecraft web page: http://www.elecraft.com