[Elecraft] ASTRON RS-35 or SS-30 supply - OK for K2/100?

Phil Wheeler [email protected]
Fri Dec 20 10:12:09 2002


Wallace, Andy wrote:

>>-----Original Message-----
>>From: Phil Wheeler [mailto:[email protected]]
>>
>>In keeping with the portable nature of the K2/100, I would 
>>recommend the SS-30 for use with it.
>>    
>>
>
>Have you listened to the hash put out by hanging a wire out
>the back of the K2 and running it nearby?
>  
>

No.  And why would I?  I seldom need a 20 A power supply unless I am 
using an antenna.

>If you look at the ARRL review, the SS-30 had hash in 160
>but was clean on the other bands. They also made the point
>that the spectrum analysis was done with full loads on the 
>supply, and that the hash amplitude would probably be much
>less on receive. 
>

I read the review, but bought the supply earlier.  I've noticed no 
artifacts on receive on any band, with any antenna (including Field Day 
compromises).

>I don't think I would miss having meters, either -- with
>things operating normally I wouldn't even be looking at
>them. 
>  
>

The meters were not a factor in my purchase.  In fact the first time I 
really made use of them was while testing the KPA100 (to get a 
qualitative feel for how much current was being pulled on each band).

>Do you have to use anything other than a DVM to do calibration
>(current) of the KPA100? If I get the SS-30 without meters,
>I can always borrow a current clamp. But my guess is it just
>requires a DVM.
>  
>

I would never use the meter in the SS-30 for calibration.  The 
resolution is not adequate for that.  I have a couple of DVMs which will 
handle sufficient current for KPA100 Cal, and I used one of those.

73, Phil


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