[Elecraft] Need to select a dummy load for K3 TX calibration...(advice?)

[n9qr at aol.com]

 ..... nice load but it's about $9 to ship it so total will run about $21 ... still a good deal!

Thanks Brett!

 


 

 

-----Original Message-----
From: Brett Howard <brett at livecomputers.com>
To: Jeff Hall, W6EZY <w6ezy at arrl.net>
Cc: elecraft at mailman.qth.net
Sent: Wed, Feb 24, 2010 11:41 am
Subject: Re: [Elecraft] Need to select a dummy load for K3 TX calibration...(advice?)


If you're in a hurry you've already bought the MFJ from HRO.  If you
want to be a little more frugal you can get an adequate one here for 12
bucks!

I know it says its a 75watt load but it will do 100 for long enough to
get the job done and the K3 only calibrates at 50 any way...

https://www.ridgeequipment.com/store/dummyloads.html

~Brett

On Tue, 2010-02-23 at 10:13 -0800, Jeff Hall, W6EZY wrote:
> Hello all,
> 
> I need help picking out a proper dummy load to use for calibrating my new
> K3.  HRO is just up the road and they carry some of the less expensive MFJ
> dummy loads -- would these be sufficient? Not looking to spend a lot of
> money, but don't want to buy junk either.  What factors should I consider?
> I'm assuming oil-cooled dummy loads are more robust, while air-cooled loads
> are more compact, but you have to be more careful when operating or they can
> burn up more easily.  The K3 manual says this is just a 5W test and I need a
> load with low VSWR from 160 to 6.  What is considered "low" SWR? Anything
> under 1:5?
> 
> If I can get by with the MFJ-260 for just $40, that sounds reasonable to me.
> 
> 73 de Jeff, W6EZY
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