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

[Brett Howard]

Yea its 21 bucks but I really like mine!  I've got a Bird dummy that is
flat to about 3Ghz and can handle 100W 100% duty cycle but I find the
Ridge Equipment one to be more than enough most of the time...

~Brett (KC7OTG)

On Wed, 2010-02-24 at 12:29 -0500, n9qr at aol.com wrote:
> ..... 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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