[Elecraft] KX3 Questions

Tue Nov 4 10:03:43 EST 2014

The 4 meter module is not usable in the USA.. the 2 meter gets you an all-mode 2 meter transverter. That plus an external amp gets you side band on 2 meters, cw and so on if you want more than 2 or 3 watts.

4 meters is in the middle of a VHF TV band here in the states, and the FCC has no plans to allow operations in that span, since there are active TV stations there.

 KK4QDZ - Now with Extra Class Priv's, and a tiny KX3 to enjoy them!
      From: David Ahrendts <davidahrendts at me.com>
 To: "Wolfgang, Larry, WR1B" <lwolfgang at arrl.org> 
Cc: "elecraft at mailman.qth.net" <elecraft at mailman.qth.net> 
 Sent: Friday, October 31, 2014 11:51 AM
 Subject: Re: [Elecraft] KX3 Questions

Larry, I assembled a KX3 and it’s companion KXPA100 amp 3 weeks ago, and it is an outstanding combo. I’m replacing a Kenwood TS-480HX (an outstanding device also) which I ran with an Ameritron ALS-600S 600-watt linear. With some balancing and shielding I will be able to run the KX3 + KXPA100 into the 600 watt linear. So, I have my super compact QRP radio that I can put in my back pack and sit on a lawn chair with a Buddy Pole on top of a mountain, or the high power base station on my desk at home with the mini-beam. Cake and eat it too. The KXP3 pan adapter for the KX3 arrives today — my weekend project.
I’ll suggest the roofing filter especially for CW. Did not get an antenna tuner for either the KX3 or KXPA100, but might reconsider that later, since I have an auto-tuner for the big linear. Had no interest in using the KX3 on 2M and actually for the cost, you could probably find a very nice 2M rig.
Assembly suggestion: they provide you with a lot of little teeny tiny screws. Get a cupcake pan or ice cube tray and separate all the parts and label them. Very difficult to tell a 5/32 screw from a 1/4. Tweezers help. And the customer support is extraordinary.

David Ahrendts, KC0XT, Los Angeles  

> On Oct 31, 2014, at 8:07 AM, Wolfgang, Larry, WR1B <lwolfgang at arrl.org> wrote:
> 
> I guess I am getting ready to put a KX3 order together. Suggestions about roofing filter choices and other configuration suggestions welcome.
> I have noticed that there is some information about a 2 m / 4 m transverter. I've trying to figure out what the 4 m band would be. I'm not aware that we have an allocation there (70 something MHz?) The information still seems a bit sketchy about that. Any ideas? Thanks.
> 
> 73,
> 
> Larry Wolfgang, WR1B
> 
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David Ahrendts  davidahrendts at me.com  

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