[Elecraft] KX3 as an antenna analyser

[Matthew Zilmer]

Turning the KX3 to the purpose of antenna analyzer can be done easily using a host program on a PC or MAC.  It will only be able to give you SWR, nothing more than that.  See the KX3 Programmer's Manual for details.

If your station is so equipped, the LP-100A can be used as a vector antenna analyzer and can plot Smith charts, R+jX, etc.  This is also run from a PC or MAC, and the results are logged on the computer.  This approach would work with any transceiver supported by Larry's LP-Plot program.  See www.telepostinc.com for details.

It's possible that there is a host program for the W2 (Elecraft) wattmeter as well, but I'm not aware of it.  I'm pretty certain the W2 isn't a vector wattmeter like the LP-100 and LP-100A.  Please correct me if I'm wrong about this.

73,
Matt Zilmer, W6NIA
Semper Gumby



-----Original Message-----
From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Rijk van Harn
Sent: Tuesday, April 16, 2013 8:25 AM
To: Lewis Hunter
Cc: elecraft at mailman.qth.net
Subject: Re: [Elecraft] KX3 as an antenna analyser

Why switch to fm?

Just hit and hold the tune button for a cw carrier.
Disable the atu for vswr reading.
As we know swr reading requires 1w or more.  Out of band transmitting with this power setting violate you licence.

If my antenna is out of band I use a cheap swr analyser from vk.

For the posibility we have to wait for the answer from elecraft. But I think this feature wil not be implemented in the future.
For legal and technical reasons.

Rijk
PE1PTJ
 Op 16 apr. 2013 14:18 schreef "Lewis Hunter" <lewistec at gmail.com> het
volgende:

> When setting up a wire I often switch my KX3 to FM mode, hit the TX 
> button, turn the VFO while looking at the meter to find the lowest SWR 
> so I can adjust the wire. This is very handy indeed. However sometimes 
> the antenna is resonant outside the permitted transmit frequencies. So 
> I ask is there any possible way to make the KX3 function as an antenna 
> analyser so I can tune the antenna out of band. Or future plan to do 
> so through firmware updates?
>
> Lewis
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