KX3 as an antenna analyser
Locked
 
|
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 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
|
|
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" <[hidden email]> 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 > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
|
|
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: [hidden email] [mailto:[hidden email]] On Behalf Of Rijk van Harn Sent: Tuesday, April 16, 2013 8:25 AM To: Lewis Hunter Cc: [hidden email] 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" <[hidden email]> 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 > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[hidden email] > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html > Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
|
|
In reply to this post by Lewis Hunter
Please, please , do not transmit FM on any shortwave band except on 10m
high in the band. Not for tuning, not for testing, not to make contacts. Just don't. What a waste of resources. -- Ohne CW ist es nur CB.. 73, Martin DM4iM ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
«
Return to Elecraft
|
1 view|%1 views
| Free forum by Nabble | Edit this page |