[Antennas] Tuners

Jay AD5PE ad5pe at sbcglobal.net
Sat Feb 25 08:23:29 EST 2012


On the other hand, a G5RV is not an "all band" antenna, nor was it designed to be.  Most auto-tuners have a small-ish range they can match compared to a typical manual tuner.  It will likely find a match on parts of some bands (all of 20m, some of 80m) but not have the tuning range to get full power to others (12m & 17m) where the G5RV is further from resonance.

Mine works on 20 & 40 with the internal tuner in my ic756.  It works better on more bands with my MFJ949 or my LDG auto tuner.  It works everywhere with my Johnson matchbox.  That's just a matter of the range each tuner can match.  3:1, >5:1 (if capacitive) or "lots" in the case of rhe matchbox.

Jay
AD5PE

"C.Whitaker" <whitaker at pa.net> wrote:

>de WB2CPN
>Doug,
>You can use a tuner, automatic or manual, with almost
>anything.  If the source, (the radio), and the G5RV are the
>same characteristics,  the tuner is not going to help, and
>may cause a little loss.  In the real world no G5RV and no
>radio ever matched exactly.   Try it.
>73  Clete
>+++++++++++++++++++++++++++
>
>
>
>
>On 2/25/2012 1:02 AM, Doug DeWeese wrote:
>> I have a G5RV antenna&  everyone tells me you can not use an automatic antenne with it. Is this true?
>> If you can help, please e-mail me direct.
>> Tnx----Doug W7LNB    ddswl at centurytel.net
>> ______________________________________________________________
>> Antennas mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/antennas
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:Antennas at mailman.qth.net
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list: http://www.qsl.net/donate.html
>>
>>
>
>______________________________________________________________
>Antennas mailing list
>Home: http://mailman.qth.net/mailman/listinfo/antennas
>Help: http://mailman.qth.net/mmfaq.htm
>Post: mailto:Antennas at mailman.qth.net
>
>This list hosted by: http://www.qsl.net
>Please help support this email list: http://www.qsl.net/donate.html


More information about the Antennas mailing list