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Old October 17th 05, 07:55 PM
Cecil Moore
 
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Default Mythbusters: The G5RV on 12m

The myth: "Contrary to oft stated views, the Classic G5RV is not
an all band antenna, it: does not have acceptable feed performance
on any WARC bands;" Quoted from: http://www.vk1od.net/G5RV/

12m is a WARC band. The standard G5RV performs very well on 12m
band. Therefore, the above statement is a myth. (Hey, this silly
myth game is actually fun.) :-)
--
73, Cecil http://www.qsl.net/w5dxp
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Old October 19th 05, 10:10 PM
Thierry
 
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Default Mythbusters: The G5RV on 12m


"Cecil Moore" wrote in message
...
The myth: "Contrary to oft stated views, the Classic G5RV is not
an all band antenna, it: does not have acceptable feed performance
on any WARC bands;" Quoted from: http://www.vk1od.net/G5RV/

12m is a WARC band. The standard G5RV performs very well on 12m
band. Therefore, the above statement is a myth. (Hey, this silly
myth game is actually fun.) :-)


I confirm. I used both G5RV and OCF for Dxing with as good results as on the
other bands.

Thierry, ON4SKY
http://www.astrosurf.org/lombry/


--
73, Cecil http://www.qsl.net/w5dxp



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Old November 8th 05, 03:31 PM
W5GT
 
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Default Mythbusters: The G5RV on 12m

My G5RV works fine for me on 12M and 17M. Not a beam, but since it's only at
15', I'm happy. My IC756 does have a built in tuner, so I'm sure that helps.

W5GT

"Thierry" - wrote in message ...

"Cecil Moore" wrote in message
...
The myth: "Contrary to oft stated views, the Classic G5RV is not
an all band antenna, it: does not have acceptable feed performance
on any WARC bands;" Quoted from: http://www.vk1od.net/G5RV/

12m is a WARC band. The standard G5RV performs very well on 12m
band. Therefore, the above statement is a myth. (Hey, this silly
myth game is actually fun.) :-)


I confirm. I used both G5RV and OCF for Dxing with as good results as on

the
other bands.

Thierry, ON4SKY
http://www.astrosurf.org/lombry/


--
73, Cecil http://www.qsl.net/w5dxp





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Old November 8th 05, 04:04 PM
Cecil Moore
 
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Default Mythbusters: The G5RV on 12m

W5GT wrote:
My G5RV works fine for me on 12M and 17M. Not a beam, but since it's only at
15', I'm happy. My IC756 does have a built in tuner, so I'm sure that helps.


I had to increase the 450 ohm tuned section length on my G5RV
to 36 feet to obtain a low 50 ohm SWR (no tuner) on 17m.

EZNEC says the standard G5RV, with 1/2WL of 20m tuned section,
will present an impedance of about 38-j270 to the coax with
a resulting SWR of 40:1. That would be pretty lossy for 75 ft.
of RG8X, maybe even lossy enough to make your IC756 happy. :-)
--
73, Cecil http://www.qsl.net/w5dxp
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Old November 12th 05, 06:51 PM
Dave Oldridge
 
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Default Mythbusters: The G5RV on 12m

Cecil Moore wrote in news:TsS4f.2685$BZ5.384
@newssvr13.news.prodigy.com:

The myth: "Contrary to oft stated views, the Classic G5RV is not
an all band antenna, it: does not have acceptable feed performance
on any WARC bands;" Quoted from: http://www.vk1od.net/G5RV/

12m is a WARC band. The standard G5RV performs very well on 12m
band. Therefore, the above statement is a myth. (Hey, this silly
myth game is actually fun.) :-)


As I explained one night (on 75m from Halifax) to G5RV, his antenna is
essentially a dipole of non-resonant length with a mismatched feedline that
is used as a tuning section. My preferred method of using antennas of that
nature is to put a 300ohm line on the feedpoint and simply tune it in the
shack with a good, balanced tuner. The antenna will then perform well on
any frequency the tuner can match.

--
Dave Oldridge+
VA7CZ
ICQ 1800667
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