My non-random length high-Z0 feedline is better, Reg, i.e., NO tuner
losses.
--
73, Cecil http://www.qsl.net/w5dxp

===========================

Cec, I'm very sorry to say your variable length high-Zo line never reduces
SWR down to 1-to-1 as perceived by the transmitter. It's like having a
tuner with only one knob on it.


Of course, your particular PA may have a tuned tank or pi-match in which
case you will have reduced the so-called SWR meter to nonsense for which you
deserve congratulations.


But if the long, thin, twin-wire feedline in your ingenious Z-matcher has a
higher resistance than the shorter, fat, single wire wound around the tuner
coil it replaces then you still have some explaining to do.


On the other hand, considering the economic pro's and con's, and the
poverty-stricken state of radio amateurs world wide, you undoubtably have a
winner. ;o)
---
Your's, Reg, G4FGQ

Cecil Moore wrote in message

Cecil, I have experience on the bands on 20 thru 10, but less
than a couple of dozen chats on the other bands in as many years.
Yesterday I scanned 80 and heard a spanish station but the East coast
were piling on him. The point I am mentioning it is that my antenna is
also horisontal polarised on the top of the tower. So I went to
top band and scanned it for DX but heard NONE even tho the band was
busy.
I decided to key up and had a few contacts at around 1000 miles
and with less with 30 watts and got very good reports.

Is this about normal for your G5RV which is also horizontally
polarised? I have never had a G5RV or a verticle for that matter
The noise level was around S8 to S9 and this just represented
the conditions for just last night. Transmission line is 7/8 coax
Antenna SWR 1:1 @ 65 feet
Regards
Art





...
Willy wrote:
I just started on hf bands and i usiing now a FD4 from Fritzel and I hear
all goods things about the G5RV.
Is that so, works it's also great on 10 and 15m?

Nope, it's not very good on 10m and 15m. It is especially bad on 30m.
It works well on 80m, 40m, and 20m with a tuner. EZNEC says it also
works well on 12m. A G5RV is not an all-HF-band antenna but I have
an all-HF-band antenna on my web page.

You know I've been watching the posts in this group for over a year now and
no matter what anyone says you guys always have a negative to say about
somebody elses antenna. So may you have a Happy Christmas.

I have attached the writeup from "ol' G5RV himself that was posted on
several websites.

Here is the original article and I still believe that the antenna I
described is very close if not in fact the same construction.

http://www.qsl.net/aa3px/g5rv.htm

Lloyd KD4HTW


"Reg Edwards" wrote in message
...

My non-random length high-Z0 feedline is better, Reg, i.e., NO tuner
losses.
--
73, Cecil http://www.qsl.net/w5dxp

===========================

Cec, I'm very sorry to say your variable length high-Zo line never reduces
SWR down to 1-to-1 as perceived by the transmitter. It's like having a
tuner with only one knob on it.


Of course, your particular PA may have a tuned tank or pi-match in which
case you will have reduced the so-called SWR meter to nonsense for which
you
deserve congratulations.


But if the long, thin, twin-wire feedline in your ingenious Z-matcher has
a
higher resistance than the shorter, fat, single wire wound around the
tuner
coil it replaces then you still have some explaining to do.


On the other hand, considering the economic pro's and con's, and the
poverty-stricken state of radio amateurs world wide, you undoubtably have
a
winner. ;o)
---
Your's, Reg, G4FGQ

Reg Edwards wrote:
Cec, I'm very sorry to say your variable length high-Zo line never reduces
SWR down to 1-to-1 as perceived by the transmitter. It's like having a
tuner with only one knob on it.

50 ohm SWR's on all HF bands are less than 1.6:1. The SWR on the ladder-
line is always between 7.5:1 and 19:1 so only one "knob" is needed.
--
73, Cecil http://www.qsl.net/w5dxp



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Art Unwin KB9MZ wrote:
Is this about normal for your G5RV which is also horizontally
polarised?

Art, I had a G5RV in AZ a few years ago. I had expected an all-HF-
band antenna but that's not what I got. So I studied it to find out
what was wrong. It was designed before the WARC bands and works well
on 80m, 40m, and 20m. At the height of the sunspot cycle, you can
work the world on 10m with a coat hanger and ten watts so the losses
on 10m may not be important. But EZNEC says the SWR on 10m is about
50-60:1.

I don't use a G5RV any more but I remember most of the data I
collected. Why it works well on 80m and 40m is illustrated on
my web page.
--
73, Cecil http://www.qsl.net/w5dxp



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Lloyd Mitchell wrote:
You know I've been watching the posts in this group for over a year now and
no matter what anyone says you guys always have a negative to say about
somebody elses antenna.

That proves that no antenna is perfect for everyone.

I have attached the writeup from "ol' G5RV himself that was posted on
several websites.

Here is the original article and I still believe that the antenna I
described is very close if not in fact the same construction.

http://www.qsl.net/aa3px/g5rv.htm

What he left out is the SWR on the coax which is a killer on 30m,
17m, and 10m according to EZNEC.
--
73, Cecil http://www.qsl.net/w5dxp



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Oddly enough, the full sized one I have, in addition to OK performance
on 80/75, 40 and 20 works better than anything else I've tried on 17.
It really does do poorly on 30,15,12 and 10 though. Go figure...

Jim Leder wrote:
Oddly enough, the full sized one I have, in addition to OK performance
on 80/75, 40 and 20 works better than anything else I've tried on 17.
It really does do poorly on 30,15,12 and 10 though. Go figure...

At the higher frequencies, small variations in design and environment
can cause large shifts in characteristics due to the shorter wavelengths
involved. For instance, if the dipole is a little longer than 102 ft,
the series-section transformer is a little longer than 30 ft with a
relatively low VF, the G5RV antenna system's resonant point will shift
a lot on the higher bands. Also, installing the G5RV in an inverted-V
configuration can change things considerably on the higher bands. I'm
glad it works well for you on 17m. That's a neat band.
--
73, Cecil http://www.qsl.net/w5dxp



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Cecil Moore wrote:

Reg Edwards wrote:

For all-round, multi-directional, multi-elevation, multi-band
working, DX
and local, there is nothing better than a random length dipole with a
random-length high-Zo feedline, ...


My non-random length high-Z0 feedline is better, Reg, i.e., NO tuner
losses.

My XYL took a look at that setup, and informed me that that was the
lowest on her list of "allowables" ! 8^)

- Mike KB3EIA -

Lloyd Mitchell wrote:

You know I've been watching the posts in this group for over a year now and
no matter what anyone says you guys always have a negative to say about
somebody elses antenna. So may you have a Happy Christmas.

Prolly because there *is* something negative to be said about any
antenna out there!

And the G5RV is an adequate antenna for what it was designed for. Some
zealot's started turning in to something that it was not.

- Mike KB3EIA -