Butternut HF6V on 12 and 17 meters

[Larry Bratcher]

Has anyone out there added the 12 and 17 meter coils to their Butternut HF6V
vertical? I added the coils this weekend and got the SWR on 12 and 17 to
below 2 but the 10 meter SWR when out of sight! It was 6 plus and I could
not tune it in. I removed the coils and the SWR on 10 dropped back down to
1.2. Anybody had similuar experiences and if so, how did you resolve the
problem?

Thanks

Larry

[Tom]

No experience with the 12 and 17 coils; but, have two HF6V's one with a 160m
coil. I would suggest trying just 'one' of the coils and see if you can
get it and 10m both to tune properly.

Also, remember that the top section of the antenna affects the tuning of 10m
and can be lengthened and shortened too.

Finally, I've learned to start with 10m tuning and work my way down through
the other bands. One of my antenna's had the 80m and 40m coils reversed on
it when I bought it used; and, that hummer works just fine to my surprise.

So experiment, try it with one and then the other to see if you can isolate
the problem.

Good luck,

Tom

[Cliff Holloway]

I added the 12 & 17m coils, 10 m did not change, while 12 m was about 1.4 -
1 17m was no better than 2.5 - 1. I have talked to many other hams that
have done this mod and they had the same results. My HF9V is ground mounted,
is yours??
Cliff N0HC
"Larry Bratcher" <LABra...@worldnet.att.net> wrote in message
news:1gMG5.8078$9T4.4...@bgtnsc04-news.ops.worldnet.att.net...

[Larry Bratcher]

I tried tuning the 10 meter section...at least I movd it a few inches and it
didn't seem to make a difference. I think I will try just one coil and see
what happens. Thanks for the suggestion. I have Emailed Beacher, but
haven't heard back from them as of yet.

Larry

Tom <tom...@overland.net> wrote in message
news:ZXPG5.425$WLp4.2...@news.randori.com...

[Larry Bratcher]

Yes, it is ground mounted with several radials installed. Question, the
suggested setting for the very top that tunes the 10 meter section is 25'.
Is this about what yours is set at?
Thanks

Larry
Cliff Holloway <choll...@home.com> wrote in message
news:oIRG5.88257$g6.39...@news2.rdc2.tx.home.com...

[Richard Miller]

Gentlemen,

I just replaced a 15 year old HF6V with a new HF9V. My experience
was that 15 meters had to be well tuned before the 12 and 17 meter bands
would come in. Also, I started with the 17 meter coil, and made small
adjustments. I had to stretch the coils out quite a bit more than they
recommended. Even then, I found the results to be a bit higher than
expected.

I had been measuring the vswr at the end of the 20 meter matching
section of coax. I found that once I measured the vswr at the shack end
of the 50 ohm coax, all the resonances were as predicted. This may
be part of the difficulty.

I have plotted the vswr response across the HF spectrum, and I plan to
post it on my web site in the next few weeks.

Good luck,

Rick
K1RDM

"Larry Bratcher" <LABra...@worldnet.att.net> wrote in message

news:_zXG5.508$H_.2...@bgtnsc06-news.ops.worldnet.att.net...

> Yes, it is ground mounted with several radials installed. Question, the
> suggested setting for the very top that tunes the 10 meter section is 25'.
> Is this about what yours is set at?
> Thanks
>
> Larry
> Cliff Holloway <choll...@home.com> wrote in message
> news:oIRG5.88257$g6.39...@news2.rdc2.tx.home.com...

[Cliff Holloway]

Larry, well now I know. I measured it at 26'3", but mine is set to resonate
at 27.8 MHz . The reason is that in my low profile mode I remove the top
half of the antenna and store against my house (fits just right in the
gutter well). At 3/4 wave on 10m the HF9V is very broad banded, even set
here the swr is less than 2 to 1 up to 29 MHz. My bandwidth on 80m is only
20khz so I have a very good ground (water 12" down and lots of minerals 20 -
30 ft. radials).
Hope maybe you can find something here to help you.
73 Cliff N0HC

"Larry Bratcher" <LABra...@worldnet.att.net> wrote in message

news:_zXG5.508$H_.2...@bgtnsc06-news.ops.worldnet.att.net...
> Yes, it is ground mounted with several radials installed. Question, the
> suggested setting for the very top that tunes the 10 meter section is 25'.
> Is this about what yours is set at?
> Thanks
>
> Larry
> Cliff Holloway <choll...@home.com> wrote in message
> news:oIRG5.88257$g6.39...@news2.rdc2.tx.home.com...

[k5...@austin.rr.com]

On Monday, October 16, 2000 2:00:00 AM UTC-5, Larry Bratcher wrote:
> Has anyone out there added the 12 and 17 meter coils to their Butternut HF6V
> vertical? I added the coils this weekend and got the SWR on 12 and 17 to
> below 2 but the 10 meter SWR when out of sight! It was 6 plus and I could
> not tune it in. I removed the coils and the SWR on 10 dropped back down to
> 1.2. Anybody had similuar experiences and if so, how did you resolve the
> problem?
>
> Thanks
>
> Larry

Hi Larry,

Where did you put the 17 Meter coil? Was it butted up to the top 30 meter coil clamp? Then you adjusted the top of the coil to the lowest SWR?

I don't remember where I put the 12 meter coil but neither of them affected the 10 meter coil band setting of the stinger.

Good luck and hope you get it to work.

Tnx,
Bill, K5LN

[nm...@wt.net]

If he hasn't got it straight after almost 14 years, there is probably
little hope. :|

[llga...@gmail.com]

I was fighting the 10 Meter tuning to no avail.
Finally zeroed in on the 12 Meter Coil.
Was going to remove it but instead totally compressed the 12 Meter Coil.
Problem solved.

As I found out in the HF9V manual:

NOTE: you can measure then adjust 15 and 10 meters at the same time since they don’t interact like other band adjustments. This may help save some time and effort when tuning.
The 12M coil MUST be compressed as much as possible upon initial tuning. If not, it is highly probable that 12M will actually be tuned into 10M throwing the ability to tune 10M at all.

73 guys, I can now get back on 10 Meters

Larry KB0R

[Allodoxaphobia]

heh....
A thread started 20 years ago -- replied to 14 years later -- and now
a follow up after another 6 years.

google groopers -- such a class act!