To elevate it, use the force. 🙂
73
John Denison
KD5YOU
On 6/19/2024 8:24 PM, Andre Pollard via BVARC wrote:
Thanks all for the feedback. No chance to work on it today, even if
the weather had cooperated.
 I can get it to work fine on 20M and up, and since the trip starts
soon, I'm going to t
Thanks all for the feedback. No chance to work on it today, even if the
weather had cooperated.
I can get it to work fine on 20M and up, and since the trip starts soon,
I'm going to try it again when we get back. Going to try another testing
location to rule out interference that only seems to af
Hi Andre
I was going to mention the 33' counterpoises, but I see that you have
done that already. I've used a single counterpoise on 40 meters with
various coil antennas. One thing I didn't see in any of the emails is...
where are you setting up your antenna? Is there anything metallic nearby?
Well, the rain broke and I tried 3 33' radials. That helped, but the best I
can achieve is a 2.5 SWR and 72.3+j53.9 inductive on the Smith chart. Much
better, and tuneable with the G90, but I was hoping for a little better. I
tried adding the 10' radials but that didn't make a difference and I don'
I typically try to get a combination of lowest SWR at my chosen
center frequency with the widest SWR curve. Then check impedance on the
Smith chart at the center frequency. I'm using a nanoVNA, I don't have a
grid dip meter. Impedance in the best case i've gotten is around 200 ohms
on the inductive
I am not an Antenna Guru to say the least, but I have found one way to tune a coil from 20-40.  Haven’t tried this yet on 6-10-15-17. I have raised the base of the antenna by bolting it to a PVC, or other enertish tripod etc by 5-6 feet off the deck. Then I run 2 but even one works, quarter wavelen
Questions..
What do you mean "tuned" to 7.2?
Are you feeding it at the base of the coil? Have you tried moving the
feed point up the coil?
What frequency change do you see when moving your hand close?
Here is where just knowing the SWR is not what you need. What is the feed
impedance whe
Could you add a wire to the top of the whip, throw it in a tree or something,
and turn the whip in to an inverted L? Agree that the coil should work (maybe
add more radials?), but the L might be something different to try. (If you get
the same SWR result, that probably indicates not enough met
I use a 17ft whip for bands 6m - 20m meters. I can use 12 8ft radials or I
can use a 4x8 faraday cloth.  Either of these give me a 1.2 or lower SWR.
When I add a shorty 40 coil for either 30m or 40 meter, I need to add three
33ft radial to either the 12 8ft radials or the faraday cloth
I normally use a  5’x8’ faraday cloth which works fine on 20 and up. I made up 16 radials 10 feet long to try that and saw no difference. On Jun 18, 2024, at 4:24 PM, wb5itt wrote:What kind of a ground system do you have?  Chris WB5ITT Sent via my Samsung Galaxy S10e, an AT&T 5G Evolution capable
Rick Hiller are antenna Guru. The best!K5BOU-PhilippeBoucaumontHouston|Texas|USA|https://mccrarymeadowsweather.com/On Jun 18, 2024, at 4:24 PM, wb5itt via BVARC wrote:What kind of a ground system do you have?  Chris WB5ITT Sent via my Samsung Galaxy S10e, an AT&T 5G Evolution capable smartpho
What kind of a ground system do you have?  Chris WB5ITT Sent via my Samsung
Galaxy S10e, an AT&T 5G Evolution capable smartphone..so there! 😂
Original message From: Andre Pollard via BVARC
Date: 6/18/24 4:19 PM (GMT-06:00) To: BRAZOS VALLEY AMATEUR
RADIO CLUB Cc: Andre Polla
50 feet. At the treetop level. :)
> On May 1, 2016, at 2:49 PM, kg5ekl--- via BVARC wrote:
>
> How high is the tip of the rope from the ground?
>
> Sent from my T-Mobile 4G LTE device
>
> -- Original message--
> From: Skip Milton via BVARC
> Date: Sun, May 1, 2016 2:00 PM
> To: BRAZOS
How high is the tip of the rope from the ground?
Sent from my T-Mobile 4G LTE device
-- Original message--From: Skip Milton via BVARCDate: Sun, May 1, 2016
2:00 PMTo: BRAZOS VALLEY AMATEUR RADIO CLUB;Cc: Skip Milton;Subject:Re: [BVARC]
Antenna Help - the saga continues. Photos attached
Ye
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