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AT-1000 Pro II Split Tuner and Control Board?


 

Has there been any thought or discussion of remote locating the control board away from the actual tuner board?
There is a 16 conductor ribbon cable of a few inches long that connects the control board to the tuner main board.

16 conductors of external antenna to strip RF away from, but other than that, would this not lend itself well to trunk mounted tuner and dash mounted control and monitoring?

Also thoughts of a weather proof enclosure, a Balun, and balanced dipole feed point tuner with control in shack?

Or are these just the ramblings of a person with not enough to do?

Thoughts?


 

On the z100plus, after I found the schematic, the tune button is a single key closure to ground the function is also on the radio interface jack, all thats needed to wire/modify are the indicator leds.

I'm placing the tuner in an attic where the feedline comes in, I want no radiation of reception in coax running inside the house.

I am not familliar with the AT-1000 pro...yet.
dickc

On Monday, December 5, 2022 at 12:40:49 PM EST, Brian <haberl@...> wrote:


Has there been any thought or discussion of remote locating the control board away from the actual tuner board?
There is a 16 conductor ribbon cable of a few inches long that connects the control board to the tuner main board.

16 conductors of external antenna to strip RF away from, but other than that, would this not lend itself well to trunk mounted tuner and dash mounted control and monitoring?

Also thoughts of a weather proof enclosure, a Balun, and balanced dipole feed point tuner with control in shack?

Or are these just the ramblings of a person with not enough to do?

Thoughts?


 

It's possible, and we've heard from others that were looking for the same info. That at least says you are not rambling. ; ) Since there are TTL lines on the ribbon cable, one would probably need to shield the cable from stray RF somehow.

I'd guess #26 size is common in ribbon wire, so that is about 0.08 volt drop per 10 feet.

Good luck with your project,

Dwayne Kincaid
LDG


 

I hope to find time to experiment with this in the near future, and will report results, success and fails.

Random length, very long balanced dipole, balun, tuner.
Tuner and dipole feed point same or as close as possible.
Then 50 Ohm coax to shack about 50 feet away.

Dipole antenna is in service, about 125 feet each leg. "V" config, not inverted V.
Want to do impedance transformation at feed point. (apex of roof)
Want to keep 50 ohm feed line as a 50 ohm feed line.

That is the vision, will post results as known.


 

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You will be successful!? I¡¯d like to see how you split the tuner!?

I do very much like you are thinking about, only at the 100-watt level.? I run battery/solar, using 2 x 100Ah batteries and 400-watts of solar.? Depending on the configuration, I¡¯ll run a 43-ft vertical, an 86-ft end-fed wire or a 135-ft end fed wire as an Inverted-L with some number of radials.? The tuner is -=ALWAYS=- out at the end of the coax where it actually helps, not at (or inside) the radio where it only fools the transmitter.

This photo was taken the week before Thanksgiving. ?If you look at the tree behind the JEEP you will see a 43-ft Fiberglass Vertical sticking up in the tree.? When I can push the antenna up through the branches it usually needs no guying.? But is makes it more difficult to deploy the Inverted-L.? When the 86-ft 0r 135-ft Inverted-L can be deployed, I am highly successful on 160m ¨C 10m using the LDG RT-100 tuner.? When the 43-ft Vertical is deployed, the RT-100 only gets me 80m ¨C 10m.? If I want 160m I need to use the SGC-237 tuner as it has more tuning range.

Both tuners in all of the antenna configurations reach a good SWR on 6m.? But I¡¯ve not been able to get contacts on 6m mostly because we go so remote that the nearest station in many miles away.? This photo was taken in the Texas Big Bend region.? The nearest town was Study Butte TX, about 50 miles away.? From this photo, about 80-ft to the left was the Rio Grande River, and the Mexican Border.? We were that far out.? Over 500 HF contacts were logged in a week, mostly on 40m, but including Canary Islands, South Africa, and 10 other countries (all on 40m).? If you build it well, I think you¡¯ll be satisfied.

Oh ¨C 2m/70cm vertical on the trailer, capabilities are 160m thru 70cm all-modes.

?

Vy73? ¨C? Mike? ¨C? KD5KC ¨C WRFF851 ¨C? El Paso ¨C Texas? ¨C? DM61.?

?

The canyons are calling, colorful and deep.? But I have promises to keep.

And miles to go still in my Jeep...?? And miles to go still in my Jeep...

?

?

ADVENTURE:? The respectful pursuit of trouble.??

An EXIT is really an ENTRANCE to someplace new.?

It isn¡¯t an ADVENTURE until something goes wrong!

?

?

?

?

From: [email protected] <[email protected]> On Behalf Of Brian
Sent: Monday, December 12, 2022 9:22 AM
To: [email protected]
Subject: Re: [ldgelectronics] AT-1000 Pro II Split Tuner and Control Board?

?

I hope to find time to experiment with this in the near future, and will report results, success and fails.

Random length, very long balanced dipole, balun, tuner.
Tuner and dipole feed point same or as close as possible.
Then 50 Ohm coax to shack about 50 feet away.

Dipole antenna is in service, about 125 feet each leg. "V" config, not inverted V.
Want to do impedance transformation at feed point. (apex of roof)
Want to keep 50 ohm feed line as a 50 ohm feed line.

That is the vision, will post results as known.