Re: Problem tunning at 40m

Hi David,
Thanls for answer.
I understand what you mean,
I'll work in this way and I'll come back.
Regards

Re: Problem tunning at 40m

开云体育

Pedro,

If you experience tuning only one band or frequency, this might be a problem of coax wavelength.? The coax feeding into the tuner might be a harmonic frequency which causes the radio signal to be too low or too high to tune.? Try adding a couple meters of coax, or changing to different coax to see if the problem goes away.?

?

Hope this helps,

David

W0IM

Problem tunning at 40m

#131
Edited

Dear all,
I have dete4cted one probolem i have working at 40m.
I have an LDG AT100ProII and IC7300. Always tuning with 10wats.
the tuner always tune at moment by the memories except at part of the band of 40m (part of ft4 and ft8). Some times it load the memory tunning settings and other ntimes start a new tunning cicle.
At the end always with the same LC configuration. If I set up the LDG manually by Cup/dwn and Lup/dwn it works ok as it will be.
The SWR is stable at this frequencies and it does not change and is not related with rain or cold/hot.
I have install ferrite cores to avoid rf returns but it still fault some times starting a new tune cicle with the same final LC setup....
PLs checked and changed if looked not so good and screws and connexions checked
Any idea??
At the other antenna connetion I have not notice this problem.and the only test to do now is to change ant1 by ant2 and work some days....

Some more info:
I setup the ldg for 7.074 and its ok. also for 7.047,5 and also ok. I can change from one to the other and some times it selects the LC setup at moment and other times i eard 2 clicks but never makes a complete tune cicle.
Select 7100 and pulse tune (it was setup before and working) and the ldg makes a complete tune cicle (If i pulse tune again it doesn't make a complete tune cicle) and after that if I go back to 7074 or 7047,5 it makes again a complete tune cicle fot both.
It did it two times... If it retunes at 7100 then tunes also at 7074 and 7047,5 (this are the test freq I used: 7074, 7047,5 and 7100)

Anybody any idea????
Or sugestion?
Or solution?
Or experience like this?

The only idea I have is to check then weldings and specially of relays, capacitors and inductors....

Re: Question on Auto Tune SWR Threshold

#130

Hi Mark
I have the at100proii and i thing both work at same way: The tuner tunes the antenna to an swr less than 1.7 but? ot always the minimum swr and you can manually adjust the swr to 1.1.
Some times you can not reach this value and it is necessary to made a new tuning cycle to find other adjust different than before and try to adjust manually

Question on Auto Tune SWR Threshold

#129

I have an AT200 Pro (not Pro II). I know the threshold setting determines the maximum SWR the tuner will detect before it begins a tuning cycle. ?Does it also set a "minimum" target SWR??

That is, If I set the auto tune threshold to, say 1.7, will the tuner tune until it gets to 1.7 and then be "done" or will always tune to the minimum SWR it can find?

Re: AT-200ProII or Z-11ProII? Shortest mobile Whip for 29 through 54 MHz??

#128

Ed;

Name is Joe, Call here is K4SAT.

I am planning on upgrading to general, I was big into Hamsats in past years and now planning a road trip and new vehicle in 2021 so I want to equip for 10 and 6 FM for cruising. Also I have some licensed part 90 itinerants I wish to cover in the 35 and 43 MHz range. I want auto tune because I don't want to be stopping every time a band opens up to switch out coils or whips. My XYL will be annoyed enough by the chatter.

I contacted LDG directly via e-mail and got sort of a curt answer, "maybe an SGC tuner would work for you". Did not expect that, thought I would be steered to the AT-200ProII and given guidance on shortest whip for 10-6M.? I have no need for HF at this time.

Joe

Show quoted text

On Fri, Nov 27, 2020 at 08:47 AM, Ed - ad7gr wrote:

To the original poster (rhyolite ? ... name and callsign would be nice) ... I just checked my manual and found this under specifications: ".1 to 125 watts SSB and CW peak power, 30 watts on PSK and digital modes, and 100 watts on 6 meters." and "1.8 to 54.0 MHz coverage."?? Nothing is said in the manual regarding FM operations but I would agree with Kirk.

The answer would best be from LDG Electronics.

73,
Ed - ad7gr
Rev.14:6-12
On 11/26/2020 10:27 PM, Kirk Kleinschmidt via groups.io wrote:

If I remember correctly, the Z11ProII isn't rated for 100 W continuous (FM), so that might seem to eliminate it at the outset.

Re: AT-200ProII or Z-11ProII? Shortest mobile Whip for 29 through 54 MHz??

#127

开云体育

Ed;

Name is Joe, Call here is K4SAT.

I am planning on upgrading to general, I was big into Hamsats in past years and now planning a road trip and new vehicle in 2021 so I want to equip for 10 and 6 FM for cruising. Also I have some licensed part 90 itinerants I wish to cover in the 35 and 43 MHz range. I want auto tune because I don't want to be stopping every time a band opens up to switch out coils or whips. My XYL will be annoyed enough by the chatter.

I contacted LDG directly via e-mail and got sort of a curt answer, "maybe an SGC tuner would work for you". Did not expect that, thought I would be steered to the AT-200ProII and given guidance on shortest whip for 10-6M.? I have no need for HF at this time.

Joe

On 11/27/2020 8:47 AM, Ed - ad7gr via groups.io wrote:

To the original poster (rhyolite ? ... name and callsign would be nice) ... I just checked my manual and found this under specifications: ".1 to 125 watts SSB and CW peak power, 30 watts on PSK and digital modes, and 100 watts on 6 meters." and "1.8 to 54.0 MHz coverage."?? Nothing is said in the manual regarding FM operations but I would agree with Kirk.

The answer would best be from LDG Electronics.

73,
Ed - ad7gr
Rev.14:6-12
On 11/26/2020 10:27 PM, Kirk Kleinschmidt via groups.io wrote:

If I remember correctly, the Z11ProII isn't rated for 100 W continuous (FM), so that might seem to eliminate it at the outset.

Virus-free.

-- 
Joe Leikhim


Leikhim and Associates

Communications Consultants

Oviedo, Florida

JLeikhim@...

407-982-0446

Re: AT-200ProII or Z-11ProII? Shortest mobile Whip for 29 through 54 MHz??

#126

开云体育

To the original poster (rhyolite ? ... name and callsign would be nice) ... I just checked my manual and found this under specifications: ".1 to 125 watts SSB and CW peak power, 30 watts on PSK and digital modes, and 100 watts on 6 meters." and "1.8 to 54.0 MHz coverage."?? Nothing is said in the manual regarding FM operations but I would agree with Kirk.

The answer would best be from LDG Electronics.

73,
Ed - ad7gr

Rev.14:6-12

On 11/26/2020 10:27 PM, Kirk Kleinschmidt via groups.io wrote:

Show quoted text

If I remember correctly, the Z11ProII isn't rated for 100 W continuous (FM), so that might seem to eliminate it at the outset.

Re: AT-200ProII or Z-11ProII? Shortest mobile Whip for 29 through 54 MHz??

#125

If I remember correctly, the Z11ProII isn't rated for 100 W continuous (FM), so that might seem to eliminate it at the outset.

Regards,

--Kirk, NT0Z

My book, "Stealth Amateur Radio," is now available from www.stealthamateur.com and on the Amazon Kindle (soon)

On Thursday, November 26, 2020, 10:42:14 PM CST, CHARLES B SHURTZ <ka9cbs@...> wrote:

I like my AT-200Pro II but have not used or read up on the Z-11Pro II . and really can’t give you much advice on mobile HF antennas. I mostly am on 160 meters after 10:30PM most nights except when static crashes are too loud or thunderstorms are too close since a 160 meter antenna is very long and must wind blowing across it will charge it enough to zip you pretty hard if you happen to touch the coax end or the antenna. I advise you to contact ARRL headquarters or get in touch with K9EID Robert “Bob” Heil either source should be able to advise you much better than I can. I am diabetic, disabled, and have cancer so due to all the medications I sometimes don’t remember like I used to.

God Bless 73’s,

Charles Bruce Shurtz, 3rd?, PM, 32nd?, A.A.O.N.M.S.

3943 E. Freeman Rd.

Scheller, IL 62883-2408

Phone (618) 279-3297

Cell (618) 237-2118

Emails:

cbs12@...

MasonicPM85@...

KA9CBS@...

Scheller@...

Amateur (Ham) Radio Callsign: KA9GXT (licensed 40 years)

Sent from for Windows 10

?

Show quoted text

From: RFI-EMI-GUY
Sent: Thursday, November 26, 2020 5:50 PM
To: [email protected]
Subject: [ldgelectronics] AT-200ProII or Z-11ProII? Shortest mobile Whip for 29 through 54 MHz??

?

I am considering purchase of ether AT-200ProII or Z-11ProII? for use in an SUV equipped with a Motorola Syntor X9000 radio. I desire to tune 29-54 MHz contiguously to include Ham part 97 and Itinerant business Part 90 frequencies? at 35.04 and 43.04 MHz.? The radio is 100W FM.

1. Which tuner is best suited?

2. I would like to use a (Preferably) roof mounted whip antenna with NMO coaxial mount. Given that I have no requirements for HF. What is the shortest recommended antenna?

?

Re: AT-200ProII or Z-11ProII? Shortest mobile Whip for 29 through 54 MHz??

CHARLES B SHURTZ

#124

开云体育

I like my AT-200Pro II but have not used or read up on the Z-11Pro II . and really can’t give you much advice on mobile HF antennas. I mostly am on 160 meters after 10:30PM most nights except when static crashes are too loud or thunderstorms are too close since a 160 meter antenna is very long and must wind blowing across it will charge it enough to zip you pretty hard if you happen to touch the coax end or the antenna. I advise you to contact ARRL headquarters or get in touch with K9EID Robert “Bob” Heil either source should be able to advise you much better than I can. I am diabetic, disabled, and have cancer so due to all the medications I sometimes don’t remember like I used to.

God Bless 73’s,

Charles Bruce Shurtz, 3rd?, PM, 32nd?, A.A.O.N.M.S.

3943 E. Freeman Rd.

Scheller, IL 62883-2408

Phone (618) 279-3297

Cell (618) 237-2118

Emails:

cbs12@...

MasonicPM85@...

KA9CBS@...

Scheller@...

Amateur (Ham) Radio Callsign: KA9GXT (licensed 40 years)

Sent from for Windows 10

?

Show quoted text

From: RFI-EMI-GUY
Sent: Thursday, November 26, 2020 5:50 PM
To: [email protected]
Subject: [ldgelectronics] AT-200ProII or Z-11ProII? Shortest mobile Whip for 29 through 54 MHz??

?

I am considering purchase of ether AT-200ProII or Z-11ProII? for use in an SUV equipped with a Motorola Syntor X9000 radio. I desire to tune 29-54 MHz contiguously to include Ham part 97 and Itinerant business Part 90 frequencies? at 35.04 and 43.04 MHz.? The radio is 100W FM.

1. Which tuner is best suited?

2. I would like to use a (Preferably) roof mounted whip antenna with NMO coaxial mount. Given that I have no requirements for HF. What is the shortest recommended antenna?

?

F5DD1816A2134250A9E7C8A3ACF59175.png

AT-200ProII or Z-11ProII? Shortest mobile Whip for 29 through 54 MHz??

#123

I am considering purchase of ether AT-200ProII or Z-11ProII  for use in an SUV equipped with a Motorola Syntor X9000 radio. I desire to tune 29-54 MHz contiguously to include Ham part 97 and Itinerant business Part 90 frequencies  at 35.04 and 43.04 MHz.  The radio is 100W FM.

1. Which tuner is best suited?
2. I would like to use a (Preferably) roof mounted whip antenna with NMO coaxial mount. Given that I have no requirements for HF. What is the shortest recommended antenna?

Re: AT-100 PRO II Mounting Bracket?

#122

Hi Kevin,
You can take a look at this f.i.

Regards

Pedro
ea3fnm
Barcelona

Re: AT-100 PRO II Mounting Bracket?

#121

I remote mounted my 857 body so I just used some large hose clamps to clamp my z11pro to the body of the 857.  You could do the same thing with the AT100 as it is about the same size as the 857 body.

Leonard K. Pennock
AD7AS

Those who walk bravely through life, unafraid of loss or failure,
find that they very rarely lose or fail.

Show quoted text

On 10/20/20 12:37 PM, Kevin van der Does wrote:
Does anybody know of mobile mounting bracket that would be compatible with this tuner?
Thanks.
Kevin
AD0IM

AT-100 PRO II Mounting Bracket?

Kevin van der Does

#120

Does anybody know of mobile mounting bracket that would be compatible with this tuner?

Thanks.

Kevin
AD0IM

Re: Available Service RE: LDG1000Pro

#119

I have an excellent impression of the technical service. Today I replaced the PIC with the new firmware and the problem was solved. Thank you Dwayn so much!

Re: LDG100ProII question about memory tunes

#118

Dear all,
I come back with this issue because I have found the replay I'm lookng for the LDG in other tuner,
The MFJ993 has this information in its manual page 16 table 1. Please see attached file 993.jpg
What is the the resolution at the LDG100ProII??
Regards,

993.JPG

Re: Z100+ tunes but AT200 Pro will not???

#117

Update: LDG reports that they "recalibrated the unit" and have sent it back to me. ?I should have it for the weekend.

Hopefully, my ATPro 200 will now tune on 80m and 6m, just like my Z100+ can!

Re: Z100+ tunes but AT200 Pro will not???

#116

More and more, I tend to think the AT200Pro will be found to have some issue. I connected my MFJ analyzer directly to the feed-point of the antenna ... As you can see, without any tuner, the SWR on 80 and on 6 is well within the tunable range. ?It certainly makes perfect sense that the Z100+ plus can find a tuning solution for 80 and 6 ... it remains a mystery, why the AT200Pro cannot.

Off it goes to LDG tomorrow, via USPS priority mail. :-0?

Re: Z100+ tunes but AT200 Pro will not???

#115

开云体育

FYI Everyone - I did the full reset on the AT200Pro of holding down the three buttons, while applying power through the DC 12V plus in the back ... It did reset!

No help. :-( I still get "all the SWR LEDs blinking" when I try and tune on either 80m or on 6m, whereas with the Z100+, it easily find a low (1.5:1 or better) solution on both 80m and 6m.

I will say the AT200Pro works fine on every band 40M through 10m ... It is possible, perhaps, that certain of the values of inductance or capacitance (certain relays?) are broken, resulting in the apparent lower tuning range of the AT200Pro compared to the Z100+ ... I did, after all, buy the AT200Pro used ...

Off to LDG it goes, let them check it out and either:

Verify it's working 100% to spec and confirm I have a mystery
Fix it. :-)

-- 
de K4ED in FM09
QRA: Mark Sunderlin, QTH: Winchester, VA
"Never forget XYL Z as a factor in antenna efficiency"

Re: Z100+ tunes but AT200 Pro will not???

#114

I just found this on the LDG FAQ page:

There is no way to reset all the memories at once. They are overwritten each time you perform a full tuning cycle on the frequency associated with the memory. So it’s the same as a full reset, then reprogrammed with each frequency position as you use the tuner.?

Answered one of my questions.

Mike KD9CK

On Friday, September 4, 2020, 12:31:59 PM CDT, John <jonie41@...> wrote:

I have the AT1000 ProII, it has been doing odd thing lately, to turn it off, I
have to hold the Power button down, relays cycle a few times, then the unit
powers off.
The thing still works FB though.

John
VE3KKQ

Show quoted text

> ---------- Original Message ----------
> From: "Mike Congleton via groups.io" <kd9ck=[email protected]>
> Date: September 4, 2020 at 12:22 PM
>
>
>? All Reset: Press and hold Func + Ant + Tune while applying DC power. This
> will reset the unitto factory defaults, and will erase all frequency memories.
> The AT-200/AT-100 Pro II do not have a reset like the older models.
> Holding those buttons and turning the tuner on with the power button on the
> front panel won't work - you need to use the 12v source to do it.
> Mike KD9CK
>
>
>? ? On Friday, September 4, 2020, 11:10:06 AM CDT, John <jonie41@...>
> wrote:
>
>? Please share how to reset the tuner, thanks.
>
> John
> VE3KKQ
>
> > ---------- Original Message ----------
> > From: "Mike Congleton via groups.io" <kd9ck=[email protected]>
> > Date: September 4, 2020 at 8:54 AM
> >
> >
> >? Oh yeah - it's a treat. I put something heavy on top of mine so it wouldn't
> > run away, then made sure my fingers weren't going to cramp up. After a
> > couple
> > tries I got it, and in my case it fixed the issue. LDG no longer supports
> > the
> > reset ability on Pro II tuners - I wonder why they decided that?
> > Mike KD9CK
> >? ? On Friday, September 4, 2020, 07:39:05 AM CDT, Guy G4DWV 4X1LT
> > <guy@...> wrote:?
> >?
> >? Hi Mike (KD9CK),
> > Have you ever tried to reset an LDG? I did a while back and I could have
> > done
> > with a third hand, hi hi.
> > 73 de Guy G4DWV 4X1LT?
> >
> >
> >
>
>
>
>
>
>
>