开云体育

ctrl + shift + ? for shortcuts
© 2025 Groups.io
  1. Ldgelectronics
  2. Messages
Expanded Topics Messages Polls
Date
Re: RT/RC600

 

开云体育

My RT-600 stopped as well.
It lasted 5 years outside in a "weatherproof" box.
I tried to fault find it but gave up.
However leaving it in the warm dry shack with the lid loosely fitted for 6 months it has come to life again.
I suspect the damp got into some of the components.
I did, however, drill small holes in some of the relays to squirt switch cleaner on the contacts.
Best of luck Tim.
Chris, G4ZCS


From:[email protected] on behalf of AA6DQ via groups.io
Sent:?Wednesday, March 26, 2025 6:42 PM
To:[email protected]
Subject:?[ldgelectronics] RT/RC600

My RT600 tuner has stopped working.?? The bias Tee is ok.? The red light on the tuner circuit board flashes when the power is turned on and then goes off.? When powered up, one of the relays used to pick up but it does not do that now.? Does anyone have a schematic for it and firmware for the 18F25 PIC processor?? How close is the RT100 schematic to the RT600?
?
Tim AA6DQ
?
RT/RC600

 

My RT600 tuner has stopped working.?? The bias Tee is ok.? The red light on the tuner circuit board flashes when the power is turned on and then goes off.? When powered up, one of the relays used to pick up but it does not do that now.? Does anyone have a schematic for it and firmware for the 18F25 PIC processor?? How close is the RT100 schematic to the RT600?
?
Tim AA6DQ
?
Re: The smoke got out....

 

Schematic is in the "files" section. 3200pf.
Mike N3PM
The smoke got out....

 

Well, it happens I guess? :-)

I've an extremely burnt capacitor in my AT-1000 ProII.

I've been looking around for a schematic, but can't seem to come up with anything.

I'd be grateful is anyone can help with a schematic or the values of the capacitors in positions C7A to C7E.??

Thanks folks!? 73 de W8RIH

Best Regards,

TFM
tfm@...
IC-104 Cable

Steven, W2MY
 

Hi All,
For the IC-104HG interface cable for the Z100A, what do the "Start Blue" and "Key Green" wires do?
Thanks,
Steve, W2MY
Re: SWR led mark very High but no real measure. AT1000Proii

 

开云体育

?
?
Thanks?

?I found my problem. Operator error. ???♂?

Allen

On Mar 22, 2025, at 9:56?PM, Scott M via groups.io <smbx2003@...> wrote:

?
On Sat, Mar 22, 2025 at 03:18 PM, <eb3am@...> wrote:
Jordi,
What version of F/W do you currently have that has the SWR LED problem?
?
And what version are they sending you?
?
Scott
KK7RFX?
Re: SWR led mark very High but no real measure. AT1000Proii

 

Hello, I had the firmware version 1.8 as standard, and Mark sent me version 1.7
Could the newer version have some kind of bug?
Re: Z-11Pro II updated manual?

 

What version did they send to you? Just wondering if my chip is the latest version.?


Thank you,
Dave, KJ7WUZ?

On Mon, Mar 17, 2025 at 10:07, Adam
<k1adw@...> wrote:
I appear to have had the same issue as Peter. ?Received a replacement chip from LDG’s excellent customer service and everything is working perfectly! ? It actually worked pretty well before but now matches the manual perfectly and memory tuning is much faster.
Re: SWR led mark very High but no real measure. AT1000Proii

 

On Sat, Mar 22, 2025 at 03:18 PM, <eb3am@...> wrote:
Jordi,
What version of F/W do you currently have that has the SWR LED problem?
?
And what version are they sending you?
?
Scott
KK7RFX?
Re: Serial Data issue on PIC METERTX METERRX

 

Thanks everyone I reached out to LDG. Sorry for wasting the bandwidth here but do appreciate the group and the answers.
?
73!
Re: Serial Data issue on PIC METERTX METERRX

 

Stop


On Sat, Mar 22, 2025, 6:34 PM W4JDY1953_G via <W4JDY1953=[email protected]> wrote:

Program seems old and uninstall able on windows as is.

?

W4JDY / EM79xr / ITU 8 / CQ 5

?

From: [email protected] <[email protected]> On Behalf Of Relu Jianu via
Sent: Saturday, 22 March, 2025 00:26
To: [email protected]
Subject: [ldgelectronics] Serial Data issue on PIC METERTX METERRX

?

Hello,

For years I have been using a software program called LDG Tuner Control, to interface my AT-1000ProII Autotuner () with my PC by using the meter jack at the back of the tuner, but I lost the capability recently either due to a software or hardware failure. At first I changed my USB to serial interface used to control the tuner. Then verified the computer sends the commands to the tuner using a serial sniffer, but noticed the tuner does not respond.

?

The tuner works just fine otherwise, it just does not give a power readout and the ability to remote control it.

?

?

Looking at the schematic, the METERTX and METERRX lines used for communication between the PC and the tuner, go to the PIC? directly (photo attached).

Is it possible that by chance, those pins got fried, without the rest of the chip being affected?

If so is it possible to burn a new PIC to test it out? My label says ver1.7? Have not seen any hex dump available in the file section.

Any help is appreciated. Thank you.

?

?

73, Relu NJ9R


Virus-free.

image001.png
image002.jpg
image003.jpg

Re: Serial Data issue on PIC METERTX METERRX

 

开云体育

Program seems old and uninstall able on windows as is.

?

W4JDY / EM79xr / ITU 8 / CQ 5

?

From: [email protected] <[email protected]> On Behalf Of Relu Jianu via groups.io
Sent: Saturday, 22 March, 2025 00:26
To: [email protected]
Subject: [ldgelectronics] Serial Data issue on PIC METERTX METERRX

?

Hello,

For years I have been using a software program called LDG Tuner Control, to interface my AT-1000ProII Autotuner () with my PC by using the meter jack at the back of the tuner, but I lost the capability recently either due to a software or hardware failure. At first I changed my USB to serial interface used to control the tuner. Then verified the computer sends the commands to the tuner using a serial sniffer, but noticed the tuner does not respond.

?

The tuner works just fine otherwise, it just does not give a power readout and the ability to remote control it.

?

?

Looking at the schematic, the METERTX and METERRX lines used for communication between the PC and the tuner, go to the PIC? directly (photo attached).

Is it possible that by chance, those pins got fried, without the rest of the chip being affected?

If so is it possible to burn a new PIC to test it out? My label says ver1.7? Have not seen any hex dump available in the file section.

Any help is appreciated. Thank you.

?

?

73, Relu NJ9R


Virus-free.
Re: SWR led mark very High but no real measure. AT1000Proii

 

Hi, I sent a message to LDG customer service and spoke with Mark.

After verifying the problem, they sent me a different firmware, and now the AT1000 pro2 is working correctly.
?
I'd like to thank the people at LDG for their diligence, and obviously, the next antenna tuner will undoubtedly be another LDG.
?
The pity is that those of us who live outside the US are now having problems with shipping due to excessive zeal, and even free shipping is being charged customs and duties.

EB3AM, Jordi
Re: Serial Data issue on PIC METERTX METERRX

 

LDG is very good about replacement parts. If parts are available you likely need just to ask LDG and they will send it out to you.

If you do get a replacement, I’d suggest a couple of 5V, unipolar TVS diodes to GND on the serial lines.

On Fri, Mar 21, 2025 at 23:29 Relu Jianu via <rjianu=[email protected]> wrote:

[Edited Message Follows]

Hello,
For years I have been using a software program called LDG Tuner Control, to interface my AT-1000ProII Autotuner () with my PC by using the meter jack at the back of the tuner, but I lost the capability recently either due to a software or hardware failure. At first I changed my USB to serial interface used to control the tuner. Then verified the computer sends the commands to the tuner using a serial sniffer, but noticed the tuner does not respond.
?
The tuner works just fine otherwise, it just does not give a power readout and the ability to remote control it.
?
?
Looking at the schematic, the METERTX and METERRX lines used for communication between the PC and the tuner, go to the PIC? directly (photo attached).
Is it possible that by chance, those pins got fried, without the rest of the chip being affected?
If so is it possible to burn a new PIC to test it out? My label says ver1.7? I have seen a hex dump available in the file section named at1000pro2520_112312.hex?? Does that work for my version? Any help is appreciated. Thank you.
?
?
73, Relu NJ9R
Serial Data issue on PIC METERTX METERRX

 
Edited

Hello,
For years I have been using a software program called LDG Tuner Control, to interface my AT-1000ProII Autotuner () with my PC by using the meter jack at the back of the tuner, but I lost the capability recently either due to a software or hardware failure. At first I changed my USB to serial interface used to control the tuner. Then verified the computer sends the commands to the tuner using a serial sniffer, but noticed the tuner does not respond.
?
The tuner works just fine otherwise, it just does not give a power readout and the ability to remote control it.
?
?
Looking at the schematic, the METERTX and METERRX lines used for communication between the PC and the tuner, go to the PIC? directly (photo attached).
Is it possible that by chance, those pins got fried, without the rest of the chip being affected?
If so is it possible to burn a new PIC to test it out? My label says ver1.7? I have seen a hex dump available in the file section named at1000pro2520_112312.hex?? Does that work for my version? Any help is appreciated. Thank you.
?
?
73, Relu NJ9R
Z100 Plus Bypass - Will it pass VHF/UHF?

 

Hello,
?
Using a Z100 Plus Radio and setting up a go box with the IC-705.? If I put the Z100 Plus in Bypass, will it pass the VHF/UHF Frequencies.? I was hoping to have a switch to go between the antennas if the Bypass feature allows the higher freqs to pass.
?
Thanks,
Burt
KB4P
Re: z-11 Pro firmware

 

开云体育

Never mind………

?

From: [email protected] <[email protected]> On Behalf Of Marco IZ0MFI via groups.io
Sent: Wednesday, March 19, 2025 2:37 AM
To: [email protected]
Subject: Re: [ldgelectronics] z-11 Pro firmware

?

[Edited Message Follows]

No of course, I don't use the ATU on the 70 cm band,

73' Marco IZ0MFI

?
Re: z-11 Pro firmware

 

开云体育

WOW – I did not know the Z-11-PRO was rated to work on 70cm.? I was almost certain it was from 1.800-MHz to 54.000-MHz only.? I never considered using it because my UHF antenna is a very low SWR from the start.



Vy73 - Mike - KD5KC.

El Paso, Texas - DM61rt.

SOTA W5T-Texas Association Manager.

?

?

?

?

?

From: [email protected] <[email protected]> On Behalf Of Marco IZ0MFI via groups.io
Sent: Wednesday, March 19, 2025 2:36 AM
To: [email protected]
Subject: Re: [ldgelectronics] z-11 Pro firmware

?

No of course, I use the ATU on the 70 cm, I use this tuner with the Yaesu FT-857 which also has the 70 cm and while transmitting on this range the ATU attempts tunings but of course it does not reveal any impedance matching and goes into ambiguity alarm; Unfortunately the last time I raised the power in UHF from 2-3W where I don't have this phenomenon to 20 W something I think got corrupted in the firmware as it stopped working perfectly and then I hope to reload the program on his PIC 16F876.

73' Marco IZ0MFI

?
Re: z-11 Pro firmware

 
Edited

No of course, I don't use the ATU on the 70 cm band, this tuner is connected to the Yaesu FT-857 which also has the 70 cm and while transmitting on this range the ATU attempts tunings but of course it does not reveal any impedance matching and goes into ambiguity alarm; Unfortunately the last time I raised the power in UHF from 2-3W where I don't have this phenomenon to 20 W something I think got corrupted in the firmware as it stopped working perfectly and then I hope to reload the program on his PIC 16F876.
73' Marco IZ0MFI
?
Re: z-11 Pro firmware

 

开云体育

Z-11:

1.8 to 54.0 MHz coverage

?

So how are you using this tuner on 70cm???

W4JDY / EM79xr / ITU 8 / CQ 5

?

?

?

From: [email protected] <[email protected]> On Behalf Of Marco IZ0MFI via groups.io
Sent: Sunday, March 16, 2025 12:49 PM
To: [email protected]
Subject: [ldgelectronics] z-11 Pro firmware

?

Hi all, I have a problem with this ATU that stopped working well during a 70 cm band qso with the Yaesu FT-757D which is known to have isolation problems between the UHF and HF ranges causing false starts of the tuning procedure. Particularly it stopped working the manual activation of the tuning using the Tune button however it worked normally going on transmission on the various freq ranges perhaps going first to AM to safeguard the relays. Today I tried downloading the firmware from the PIC ROM to try reloading it but I corrupted the file and nothing worked anymore. The firmware version is 15 but trying to reload the 13 available here among the obsolete files the program starts and the keys work but it does not tune automatically even going on transmission. Would you have any suggestions on this? T

hank you 73'

Marco IZ0MFI

?


Virus-free.
61 - 80 of 2513