Re: RT600 Calibration Procedure
#z-11
it is an original unit and with the board being worked on the bench, some of the controls on the PCBA might have been altered (unknown). Hence, if there is a procedure I would like to use it to calibrate and verify the correct functionality. It is being proactive since the tuner is opened and on the bench, that is the time to do it.?
If someone has the procedure, please let me know here or via direct messaging.
Thank you,
Gene
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Re: RT600 Calibration Procedure
#z-11
I doubt that changing a relay would require recalibration.
At worst the unit has to have the memory cleared so that the attempts to tune with the correction switched in by the relay would be incorrect.?
The software would assume the value of the correction in it's basic programming.?
Even without clearing the memory at the next retune the solution would be stored for that frequency.
JD
KE4MD
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Re: RT600 Calibration Procedure
#z-11
I don’t have an answer for you, but just another question.? Changing a RELAY requires a RECALIBRATION on the RT-600??
? Vy73 - Mike - KD5KC. El Paso, Texas - DM61rt. SOTA W5T-Texas Association Manager. ? ? ?
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From: [email protected] < [email protected]> On Behalf Of Gene, K5PA Sent: Saturday, March 4, 2023 4:03 AM To: [email protected]Subject: [ldgelectronics] RT600 Calibration Procedure #z-11 ? I have the RT600 remote tuner which I just replaced a burnt relay and would like to perform a calibration procedure prior to putting it back into service.
Can anyone provide me the calibration procedure for the RT600 or the RT100. I have seen a generic procedure in the files section but I prefer the one that addresses all adjustments on the circuit board assembly.
Thank you, K5PA, Gene
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RT600 Calibration Procedure
#z-11
I have the RT600 remote tuner which I just replaced a burnt relay and would like to perform a calibration procedure prior to putting it back into service.
Can anyone provide me the calibration procedure for the RT600 or the RT100. I have seen a generic procedure in the files section but I prefer the one that addresses all adjustments on the circuit board assembly.
Thank you, K5PA, Gene
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RC/RT-600 Memory Tune Oddity
I recently acquired an RC/RT-600 to replace an AT-600 ProII that I set up remote at the base of my flagpole antenna.? The AT-600 replaced and RT-100 in the same application.? With the RT-600, if I tune on a band, and transmit several times, it does a full tune on the first transmission and a memory tune on the subsequent transmissions.? If I change bands, tune there, and go back to the original band, it does a full tune on the first transmission.? Is this right?? If it is, why does the tuner need 2000 memories?
K5TAN
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LDG tuners are not open source.? You would need to contact The Mom And Pop company directly for everything.? Not a big corporation or some mystery China company.
David NE7G
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hello everyone. Looking for FIRMWARE on the pic tuner AT-100Pro screen controller costs pic16f876-20/sp. help out.
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Re: For sale RT600 & RC600
it has been sold....
Paul K3SF
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Looking to buy a RT600 & RC600
Hello,
If anybody has an RT600 with RC600 for sale, please let me know.
Tnx es 73
de NE7EE
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Re: For sale RT600 & RC600
Has the tuner been sold or is it still available?
Tnx es 73
NE7EE
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Re: At-1000 pro 2 and 10m
Steve – ? When I first set it up, I felt the same. But now that I’ve used it for a while, it seems natural to hold the button for a second and the issue is gone. ? I seldom use bypass and virtually never use quick tune.? I just let it follow the rig and do its thing.? I’m “sort of” operating remotely, as I am more focused on the computer screen in front of me than the rig/amp/tuner etc which is on another rack 90 degrees to my right.? Once “trained,” when operating WSJT-X (or any other digital SW) I just listen for the momentary “click” and know it’s ready to go.? I’m actually pretty impressed with this little unit.? In some ways, it’s way ahead of my Elecraft KAT500. ? 73 Lyn, W?LEN ? PS – Tnx for QSO on 12/29. ? ? ?
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From: [email protected] [mailto:[email protected]] On Behalf Of Steve_KE4LC
Sent: Tuesday, February 21, 2023 4:02 PM
To: [email protected]
Subject: Re: [ldgelectronics] At-1000 pro 2 and 10m ? Lyn, I have also been wondering about the bypass/quick/full tune button setup since the AT series was introduced - very awkward function combination! ?The timing gap between a quick tap to bypass and a 0.5 second press to quick tune is just too narrow.. ?In bright light, the bypass indicator LED can be hard to see unless it’s directly ahead. ?More than a few times, I have inadvertently bypassed the tuner while tuning. ?For something as critical as a bypass, it should have its own button. I am actually thinking of redoing the front panel buttons and have them controlled by a Raspberry Pi Pico + relay board to enhance the tuner’s capabilities to run in my remote rig setup. ?Doing so would allow remote access to the tuner functions and eliminate human button pressing timing concerns for end users..?
73, ?Steve KE4LC
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Re: At-1000 pro 2 and 10m
Memory tune on the LDG AT-897 Plus tuner is done by holding the TUNE button until the LED comes ON. ? Perhaps this is also possible on other LDG tuners. ? Perhaps not. ?
(The AT-897 tuners were only compatible with the Yaesu FT-897/D transceivers).
73, Kent K9ZTV
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On Feb 21, 2023, at 4:01 PM, Steve_KE4LC <sfwright101@...> wrote:
? Lyn, I have also been wondering about the bypass/quick/full tune button setup since the AT series was introduced - very awkward function combination! ?The timing gap between a quick tap to bypass and a 0.5 second press to quick tune is just too narrow.. ?In bright light, the bypass indicator LED can be hard to see unless it’s directly ahead. ?More than a few times, I have inadvertently bypassed the tuner while tuning. ?For something as critical as a bypass, it should have its own button.
I am actually thinking of redoing the front panel buttons and have them controlled by a Raspberry Pi Pico + relay board to enhance the tuner’s capabilities to run in my remote rig setup. ?Doing so would allow remote access to the tuner functions and eliminate human button pressing timing concerns for end users..?
73, ?Steve KE4LC
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Re: At-1000 pro 2 and 10m
Lyn, I have also been wondering about the bypass/quick/full tune button setup since the AT series was introduced - very awkward function combination! ?The timing gap between a quick tap to bypass and a 0.5 second press to quick tune is just too narrow.. ?In bright light, the bypass indicator LED can be hard to see unless it’s directly ahead. ?More than a few times, I have inadvertently bypassed the tuner while tuning. ?For something as critical as a bypass, it should have its own button.
I am actually thinking of redoing the front panel buttons and have them controlled by a Raspberry Pi Pico + relay board to enhance the tuner’s capabilities to run in my remote rig setup. ?Doing so would allow remote access to the tuner functions and eliminate human button pressing timing concerns for end users..?
73, ?Steve KE4LC
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Re: At-1000 pro 2 and 10m
Sorry, misunderstood question.?
My early reply was in reference to using ALE.? When scanning
with ALE you would want the tuner to go to bypass after
sounding/transmitting.? If tuner remains in line while
scanning it has an affect on the other freqs being scanned.
Please disregard my early post.
73
Emory? WM3M
On 2/21/2023 4:21 PM, Lyn Norstad
wrote:
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A
momentary (very quick) press of the TUNE button puts the
AT-600 into Bypass mode, whether you just tuned it or not.
?
The
question is, if you need it to tune, why would you want it
to subsequently go into bypass mode?
?
73
Lyn,
W?LEN
?
?
?
?
As
far as I know the AT-600 and 1000 do not go into bypass
after tuning, wish they did.
The
only way I have got them to go into bypass after tuning is
to use the other ALE program, connect the LDG USB device to
the meter port and set the parameter in the program to
control these tuners.? Have not figured out a way yet to do
this with ION2G.
If
you find a way please let me know.
73
Emory?
NNA3AH?? WM3M
On 2/21/2023 2:35 PM, Al Waschka wrote:
My AT-600 ProII does the same thing.? It is not going to
bypass because the SWR is good, but signal levels are down
10 dB or more on receive.? IF I go to a different frequency
and retune, the signal levels come up.? I am using it remote
with a 25' unshielded cable for control.? I have ferrite
clamp-ons on the control cable at the antenna, but my
suspicion is that RF on the control cable is interfering
with operation.
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Re: At-1000 pro 2 and 10m
A momentary (very quick) press of the TUNE button puts the AT-600 into Bypass mode, whether you just tuned it or not. ? The question is, if you need it to tune, why would you want it to subsequently go into bypass mode? ? 73 Lyn, W?LEN ? ? ?
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From: [email protected] [mailto:[email protected]] On Behalf Of Emory Haines WM3M
Sent: Tuesday, February 21, 2023 2:14 PM
To: [email protected]
Subject: Re: [ldgelectronics] At-1000 pro 2 and 10m? As far as I know the AT-600 and 1000 do not go into bypass after tuning, wish they did. The only way I have got them to go into bypass after tuning is to use the other ALE program, connect the LDG USB device to the meter port and set the parameter in the program to control these tuners.? Have not figured out a way yet to do this with ION2G. If you find a way please let me know. 73 Emory? NNA3AH?? WM3M On 2/21/2023 2:35 PM, Al Waschka wrote: My AT-600 ProII does the same thing.? It is not going to bypass because the SWR is good, but signal levels are down 10 dB or more on receive.? IF I go to a different frequency and retune, the signal levels come up.? I am using it remote with a 25' unshielded cable for control.? I have ferrite clamp-ons on the control cable at the antenna, but my suspicion is that RF on the control cable is interfering with operation.
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Re: At-1000 pro 2 and 10m
As far as I know the AT-600 and
1000 do not go into bypass after tuning, wish they did.
The only way I have got them to
go into bypass after tuning is to use the other ALE program,
connect the LDG USB device to the meter port and set the
parameter in the program to control these tuners.? Have not
figured out a way yet to do this with ION2G.
If you find a way please let me
know.
73
Emory? NNA3AH?? WM3M
On 2/21/2023 2:35 PM, Al Waschka wrote:
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My AT-600 ProII does the same thing.? It is not going to
bypass because the SWR is good, but signal levels are down 10 dB
or more on receive.? IF I go to a different frequency and
retune, the signal levels come up.? I am using it remote with a
25' unshielded cable for control.? I have ferrite clamp-ons on
the control cable at the antenna, but my suspicion is that RF on
the control cable is interfering with operation.
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Re: At-1000 pro 2 and 10m
I’m using an Icom 7300. A full retune or frequency change cures the problem. It’s a strange one!
Ian
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On 21 Feb 2023, at 20:35, Al Waschka <awaschka@...> wrote:
? My AT-600 ProII does the same thing.? It is not going to bypass because the SWR is good, but signal levels are down 10 dB or more on receive.? IF I go to a different frequency and retune, the signal levels come up.? I am using it remote with a 25' unshielded cable for control.? I have ferrite clamp-ons on the control cable at the antenna, but my suspicion is that RF on the control cable is interfering with operation.
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Re: At-1000 pro 2 and 10m
My AT-600 ProII does the same thing.? It is not going to bypass because the SWR is good, but signal levels are down 10 dB or more on receive.? IF I go to a different frequency and retune, the signal levels come up.? I am using it remote with a 25' unshielded cable for control.? I have ferrite clamp-ons on the control cable at the antenna, but my suspicion is that RF on the control cable is interfering with operation.
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Re: Using Z-100A tuner "manually" with home-brew rigs
I have 2 QRP CW transceivers that I built (20M, 40M) following a design published by K9AY in QST Dec 1990 and Jan 1991.? They each run 5-10W output.? I also have a Radio Shack HTX-100 10M CW & SSB radio that runs about 25W output.
There is no obvious way that I could see to activate the Z-100A from either of the home brew rigs,.? The HTX-100 does have a low power switch that I use when I am tuning it.? However, in all 3 cases, I simply press the button on my keyer that closes the key and tune with that signal.? I'm not worried about the 10M rig since it has a low power option.? The 2 home brew rigs seem sufficiently robust to use a manual tuner with them and I never know in advance, other than by listening to the receiver, where the right starting point will be.?
But it is my understanding that the Z-100A will start tuning at the last tuned combination for the frequency it sees, unless I read that wrong.
Being able to use the LDG tuner greatly simplifies the kit I need to carry, if it works.
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Re: At-1000 pro 2 and 10m
I've noticed the exact same behavior with my AT-1000 Pro II and IC-7300.? I'm using it with a K4KIO hexbeam.? I don't think I tried it on the Buckmaster 7-band OCF but will try to remember to do that tonight.
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Mike Olbrisch
Westley Clavey, W5WMC