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Hello everyone,

my tuner looks like it forgot how to tune on 10m ! Each time I try to tune, relay click for a couple seconds but end up with ALL capacitor AND inductors engaged, which gives an ok SWR of around 1.5 but I get no reception.

When I manually adjust capacitor and inductors, I'm able to tune even better but with full reception.

I've tried to "learn" each tune manually but some time, it does the same thing, click a couple second when tune and no reception again.

Any ideas how to fix that or clear what is learn in memory ?

Thanks !

I've owned two Pro1000II tuners and one Z-100A tuner. I purchased the Pro1000 because my Z-100A is near perfection but I wanted more power for digital and also an upgrade path, if I ever receive my Mercury IIIS. (I just wish the Z-100A would not sometimes take a several seconds to tune, so I could use it with the fragile FETs in my PreppComm MMX QRP CW transciever/decoder/encoder SDR--I had to replace the surface mount FETs once so I stopped using my LDG tuners with the MMX :( ).

My first Pro1000 had the behavior you described and several other problems storing and recalling previously stored frequencies as well as problems achieving a sub 1.7:1 (or even 2.0) SWR, unless I manually adjusted and stored (which it would often forget in a fairly short time). Manually adjusting L and C on the old one would sometimes only work in one direction; I'd go too far with button clicks and could not go back "the other way" with an opposite button click. I would then need to do a full forced tune (long press) and start over manually, having counted button presses the first time to not overshoot.

Sometimes my new 1000 still fails to find a sub-2.0 tune. (I don't really care much if it doesn't achieve the 1.7 setting, because I just want to keep my transmitter from rolling back the output, given that, AFAIK, standing wave coax losses between antenna and transmitter are invariant of the match achieved)

Cal -- AD8Q

On Fri, Nov 18, 2022 at 08:46 AM, Paul-Ka5pmv wrote:

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Side question, how do you read the state of the relays?? Is this in the manual?

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Paul

Ka5pmv?

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Sorry I missed that question, when you manually tune the C or L manually, you can see every of the 7 bank of relays for each C and L populating with the LEDs. When they are all off, no LED show up and all LED will flash to tell you they are all turn off. When LED are all lit, all the relays are engaged.

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On Fri, Nov 18, 2022 at 01:30 PM, cbrabandt wrote:

I've owned two Pro1000II tuners and one Z-100A tuner. I purchased the Pro1000 because my Z-100A is near perfection but I wanted more power for digital and also an upgrade path, if I ever receive my Mercury IIIS. (I just wish the Z-100A would not sometimes take a several seconds to tune, so I could use it with the fragile FETs in my PreppComm MMX QRP CW transciever/decoder/encoder SDR--I had to replace the surface mount FETs once so I stopped using my LDG tuners with the MMX :( ).

My first Pro1000 had the behavior you described and several other problems storing and recalling previously stored frequencies as well as problems achieving a sub 1.7:1 (or even 2.0) SWR, unless I manually adjusted and stored (which it would often forget in a fairly short time). Manually adjusting L and C on the old one would sometimes only work in one direction; I'd go too far with button clicks and could not go back "the other way" with an opposite button click. I would then need to do a full forced tune (long press) and start over manually, having counted button presses the first time to not overshoot.

Sometimes my new 1000 still fails to find a sub-2.0 tune. (I don't really care much if it doesn't achieve the 1.7 setting, because I just want to keep my transmitter from rolling back the output, given that, AFAIK, standing wave coax losses between antenna and transmitter are invariant of the match achieved)

Cal -- AD8Q

Have you been able to fix those issues you were getting ?

Thanks for your reply

Claude