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Tom, My guess on this would be: 1. They are Russian and don't go by the norm. 2. It's a single board, surface mount technology FRU. They may not see the need to have a maintenance manual since it's

In my mind, to not publish a service manual is really against the ethos of Ham Radio. Isn’t ham radio all about experimenting, learning, and tinkering? Fixing, modifying l, and building gear is

If they did, I would think it would be on the web site ( Downloads section) but I only see a "User" manual. -- 73, Norm/KC1BMD

Has Lab599 released a service manual for the rig? Anyone have a link to it? 73, Tom, N2YTF Sent by phone, please forgive my brevity and poor typing.

That could be really annoying. Hopefully it's an easy fix. -- 73, Norm/KC1BMD

After further testing - no the firmware change did not fix the tuning issue. Same symptoms, I'm on 20m most often and when I tune down sometimes I hear a static click and the VFO jumps up

Here it is: https://www.amazon.com/gp/product/B09LV6VWLF/ - Trevor

Since it is unknown if Lab599 looks at this site, it's probably better to let your feature requests and bug fixes be known by emailing them directly. -- 73, Norm/KC1BMD

I agree! 100mw -1 W range will be amazing for several situations.. WSPR beacon for instance..! Thanks! Enviado desde mi iPhone

Hi Trevor, Could you share the link to the PTT from Amazon? Or, maybe what the title is? I can't find it. Mark -- Mark G Thomas <Mark@...>, KC3DRE

Not sure if there is a hard reset you can try. The manual talks about a reset to default settings that might be worth a try first. Failing that i would try and see if you can reload the firmware as i

very sorry to read this, OM... my fear is that your rig will require service to replace a failed audio chip...

Hello I have lost all audio from my tx500. I was using the "Tone" to check the swr of an antenna it made a stage wining nose then i lost all audio. it does not even "Beep"? (cant hear anything) when

Thanks Trevor, you made a nice job of those. I think I will probably start with rewiring the adaptor that came with the tx-500 as I won't have any other use for it but it does look a little fragile

I really like his one with the PTT integrated in the radio cable.? I got the PTT on Amazon.? Ended opening it up to rewire it and completely replaced the cable that goes to the radio (I think the

Sub-watt power option would be a great option for several situations. Lab599, please consider adding this in a future update.

W2ENY has a great adapter that goes from gx12 to mic/headphones/ptt. W2ENY Radio Accessories for the TX500 w2eny.com Nick Smith KJ7NWK 5035803604

Using pin 2 is the only change. The Lab599 website has a PDF just for adapter cable pinouts. When I get back home I’ll post a few pictures of the cable I put together with integrated PTT.

Also curious how you got your Heil BM-17 connected to the TX-500 73, Matt N3VAN

Thanks Trevor, that's good to know. Was the adaption any more than just using pin 2 as the input? Ian