Apache Labs Community Forum

I'm day 2 into my Anan G2 ultra and using Thetis,

So far I have the power calibrated fairly well, the only issue are, 1) I can't get 100W on 12M and get the other power levels to work. Meaning, I set up 12M to do 100W at 100% drive, The other power levels start out too high and for some, I run out of adjustment to bring them down. I ended up setting 12M for 93W max, then everything else was OK. I only have this issue on 12M. 2) On 6M, it set up OK, but the PA buzzes when much above 60W. I don't recall seeing limited power for 6M.

I have the display setup to do panafall, works OK then randomly the waterfall part blows out. I found the setup section for the waterfall and can get things setup to be close to what I want, but I can't explain why it's working fine one moment, then blows out ( like being overloaded ).

I found a tick box ( I think in the transmit section ) called Alex. if I uncheck it, the RX seems much quieter, but then I have no power output Other than being mentioned as a filter, not sure what's going on.

I'm surprised that Apache Labs does not provide a setup/config file for Thetis that presets the software to work reasonably well. Personally, I like to play with setting things up, but now I do understand some of the negative comments I read.

Thanks for the help so far, learning this radio/software as I go.

Being that Apache labs doesn't actually provide software support other than pre-installing the firmware and operating system for the G2 radios you are now experiencing what some people would consider the downside of using radios that depend on open source software and developers.
As Scott has mentioned elsewhere, the design of the PA in the radios makes it difficult for developers to come up with a standardized procedure to control all of the versions of the Anan radios. That's why you have to spend the time getting things dialed in the best that you can.
The difference you mentioned in output on 12 meters isn't enough for anyone on the other end of a qso to notice. As for the buzzing on 6 meters, you may be hitting the limit of the PA design ( components used) . Some radios don't put out 100 watts over the entire range of bands that they cover.
As for your waterfall issue, are you saving the settings after you get it adjusted to your liking? That could contribute to the problem you are having. It's either that or you have something that is causing the interference that makes the display blow out. Do you hear anything in the audio when it happens?
James
WD5GWY

Trucker wrote: Sat Sep 13, 2025 4:45 pm Being that Apache labs doesn't actually provide software support other than pre-installing the firmware and operating system for the G2 radios you are now experiencing what some people would consider the downside of using radios that depend on open source software and developers.

This is a key point. Regardless of what you might imply from the Apache website, Apache doesn't write a stitch of code for software, middleware or firmware. All of this comes from a small, dedicated, and talented group of volunteer, open-source, developers who have no monetary ties to Apache. All you buy from Apache is hardware, and the fact that the open source code is pre-loaded on the hardware.

As Scott has mentioned elsewhere, the design of the PA in the radios makes it difficult for developers to come up with a standardized procedure to control all of the versions of the Anan radios.

That's not exactly what I said

What I did say is that most radio designs use some combination of hardware (e.g. an "equalizer") and/or software/firmware (calibration table) to get a nice, flat, linear response for output power control. Unfortunately, the original, open source, openHPSDR RF hardware design, which Apache has continued to use in all of its designs from the original Hermes (not to be confused with Hermes Lite, which is completely different) all the way through to the latest G2 and G1 variants, does not contain any hardware that can perform this flattening/linearization function. That leaves the calibration table method. While there is a gross method of making this adjustment in piHPSDR, Thetis has a much more fine grain calibration capability. And, since Apache does not a) characterize each unit before it ships, and b) therefore doesn't provide any calibration data in any form, it remains up to the user to perform whatever calibration they choose to in whatever level of detail their chosen client software makes available.

As for your waterfall issue, are you saving the settings after you get it adjusted to your liking? That could contribute to the problem you are having. It's either that or you have something that is causing the interference that makes the display blow out

I think we would need to see some screen shots or a video of what these "blow outs" look like to better diagnose them.

Finally, the difference between 100W and 93W is less than 1dB. However, the shortfall on 6M is very concerning. The unit is advertised at 100W over the full frequency range.

A very common problem on 6M is the user-supplied power supply not keeping up with the greater current requirements on 6M. You might check your power supply voltage at the rear panel connector of the G2 when trying to drive up to 100W on 6M. Do not check it at the power supply end as the problem could be in the power cables or connectors.