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Hi, Bill I am sure, an SDR with a wide visual panorama is the best. Something like RSP or

old AM radio ?

Recommendations for an inexpensive broad band HF RF 0-30mhz RF Noise sniffer (no kits). May be a spectrum analyzer? NanoVNA? TinySA? Will be used to chase down RF noise. TNX Bill, WA2WIO

Suffering an S5+ base noise level. Noise filter set at 2. Vol set at 10. Any advise on how to reduce the static level? TNX Bill WA2WIO

Thank you. Yes. Opened a support ticket. Below 1uH, it does not work well. The meter is autoranging. So cannot pick the range. I have another meter that has a 2uH range coming

Hi, Michael Most likely the autamatic range select does not work properly. Try to select 40uH range manually and do a calibration on this range. I can say something stupid, i am not familiar with that

Hi. That's just a script with math. You can set up your own LC values in the pic cells while progtamming.

Hello, This has probably been answered before, but I am a bit late in the game with this project.? Does the tuner take the LC values on screen from script by doing the math by looking at the fixed

Toroid cores uH values can vary depending on how they are wound. If you scrunch all the turns together, the inductance is higher. Take a look at page 4 of 'Q-Curves' on the Micrometals

To make sure I am winding correctly I am trying to measure the toroids with. a B&K 880 One confusing point is called for inductance is 0.45uH for L4.? But multiple the calculators call for 9

Ok, thanks David. I’ve ordered a replacement and as long as this one doesn’t lock up or turn itself off I can get along fine without the change in button behavior. Thanks for all your work on

Hi, Bill You can disable automatic mode changing some cell in the FW hex file. After that you can use ATU-10 like simple SWR meter to build curves.

Hi. No, that is not so easy, you can do changing button function and recompile FW with MikroE MikroC compilator.

Thank you Mike for your response. I am running QRP (1-3watts) with a USDR type xcvr. I have a HeathKit HM-102 200w/2000w SWR Bridge. I am trying to avoid having to go buy a LP swr bridge. My thought

Bill The ATU-10 doesn't have a bypass mode in the traditional sense. After a reset, it will wait unti it sees TX power that causes the directional coupler to report a VSWR greater than the programmed

I installed a new 40m dipole and want to tune it. Need to measure and chart the SWR curve. Can I use the ATU10 SWR feature with the tuner in a bi-pass mode? How would I go about this? Thank you,

Greetings David. Yes that is correct. Is there a way in FW to change those timers? I'm just me, but I would prefer a short press for tune, 1 Sec to power off, and 3 sec to reset. Thanks!

Hi, Randy It is definitely more then 1 sec now. About 3 sec, Short press for reset, 1 sec for tune, 3 sec for turn it off.

Hi, Randy That issue is not in the FW. Thats a hardware, interferences to the Oled controller.