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12 hours is fine. ?The GPS technical information that’s being cached is going to have expired after that.

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Good Afternoon Folks Just put my new LB QDX? on the air after finishing up assembly and 1st bench checkouts late yesterday. This morning I ran some benchtop frequency checks with my Leo Bodnar dual

They should be fine, just make sure that the load and DMM are floating.? Those regulators measure and regulate current on the negative leg, so anything shunting that will affect the current

Ed! Found a stamp! In the mailbox on the way (no routing number). -- 73 Karl KI4ZUQ

Cal, This is what I do too after creating with your help the low power version of the firmware. I am glad you and Dirk find the mod usable and probably useful. Let’s test it more. As we discover

Hear here! This little radio is fabulous. I'm constantly amazed at its performance, and I'm using only CW. I'm sure people using the other modes are also amazed. THANKS again Hans!? ...can't say it

Dirk, You can use vertical expansion on your slicer to adjust the cap hight. It will match other caps hight. -- 73, Sardar (AC8L, 4K6SA, VA3DUA).

Not that, it's the same with no LCD installed.? My guess is something to do with the power up process.

Sorry for the non-technical input. Just want to show how it looks with the button cap :-) I'll do some more testing, as soon as the new batteries arrived.

If you are concerned about coil (or other heavy component) movement, you could stake them with a few dabs of "neutral-curing" silicone adhesive, like this one:

Thanks Ed

Hi Sardar, My understanding of the stock ATU-100 firmware is the same as Barb's. The “TUNE” button does serve two functions. A long press will put the ATU into the “TUNE” state. A short press

Okay, Ed, N7SNT, it is in a business envelope today, Saturday, Nov 16 and I have no stamp! Will get some of those Next week. I will post USPS tracking number as soon as it gets mailed. -- 73 Karl

Thanks for the suggestion, Don. I don't have a proper lab power supply that supports constant current? but I have a couple of Drok buck/boost regulators that have adjustable voltage and current.

Thanks for all the ATU background information, Sardar. With the method I've adopted, I'm using autotune and it works well for me too but I'm sort of faking manual ATU operation. When operating, I make

Your smps are "hiting the roof" Most of "black row" errors on lcd i read about here are due short of lcd pins to chasis/gnd or pin to pin solder bridge.

Hot glue gun works, coils in my qcx still in place after 2 years of jumping inside my backback. For something permanent B6000 is great glue for electronics since its not agressive and his bonding does

Dan, if you refer to the schematic you will see that all the buttons, including the switch on the encoder, all share one connection to the microcontroller pin 26. The encoder itself labeled ROT A and

Barb, I thought it will reset all relays to no-tune state. But apparently it seems it does not (even though oled displays "RESET" text. -- 73, Sardar (AC8L, 4K6SA, VA3DUA).