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How embarrassing. I counted the pins on IC3 incorrectly. My sincerest apologies. I really really appreciate tour help. Thank you for the prompt with the data sheet :-) Here is what I get for IC3 now

David, That is normal for T2.? Follow the schematic, and you will see there is a DC connection between all of the windings of T2. 73 Evan AC9TU

David, Here is the datasheet for the FST3253: https://www.mouser.com/datasheet/2/149/FST3253-113358.pdf Pin 16 should be at 5 volts. Pins 3 to 6 are correct at 2.5 volts. Pin 9 is DC connected through

Something I think might be worth mentioning. There is a section in the build manual (page 36) about a continuity check for trifilar T2. "The photograph (right) shows the trifilar wire ending holes

Has anyone ever seen this problem? Did I do something wrong setting up the flight? Never had this problem. The balloon is W5BII launched for Field Day thanks Ted KG5TED

Hello Evan, Thank you for the response. I have always applied power only when a dummy load has been attached. I never got far enough in configuring WJST-X to try the CAT control. The USB/COM port

Ed, I would start by verifying the 5 volts to the display.? This would check the connection of the display and that the 5 volts power supply is working. If the above checks OK, then look at the

Right now i have no LCD readout. ?My computer recognized it as a drive until I copied the firmware to its directory. ?At this point I can’t change modes without the readout.

Oh, Yes! -- JimC (KQ7B)

Make sure you have the LCD potentiometer counter clockwise fully and then adjust it till the blocks disappear. Do you have a side tone when you key in practice mode? -- Colin - K6JTH

Followup re: RFI. Added #rfi tag and this link below to an article that has several solutions for RFI for hams, like me, who have no nearby natural grounds (I forgot to mention I have a second floor

I just finished testing my QMX for the first time. My computer recognized it as a flash drive, and I copied the new firmware to the directory. ?However, I have no audio and no digital readout. My QMX

EMTECH ZM-2

Hi I suggest 2 tuners 1- manual, for products like QCX, QDX-M vs 2- auto, for products like QDX, QMX (I am using ATU-10 now) 73 muhsin TA1MHS

If the price was right and the kit build looked reasonable (I’m still getting comfortable winding toroids…), I’d be in the market for a low-power matched tuner for my QDX. Bonus points if the

"Sounds like an RF in the shack problem.? 73, Don N2VGU" Don, it does, doesn't it? Results are so random and the fact that the computer is affected strongly suggests your point of view.. I'm at a new

Yes please, an auto tuner would be great! Thanks, Roy WA0YMH wrote:

If you follow the online instructions and not the supplied instructions that kit is a good deal. I would like a compact automatic tuner that talked to QRP-Labs products. So that the first tuning it

Hi Cliff, Thanks for the input. I already had TX attenuator at 0.0. "Signal range doesn't make any difference with transmitting"? - this suggestion showed up in a couple places, including a video,

Larry, Do you mean an automatic tuner?? There are multiple manual tuners like this: https://www.hamtwowayradio.com/product/1-30-mhz-manual-antenna-tuner-kit-for-ham-radio-qrp-diy-kit/ 73 Evan AC9TU