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Kees, That MCP3422 is nice, but is a single ADC with a mux up front and quite slow. So Dr Bill's objection applies, we are getting forward and reverse readings at different times and thus at different

When the station is on, try disconnecting the antenna. Then try grounding the antenna input. That should give you some idea if it’s coming through the antenna. Clark Martin KK6ISP

How nice to find another SOL-20 builder. I bought the bare board kit from Processor Tech in ca ’75 or ’76 and built/added things around it…keyboard, composite video monitor, tape deck (cassette,

Hi: I've scratch built my own BITX using Manhattan construction on copper clad PCBs.? At the moment there is no enclosure or shielding beyond some attempt to shield the digital controls from the RF

Greg, I checked your info out and it looks very good. I saw you were using the noelec upconverter - i think? What did you set your ubitx in the bitxmanager to: sdr offset freq? sdr frequency mode?

uBITx #2 arrived today in 8 days.? Swapped it out with #1 to test and it worked fine for a QSO on 20 meters.? Good deal.? Fast! Tom AB7WT

The site stripped filenames from my images.? In order, the above scope capture tx bands and power levels are: 80m - 16W 40m - 18W 80m - 18W 20m - 14W 10m - 5W? (I know that one looks ragged.?

Back in 2012 my next door neighbors maple tree was hit. It ran down the tree into the ground. To the north it ran along the galvanized water line where it blew the water meter and a chunk of the

If anyone is curious, here are some two-tone test (700 and 1900 Hz) scope captures after the above mods: I'm a rookie at reading these scope traces.? But they don't seem terrible to me.? (Sorry, but

Should be Motorola R56 Standards and Guidelines for Communication Sites: www.repeater-builder.com/antenna/site-stuff/are-fifty-six-man-2005.pdf (

Heh...heh...heh... Jack, W8TEE

Maybe we need a dedicated $2.50 Nano for this ? ....and just pass the screen data to the main one ? Or a here is where we have a new Raduino or Protoneer, or ?? Phooie, the plan just imploded. 73

I understand that, it’s just that my station has to run 24/7/365. (2 WINLINK gateways). So we do the best we can. In the 19 years we’ve lived here, the trees have now grown considerably higher

As a minimum, I would display Forward and Reverse power in dBm ......that's all. If you want to know Watts you can have a look-up table or graph on the bottom of your UBITX.....0 dBm is 1mW, 10 dBm is

Good luck shoehorning any of that into the uBitx's Nano. For starters, it does the computations in floating point, vs the 32 bit fixed point of post 48223 Be aware that 48223 has a bug in the display

With all the diode non-linearity in directional couplers and my desire to *not* do another "n" polynomial curve fitting program and look-up table mWattmeter (which, by the way, worked great)......I

I think the vast majority of FT8ers are hoping their contacts are logged into LOTW for awards sake. The latest and craziest one in my opinion is the working of all the grid squares on the earth!? But

Tim, I've looked at the numbers and think I can do it ...INCLUDING.... covering PayPal charges (nearly everyone wants to use that) and postage to you in the USA at $5 for 2 kits (either 2 AGC kits or,

I've been running my uBITX stock hardware @ 12v since I fired it up.? I've got Ian's wonderful firmware and I soldered up a EasyDigi and plugged it into a SFF PC running Ubuntu.? The uBITX runs

Thanks for the comments and thanks for the suggestions. I'll probably try them both after a few days getting my sea legs with it. 73, Pat AA4PG Pat Griffin http//www.cahabatechnology.com/aa4pg.html