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Hi Gary I added the HPF to the 30MHz LPF. It's a 5 pole filter with cut-off at 2.5MHz. The circuit is standard. You can find it on Github in the docs directory:

I don't have a complete write up.? Happy to answer any questions though.

Ian, can you share details of your high pass filter? I’d like to attempt to build a tiny surface mount HP filter into another compact rig that desperately needs filtering from AM broadcast

Thank you for the information.? I will start adding this Utimatic mode to my V6 software. Ron

That is a very interesting article by DJ5IL. He Does a splendid job of describing the differences between the keying styles and this is the best information I have read that truly explains those

I also commented on the K1EL keyers as he has included Lead-In and Tail Timing all within his keyer eliminating the need to adjust any radio settings which is a consideration when using someone else's

the Mode is called *Ultamatic* , mode The best explanation of Squeeze Keying is by Karl Fischer DJ5IL, *All About Squeeze Keying* , http://cq-cq.eu/DJ5IL_rt007.pdf I cannot describe the Utimatic

Was that TP1 and TP2, or TP21 and TP20?? All are on the board.? TP1 tests the antenna input, TP20 tests the audio after the demodulator, and TP21 is the input to the audio amp with muting. With the

I guess I should have mentioned, low volume from speaker or headphones. No difference. 73, Richard AG5M

I would check the earphone jack. Plug in a pair of headphones and see how much audio you get. Then remove the headphone as see if the audio came back. Barry

Evan This morning I fired up the radio again. Very low volume, but after half a minute, the volume came blasting back. That lasted for some 10 seconds, then went low again. Stayed low. I have

The problem is the board manager and library selection.? Details on how to resolve it are here: KK4DAS - Amateur Radio Explorations - ham radio blog: Homebrew sBitx - Power and SWR Meter Working (

Several weeks ago someone posted an alternative to IAMBIC A&B.? I lost the email and wanted toinclude this mode in my new V6 software.? Please re-post or send it to me direct. Thanks in

Great Job onthis..loks great...

Morning all, N4CNR (Rich) Thought I would give you a update on the new code and changes. I moved to a xiao-esp32-c3 board and a pcf8575 i2c io board , also added eeprom for saving changes, code for

Hi David, Are the stl files available for your build? I'd like to try to give it a go. 73 Jason KB2SDR

Hello, I have also problems, fwd is on pin 3 and refl on 2 I adjusted in the sketch but no result alway 0w and swr 1. During transmit I have activity on I2c and of course I triple checked for not

Hi Dean Yeah, you did a great?job with your build - very impressive. I have been following your project with great interest - here and on Soldersmoke. This is the first version of the PCB. There

Might look at what Sunil has.? Don't know if he has anything, but it doesn't cost anything to look. Gerry Sherman Sent by the Windows 11 Thunderbird

I have a uBITX v6.? I'm wondering if there is a much better looking case to replace the rather ugly black OEM case.? Anyone know of one I can put my v6 into?? Thanks, Richard AG5M