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I get it. 100%. I have still bought, and likely will in the future, buy HF products. My only issue is that to those newer, less experienced hobbyists, the products are billed as both, works out of the

I found a note where I had seen 2MHz spurs. You can see them in the screen of the spectrum analyzer. /g/BITX20/message/104598 In that threat (of > 340 entries) I finally

I started building radios in the late 1960's. I realized one had to be a metal worker and own an expensive set of chassis punches to work with tubes so I quickly migrated to solid state. We could only

Ron, when I was working on one of the used sBitx V2's that I bought I had problems with spurs 4MHz or so off, and I believe I recall a 2MHz absolute spur once. Of course the low pass filters won't

Has anyone else looked for transmitter spurs from their zbitx? I'm wondering whether I got a build that can be fixed somehow ... Ron

Thanks a lot Mike for the clarification. 73 Jon, VU2JO [email protected]> wrote:

I stand corrected. I confused the 2 W with the previous Pi Zero. ?If running on a quad core, it should be possible to lock down the keyer process so it never gets suspended or delayed or otherwise

Jon, The 1625 had a 12.6 volt filament instead of the 6.3 volt filament of the 807 but the plate voltage was still high voltage. Earlier auto radios developed the high voltage for the plate via a

Thank you!? ?I had the wrong email address. Going foward I will send to the sales email address.

JJ, Thanks a lot. Any idea whether sBITX v4 is likely to ship with your 64 bit version of software? 73 Jon, VU2JO [email protected]> wrote:

I just tried an external keyer with the radio set to straight key, and on a dummy load. The keyer is set to 17 WPM. Listening on a nearby receiver I can hear incomplete characters and the odd missing

Unfortunately this update didn't fix the issues. First, IambicB is still broken, I put Ron Carr's fix in a PR. Second, when I took the radio out and attached it to a EFRW, through a tuner, on

Ah, THANKS, Steven! https://datasheets.raspberrypi.com/rpizero2/raspberry-pi-zero-2-w-product-brief.pdf page 3: " Processor: Broadcom BCM2710A1, quad-core 64-bit SoC" Then there really is no

Gerry, Thanks a lot for the detailed suggestions, especially as you own all three versions. I did not know that there is a 12V version of 807! I thought that all vacuum tubes need high voltage. I

Before this goes much further, we should correct the record. The Pi Zero 2W does not have a single core processor. It has a quad core of the Pi 3B+ era, but with half the memory of that board. Thus

Ron, thanks for taking the time to write such a nice explanation! I guess the real question is "what is the distribution of delays caused by operating system housekeeping operations on a single core

Contact me, With the email with your detail Madhu, N6QIP

Very simple: ?data sheet, p2 . ? Guaranteed “no destroy” at SWR up to 20:1 any phase

If you haven't noticed by now, HF Signals doesn't care if some people are unhappy with the product. Profit and sales come from the fact that you can produce things cheaply. For those who are bothered

John, We haven't received your email. Can you resend it to sales at hfsignals dot com? To answer your question, we are working on bringing out the V4 as soon as we can. We don't have an exact date