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The stm-2 board with the modified Adafruit drivers are much faster. Here is a Youtube video showing the difference. https://www.youtube.com/watch?v=5mDnKBNl9sY After I get a couple of projects

Very much on topic for me, thanks! ?So getting sent to ACS is to be expected. ?Guess I'd better go check that mailbox. In my case, the final 4 zip digits may be a bit superfluous. ?A county of over

Rob Found it in my reference book. Thanks Art Sent from my iPhone

Gidday Randy Attached the circuit here. ?Audio not so scratchy and more mellow. Ugly construction is very fiddly but it works. ?Take the red lead off the volume pot and attach AUDIO IN. Attach AUDIO

Rob Initially just the 40 m version. I am looking down the road to a multiband at some later date. Thanks for the info. Time to get my reference book out to review. So with the switch closed vcc is

Yes, Raj, I think it is though I haven't heard that from him. Regarding the PLJ-6LD counter, there is an interesting video on YouTube examining and demo-ing the unit. Google it. I have found a web

Ooops should read pulldown as diagram. Most of the code at the moment is display stuff. The icon.h can be deleted I suspect as it was development penguin pic but i didn't spend time looking too hard

Noel Which AGC circuit did you use? Randy

OT. All foreign mail has no zip+4 code on it which is used for routing and delivery in the US. It is all routed (via image) to ACS for US routing. Each section of the country has a central database of

I have replaced the IRF510 and this what I found with a cheap Chinese ESR component tester. The original had C=388pf, Vt= 3.7. Replacement has C=1.13nF, Vt= 2.7. Upon the first key up, the speaker

He has them as pullup via 10k resistors, -- Rob G4NQX

Hi all, I've just assembled my new BITX40. I'm receiving a lot of strong AM carriers in the European ham section (7000-7200), that are actually from broadcast stations in the 7200-7450 section (41m

Made two ugly AGC circuits for my BITX40s. ?Now audio in each is very smooth and even. Very worthwhile when using phones. ?See photos. Cheers - Noel

I have been following PD8W (Willem) progress on his build out of a lcd display/si5351. His code and hardware are listed at PD8W.com. After some hard work I have the display working - and looks like

I think DuWayne will agree that there's only so much you can do in a library to speed things up. Some libraries use floating point math and, without a math coprocessor to help things along, it is

DuWayne, Does the graphics library speed up the graphics by a significant amount? ?? It certainly looks interesting. I followed your journey with the SNAjr with interest.? I was doing something

I have been playing with a couple of different 32 bit alternatives to the 8 bit Arduino Nano that I had been using in most of my projects. I had tried several of the Teensy models both the LC and the

I thought the BITX40 PC board stand-offs would be suitable earthing points. But there is no continuity between them and the battery or psu ground.? Even the DDS stand-offs are not connected to

The hour is to debug an amp. ?Getting all that going on the Raduino and sorting out complete test procedures for the Bitx40 would take a month or two. ?Designing it is not trivial, but once done it

Rob, This is GREAT. Please email me (kc7rys @ gmail dot com) if you don't mind, I'd like to discuss a way to make this available for anyone, not just members of the group, if you're okay with that. --