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Showing posts from March, 2019

More Transceiver Projects

Yesterday I received an email from Jim up in 7 land inquiring about some Arduino sketches and problems compiling the sketch. I think some of the code was provided by me. I too at times have noted some issues with sketches that previously complied "slick as anything" but then started to hiccup. Has any one heard about Arduino code that may contain viruses? Pete N6QW SS Podcast #210 we talked about the Vintage Sideband Roundtable ~ at any minute smoke and flames can come from an old boat anchor. It is true! Try this with your uBitx! Pete N6QW  Just can't leave well enough alone! #4 Search this blog for the Simpleceiver and you can see the painful detail on how to build one. The other day I was thinking about the original Simpleceiver and how that I still had most of the prototype boards still screwed down to a chunk of wood. Frankly I was OK with the 12.096 MHz crystal filter but still felt it has some short comings. So then ...

An Arduino Discovery and a Mystery

What should be clear is still veiled! So OK I have a lot of transceivers that I have collected with most being acquired on the cheap. So while there may be many, the invested dollars are relatively low. Periodically I will drag one out of the storage bin and try to fix the unit. This is done more so as a technical challenge; but often I drive myself nuts in the process. Here is a recent example. Several years ago I bought a Ten Tec Triton IV Model 544 which is the digital version of the Model 540. Several years ago I actually converted a 540 to a 544 and you can see that on my QRZ page. It was also a subject of an article that appeared in QRP Quarterly. Thus I have a bit of background with this very FB Ten Tec rig. The Model 544 I have supposedly was hit by lightning and was inoperative. Well that was true; but not a total disaster. (That is why I got it so cheap.) Replacing two back to back diodes that were shorted ahead of the reed relay that disconnects the receiver dur...

So How To Do CW on a Homebrew SSB Rig?

3/16/2019 ~ Remote Antenna Tuning 3/14/2019 ~ Calling All Junk Boxes???? Calling all Junk Boxes, N6QW is looking for a part! Recently I bought an SBE-33 SSB Transceiver for $52.30 and have been doing some major restorations, which principally involved a great deal of capacitor replacements. I did have to replace the speaker which was blown; but had an exact replacement taken from a Junker unit.  I have had the rig on the air and so far I am impressed at the 1963 technology --even with an analog VFO. Yesterday running my SB-200 I worked Croatia, 9A5W, Nikola on 40 Meters. That is a big first for me and I got a notable report of how good it sounded.  A short story --- the dial markings are at every 5 kHz and a ham running a FLEX5000 contacted me to tell me I sounded bad and was not on frequency (7.208 MHz). I asked that he give me some chatter wherein I zero beat him. Then when I transmitted back at him inquired about the signal. He said I don't know w...