KC9UMR

Initial Thoughts: I bit the bullet and paid $25 for the RT systems software for my Anytone 578, because, well, the Anytone software is junk…. but it’s the same look…

With the sunspot cycle coming to a point of good higher frequency propagation, I put a 10 meter radio in the car.   Why not?  The President Lincoln II+ has some…

Well, the original configuration (SteppIR controller passing commands between the radio and PW-1) worked… for a while. I suspect there was some collision or synchronization that fell out of timing…

I’ll spare the reader yet another glowing review for the Mini1300 analyzer. No I won’t – I’m still going to spew my thoughts on this thing.   I picked one up…

Background Last year, I acquired a SteppIR “SmallIR 80” antenna… This is their “SmallIR” 20 – 6 vertical, with an additional coil for 30/40/80 meters. I don’t know if it’s…

I love the Icom 7300 – it has a TON of features. One of the intriguing features is the voice keyer – the radio has 8 memory slots, four of…

For this project, the basic design was pretty simple. But now comes some details. This is where the design really needs to be broken into parts… inputs, outputs, extra features……

With multiple station accessory devices (Headphone audio splitter, DSP unit, multiple radios, just to name a few) powered from 12V, I had a realization. There’s a LOT of wall warts…

I’ve been an electromagnetic interference (EMI) engineer for… well… a bunch of years at this point. As such, I’ve learned a lot about how to tackle problems, and how to…

Just like any other tinkerer, I want a completely instrumented workbench with scopes, analyzers, generators and power supplies…   but there’s generally a tradeoff.  Space, cost, accuracy….   Older equipment is less…