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KC9UMR

Ramblings of yet another nerd...

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Latest Post

An update to the box for going places APRS Vol 5. The Saga Continues Revisiting APRS… vol 4. APRS – Update 2, or is it Vol 3? APRS – Update 1
MMDVM and DMR Radio and Electronics

RT System’s Software: Anytone 878, First Impressions, and a 578 follow up

2022-06-30 Ken Cechura

There’s not much to be said here – the 878 software is almost identical to the 578, but it’s tailored for the slightly different feature set. I was hoping I…

MMDVM and DMR Radio and Electronics

RT Systems’ Anytone 578 Software: Quick Update 1

2022-06-20 Ken Cechura

In my previous post, I noted that the RT Systems software had at least one flaw in the development environment, which was causing an error when opening certain menus. I…

MMDVM and DMR Radio and Electronics

RT Systems’ Anytone 578 Software: Initial Impressions

2022-06-16 Ken Cechura

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…

Radio and Electronics

Astatic RD104 “Road Devil” Battery Eliminator Mod…for radios with power at the mic jack

2022-04-26 Ken Cechura

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…

Radio and Electronics

SteppIR Antenna and Station Integration (Update)

2022-01-24 Ken Cechura

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…

Radio and Electronics

Mini1300 Antenna Analyzer: Initial Impressions

2022-01-19 Ken Cechura

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…

Radio and Electronics

SteppIR Antenna thoughts

2021-11-22 Ken Cechura

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…

Radio and Electronics

Icom 7300 Front Panel Interface Box

2021-09-23 Ken Cechura

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…

Radio and Electronics

Semi-Smart 12V Power Panel: Design Details

2021-07-26 Ken Cechura

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……

Radio and Electronics

Semi-Smart 12V Power Panel: Initial Design

2021-07-23 Ken Cechura

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…

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An update to the box for going places

2026-06-14 Ken Cechura
APRS Radio and Electronics

APRS Vol 5. The Saga Continues

2025-12-29 Ken Cechura
APRS Radio and Electronics

Revisiting APRS… vol 4.

2025-12-27 Ken Cechura
APRS Radio and Electronics

APRS – Update 2, or is it Vol 3?

2025-12-25 Ken Cechura

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