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KC9UMR

Ramblings of yet another nerd...

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Latest Post

Day 13: El Reno, OK to Shamrock Texas – the last day Day 12: Tulsa to El Reno, OK Day 11: several weeks later – Springfield to Tulsa Day 10: Rolla to Springfield, MO Day 9: (Joliet) to Rolla, MO
Radio and Electronics

Another Shack Reboot

2019-07-06 Ken Cechura

So – after moving, i was presented with a much smaller space to call my shack. Since my wife was working fomr home, we had to build her some office…

Radio and Electronics

Motorola R100 External Controller Interface

2019-04-24 Ken Cechura

Another “older” project I want to post now, just for others to benefit from my learning experience… For years, I’ve wanted a repeater to tinker with. Back as far as…

Radio and Electronics Soundcard Interfacing for HF Digital Modes

Soundcard Interface – A Different Approach… Part II

2019-03-25 Ken Cechura

Well, I went on the trip…. and I couldn’t operate a single bit. The noise floor in the hotel was S9+… on ALL HF bands. It appeared to be the…

Radio and Electronics Soundcard Interfacing for HF Digital Modes

Soundcard Interface – a different approach

2019-03-09 Ken Cechura

I haven’t given up on my custom PCB for a soundcard interface, because it’s a labor of love…. the first board has been populated, but needs some troubleshooting. I suspect…

Radio and Electronics

Icom 706 mkIIg IF tap

2019-01-06 Ken Cechura

just my experience using the PAT IF buffer from SDR-KITS.COM. power pick off point… 7.8VDC on recieve First IF tap point and coax connection to the PAT board. Note the…

Radio and Electronics

From my files: an older kludge… but it works

2019-01-06 Ken Cechura

I was headed out to a cub scout campout, and needed an antenna for Jamboree On The Air (JOTA). I needed something flexible, robust, and visible. After digging in the…

Radio and Electronics

Ethernet in an RF Environment

2018-12-10 Ken Cechura

so…. an interesting development. The regional command vehicle that I help to support has been chasing down some network gremlins ever since it went to a heavily networked configuration. We’ve…

Radio and Electronics

Python Programming… Pt 2

2018-11-03 Ken Cechura

I noted during some experimenting that my plots all seemed to have an upward slope – then I noticed, my Y axis was totally random… strange behavior to say the…

Radio and Electronics

Python – just what i needed, another project

2018-11-02 Ken Cechura

So, this started out as an exercise to see if could get Microsoft Excel (through VBA) to directly talk to my Uniden scanner. I’ve done this in labview quite a…

Radio and Electronics Soundcard Interfacing for HF Digital Modes

Soundcard Interface: Design For EMI

2018-09-14 Ken Cechura

ok – this should be the final post…. I did one more batch of updates… this time I designed for EMI. Not only did I ensure I had full isolation…

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You missed

ROUTE66

Day 13: El Reno, OK to Shamrock Texas – the last day

2026-08-21 Ken Cechura
ROUTE66

Day 12: Tulsa to El Reno, OK

2026-08-21 Ken Cechura
Uncategorized

Day 11: several weeks later – Springfield to Tulsa

2026-08-21 Ken Cechura
ROUTE66

Day 10: Rolla to Springfield, MO

2026-08-21 Ken Cechura

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