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AMPRNet Public IP Space

For those who are unaware, public IP space (44.0.0.0/8) is available to licensed amateur radio operators.  This space is available in standard CIDR blocks (/29, /28, /27, etc).  It can be utilized in one of four ways: Radio Tunnel Direct Children For a detailed description of each of these types, please visit the AMPRNet website: …

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NF9K ARRL Technical Specialist Report – December 2016

Received an email comment via my website looking for assistance in programming a 33cm Motorola MTX9250.  After a primer on topics such as personalities, CPS modifications for ham band use, he was off to the races with his shiny new HT! Finished building and testing a Raspberry Pi based EchoIRLP node for Steve Jones (W9SMJ). …

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NF9K ARRL Technical Specialist Report – November 2016

November was not as radio active due to vacation, the Thanksgiving Holiday and an impromptu business trip to South Carolina for work.  However, I did manage to generate some activity, so here goes:  Obtained four TYT MD-380 DMR radios, flashed them with the MD380Tools firmware, using a Raspberry Pi, and got them shipped up to …

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NF9K ARRL Technical Specialist Report – October 2016

I received a new firmware to test for the the scan bug that I reported in BridgeCom’s 220Mhz Mobile.  Sadly, I haven’t had a chance to apply the new firmware, but hope to shortly.  From reading the info provided, they’ve fixed part of the issue I reported, which was while in memory scan, power cycling …

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NF9K Technical Specialist Report – September 2016

Received a website comment from a local amateur looking to use DMR to communication back to Franklin, IN, once he moves to Texas. I was able to help him by by explaining how the various DMR Network inter-connect and what TG’s he’d likely be able to find in common. Responded to another website comment and helped a local …

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BlueDV – DMR/DSTAR Interface

The BlueDV is a very small and portable DMR/DSTAR interface.  The whole piece is actually a combination of two parts, the BlueDV adapter and the DVMega board.  More details on the individual pieces later.  What appeals to me most about this solution is the size, and the interface, which runs on an Android phone or …

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Tytera MD-380 Hack (MD380Tools) – Updated (Project moved to GitHub)

By now, everyone has heard of the hacked Tytera firmware, but application of it was tricky at best.  Recently I discovered a script that when run from a Raspberry Pi, makes the process painless. The script was written by WH6AV.  I ran mine on an original Pi 2, because that’s what I had handy.  The compile …

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NF9K ARRL Technical Specialist Report – August 2016

Built a couple of different Raspberry Pi setup’s for use with a DV4Mini.  I utilized the official 7″ Pi touchscreen and two different stands.  One of the stands required modification of the config.txt file in the /boot partition to flip the screen 180 degrees.  The second stand did not require any modification.  Next was the task …

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NF9K ARRL Technical Specialist Report – July 2016

July was an interesting month.  I was able to do some work, but traveled to SSF for work the last week of the month.  I took two HT’s along with me giving me Analog, P25 and DMR UHF capabilities.  It was a good trip, but not a lot of time for playing around. I was …

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A good read….

ARRL Lab HT Testing I know they are cheap and very tempting to those who may be financially challenged.  However, the old adage of, “you get what you pay for,” has never been more true.

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