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Category Archives: Hardware
9600 baud packet on a Kenwood TK-840
The Kenwood TK-840 is a nice commercial UHF radio that is starting to go for $50-$100 on eBay due to the fact that it is not narrow-band capable. It is happy in the ham bands, has a good screen, excellent … Continue reading
Update your FT-817, FT-857, or FT-897 with the new 60 meter channel
In the US starting in 2003, amateurs have had a secondary allocation of five specific channels in the 60 meter band. Unlike most other allocations, these are restricted to phone emissions in upper sideband, with a maximum of 50 watts … Continue reading
Q89 Compressor Modification
One of the first things you need when you start into off-roading is a good compressor. This is because you air down your tires each time before you go, and have to air them back up before you drive home. … Continue reading
Posted in Hardware
Kenwood TK-380 Self-Programming Modification
I recently purchased a Kenwood TK-380 UHF handheld radio on eBay. This is a commercial UHF FM transceiver used by public safety organizations. It will do 4W output, narrow or wide band transmission, and conventional or trunking operation. This radio … Continue reading
Custom UPS External Battery Bank
When we moved into our current house, I had a Matrix 5000 UPS that I used to power my server room. This 5kVA unit was a really impressive device that ran on 220V and could have its “brain” replaced without … Continue reading
ID800 Magnetic Head Modification
The ICOM ID-800 is a very common D-STAR radio, and for good reason: it includes the digital functionality, dual-band operation, and a remote-able head. It’s much easier to mount a small head unit in view than an entire radio, with … Continue reading
Roku Player
I recently received a Roku Netflix player as a gift. I have always been skeptical of the Roku player and the quality of the picture that they could possibly deliver over someone’s network connection of unknown quality and load. When … Continue reading
Posted in Hardware
Embedded D-RATS
For a while now, I’ve wanted to see what interesting things I could do with a microcontroller by teaching it how to send and receive D-RATS packets. I bought an Arduino Diecimila a while ago and played with it a … Continue reading
Driving a 4-Bit LCD with an Arduino
I received my Arduino Diecimilia today. Man, what a cool little device. I ordered it last weekend with the intent of using it to learn about programming microcontrollers, in hopes of making some neat toys. One of the first things … Continue reading
Posted in Hardware
The death of a legend
On Tuesday, I lost a good friend. Not only was he hard-working, but also extremely dependable in the face of adversity. He had been with me longer than any of my other friends; some had come and gone, but this … Continue reading
Posted in Hardware