Not your father’s radio! I’ve started with a couple of new radios for this round of Ham Radio projects. A Radioddity G90 and their GD-88. As a fan of SDR, I’m using digital modes with both. FT8 on the G90 and DMR on the GD-88. I love the way FT8 cuts through the noise when signal are low. But I can’t yet say I’m a fan of DMR. It seems like a radio build by a government committee that didn’t know anything about it. »
If you need to program your HT for a local area, look no feather than RepeterBook.com. After creating an account, you can build a list of repeaters based on your location and export it to many common file formats, including Chirp and CSV. W5TSU »
For the W5TSU.net:8030 receiver I build a broadcast band filter. This should front end overload and intermod created by these stations and allow for better Ham band receiption. I also wanted to learn how to build my own coils. I found a design at the vk3il blog. This filter was modeled with the ELSIE (free version). It is a 7-pole Chebychev filter with cutoff frequencies of 1.7MHz. I started by winding some coils from 22, 26 and 30 awg magnet wire. »
This is my grandfather’s ham license from 1952. My mother told me stories of her and her father lessioning to the radio. Him teaching her morse code. I picture in my mind, mon sitting on her fathers lap and her talking to some ham on AM. My mother tough me my name in code when I was five. – .- .-. -.- W5TSU »
I’m fascinated by the WSPR (http://wsprnet.org) network and found out you can build a transmitter station with an Raspberry Pi. So, because I have a few Raspbery Pi comptuers setting about doing nothing, it’s time to put one to work. The code for this is at (https://github.com/JamesP6000/WsprryPi). WSPR net has some documentation on it (http://wsprnet.org/drupal/node/5353). The output from the RaspPi is a square wave so lots of filter is needed. (http://www. »