Close

181 Results for "amateur radio"

  • Log 0x06

  • I just completed a first successful DMR call with a local radio amateur via the local relay :)Next thing to do: measure transmission power over frequency to estimate the bandwidth of the front end!
  • SDR radio telescope

  • It's been a lifelong quest to find a practical use for ham radio.  There was the idea of listening to the space station.  There was trying to receive GOES satellite data, which the internet has proven to be extremely hard.  15 years ago,...
  • Crossfire Radio and HAM Licensing

  • Recently, I received the first part for this project, a Crossfire radio system (thank you ECE depot at the U of M!). This is a long range radio link with up and down telemetry. This radio, unlike normal RC links (2.4GHz), operates on 900MHz (@ up to...
  • Get Licensed!

  • To legally operate the oGPR in the United States (for non-commercial use), you will need a Technician Class (or better) amateur radio license. The 35 question exam is not difficult if you study. All 426 possible questions are published. Ron Hashiro has...
  • HACKLET 19 – HAM RADIO

  • Amateur, or ham radio operators have always been hackers. For much of the early 1900′s, buying a radio was expensive or impossible. Hams would build their own rigs, learning electronics and radio theory along the way. Time moves on, but hams keep hacking....
  • Preparing a Prototype

  • We've added hardware designers and two software developers.  Would you like to be part of the initial testing?  Participants will receive a prototype board but will have to supply their own radios and internet access.  (Baofengs are available...
  • 100mW 70cm BeeLine GPS

  • Hello, there! As Keeley previously mentioned, I am going to be posting about the KickBox we received in late January. Using our KickBox money, we purchased BigRedBee's 100mW 70cm BeeLine GPS to help us with tracking our full scale rocket during its flight....
  • OH6UAV

  • One of the goals of this project has been accomplished, I'm now a licensed radio amateur! I got my license over a year ago and have a lot of fun on the HF bands. My current DX record is a contact to Suriname from Finland, ~9000 km on the 15m band with...
  • Follow me - part 1

  • The goal for 2018: Getting my robot to follow me. How can this be done? I checked a few options for this: Visually e.g. with OpenCVs Find-Object or OpenCVs camshift. However after playing with them I haven't found them robust enough. Maybe...
  • Antenna Design

  • A Bluetooth antenna is pretty easy to find and purchase, and many designs (like the Adafruit breakout we'll be using in the simpler version of the core device build) use an antenna printed on the PCB. A 433MHz antenna is even easier, as it is an amateur...
  • Does it fit?

  • I was dropping off a H.V. probe to an amateur radio friend of mine. He was rebuilding a Heathkit SB200 amplifier. I had recently done the same.  In our conversation we started discussing Raspberry Pi. He had killed one a Pi 4B (4GB) by putting 9V...