2021 ~ A Year Moving Forward. Strap In! Your Next Rig will be an SDR Based Transceiver!
Time to Smell the New Rose -- An SDR!
March 27, 2021 ~ Total HB SDR XCVR
- Problem #1 despite what ever you do you cannot change the screen resolution and you are stuck with the default.
- You cannot simultaneously use the small display and the external HDMI screen.
March 21 ~ Small Footprint SDR
The rig is a Soft Rock Ensemble (40-30-20M) at 1 watt. All else a $14 Sound Card and the RPi3 + Treedix Display. Imagine this on a park bench this summer -- A real Chick Magnet!
March 18, 2021
SDR XCVR "Al Fresco" with Display. A Totally Homebrew 5 Watt SDR!
Just as time moves forward, which is unstoppable, so is what is happening within the homebrew community. I know of at least 5 major groups who are working in earnest to deliver a homebrew SDR transceiver including several that will be unveiled before Independence Day. Think of Giants like Bob Larkin (one of the EMRFD guys) and of course Farhan who are dipping their oars into the SDR waters. This takes it to a new level because of who is doing this with their technical expertise and their well known accomplishments.
This is the premise of this post. On the left we have a homebrewed CW Transceiver with a superhet receiver including a 3 Pole Crystal Filter and a Crystal Controlled 1 watt Transmitter. All of this goodness is but a few boards on a wooden plank! But it is still limited by a single rock and a single BW of the Crystal Filter. This does not raise the excitement level very much (and it didn't with the CW club).