The essence of time-nuttery is measuring the stability of clocks and oscillators. Allan Deviation (“ADEV”) is the statistic most commonly…
A lot of us use Anderson PowerPole connectors for DC power distribution. There’s a nearly universal standard to use red…
Now that I have my GPS antennas permanently mounted on my tower, I’ve done a first set of measurements to…
I’ve been looking for an antenna switching solution to use in my new ham station. I have several antennas for…
I’ve recently become interested in dual frequency GPS receivers – the kind the are used for land surveying and geodetic…
I’m posting this mainly because Google didn’t turn up any help when I queried about using the USR-IOT serial port…
I couldn’t find a nice graph showing the timing performance of a single-frequency, sawtooth-corrected, pulse-per-second output from a GPS. So…
Each year at the Dayton Hamvention, the folks at Mini-Circuits have a bunch of odds and ends they sell very…
It’s well known that just about all oscillators drift, or “age”, in frequency with time. In crystal oscillators, the most…
One of my Gnuradio projects is a tool that records IQ data covering 375 kHz — which is enough to…