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Solar heated Spa Pool (hot tub)
I’ve managed to enjoy reasonably priced electricity at my home over the last few years but prices are now going UP, UP, UP!
Read More »Beer Fridge Repairs
It took almost a week, but the parts arrived from DigiKey Because I was using an exact replacement, it was an easy job to solder in the new part. I added extra solder to the PCB traces. The…
Read More »Broken Beer Fridge!
My beer fridge that chills three kegs of beer broke overnight! An urgent fix is on the cards!
Read More »Laird RG191 gateway on TTNv3 (AU915)
Before the advent of cheap(ish) LoRaWAN gateways, the most cost effective option for me was to put a Laird RG191 in a waterproof enclosure, add PoE input and an external antenna connector. These gateways worked fine on The…
Read More »RFE TPA-PAF Slant 45 Mod
Here’s how to modify an RF Elements Twist Port Adapter from H+V to Slant 45. Note that this change DOES NOT change an attached antenna from H+V to Slant 45, it just corrects the orientation of the Twist…
Read More »RFE Ultrahorn Slant 45 Mod
RF Elements make an excellent lineup of horn antennas with a twistport waveguide antenna. Unfortunately they come out of the box in a H+V (Horizontal + Vertical) configuration. Slant 45, or X polarity simply means that the H+V…
Read More »New RTK GPS Base station
I’ve been running an RTK GPS Base station and feeding the data to rtk2go.com since early 2018. I was initially using a UBlox Neo-M8T which only worked on L1 frequencies, but earlier this year I upgraded it to…
Read More »U-Blox LEA-6H Precision
This is one of the many tests I’m doing to compare GPS/GNSS receivers. I’ve had this u-box LEA-6H unit for about five years. It was the GPS that came with the 3D Robotics ArduPilot that I’ve been using…
Read More »How precise is a circa 1999 Garmin eTrex?
This is the first of the tests I’m doing to compare GPS/GNSS receivers. I got my first GPS unit, a Garmin eTrex in 2001 and I used it to Geocache. It’s sat unused for over 12 years, but…
Read More »Measuring GPS (GNSS) Accuracy and Precision
With the recent technological advancements, I’ve recently become interested in RTK GPS and decided it would be fun to compare all the different GPS/GNSS (Global Navigation Satellite System) receivers I own. I ultimately plan to see how they…
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