Fixing Trimble Thunderbolt -55° Temp Error
This Trimble Thunderbolt 10 MHz GPSDO (purchased off eBay) has always reported temperature incorrectly. Everything else was fine, just the temperature being reported as
Amateur Radio
Thunderbolt Display 2020 Date Fix
This v2.3 firmware fix addresses the date translation error which became apparent on January 1, 2020. Due to unforeseen coding bugs in the
Nextion for K3NG Rotator Controller Update
VK4GHZ Nextion for K3NG Rotator Controller now gets a version for the NX8048K050 5.0″ Enhanced touchscreen. The 5.0″ screen is nice! Below are some
IC-9700 GPS-locking mods & warranty issues
Icom’s IC-9700 has been favorably received by consumers, except for the half-baked 10 MHz “Reference” locking scheme. It was thoughtful of Icom to provide
Eltek Flatpack2 HE 48V/2000W Controller
An Eltek Flatpack2 HE 48V/2000W rectifier is being used as the power supply for a 23cm 600W LDMOS Power Amplifier project. This touchscreen controller
Eltek Flatpack2 controller PSU
A reliable 5V power supply is required to power a controller for an Eltek Flatpack2 48/2000 HE rectifier being used as the PSU for
FS1000A 433 MHz transmitter – L2 missing
I recently purchased some of these low-cost 433 MHz SAW transmitter and receiver pairs for a current project. The receivers work as advertised. The
(SOLD) For Sale Icom IC-910H UX-910 CR-293 UT-106 MB-23 in VGC
For Sale Icom IC-910H, comes with the following: • UX-910 23cm 10W module • CR-293 High Stability unit • UT-106 DSP unit • MB-23
(SOLD) For Sale: 150 Watt 23cm Power Amplifier
Based on the highly regarded PE1RKI power amplifier module, this is a fully assembled and tested – ready to use – 150 watt 1296
Fixing a Diamond X-500 2/70 antenna
My 20 year old Diamond X-500 2/70 antenna stopped working earlier this year. Not wanting to muck around, I simply ordered a new X-700
Thunderbolt Display firmware files now available
PICAXE .bas files have now been added to the main article. Full details on how to upgrade your VK4GHZ Thunderbolt Display, and ThunderBolt Commander
VK4GHZ Thunderbolt GPSDO Display firmware fix
I have a fix for the Thunderbolt GPSDO date error! The VK4GHZ Thunderbolt Display no longer uses the Year, Month and Day data fields
Weller WTCPT soldering iron switch mod
This simple modification replaces the standard rocker switch with an illuminated type rocker switch that is a drop-in replacement. One annoying thing about the
5/16″ SMA Spanner Mods
Doug, VK4OE, shows us some handy modifications to a 5/16″ combination spanner to make it more user friendly when dealing with SMA connectors in
3.3 GHz FPV Cloverleaf Antenna
I was curious about how much bigger a 3.3 GHz cloverleaf antenna would be, compared to a 5.8 GHz antenna, to see if it
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