ThunderBolt GPS

Thunderbolt Display 2022 Update

January 1, 2022 by admin

This v2.4 firmware update deletes support for years 2020 and 2021 (obviously no longer required!), which now creates space in the PICAXE28X2’s limited memory for date support to end of 2035.… Read more...

Amateur Radio ThunderBolt GPS

Fixing Trimble Thunderbolt -55° Temp Error

January 30, 2020 by admin

This Trimble Thunderbolt 10 MHz GPSDO (purchased off eBay) has always reported temperature incorrectly.

Everything else was fine, just the temperature being reported as -55°.… Read more...

Amateur Radio ThunderBolt GPS

Thunderbolt Display 2020 Date Fix

January 7, 2020 by admin

This v2.3 firmware fix addresses the date translation error which became apparent on January 1, 2020.

Due to unforeseen coding bugs in the WNRO (Week Number Roll Over) fix released in 2017, 01-Jan-20 was incorrectly displayed as 32-Dec-19. … Read more...

Amateur Radio ThunderBolt GPS

Thunderbolt Display firmware files now available

October 8, 2017 by admin

PICAXE .bas files have now been added to the main article.

Full details on how to upgrade your VK4GHZ Thunderbolt Display, and ThunderBolt Commander can be found at:

http://vk4ghz.com/thunderbolt-gpsdo-display-firmware-fix/… Read more...

Amateur Radio ThunderBolt GPS Video

VK4GHZ Thunderbolt GPSDO Display firmware fix

August 28, 2017 by admin

I have a fix for the Thunderbolt GPSDO date error!

The VK4GHZ Thunderbolt Display no longer uses the Year, Month and Day data fields sent from the Thunderbolt.… Read more...

Amateur Radio ThunderBolt GPS

ThunderBolt GPSDO Rebuild

January 10, 2014 by admin

A Trimble ThunderBolt GPS Disciplined Oscillator (GPSDO) is the main 10 MHz station reference, and was originally built into a dual-band 2.4/3.4 GHz transverter system.… Read more...

Amateur Radio ThunderBolt GPS

Lady Heather and ThunderBolt Display

November 11, 2013 by admin

Post by N1JR » 08 Jun 2012, 21:03

I sometimes use “Lady Heather” monitor software on my computer for my Thunderbolt.… Read more...

Amateur Radio ThunderBolt GPS

ThunderBolt Display documentation updated

September 10, 2013 by admin

ThunderBolt Display documentation has been updated to reflect the subtle changes of the V3 PCB.

Please note:

Alarm LED output polarity is different to the previous V1 and V2 PCBs
Pads for 5V output (for powering ThunderBolt Commander) is now located towards the edge of the PCB.

Amateur Radio ThunderBolt GPS

ThunderBolt Display now shipping

September 9, 2013 by admin

As of this afternoon, 25 of the batch of 50 units have already been paid for, 10 of which have now been posted overseas from orders received last week.… Read more...

Amateur Radio ThunderBolt GPS

ThunderBolt Display video

September 8, 2013 by admin

A new video takes a look at what the ThunderBolt Display displays!

ThunderBolt GPS

ThunderBolt Display orders closing soon

August 7, 2013 by admin

Expressions of interest in obtaining a ThunderBolt Display will be closing soon.

This third production run will be the last.

Please contact me, if you would like to obtain a ThunderBolt Display, and indicate what type of LCD option you would like.… Read more...

10 GHz 23cm Amateur Radio Microwaves ThunderBolt GPS

10 MHz GPSDO

August 7, 2013 by admin

Here’s a rundown of my Trimble Thunderbolt GPSDO project.

It provides an accurate 10MHz reference for the transverter Local Oscillator PLLs.… Read more...

Amateur Radio ThunderBolt GPS

Mounting a ThunderBolt Display

August 7, 2013 by admin

Unit #1 – Within Transverter enclosure, no screws visible from front panel

This is the part I have been dreading… actually mounting the display, and preferable in a strong manner that is invisible from the front.… Read more...