ThunderBolt GPS

Thunderbolt Display 2022 Update

January 1, 2022 by Adam

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 … Read more...

Amateur Radio ThunderBolt GPS

Fixing Trimble Thunderbolt -55° Temp Error

January 30, 2020 by Adam

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°.

The temperature sensor is a … Read more...

Amateur Radio ThunderBolt GPS

Thunderbolt Display 2020 Date Fix

January 7, 2020 by Adam

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 … Read more...

Amateur Radio ThunderBolt GPS

Thunderbolt Display firmware files now available

October 8, 2017 by Adam

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/

Amateur Radio ThunderBolt GPS Video

VK4GHZ Thunderbolt GPSDO Display firmware fix

August 28, 2017 by Adam

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.

These date … Read more...

Amateur Radio ThunderBolt GPS

ThunderBolt GPSDO Rebuild

January 10, 2014 by Adam

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.

Now that a larger and … Read more...

Amateur Radio ThunderBolt GPS

Lady Heather and ThunderBolt Display

November 11, 2013 by Adam

Post by N1JR » 08 Jun 2012, 21:03

I sometimes use “Lady Heather” monitor software on my computer for my Thunderbolt.
I have noticed that when I do, after a … Read more...

Amateur Radio ThunderBolt GPS

ThunderBolt Display documentation updated

September 10, 2013 by Adam

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

Amateur Radio ThunderBolt GPS

ThunderBolt Display now shipping

September 9, 2013 by Adam

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.
More … Read more...

Amateur Radio ThunderBolt GPS

ThunderBolt Display video

September 8, 2013 by Adam

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

ThunderBolt GPS

ThunderBolt Display orders closing soon

August 7, 2013 by Adam

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 … Read more...

10 GHz 23cm Amateur Radio Microwaves ThunderBolt GPS

10 MHz GPSDO

August 7, 2013 by Adam

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

It provides an accurate 10MHz reference for the transverter Local Oscillator PLLs.
The existing Thunderbolt mounting holes will be utilized, and … Read more...