The Big Ben GPS Time Server, tested by the National Physical Laboratory,Teddington,Middlesex,England, in January 2022.

Big Ben Time Server 30 Day Free Trial- £20 to register using Paypal button, then email info@bigbensoftware.com for username and password
Step 1 Download the K-Tron GPS Active X control and run SetupStep 2 Download the 30 day trial Step 3 Install VLC Media Player


NPL Anthorn MSF Time Signal Decoder 30 Day Free Trial- £20 to register using Paypal button, then email info@bigbensoftware.com for username and password
Download NPL MSF Time Signal Decoder Clock
Long-wave radio signals carrying comprehensive information on the time and date are broadcast across Europe and North America. These signals can be received within a radius of about 1,500km from the transmitter.
Galleon Systems offer a range of products to receive and decode these atomic clock time signals for use in hobby or OEM projects.
The NPL MSF Time Signal Decoder Clock is PC time synchronization software that synchronizes Windows computers to the time received from a DIY built MSF kit or Galleon MSF receiver.
It’s getting more difficult to find a PC with a native RS-232 serial communication port, most PC's or laptops nowadaysinterface using a USB.
The NPL MSF Time Signal Decoder Clock will use transmitted date and time data received from the MSF receiver.
https://www.galsys.co.uk/modules/mcm-rs232-microcontroller-decoder-module.html
- Supports Windows 7, 8, 8.1 and Windows 10
BIG BEN TIME SERVER
Big Ben Time Server aka BIGBENGPSTIME released 11th
November 2015. The low cost alternative to commercial GPS Timesync systems costing thousands of Dollars, and just as reliable. Designed for international use. We have enquires from major international companies, throughout the UK, USA and
China. Only £20 for the software whatever the use, commercial or non-commercial. Petronas who own the Humbly Grove Energy site in Hampshire UK, use BIGBENGPSTIME to provide a reliable precision time reference to the Gas Plant SCADA & PLC control system.... Note: To set your PC time, later versions of Windows require an Administrator Account.This can easily be setup in Windows Control Panel User Accounts.
Time Signal Test Equipment
To prove how accurate the Big Ben Time Server really is..
We purchased a Galleon Systems MSF time receiver.
The results were very pleasing. Precise timing, and the computer stays on time.