ERT Projects – Active

This is the gateway to all projects run by the ERT. Project pages contain original documents and new documents relating to the ongoing work of the project teams.

GEE Mk.I recreation

This is a fully functioning recreation of the airborne part of the world’s first hyperbolic radionavigation system.  It will be possible to demonstrate its capabilities compared to the common Mk.II.

GEE Mk.II Ground System restoration

The airborne part of the GEE Mk.II system was adapted for ground use, probably as part of GEE-R and for training purposes. It was known as “Apparatus Kit Type 30″. This project will build a fully functional system for demonstration purposes.

H2S Mk.IIB restoration

The ERT has most of an original H2S Mk.IIB system.  The scanner and its feed connector are currently missing, however we this is the most complete system that we know of in the UK.

H2S Mk.IIB replica build

This project aims to make a full replica of the original H2S system, which can be demonstrated in some manner (yet to be determined).

ERT Projects – on standby

These are projects for which we own some hardware, but lack either some critical part of the equipment or (more usually) sufficient effort to take them forward.

R1294 Receiver restoration

This is the earliest known British designed and built receiver cover the frequency range 500 – 3,000Mc/s for intercept use.  We have an original example, needing restoration.

UHF Mk.II Special Receiver restoration

This is the earliest known British designed and built receiver covering the frequency range ????. Prior to this unit, various American made receivers were used for intercept purposes.   The example we have will need a very thorough restoration.

Wireless Set No.42 restoration

A WWII era British designed field transceiver, which demonstrates a string of new concepts in British radio design, including cast chassis, frequency modulation, simpler operation using discrete frequency channels, ease of servicing and flexible system deployment. The example we have needs thorough restoration. Our example is believed to be the only surviving one in the UK (two known in Canada, one in Europe).