Repeater Logic

TFT

Amateur Radio Repeater Logic

Telephone: - 01546 510355 Mobile: - 07748 988576 logic@tftransport.co.uk

TFT can supply amateur radio repeater logic drawings, blank printed circuit boards, and complete kits or complete built and tested PCB assemblies for the HOZ repeater logic design. We can also supply any individual part used on the HOZ logic design and we also offer a programming service. Using the GD4HOZ logic design with a receive decode CTCSS circuit added by Bob Wilkinson G3VVT, the design has been further refined and put on a PCB by Pete Gaskin MM1FEO.

TFT, and with the agreement of GD4HOZ, provides this technical information in the interests of promoting the Amateur Radio hobby, and not for commercial gain. All parts are provided at cost price plus a 15% handling charge only. Due to our bulk purchase on many items, we can often provide parts at cheaper prices than can be obtained directly from suppliers.

Now used on many 2m and 70Cm repeater sites throughout the UK (GB3LD, GB3CD, GB3RC, GB3AA, GB3LF, GB3GD, GB3SS, GB3RC, GB3ND, GB3DN, GB3TR, GB3WW, GB3LT & GB3LG to name just a few), the HOZ design has proved both reliable and cost effective.

We are now supplying the PIC16F74 instead of the PIC16C74 that the HOZ logic was originally designed with. This Flash chip is not only cheaper than the one time programmable chip but can be re-programmed.

Prices

Blank PCB £25.91

Complete Kit including un-programmed PIC Chip £150

Assembled & Tested PCB £190

PIC Source code change & Programming for specific repeaters £20

PIC Programming £5.00

Completely assembled tested and programmed for your specific repeater £220

All prices are plus postage and VAT

The operators manual, circuit diagram and parts list are available here for free download, the source code is available free upon request.

Hoz Manual Circuit Diagram & Pye F494 connections Parts List PCB Legend