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Club Construction Projects

From time to time, the club undertakes a construction project in which many members take part and support each other.

Project 5 - Top band DF Receiver

Using cheap, imported DF receivers that was designed for 80m this project details that modifications that were undertaken to allow them to be used with the club’s top band direction finding contests

Follow this link for ongoing information about this project.

Project 4 - A 40m Software Defined Receiver

This realatively cheap and easy to make receiver feeds into a PC soundcard.

Initial information can be found by following this link.

Project 3 - A Slim Jim antenna for the 2m band

A Slim Jim antenna is realatively cheap and easy to make. They normally provide a significant improvement over the "rubber duck" type of antenna that is fitted to 2m handhelds.

 

Further information and full constructional details can be found by following this link.

Project 2 - 80m QRP SSB Transceiver

Our second project is the MAKARS80 transceiver, with optional CW adaptor.

The transceiver has:

  • 5 watts output
  • true SSB (not DSB) with crystal filter
  • superhet receiver
  • all components mounted on a single PCB
  • metal case

The transceiver kit was designed by G6ALU of the Milton Keynes Amateur Radio Society. However, we are currently proposing to use a locally designed AF oscillator as the CW adaptor.

Follow this link for ongoing information about this project.

Further details of this rig can be obtained from the Kit Radio Company (www.radio-kits.co.uk)

Project 1 - Direction Finding Receiver

In recent years, the club has held mini Direction Finding contests in the school ground using a small, low powered top band transmitter. Members used a variety of receivers to hunt the transmitter.


The DF transmitter.

In order to promote construction, a small battery powered direct conversion receiver was designed and built by a number of club members.

Further information and full constructional details can be found by following this link.

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