Amateur Radio Articles - Page 2 of 3 - Fort Purbrook Amateur Radio Club (Hampshire)

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Here are articles written by club members (both past and present) to pass on knowledge about our hobby, their homebrew experiments, and other topics.

Spectrum Communications 4m Transverter

by Mick M0GWD | 1 Jul 24 | Articles, Homebrew, Kit Builds, Reviews

This kit is the Spectrum Communications TRC4-10sl 4m Transverter, designed to transvert a 10m (28MHz) signal to 4m (70MHz). It has an output of approximately 25W due to the inclusion of a separate PA board and a maximum input of 5W. Minimum input is 500mW. This is a really nice kit to build using quality…

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Wolfwave Audio Processor

by Dean M7SUX | 28 Jun 24 | Audio Filters, Reviews

A Review – and a Relief. I have a type of brain that shuts down when too much information goes into it. White noise, crackles, burps and ker-chunks from amateur radio transmissions can make it difficult-to-impossible for me to focus. In such a mental-state, I cannot hear what my radio is receiving. I used to…

CWTouchKeyer’s P3K Touchkey (Kit Build)

by Mick M0GWD | 24 Jun 24 | CW, Homebrew, Kit Builds, Reviews

This is an interesting project for the CW enthusiast and home constructor. Bought from CWTouchKeyer in the USA, the P3K is a Touchkey kit that is supplied as a small PCB plus the appropriate components. There are lots of other versions available, too. The kit is constructed and has to be installed into a small…

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HB-1B 4-band QRP CW transceiver (YouKits)

by Peter G4NKX | 24 Jun 24 | CW, QRP, Reviews

First impressions of the YouKits HB-1B. Small and compact 152x85x35cm. Nice, clear blue digital display. Internal Keyer (adjustable speed). Auto CQ calling. 30 Memories. Tune Function. Adjustable tuning rates. RIT Control. Attenuator for strong signals. Internal 12V Lithium Ion Power (Optional). Charging Facility (Optional). I really liked the look and sound of this radio as…

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What is QRP?

by Andy G7UHN | 21 Jun 24 | QRP

QRP is the term referring to low-power amateur radio operations, typically using a transmission power of 5W or less. QRP comes from the Q-codes used in Morse code communication, meaning “reduced power”. The reasons for operating a low-or-reduced-power transmitter may be born out of space constraints at home or perhaps a need to lighten the…