14th November 2010
A relatively simple 11 transistor FM broadcast receiver using pulse-integration discrimination.
23rd May 2010
An experimental solid-state Fremodyne AM/FM Receiver for VHF.
12th May 2010
More compatible receivers and a few circuits related to the system.
24th April 2010
The guts of an AFL Sports Ears receiver, what you get for your money and how to build or buy your own compatible receiver for significantly less.
14th January 2009
Another interesting Burkhard Kainka receiver circuit.
7th December 2008
Burkhard Kainka's super-regenerative FM receiver from Elektor September 2007.
25th October 2008
A simple timber jig for winding 100 mm basket weave coils for MF work and investigations into coil Q and the Proximity Effect.
4th February 2008
I add a front-end and a box to the 30 Metre Autodyne Receiver
Parent article: 30 Metre Autodyne Receiver.
27th January 2008
An interesting and quite useful autodyne receiver that phase locks the remote RF signal.
Contains 1 sub-article.
18th December 2007
I put the regen-o-reflexive receiver on 31 metres and put it in a box.
Parent article: Regenenerative-Reflexive Receiver.
16th December 2007
Some experiments with a tuned receiving loop for HF.
4th November 2007
An interesting detector idea from PA2OHH.
Contains 1 sub-article.
8th September 2007
A simple minimum-component super-regenerative receiver for the FM broadcast band.
17th July 2007
A regenerative receiver based on an emitter-coupled oscillator topology of elegant simplicity but fairly average performance.
14th July 2007
Experiments with Charles Wenzel's "Passive Aircraft Receiver" circuit.
Contains 1 sub-article.
19th May 2007
Some experiments with the Foster-Seeley Discriminator and the Ratio Detector.
24th March 2007
A fairly small MK484 based receiver for the AM broadcast band.
17th February 2007
I get the TX talking to the RX and true First-Light for the Receiver.
Parent article: "2007 80m Homebrew Challenge".
18th November 2006
My go at making a JF1OZL-style spectrum analyser for 40 metres.
11th November 2006
A quick folded dipole antenna for 3 metres.
13th August 2006
My implementation of Francis Hall's "Euro Set".
6th August 2006
A simple 3-transistor regenerative receiver from the MW broadcast band.
10th May 2003
A new VHF super-regenerative receiver designed specifically for the FM broadcast band. The design is IC-free, built from bipolar and field effect devices only.
14th April 2003
Parent article: UHF Log-Periodic Array.
7th March 2002
A prototype implementation of the Charles Kitchin N1TEV super-regenerative receiver featured in the ARRL handbook.
25th November 2001
Harking back to my old days as a FM broadcast pirate, I whipped up this very simple 500mW transmitter.
25th November 2001
A simple tuned-loop I threw together for DFing a local noise source that has been effecting my father's nightly listening to 2BL 702 kHz.
Contains 1 sub-article.
27th October 2001
A classic 6dBi LPA design for the Australian UHF TV broadcast bands IV and V. Initial tests indicated excellent pattern performance with ultra deep nulls.
Contains 2 sub-articles.
27th August 2001
A simple tube/solid-state hybrid regenerative receiver for the AM broadcast band.
25th March 2000
2HoT FM, my pirate radio station in high school.