( Note – no responsibility is taken for content found on other sites. If you find a broken link then please inform the webmaster at webmaster@raynet-hf.net )
http://www.codan.com.au/
Codan Communications (Australia)
http://www.barrettcommunications.com.au/
Barratt Communications ( Aus.) Commercial HF SSB; these two companies have HF down to a fine art, datacomms included !
http://www.n2ckh.com/PC_ALE_FORUM/
The new home of the PC-ALE program developed by Charles Brain, G4GUO.
http://www.amalgamate2000.com/radio-hobbies/radio/Index.htm
This New Zealand site has links to a HF SSB repeater project and information on co-axial resonators.
http://www.qsl.net/ve3mcf/elecraft_reflect/Antenna_Rogers-Dobbins_Folded_Conical_Helix.txt
http://www.qsl.net/ve3mcf/elecraft_reflect/Antenna_Rogers-Dobbins_Folded_Conical_Helix-2.txt
The Rogers-Dobbins Folded Conical Helical antenna is an interesting way to get a big antenna in a small space.
https://www.4alg.uk/radio/qrp/60m_tx.htm
GW4ALG’s ‘Super-Sixty 5MHz Transmitter and Receive Converter.
http://www.n5ese.com/notebk_ant.htm
An antenna design that fits into a standard A4 ringbinder with not in use. While only designed for 40-10m it may be extended for the lower bands.