Many thanks to SWLing Post reader, Michael Vitale, who (several weeks ago–!) asked:
Has anyone ever dealt with the equipment from Heros Technology Ltd UK specifically their VLF converters models 350-400? Their claim is these converters will work with any receiver (SW) on the market past or present.
Click here to view the video introduction to the VLF-LF Up-Converter.
I, personally, have no experience with VLF/LF up-converters, so I’m hoping someone else can help Michael. Please comment!
In response to our announcement about WG2XFQ, SWLing Post reader, Kimmo, comments:
The Christmas Eve event by Swedish Friends of Veteran Radio on VLF 17.2 kHz and SW may also be of interest to some. See more information here:
The following is a machine translation ofsdxf.se via Google:
There will be a transmission with the Alexanderson 200 kW alternator on VLF 17.2 kHz from Grimeton Radio / SAQ on Christmas Eve, Wednesday, December 24th, 2014.
The message transmission will take place at 08:00 UTC (09:00 local time). The transmitter will be tuned up starting around 07:30 UTC (08:30 local time).
There will be activity on amateur radio frequencies with the call SK6SAQ on any of the following frequencies:
- 17.2 kHz CW
- 3755 kHz SSB
- 7035 kHz CW
- 14215 kHz SSB
- 14035 khz CW
QSL Reports on SAQ are kindly received by e-mail to: firstname.lastname@example.org or by mail to
Alexander – Grimeton Veteranradios Vaenner
S-432 98 GRIMETON, SWEDEN
The Radio Station will be open to visitors. No entrance fee. Also read our website:www.alexander.n.se
Update: Elad posted the following video of the Elad FDM-DUO receiving the SAQ broadcast on 17.2 kHz: