we’re now working on our new products
– 2010 Super Frequency List on CD
– 2010 Shortwave Frequency Guide
– 2010 Frequency Database for the Perseus LF-HF Software-Defined Receiver
– Supplement January 2010 to the 2009/2010 Guide to Utility Radio Stations
to be published on 10 December 2009.
Full-resolution title page graphics can be found at
If you are able to supply additional new frequencies and stations, your cooperation would be highly appreciated. Please let us have your data by 10 October 2009.
The printed Supplement will be attached free to all copies of the 2009/2010 Guide to Utility Radio Stations sold after 1 January 2010.
Those customers that did acquire the 2009/2010 Guide to Utility Radio Stations before that date may download the pertinent .PDF file free from our website, after 1 January 2010.
The continuously updated product Digital Data Decoder Screenshots on CD is highly successful and now covers more than 7,000 (seven thousand!) screenshots from 1997 to today. Feed your PC with this CD and the “slide show” will keep you busy for a few days – or weeks!
We’re still in the sunspot minimum and daytime MUF fluctuates between 15 and 18 MHz. Recently, HF propagation conditions have been quite unfavourable for long-distance communication. Anyway, new HF e-mail services, stations, networks and frequencies continue to emerge on a regular basis. HF e-mail booms and service providers continue to expand. No other publisher considers this revolutionary development accordingly.
Best wishes, Joerg Klingenfuss
Klingenfuss Radio Monitoring
Hagenloher Str. 14
Phone +49 7071 62830
Fax +49 7071 600849