Showing posts with label 9khz. Show all posts
Showing posts with label 9khz. Show all posts
14 Mar 2010

New German amateur test on 8.87kHz planned

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Stefan DK7FC is hoping to do a second test transmission on March 15th on 8.97kHz using a vertical antenna, new large loading coil and variom...
13 Mar 2010

8.97kHz VLF grabber on-line in Germany

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DF6NM in Nuernberg, who has been successfully experimenting with sub-9kHz communications now has a temporary grabber on-air to capture any a...
12 Mar 2010

Sub-9kHz induction comms resource

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John F5VLF/G3PAI has brought a very useful website about induction mode communications below 9kHz to my attention. This site is mainly abo...
11 Mar 2010

Sub-9kHz Induction Field DX?

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With all the discussion recently on the LF Reflector about how to radiate a signal on sub-9kHz I'm left wondrering how far, practical...
8 comments:
10 Mar 2010

9kHz band receiver front-end (M0BMU)

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Jim M0BMU has produced a neat loop/preamp design suitable for listening on the 9kHz band for which we hope NoVs will be available shortly i...
4 comments:
28 Feb 2010

Amateur DXing below 9kHz (VLF)

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Some recent discussion on the LF Reflector is suggesting that distances of >100kms should be workable with amateur stations below 9kHz, a...
25 Feb 2010

NoV permits for operation below 9kHz

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OFCOM has informed me today that, subject to acceptable outcomes of consultation with other sub-9kHz spectrum users such as the Met Office, ...
2 comments:
22 Feb 2010

UK permits for transmissions below 9kHz?

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There has been some debate today on the RSGB's LF Reflector about how legal amateur transmissions in the UK would be at frequencies belo...
2 comments: