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| To: | [email protected] |
|---|---|
| Subject: | Re: LF: DFCW beacon moved to 40m |
| From: | [email protected] |
| Date: | Sun, 26 Oct 2003 04:36:49 EST |
| Reply-to: | [email protected] |
| Sender: | <[email protected]> |
|
Hi Johan and the group, Thanks for the test; much appreciated because I (and DF0WD) is still QRT on LF. Unfortunately, in a domestic environment I could not decode your QRPPP signal on 40m yesterday. Was it on the whole night ? Slightly "off-frequency": I am frequently monitoring the VLF range with a colour azimuth spectrogram as invented / presented by DF6NM. There is a remarkable change of the azimuth of reception (only a few degrees), which seems to depend on the time of day, and also on the frequency - for example, the lower part of the MSK signal arrives from a slightly different direction (+- 1°) than the upper part. DHO38 on 23.4kHz is only ~100km away from here, so the groundwave should be dominant, but even there is this strange nighttime effect. On "DX" signals like NWC (19.8kHz) the effect is not visible. Regards, Wolf DL4YHF. |
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