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Total 4 documents matching your query.

1. LF: 73kHz - bad news (score: 1): Author: "Mike Dennison" <[email protected]>; Date: Wed, 6 Oct 1999 10:12:58 +0100; Peter, G3LDO, and I transmitted beacons on 71.70kHz this morning in an attempt to check whether our abortive tests of yesterday were connected with the noise coming from Rugby. This frequency is as f; /rsgb_lf_group-archives/html/rsgb_lf_group/1999-10/msg00039.html (10,128 bytes)
2. LF: 73kHz - bad news (score: 1): Author: "Prof R. Jennison" <[email protected]>; Date: Wed, 6 Oct 1999 17:31:27 -0400; Mike et al, Thank you for the possible explanation of the 73 kHz blackout. I wonder if Rugby may have started to use spread spectrum in parallel with its normal system. Unfortunately I cannot be on t; /rsgb_lf_group-archives/html/rsgb_lf_group/1999-10/msg00041.html (9,404 bytes)
3. Re: LF: 73kHz - bad news (score: 1): Author: "Peter Dodd" <[email protected]>; Date: Wed, 6 Oct 1999 23:19:11 +0100; Hello Mike The conclusion is that the Rugby RTTY transmission now has significant white noise sidebands, extending up the band edges (perhaps beyond). This ties in with reports I have had from others; /rsgb_lf_group-archives/html/rsgb_lf_group/1999-10/msg00044.html (9,063 bytes)
4. Re: LF: 73kHz - bad news (score: 1): Author: "Mike Dennison" <[email protected]>; Date: Thu, 7 Oct 1999 10:08:04 +0100; Funnily enough, that is a possibility that Peter, G3LDO, and myself were discussing this morning. The noise appears to decay fairly linearly with frequency, whereas I might expect it to be more expon; /rsgb_lf_group-archives/html/rsgb_lf_group/1999-10/msg00048.html (11,201 bytes)

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