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G0FTD > OTHQRM 03.05.04 23:08l 32 Lines 1294 Bytes #999 (0) @ WW
BID : 365089G0FTD
Read: GUEST
Subj: OTH heard today (+trace)
Path: DB0FHN<DB0FOR<DB0SIF<DB0EA<DB0RES<ON0BEL<7M3TJZ<HA3PG<IK1ZNW<GB7CRV<
GB7CIP<GB7SXE
Sent: 040503/1946Z @:GB7SXE.#38.GBR.EU #:46504 [Hastings] FBB7.00i $:365089G0FT
From: G0FTD@GB7SXE.#38.GBR.EU
To : OTHQRM@WW
2 seperate OTH radar signals heard today in the UK.
(1) Was the previously written about 25Hz main pulses and approx 25Khz wide
operating with about 3 overlapped HF channels around 18Mhz.
(2) The other was hanging around 20Mhz (at one time 21.435Khz, 35Khz wide
and seemed to use about 4 overlapped channels and it's main pulses
used approx 50Hz with several smaller pulses afterwards (see my 7plus
file sent seperatly for a 'scope trace).
- Andy -
Attached 'scope trace of OTH2 type QRM.
OTH2.ZIP 1 of 1
7plus file: OTH2.7PL (1 kBytes) - 001/001
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