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Re: [IRCA] Cuban jammer on 1550, very strong.
- Subject: Re: [IRCA] Cuban jammer on 1550, very strong.
- From: Barry McLarnon <bdm@xxxxxxxxxx>
- Date: Sat, 24 Mar 2007 12:54:12 -0400
On Saturday 24 March 2007 00:48, W. Curt Deegan wrote:
> For anyone who would like to hear the Whooper jammer up close, I've
> uploaded an MP3 file recorded earlier this evening, here:
> http://ScooterHound.com/WWWR/radio/1550_032307_194235.mp3
I was hearing the jammer fairly well here last night (thanks to your alert),
once I'd gotten CBE beaten down a bit. First time I've heard it... now I
have to decide whether to add it to the log! Which brings up a related
topic...
I didn't get around to weighing in on the recent discussion of adding special
test signals to stations when running DX tests to enable computer-aided
detection of the signals. I have no objection to such things, since I
frequently use tools such as FFT spectrum analysis myself. When it comes to
logging stations, however, we all have to decide where to draw the line, and
as far as I'm concerned, my log is a record of "stations heard". By that I
mean that I have to hear something in the audio from the station that
establishes the ID, and that audio has to be something that was deliberately
amplitude-modulated onto the signal. Les recently brought up the example of
KFI-640, which a few years back had a carrier frequency drift with a unique
signature that could be easily spotted in a spectragram plot of 640 kHz
carriers. I was able to spot this signature, and still have a screen capture
of the plot around here somewhere, so I definitely was able to receive KFI's
carrier - but, I didn't add KFI to my log (and don't expect to, anytime
soon!). By the same token, I've "seen" the carriers of many distant and
exotic stations and have been pretty certain of who they were (taking into
account propagation conditions, plus the carrier frequency measurements
documented by other DXers), but unless I can get some definitive audio to
confirm the ID, they don't go in the log.
It's natural that we (some of us, anyway) like to compare our "totals" to
measure our DXing exploits. We already have the complication that some folks
count call changes as "new" stations, and some don't (I'm in the latter
camp). In the future (if MW DXing has one, which is increasingly doubtful),
I guess it may get more complicated, as computer-aided IDs become more
commonplace. In any case, there will be no point in claiming new loggings or
stating your totals unless you also explain your criteria for "hearing"
stations.
I think the jammer probably does qualify as a new one by my criteria, so I'll
add it to the log. MW logging #2113 (not including call changes, NDBs,
wobblers, and the like, but does include TIS's, pirates, and now one jammer).
:-)
Barry
--
Barry McLarnon VE3JF Ottawa, ON
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