In article ,
"Tom Holden" wrote:
"Tom Holden" wrote in message
.. .
"Tebojockey" wrote in message
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On Tue, 3 May 2005 07:13:41 -0400, "Tom Holden"
wrote:
"Tebojockey" wrote in message
...
On Mon, 02 May 2005 20:50:32 -0700, running dogg
wrote:
Tom Holden wrote:
"Tom Holden" wrote in message
.. .
Noticed this last night and tonight. Is it my radio or are
others hearing the same thing? German language transmission
booming into Toronto at 9735 from 0200 with distorted
splatter around 9845 and 9625kHz.
So it is Deutsche Welle transmitting from Bonaire. The
splatter is unintelligible but synchronised with modulation
peaks, especially strong with deep male voices. There is no
carrier that I can detect at the splatter frequencies and SSB
reception mode does not derive anything intelligible. The
splatter spectrum seems fairly wide although the presence of
adjacent stations renders these observations difficult. I
can't think of any receiver overload or intermod process that
would result in symmetrical splatter but I am using two
identical radios to listen to the 9735 program and one of the
splatter sidebands so there could be a common receiver
problem. There is less interference to the splatter on 9845.
What radios are you using? My guess would be some sort of IF
problem. If both radios use the same IF then it could be
overloading the circuits and causing the problem. Some radios
can cause symmetrical splatter (as you put it) on both sides of
the main freq, usually 910 khz below and above.
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That's actually a good point. I wonder if the radios' proximity
to each other could be causing an issue as well? If the IF's
are off, it could be a case of intermod by injection, but that
is so rare as to be a long shot.
Hope he does get back to us on what he finds.
Al in CNMI
Both radios are DX-394's. The 910 kHz offset signal would be a 2nd
IF image on one side only, and would be carrier with sidebands,
not carrier-less splatter. The splatter is there with only one
radio operating so it's not radio interaction. I sent a message to
DW - we'll see if they reply or it clears up!
Tom
Cool! Let us know what happens. Are you still hearing it? Like
the next day after? If so, it seems hard to believe that the DW
relay station would not be aware of it, but you may save them some
real embarassment if you call their attention to it. Good on ya,
Tom!
Al in CNMI
Two days in a row and not on any other station this evening. The
9735kHz broadcast schedule from Bonaire is 0200-0600UTC. I'm hoping
someone else will check for splatter at 9845 and 9625, too. It's
01:51 UT now - I'm standing by...
Tom
There it is again - 3 days running. Interestingly, Bonaire transmits
on 9845 almost up to 0200 but the 9735 transmitter is on with carrier
only before 0200 and before 9845 shuts off so it's not the same
transmitter. The splatter is a little easier to detect tonight at
9850 and 9630 due to other stations coming in tonight on 9845 and
9625. Does anybody else hear it?
I just checked and did not hear the splatter around 04:00 UTC.
I noted DW went off the air for a minute around 03:59 UTC.
I have stations on 9625 and 9630 but nothing on 9845 and 9850.
DW is very strong at S10 on 9735.
--
Telamon
Ventura, California