Ducting??

brianWE · Post by **brianWE** » Wed Oct 08, 2008 7:51 am

This morning, I am hearing a Newcastle car or two on the local channel. (78.3875)
Loud and clear....but a bit "head in a bucket".
Not getting the VKG side.

System glitch or ducting?
Something else?

Come to think of it, for the past few days, I have been hearing an occasional snatch of voice from another channel when the operator drops the button. Barely a syllable...just a fragment.

brianWE · Post by **brianWE** » Wed Oct 08, 2008 7:55 am

A local car just asked about it....VKG didn't know anything.

brianWE · Post by **brianWE** » Wed Oct 08, 2008 5:37 pm

The full Newcastle transmissions lasted a couple of hours....but still getting the tiny voice grab from another channel when the operator lets the button go.

Farsouthscanner · Post by **Farsouthscanner** » Wed Oct 08, 2008 7:33 pm

I thought I heard a few seconds of ducting a couple of days ago. It was a chopper going to Bankstown after a search. As far as I know there wasn't anything happening locally and I don't think VKG replied.
We quite often get ducting if the conditions are right from Newcastle and Central Coast areas.
A couple of years ago I heard some ducting from the north coast of Tasmania. A place called ? Beach if I remember correctly and I think they might have had bad fires down there at the time. Might of had something to do with smoke drifting north?
Mark

brianWE · Post by **brianWE** » Thu Oct 09, 2008 4:48 am

I, am pretty sure this one wasn't ducting.
I suspect it is some sort of "crossed line" effect in the police comms system. Induction? Like a signal "bleeding" into an adjacent circuit.
Dunno all the tech terms.

brianWE · Post by **brianWE** » Fri Oct 10, 2008 8:41 am

Sounds like they are working on the problem.
An hour ago, VKG announced channels T and O were being combined for a while.
Now comms from both the NC and Midcoast are being heard.
And the Newcastle car transmissions, as well. Not the responses, though.

brianWE · Post by **brianWE** » Sat Oct 11, 2008 3:46 pm

OK, today.

Farsouthscanner · Post by **Farsouthscanner** » Sun Oct 12, 2008 10:10 am

Always interesting to hear things like that and and what the techs do when fixing them, joining channels etc.
Mark

brianWE · Post by **brianWE** » Mon Oct 13, 2008 7:32 am

Farsouthscanner wrote:Always interesting to hear things like that and and what the techs do when fixing them, joining channels etc.
Mark

Yes.
Sometimes, they combine the channels in slack times...like early morning.
Or when staffing is a problem.

brianWE · Post by **brianWE** » Tue Oct 14, 2008 8:38 am

They announced they were combining channels "for training purposes, this morning....then cancelled because of technical difficulties.

scanSydney

Ducting??

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