[ACARS] Multiple Scanners

Thu, 07 Feb 2002 19:01:30 +0100

Sorry Sami.

But if you got a splitter with F type connectors you can be shure you got a 75 ohms device.
F type conn. have a typical impedance of 75 ohms.

You have to look for splitters with 50 ohm BNC or N type.
(also these type of connector are available in 75 ohms, so if there's no reference on the
splitter itself to what the load is you can try to find it on the connectors. (in small print))

Robin..

[email protected] wrote:

> Hello Colin,
> all you need is a cheap antenna splitter, preferably a matched one so that there is 50 Ohm in each port of the splitter. I have used it successfully with ACARS. As long as you do not scan but only use one frequency (as you do) you should not get any interference from the two scanners. Sometimes it happens that when you scan the local oscillator(s) of one scanner is heard from the other scanner.
> The splitter can be bought e.g., from the store that sells satellite TV "stuff", it should not cost more than some �4.00. As the signal is split, you will loose some 3+ dB unless there is amplification in the splitter. With a non-matched one you will loose more.
> Very often the connectors are F-type, so you may need to have three adaptors to make it BNC compatible. Inthe end these adaptors cost more than the splitter...
>
> With regards,
> Sami
> OH6MLW
>
> > -----Original Message-----
> > From: ext [email protected] [mailto:[email protected]]
> > Sent: 07 February, 2002 0:05
> > To: [email protected]
> > Subject: [ACARS] Multiple Scanners
> >
> >
> > Hi!
> >
> > I am currently using the acars primary channel (131.725) only
> > to decode acars
> > as when I use my scanner (mvt-7100) to scan more than one
> > channel I lose
> > about 50% of messages available (from approx. 1000 messages a day to
> > sometimes as low as 400 messages a day).  I now have a second
> > scanner (icom
> > pcr-1000) and want to use both scanners on different channels.
> >
> > Can someone tell me what extra equipment I need to decode two
> > channels at the
> > same time?
> >
> > Thank you in advance.
> >
> > Colin Acton.
> > Wrexham, North Wales, UK.
> >
> >
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> >
> _____________________________________________
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> like to join the ACARS Web Ring go to http://www.acarsonline.co.uk
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