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440.300MHz - Transit Gaurds?

Posted: Tue Oct 19, 2010 3:52 pm
by Rolly
Hi All

Just found this frequency and there are people calling from train stations to a base for name checks and checks on ticket machines etc. I am assuming this is a frequency used by the Transit Gaurds.

Checked the ACMA database and it has no mention of anyone in WA owning or using that frequency?

Any ideas?

Re: 440.300MHz - Transit Gaurds?

Posted: Tue Oct 19, 2010 4:56 pm
by yorky
Strange, your right it doesn't come up on the database website, although it may have been omitted or forgotten somehow.

I'm not an expert on the Amateur side but I think its part of the Amateur side of things as 440Mhz has a lot of frequencies for http://web.acma.gov.au/pls/radcom/clien ... _NO=207908 West Australian Repeater Group "Amateur" Licenses.

Re: 440.300MHz - Transit Gaurds?

Posted: Tue Oct 19, 2010 5:10 pm
by VK6LD
Ahhh, a trick for new (& old) players

What you are hearing is created by the IF in your scanner. See http://en.wikipedia.org/wiki/Intermediate_frequency

440.300 - 21.4 (Scanner IF) = 418.900MHz.