Identifying 453.475mz

Forum for DMR, dPMR, NEXEDGE, Mototrbo, MARC, Tetra & all other DIGITAL modes

Identifying 453.475mz

Postby Helix » Sat Jan 23, 2016 2:58 pm

I've recently started getting transmissions on 453.475mhz

I believe it's digital, could anyone confirm this - audio clip https://clyp.it/rm0mlscw

Would this be voice or data? I hear this pulsing mainly in the day time, sometimes for a few seconds and other times maybe a minute.

My nearest town is Llanelli in South West Wales, however, it's obscured by a mountain... I live in a semi-rural location I don't have much in my line of sight except the sky so to start hearing TX on 453.475 is strange.

Many thanks
Helix
 
Posts: 9
Joined: Mon Sep 08, 2014 9:51 pm

Re: Identifying 453.475mz

Postby jimh » Sat Jan 23, 2016 3:54 pm

That is a MotoTRBO Digital Repeater. The periodic 'pulses' are data. The longer bursts could be data or voice. Have a look at the DSD+ to help decode this.
jimh
 
Posts: 121
Joined: Wed Jan 22, 2014 9:13 pm

Re: Identifying 453.475mz

Postby SilverShadow » Sat Jan 23, 2016 6:46 pm

The National Botanic Garden Of Wales near Llanarthney have that frequency so that could be where it's coming from :walkietalkie:
User avatar
SilverShadow
Site Admin
 
Posts: 2111
Joined: Wed Nov 21, 2012 8:54 pm
Location: Midlands UK

Re: Identifying 453.475mz

Postby m0lsx » Sat Jan 23, 2016 10:15 pm

QSO's between, Daff, Rose & Lilly?? :embarrased: :embarrased: Sorry.
Buy a database from Kimmy JS19 via http://ukscanningdirectory.co.uk/
Or do Google search of this forum via https://www.google.com/cse/home?cx=partner-pub-6291336405621919:2662881632
73 De Alan (M0LSX.)
http://www.qrz.com/db/M0LSX"
User avatar
m0lsx
 
Posts: 5425
Joined: Wed Nov 21, 2012 9:14 pm
Location: Norwich. TG21.


Return to DMR & Digital Modes

Who is online

Users browsing this forum: No registered users and 1 guest