We get the canadian grand prix auto race here in june. A british media crew brings their own handies, whiuch happen to be on simplex 444.975 which is the input to montreal repeater VE2RJS. They have no idea they are coming over the ham band, its only for a week and its fun to listen to. Indusrtry canada doesn't really bother with ham problems much anymore. So when the race is over and they pack up, the interference goes with them.
Ian VA2IR Sent on the TELUS Mobility network with BlackBerry -----Original Message----- From: Mike Morris WA6ILQ <wa6...@gmail.com> Date: Sat, 01 May 2010 06:00:06 To: <Repeater-Builder@yahoogroups.com> Subject: Re: [Repeater-Builder] Re: license-free radios At 04:34 AM 05/01/10, you wrote: > > While this one is not a huge problem, it happens too. Visitors come to Las > > Vegas from a lot of foreign countries. People in the UK have whats called > > "PMR" radios. It's their FRS service. The radios are all simplex, > 8 channels > > on 6.25Khz splinter channels starting at 446.000 !!!! Yep! if you > scan those > > channels here you DO hear activity on them! > >For the record, most countries in EU have license-free radios in >3 frequency ranges: >- LPD (Low Power Device), 10mW, 433.075 - 434.775, > 68 channels in 25 kHz raster. > Not so polular beacuse 10mW doesn't get far in cities >- PMR (Public Mobile Radio), 500 mW, 446.000-446.100, > 8 channels in 12.5 kHz raster: > 1 446.00625 > 2 446.01875 > 3 446.03125 > 4 446.04375 > 5 446.05625 > 6 446.06875 > 7 446.08125 > 8 446.09375 > These radios generally have PL support. > Note that in EU, the 70cm band is 430.440 MHz so it is out of > our bands here. > These things are VERY popular - recently bought 2 radios for > $35 together with charger and NiMh cells! >- Digital PMR, 500 mW, 446.100-446.200, > This is like the analog PMR but uses digital voice (this is what > ICOM developed D-STAR for) > >Note that the American FRS/GMRS radios are simply illegal here, as >these frequencies were used by law enforcement till recently >(so not a good choice even to "chance it"). > >You indeed might want to take this into account when setting up >repeater frequencies. > >Hope this helps, > >Geert Jan PE1HZG Sounds like 446.01-446.200 is a good place to put Dstar or P25 repeater outputs, or point-to-point 9600 baud packet links... Just out of curiosity what are the USA FRS and GMRS frequencies used for now? (you said "until recently...) Mike WA6ILQ
