Arild Jensen wrote: > ----- Original Message ----- > From: "Jim" > >> I'd like to see the regs that permit low powered, unlicensed operation >> on 144-148 Mhz.The only unlicensed control operations I'm aware of have >> specific bands, such as RC, LPRS, CB, etc. >> >> I was under the impression only the government (military) were >> authorized to transmit in that range at any power. >> > > REPLY > Jim, I did not say I was operating in the 144- 148mHz. band. > The air craft landing field system use their regular frequencies and the > marine fog horns use the allowed marine frequencies. Ham operators who run > two meter repeaters also use the technique and in that case it would be 14- > 148 Mhz.. > > Our traffic light controllers was allocated one single frequency for use > anywhere right acros the country. The radios were supplied with the correct > crystal installed at the factory. We used conventional tone controls for > multi channel separation and multi-plexing. The system is adaptible to any > frequency. For that matter a civilian could use a R/C frequency. What you > do beyond the detector stage is not regulated by the government unless your > local oscillator creates RF interference. QRM. > > Arild > > RE: We used 400mW 2 meter radios for traffic light
control. This is low power and as such not restricted by requiring an FCC licence for each station. Sorry, Arild, When I read anything that refers to "2 meters" I think amateur radio. Probably because I've never heard anyone use that term to refer to commercial applications. Jim. _______________________________________________ Liveaboard mailing list [email protected] To adjust your membership settings over the web http://www.liveaboardnow.org/mailman/listinfo/liveaboard To subscribe send an email to [EMAIL PROTECTED] To unsubscribe send an email to [EMAIL PROTECTED] The archives are at http://www.liveaboardnow.org/pipermail/liveaboard/ To search the archives http://www.mail-archive.com/[email protected] The Mailman Users Guide can be found here http://www.gnu.org/software/mailman/mailman-member/index.html
