Airliners-India.com Flickr Group & Facebook    FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  VHF          Airliners-India.com Forum Index -> Tech/Ops View previous topic :: View next topic   Author Message Birendra Member Joined: 15 Feb 2007 Posts: 1411 Posted: Thu Jun 28, 2007 3:53 pm    Post subject: VHF I was searching for aviation VHF trans receivers in india on GOOGLE and i found some interesting articles. http://www.casa.gov.au/fsa/2005/aug/54-55.pdf has mention of GAGAN or the Indian GPS & geostationary Earth Orbit augmented navigation system. Also an important read was http://www.bharat-rakshak.com/IAF/History/1950s/Locksley04.html What some countries are doing http://www.mycoordinates.org/multiple-reference.php Also i found this : Investigation of spurious emissions from cellular phones and the possible effect on aircraft navigation equipment http://ieeexplore.ieee.org/Xplore/login.jsp?url=/iel5/15/27034/01200875.pdf?arnumber=1200875 And to think of it, i was simply trying to find out what is the best vhf radio/transreceiver i should buy from Indus in Bangalore and look where all the search took me. _________________ Dictum meum pactum, "My word is my bond". Back to top C-GHKR Member Joined: 26 Dec 2006 Posts: 626 Location: yyz Posted: Fri Jun 29, 2007 10:41 am    Post subject: I don't think it is legal to use transreceivers without licence even here. All you can buy is a receiver that cannot transmit. About emissions, if the equipment is shielded and subjected to EMC tests and radiated immunity tests these problems can be overcome by compensating or modifying these equipment. Also the cell phones need to be FCC approved ie, there are limits for spurious emissions as per CFR rules of FCC and they can be sold in the market only if their emissions are within the limits. So, the chance of these problems are rare and it possible that the older instruments were not tested to these standards and for aviation and military there are more stringent standards. FCC rules are for North America only and in Europe they have equivalent standards CISPR, ETSI etc. I wonder if there is any in India. Last edited by C-GHKR on Fri Jun 29, 2007 5:10 pm; edited 1 time in total Back to top HAWK21M Member Joined: 19 Dec 2006 Posts: 8132 Location: Mumbai, INDIA Posted: Fri Jun 29, 2007 2:31 pm    Post subject: Operating a Transreciever would require a Aeromobile radio licence issued by the concerned authorities.Only Radio recievers are allowed without a licence. regds MEL _________________ Think of the Brighter side !!! Back to top Birendra Member Joined: 15 Feb 2007 Posts: 1411 Posted: Sat Jun 30, 2007 6:40 am    Post subject: HAWK21M wrote: Operating a Transreciever would require a Aeromobile radio licence issued by the concerned authorities.Only Radio recievers are allowed without a licence. regds MEL Who are these concerned authorities _________________ Dictum meum pactum, "My word is my bond". Back to top AirIndiaOne Member Joined: 23 Dec 2006 Posts: 28 Location: Mumbai, IN Posted: Mon Jul 02, 2007 2:18 pm    Post subject: Birendra wrote: Who are these concerned authorities i believe its the DoT's Wireless Planning & Commission wing which has been given the responsibility of managing and alloting the sprectrum. They are the issuing authority for licenses. Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         Airliners-India.com Forum Index -> Tech/Ops All times are GMT + 5.5 Hours Page 1 of 1   Jump to: Select a forum New Members----------------Sign-up Guidelines Airliners-India----------------Civil AviationNon AviationTrip ReportsMilitary Aviation & SpaceInternationalAviation Polls & PreferenceTech/OpsAviation PhotographyEditorial/Analysis/ArticlesAviation HobbyAviation LawAviation Questions & CareersSite Related Flickr Group----------------Photo of the Month My Message Board----------------Pin Up  You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum Powered by phpBB © phpBB Group. Hosted by phpBB.BizHat.com