My apologies for forwarding this but I need some help with the answers. You could write directly to Johnny or post to the reflector as is appropriate.
>Date: Tue, 8 Mar 2011 08:37:19 +0800 (HKT) >From: Johnny Siu <vr2...@yahoo.com.hk> >Subject: Allocation of 433 434 MHz Band for Short > Range Devices in VR2 >To: "Edward R. Cole" <kl...@acsalaska.net> > > > >Hello Edward, > > From my reading of your messages in Elecraft > mail reflector, I understand you are an active > operator in the UHF/SHF region. Therefore, I need to draw your expertise now. > >The allocation of 70cm band in Hong Kong is >430-431Mhz and 435-439.8Mhz - secondary amateur service. > >Office of Telecommunication Authority (OFTA) of >Hong Kong is now considering allocating >433-434Mhz for short range devices >(SRD). Clearly, this is not to the interest of >the amateur radio sector in Hong Kong and >deviated from IARU - region 3 band plan. > >I will take up the matter with OFTA on behalf of >the amateur radio sector in VR2 to defense the >70cm ham specturm. Before doing so, I would >like to draw some of your expertise: > >1. Is it common to have short range devices >within the 70cm band in other countries e.g. US? >2. Presumably, the short range devices are of >low RF power so that co-existence with ham >operation in the same band is possible. Is my understanding correct? >3. If my understanding in item 2 above is >positive, are there requirements for any guard >band between the SRD and ham channels? >4. Is there technical issues which I should highlight to OFTA? > >My ultimate aim is to demand OFTA to return the >band segment of 433-434Mhz to the amateur radio >sector (at least as secondary services) in >VR2. Spot frequencies co-exist with ham >operation are acceptable. Any information to >back up my argument will be appreciated. > > >Cheers, > >Johnny VR2XMC > 73, Ed - KL7UW, WD2XSH/45 ====================================== BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 144-1.4kw, 432-100w, 1296-testing*, 3400-winter? DUBUS Magazine USA Rep dubus...@hotmail.com ====================================== _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
