I actually realized that D-Star or ham gear for that matter is a bad idea from user interface perspective- it is too complex! I don't want people to fumble with all the knobs and buttons and end up unable to use the radios.
So, if I were to use true commercial gear, any recommendations? I have seen the narrow band notices pointing to 2013 implementation date, but are they for real? Do we need digital? Do bear in mind that the design of the system is aimed to address MAJOR disasters, i.e. the entire NYC building with 1,000s of people destroyed. Thus, my desire to explore the possibility of installing the repeater in our Newark, NJ office, just across the Hudson river. In a way, we hope we will never ever need to use the repeater and the radios. The thinking around digital came from the assumption that we have such a major disaster in NYC the RF space is going to be saturated with other commercial users and going digital may alleviate somewhat the problem. No? >From coordination perspective, whom do I contact for repeater frequency >allocation? I am sure our existing commercial VHF license would not cover >repeater use. If there are any dealers out there, feel free to email me privately and work on a design. We are also considering sat phones for our portfolio of crisis management communications tools. Rudy N2WQ --- In Repeater-Builder@yahoogroups.com, Brian Raker <brian.ra...@...> wrote: > > I'm pretty sure that most all gear made for amateur service has not been > type-accepted by the FCC for use on Part 90 frequencies, therefore making > use of ham gear in business/commercial VHF/UHF bands illegal. > > If it's going to be used for commercial purposes, plan to buy commercial > grade equipment. It might cost more, but you'll get the service and support > that a business requires, not to mention commercial products are typically > built to a higher standard than amateur gear. > > -Brian / KF4ZWZ > > > > On Fri, Aug 27, 2010 at 12:11 PM, n5qs <ygr...@...> wrote: > > > Chuck > > > > Please abandon the idea of using D-Star equipment modified for non amateur > > use. > > First this is ILLEGAL. > > 2nd there is no commercial equipment that I am aware of that is compatible > > without modification. > > > > I would suggest using Kenwood Nextedge technology. > > This is very similar in performance to the D-Star and has a bandwidth of > > 6.25 KHz on a simplex radio (Mototurbo can not operate at 6.25 KHz without > > infrastructure) > > The FCC has already stated that the 6.25 KHz bandwidth is coming they just > > don't give any date prediction and I would not design a NEW system that did > > not comply directly with the ability to use this bandwidth. > > > > This is probably the most stable technology in todays market that can be > > set up with off the shelf equipment. > > I am too far away to help but would be glad to advise any legal way that I > > can. > > > > Roger > > > > > > --- In Repeater-Builder@yahoogroups.com, "Chuck Kelsey" <wb2edv@> > > wrote: > > > > > > I doubt that the D-Star amateur equipment (or any amateur equipment) is > > > type-accepted for where you intend to use them. > > > > > > Chuck > > > WB2EDV > > > > > > > > > ----- Original Message ----- > > > From: "rudy_n2wq" <r_bakalov@> > > > To: <Repeater-Builder@yahoogroups.com> > > > Sent: Thursday, August 26, 2010 1:08 PM > > > Subject: [Repeater-Builder] Seeking emergency system design help > > > > > > > > > > Hello, > > > > > > > > I am looking for some advice or even a systems integrator who can help > > me > > > > design and implement an emergency communication system for my employer, > > > > using an off-the-shelf repeater and radios. > > > > > > > > My current thinking is to use D-Star radios and a D-star repeater, > > > > modified to work on non-amateur frequencies. Since the radios will be > > in > > > > Manhattan, the idea is to place the repeater in our Newark, NJ office > > and > > > > use directional antennas for the repeater. We are trying to prepare for > > > > the possibility of the entire building being damaged and thus the idea > > to > > > > move the repeater across the river. > > > > > > > > 73, Rudy N2WQ > > > > > > > > > > > > > ------------------------------------ > > > > > > > > Yahoo! Groups Links > > > > > > > > >
