The 800 and 900 base stations are just Tait base stations with 2rx so they can be moved easily to the 900mhz ham band. This has been done several times. Y the 900mhz guys. The Gemini mobiles are going to be rare. Cox cable used a bunch of the Mobile packs on 900mhz in NOLA and other markets, but these are just tait mobiles w/o a head. Easily programmed with tait software. Lin On Fri, Sep 15, 2017 at 10:38 AM Steve L <kb9mwr(a)gmail.com> wrote: > I wonder if the 900 MHz model (928-960 MHz) can some how be made to > work in the ham band (902-928) ? Or is there some sort of filter that > is going to pretty much prevent that. > > Reason I ask is there are a couple of the 900 MHz ones on Ebay at a > sane price. (CALAMP VIPER SC+ 900) > > > > On Fri, Sep 15, 2017 at 9:23 AM, Lin Holcomb <lin(a)n4yci.com> wrote: > > So if he was not run off from all of the Social media vs email list > stuff. > > Sherman W4ATL joined the list to answer any Data Radio questions. > Sherman > > was the chief engineer at DR when I was there. His knowledge is going to > > be pre-cal amp take over. So any of the current off the shelf stuff is > > going to use proprietary information that I doubt Cal-Amp will publish. > > Even the older stuff uses proprietary code mmunitariona protocals, but > the > > ability to hack these is likely as they are just Z80 processors. So > > Sherman if your still here and are willing to answer any questions go for > > it.... > > > > Lin N4YCI > >