[d-star] d-star repeater system ordered :)

[tom]

getting a 900mhz wide band for house to store about 5 miles.  the speks on 
that includes one to 4 trees.  we have a lot of big pine trees that absorb 
year around and if one tree reduces the 900mhz to 1000 ft then have a 
problem with 1.2ghz mobile.  then what power level will id-800 run ?
will wait for more info , keep up the good work.
tom  w0kgw

----- Original Message ----- 
From: "Erik Jacobson" <erikj at tdkt.org>
To: "List for people interested in the D Star repeaters" 
<d-star at lists.twinslan.org>
Sent: Tuesday, January 23, 2007 5:52 PM
Subject: Re: [d-star] d-star repeater system ordered :)


>>    want to hear from a user as to distance and speed and cost .  the
>> complete system cost and how far the 5ghz part goes.  the vhf and uhf out
>
> I wasn't sure if you were talking about the repeater pieces or the
> mobile radio pieces.
>
> For the repeater pieces...
> You need one controller module to do anything.  It can drive up to 4
> RF modules.  They sell modules for 2-meters and 440 for digital voice.
> They sell two 1.2ghz modules - for for digital voice, and one for high
> speed data.
>
> The digital voice modules support low speed data at about 1kbs.  This is
> good for things like short messages, aprs, and other packet-like 
> applications.
>
> The bandwidth for digital voice + low speed data is < 6.25khz according
> to the specs.
>
> I have no experience in 1.2ghz (yet :) and only know what others have
> said about how it gets out.
>
> Some people like to say that digital voice will give you about 15% more
> range than standard fm.  I believe this is due mostly to the fact
> that digital voice uses less bandwidth than fm.  I don't have personal
> experience with these things yet, I'm mostly going on specs here and
> board postings.
>
> For pricing on the repeater pieces, you could take a look at the
> D-Star tab on Radio City's catalog.
> http://www.radioinc.com/oscmax/catalog/
>
> They also show other d-star capable radios there.
>
> The promotion I'm using is titled:
> "D-Star promo: Buy 2 bands get 1 band Free"
> (And that free band is 1.2ghz and includes both 1.2ghz modules).
>
> As for the high speed data, it runs at 128kbps and is 300khz wide.
>
> If you're just looking for radios, the IC-91AD is around $450. That's a
> conventional dual-band hand held with the d-star module installed.  I want
> one of those.  This is a true dual-band in that it lets you monitor both
> bands at once.
>
> For the car, they have the ID-800H dual-band mobile.  This is what I put
> in my Prius.  It's around $630.  It has wide receive and does 2m and 440.
> One thing I don't like about it is it doesn't let you monitor both bands 
> at
> the same time.  What I'd really like is a mobile version of 91AD but there 
> is
> no such thing yet.
>
> There is also a 2-meter only IC-2200H at $159.95.  I think this requires
> a module to do the d-star digital voice stuff though.  If I read things
> right, that's an extra $180.
>
> The have the ID-1 radio that does digital voice and high speed data for
> 1.2 GHz.  It has, for example, an ethernet jack on the back.  It's pricey
> though. I'll need one of those to play with 1.2ghz but I'm waiting a while
> before I buy it I think.
>
> As far as I know, nothing in d-star talks at 5GHz.  There are microwave
> link modules that do 10Mbit at 10GHz.  Too pricey for me though :)
>
> One thing that annoys me is Icom does a bad job of selling these radios
> on their web site.  It's hard to find the information.  I can give you
> some links to PDFs with specs if you're interested.
>
> Sorry if this got too wordy.
>
> Erik / N0SVX
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