[ICOM] D-Star

[Anders Janis SM4RNA]

Thanks for the information. Very interesting.

I agree that digital should have it's own QRG's. A while ago a few, tried to 
use scrambled audio via a repeater. A few others got very mad becaurse of 
the "noice".

We use 145,3375 for the D-star, but activity right now is down as the one 
having UT-118 is to far apart. When we made the tests we used dedicated yagi 
antennas that right now has other use. Now we wait for more people geting 
QRV but the digital options are expensive and as there is no activity peploe 
is't motivated to go QRV. To make things even worse ICOM release radios that 
do not have D-Star, the latest 2m HT fore example. No wonder people are in 
doubt.

/Anders


----- Original Message ----- 
From: "Joel R. Hallas" <jrhallas at optonline.net>
To: "'ICOM Reflector'" <icom at mailman.qth.net>
Sent: Saturday, July 07, 2007 2:17 PM
Subject: RE: [ICOM] D-Star


> Anders,
>
> We checked that in our QST Product Review of 2 meter D-STAR (UT-118 
> equipped
> IC-V82,June 2005) and noted it in the review. The review and a D-Star
> overview are available on the members' only web-site at arrl.org. BTW, 
> there
> will be an article on D-STAR operations in the Sept (EmComm) issue.
>
> I also expected the signals to make it through an analog repeater, but
> confirmed that they didn't make it. I checked with IcomUS Engineering and
> they said that the phase distortion across the audio passband was too much
> for the phase keyed code. Perhaps if the connection were made at IF 
> instead
> of audio, it might work, but we didn't try it.
>
> Probably just as well, since it would open the squelch to a blast of noise
> for everyone without D-STAR on the repeater!
>
> Regards, Joel
> Joel R. Hallas, W1ZR
>
> -----Original Message-----
> From: icom-bounces at mailman.qth.net [mailto:icom-bounces at mailman.qth.net] 
> On
> Behalf Of Anders Janis SM4RNA
> Sent: Saturday, July 07, 2007 4:52 AM
> To: ICOM Reflector
> Subject: Re: [ICOM] D-Star
>
> By the way. A interesting thing we noticed. One can not use the digital
> speech mode and talk via a convetional repeater. The audio disappear
> compeatly. Have no idea why. I think the digital mode has less bandwith 
> than
>
> regular FM so I do not think the repeater is to narrow.
>
> The manual to my IC-2200H is very very bad when it comes to the digital
> part. So I might be wrong on the bandwith. But as I recall the manual
> recomend 12,5kHz between stations. Also the standard has changed once 
> since
> I bought the radio. I had to change the UT-115 to a UT-118 to be able to
> work the other Icoms with D-star.
>
> Still there seem to be a problem with the UT-118. The call sign of the 
> other
>
> station is suposed to show on my display, but it do not. Have not put in 
> to
> much work into that as the main intrest was to test the digital speech and
> range compared to regular FM.
>
> /Anders
>
>
> ----- Original Message ----- 
> From: "Jim Miller" <JimMiller at STL-OnLine.Net>
> To: "ICOM Reflector" <icom at mailman.qth.net>
> Sent: Saturday, July 07, 2007 5:33 AM
> Subject: [ICOM] D-Star
>
>
> Can somebody define D-Star in a sentence or so?  Is it and expanded APRS?
>
> Thanks, Jim KG0KP
> ----
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> ----
> Your Moderator: Dick Flanagan K7VC, icom-owner at mailman.qth.net
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