[Dstar] Re: D-Star and emergencies

[Will]

Spot on Steve,

It is all good fun...

Will
VK6UU
Perth Australia






On Thu Sep 11 22:43 , 'Steven Samuel Bosshard (NU5D)' <bosshard at gmail.com> sent:

>Hello friends,
>
>Observations:
>
>Coverage - FM v Dstar - Dstar is equal or better. - Fixed station to 
>fixed station very good - mobile flutter and fades are less forgiving 
>with dstar (in my opinion).
>
>Noisy room - use headsets.
>
>One BIG difference between IRLP / Echolink / Dstar Gateways - IRLP and 
>Echolink take recovered audio from FM receivers and digitizes this in a 
>computer and sends it thru the internet, then recovers the data back 
>into audio and re-transmits.  When DSTAR leaves the users transmitter it 
>remains digital and unaltered until it reaches the receiving user's 
>radio.  Digital all the way - no demod / remod. 
>
>We trade hiss and pop and loud and soft for R2D2 or loss of sync.  DSTAR 
>does use forward error correction to try and make a recovery. 
>
>Dstar adds a data channel for GPS reporting or short messaging 
>concurrent with voice - not bad for a narrow banded radio.
>
>DSTAR replace FM - not in the near future, but dstar does bring 
>something different to the ball park.  Also I plan to keep my HF radio 
>even though FM is much nicer to listen to.  Also I keep some dusty 
>paddles that I can use for CW if things get really bad (I am not a CW op 
>by preference but applaud folks with that talent).
>
>My 2 cents, I may be wrong, and your mileage may vary,  73 Steve NU5D, 
>K5CTX, Temple, Texas US
>
>
>
>
>
>Mark Aitken wrote:
>> dstar-request at lists.wia.org.au wrote:
>>>
>>> Hello All
>>>             Without going into the technical side of digital radio I   
>> We are a technical hobby,  so why not go into it,  we may all learn 
>> something?
>>
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