BLIND-HAMS Archives

For blind ham radio operators

BLIND-HAMS@LISTSERV.ICORS.ORG

Options: Use Forum View

Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
Reply To:
Blind-Hams For blind ham radio operators <[log in to unmask]>
Date:
Fri, 12 Aug 2005 14:29:12 -0600
Content-Type:
text/plain
Parts/Attachments:
text/plain (32 lines)
Message-Id: <20050812143020.PXIT25678.ibm61aec.bellsouth.net@[68.212.116.5]>

k8sp wrote:
   >An interesting
   >paradox in the whole thing is that digital is a lot harder to pick
   >up using an off-the-air antenna; it doesn't have the range of
   >analog, contrary to initial expectations.  Of course, when/if you
   >do get a digital signal, it is apparently very nice with few
   >artifacts, but then again, if you lose it, it is just gone.  Kaput.

That's thanks to multipath.  yOur receiver can't achieve lock.
They've found the same adventure with digital trunking systems I've
heard.  doesn't fare well under conditions such as multipath which are
quite common on vhf and uhf.
what I wonder is how this cool stuff is going to fare when the band
opens up.  IF your receiver can't grab wahta it needs to decode the
bit stream you've got squat.
That's why I miss analog type too btw.  You could always recover some
of it even if the head of the tape got mangled.  try that with digital
<g>.



Richard Webb

Electric Spider Productions
                                            "They that can give up essential liberty to obtain a little temporary
safety deserve neither liberty nor safety."
--- Benjamin Franklin, NOvember 1755 from the
Historical review of Pennsylvania


ATOM RSS1 RSS2