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I did not call the majority "stupid" - you did... I
said that the majority usually has to be dragged kicking and screaming to
embrace the new technologies....Harking back to the economic argument of AM vs
SSB... I recall very clearly that the AM forces were using exactly the same
economic argument against SSB.. ie why abandon perfectly good AM radios and buy
expensive SSB radios... Well 50 years later you are using the same
unrealistic argument against DV.
In reality we need to experiment with these new
technologies...and with experimentation just like with SSB they will get much
less expensive.... The equivalent example is your cell phone which is a
very inexpensive DV transceiver wherein upwards of 20 QSO's share a single
analogue voice channel without any QRM... For Ham use, there does not need
to be a central server.. in fact thats one of the interesting areas we can
experiment with. DV opens up all kinds of interesting possibilities
that neither you or I have yet to imagine. Like with the Cell Phone
industry which has totally adopted DV, it will give us the potential of having
an order of magnitude more communications capacity within the existing
bands. The cool things to do will be to experiment with it on HF and
figure out how to optimize it for Ham use...
Time frame: Currently every time you want to
experiment with something new on the ham bands, you have to perform some
witchcraft to decipher the current rules to see if you are legal.. the new
bandwidth proposals should
make experimentation easier.. Again.. realistically
there is a lot of existing DV technology in the cell phone industry that we
could adopt...just like in the old FM days when we used older Police and Fire
radios...because they were cheap...So we may be a lot closer to inexpensive DV
than you think....
__________________________________________________________ Howard S.
White Ph.D. P. Eng., VE3GFW/K6 ex-AE6SM KY6LA Website: www.ky6la.com "No Good Deed Goes
Unpunished" "Ham Antennas Save Lives - Katrina, 2003 San Diego Fires,
911"
----- Original Message -----
Sent: Tuesday, January 31, 2006 7:04
AM
Subject: [digitalradio] Re: Digital voice
on HF
Your platitudes and generalities just don't explain why or
how your
conclusions are appropriate. For example, common run of the
mill
tranceivers can handle multiple PSK streams within a 3 kHz
bandwidth.
Probably around 30 streams with guard space. Those same 30
DV
streams would require a receiver with a 90 kHz (or more)
audio
bandwidth and sound cards with the same bandwidth in your
computer
too! Just not possible! Consequently, you would need
to use a signal
at IF frequencies. Forget putting that into a sound
card. Whoops, you
mean you need all new equipment - there goes any economic
justification.
Your other comments make it appear that you believe the
"majority" of
hams are simply stupid because they won't throw away
existing
equipment to do the things you advocate. There are any
number of
inventions and inovations on the trash heap of history because of
this
attitude! Neither the FCC or anyone else 'forced' the majority
to
adopt SSB. The 'majority' adopted it because it allowed cheaper
power
amplifiers and it had a better S/N ratio. In other words it had
not
only technical advantages but economic ones also. Neither the FCC
or
anyone else 'forced' the adoption of PSK by the majority. It
was
adopted because it has technical advantages and economic ones
also.
There are a large number of hams who don't have the
economic
wherewithal to just junk existing HF equipment and move into the
'HF
digital world' you advocate. There are also many who don't have
the
HF antenna systems to provide the S/N ratios required of
these
systems. Perhaps some day, DV will have ALL the factors that
provide
the majority of hams the incentive to move to this mode, but not
today
nor probably not in the next decade.
I don't mean there
shouldn't be experimentation done nor inovations
made. But don't
imply the 'majority' is simply stupid just because
they won't throw away
existing equipment and embrace new advancments
just because they are
new! As a high school student when I wanted to
use phone I used AM
because it was cheaper to modify my Globe Chief
90A for this mode than to
buy a new SSB rig or attempt to build a SSB
exciter. I just didn't
have the money for that! I suspect a lot of
hams were in that same
boat rather than (as you say) had to "be
dragged kicking and screaming to
accept any change".
You might convince more folks to your way of
thinking if you would
address some of the economic and technical issues
associated with
moving to the "HF Digital Voice" world you espouse.
It would help
explain WHY folks should spend hard earned money so
do!
Jim
WA0LYK
==============================
--- In
digitalradio@yahoogroups.com, "Dr. Howard S. White"
<[EMAIL PROTECTED]>
wrote:
>
> I see that we are both excited about the possibilities
of DV and
intelligent filters and multiple QSO's on the same HF channel....
...programs such as PSK Deluxe already show us that we can
decode
multiple information streams within the same bandwidth... Imagine
how
neat it would be to do this in a DV contest
>
>
Regulations are very much like tariffs.. they protect the status
quo... and
invariably the unintended consequences of tariffs is that
they make the
industries that they initially protect much weaker in
the long run because
they have not been exposed to competition. Like
tariffs,
regulations protecting the status quo are very popular with
the "majority'
as the "majority" usually has to be dragged kicking
and screaming to
accept any change (spark gaps, CW, AM, SSB, FM,
Digital) even if in the
long run change will be beneficial for
them....Heck, if we left decisions
on new technology to the "majority"
we would likely not have progressed
beyond smoke signals and
heliographs...
>
> So it ultimately
is not a "majority' vs. "minority' thing.. but
rather it is whether we want
to innovate into the 21st century or just
maintain the status quo of the
20th century....
>
> For me.. the exciting possibilities of
innovation wins every time...
there are just too many cool things out there
to try and play without
having to be constantly looking over your shoulder
to try to decipher
all those arcane interpretations of FCC rules...just so
you can figure
out if the latest thing you are playing with is legal or
not...
>
> I want to stop playing lawyer and get back to
engineering..and the
fun of innovating new technologies...
>
__________________________________________________________
> Howard S.
White Ph.D. P. Eng., VE3GFW/K6 ex-AE6SM KY6LA
> Website:
www.ky6la.com
> "No Good Deed Goes Unpunished"
> "Ham Antennas
Save Lives - Katrina, 2003 San Diego Fires, 911"
Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org
Other areas of interest:
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DigiPol: http://groups.yahoo.com/group/Digipol (band plan policy discussion)
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