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PA2AGA > HDDIG 29.02.00 16:46l 188 Lines 7804 Bytes #-9563 (0) @ EU
BID : HD_2000_59E
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Subj: HamDigitalDigest 2000/59E
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From: pa2aga
To: hd_broadcast@pa2aga
Subject: HamDigitalDigest 2000/59E
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Date: Sun, 27 Feb 2000 16:20:16 -0600
From: "Steve Sampson" <ssampson@usa-site.net>
Subject: Tower Space
"Ed Woodrick" wrote
> Two-way radio as it has been known, is on it's way out. Many of the high
> sites in Atlanta are close to vacant. The only folks who are still on them
> are the paging services. Just about any site with two-way radio on it is
> getting more room. In many locations, Nextel has just about wiped out
> two-way radio.
The last air-disaster we had around here was an A-7 in the 80's which the
pilot aimed at a river-bed and then got out after taking-off from Tinker.
The problem was, the damn plane bounced, and ended up in this ladies
living room. The sad thing was, she was also there watching TV, and
of course did not survive.
The News reporters and TV stations flocked to the site, and found that
none of their scanners were picking up anything. Then it was found that
the Disaster team was using a Cell-Phone (pretty big in them days) to
coordinate with.
After that, everyone started looking into, and buying Cell-Phones for
emergency response. They knew there was a limitation, but they felt it
was adequite for most emergencies. Then a bomber came into town
and blew up the Federal building. Within minutes the Cell-Phone
infrastructure was swamped. Media made it clear to everyone to not
even turn the Cell-Phone on within 5 miles of ground-zero.
It wasn't until FEMA arrived with their satellite dish (this sucker is huge
and takes a Deuce-n-half to haul). They could lay down communications
and get it out of the city and into the worldwide phone system.
I think everyone got the message, and from that time, there is a diversity
of communications equipment. The data terminal being very useful to
cut down voice comms. Push a button and you are "available", "on-scene"
etc.
Hams assisted the Salvation Army and Red Cross, but that was mostly
buddy-comms, or Canteen logistics. Even then it didn't work out too
well, because the downtown area is inter-mod city. Many radios were
useless, except the old 70's style radios which didn't try to receive
every band known to man like most japanese rigs today.
That's a real need today. Hams could provide a wide-band system to
get the comms out of the affected area. Even 10 miles would suffice.
What that means, is emergency communications equipment that can get
data out of the area point-to-point, and then tie back in to the commercial
system (Internet). For example, there is multiple T-1 communications
gear in each skyscraper. All you have to do is vocode telephones onto a
multiplex data-link to any of the skyscrapers, and you have phone systems
in place for emergencies. You can string them like the Army strings phones
in a war zone. (fast and furious).
I think an excellent solution, is these new 10 Mbps Spread Spectrum
gear from Lucent and Proxim. These could handle a couple-hundred
data and voice channels. Even the 1 Mbps system could handle 20
phones or data links. Drop the phones, aim the antennas, make the
hops needed to get to a T-1, and interface the two systems. Using
my imagination, these phones can be wireless (even Ham repeaters)
or home style portable phones. The gadget you need to interface with
is the PRI. It is basically a channelized T-1 that provides 22 phone
circuits. ISP's use these for you to dial-up to the Internet with.
You can call me CB names, but I think this is a valid use of Ham
technology and basic infrastructure. I see no difference in a Ham
sitting in front of an HF radio, and conducting phone patches, or
doing voice-tell relay from radio to a phone. It is all a matter of how
you connect to the phone, and not whether we will do it or not.
> "Cathryn Mataga" wrote
> > Interesting. That's an interesting point -- did you find someone
> > actually with tower space to spare? Are these the 'high level'
> > tower sites -- like up on peaks and things, or cellphone
> > type towers?
> >
> >
> > "Charles Brabham" wrote
> > > A golden era concerning the availability of tower space is upon us, for
> > > those who know where to look and why.
>.
------------------------------
Date: Sun, 27 Feb 2000 16:22:44 -0800
From: "Cathryn Mataga" <cathryn@junglevision.com>
Subject: Tower Space
> Hams assisted the Salvation Army and Red Cross, but that was mostly
> buddy-comms, or Canteen logistics. Even then it didn't work out too
> well, because the downtown area is inter-mod city. Many radios were
> useless, except the old 70's style radios which didn't try to receive
> every band known to man like most japanese rigs today.
Yup, on my Ming Dynasty TR7730, 2m sounds so nice and quiet. Whereas
on my HT's that band is intermod central. When did this 'out of band
receive' thing become a must have anti-feature?
>.
------------------------------
Date: Sun, 27 Feb 2000 17:13:49 -0800
From: "Cathryn Mataga" <cathryn@junglevision.com>
Subject: Tower Space
"Steve Sampson" <ssampson@usa-site.net> wrote in message
news:sbj8nanpjp59@corp.supernews.com...
> "Ed Woodrick" wrote
> > Two-way radio as it has been known, is on it's way out. Many of the high
> > sites in Atlanta are close to vacant. The only folks who are still on them
> > are the paging services. Just about any site with two-way radio on it is
> > getting more room. In many locations, Nextel has just about wiped out
> > two-way radio.
>
> The last air-disaster we had around here was an A-7 in the 80's which the
> pilot aimed at a river-bed and then got out after taking-off from Tinker.
> The problem was, the damn plane bounced, and ended up in this ladies
> living room. The sad thing was, she was also there watching TV, and
> of course did not survive.
>
> The News reporters and TV stations flocked to the site, and found that
> none of their scanners were picking up anything. Then it was found that
> the Disaster team was using a Cell-Phone (pretty big in them days) to
> coordinate with.
>
> After that, everyone started looking into, and buying Cell-Phones for
> emergency response. They knew there was a limitation, but they felt it
> was adequite for most emergencies. Then a bomber came into town
> and blew up the Federal building. Within minutes the Cell-Phone
> infrastructure was swamped. Media made it clear to everyone to not
> even turn the Cell-Phone on within 5 miles of ground-zero.
>
> It wasn't until FEMA arrived with their satellite dish (this sucker is huge
> and takes a Deuce-n-half to haul). They could lay down communications
> and get it out of the city and into the worldwide phone system.
>
> I think everyone got the message, and from that time, there is a diversity
> of communications equipment. The data terminal being very useful to
> cut down voice comms. Push a button and you are "available", "on-scene"
> etc.
>
> Hams assisted the Salvation Army and Red Cross, but that was mostly
> buddy-comms, or Canteen logistics. Even then it didn't work out too
> well, because the downtown area is inter-mod city. Many radios were
> useless, except the old 70's style radios which didn't try to receive
> every band known to man like most japanese rigs today.
>
> That's a real need today. Hams could provide a wide-band system to
> get the comms out of the affected area. Even 10 miles would suffice.
To be continued in digest: hd_2000_59F
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