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PA2AGA > TCPDIG 31.08.96 04:04l 179 Lines 6523 Bytes #-10902 (0) @ EU
BID : TCP_96_175E
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Subj: TCP-Group Digest 96/175E
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Date: Fri, 30 Aug 96 22:38:40 MET
Message-Id: <tcp_96_175E>
From: pa2aga
To: tcp_broadcast@pa2aga-1
Subject: TCP-Group Digest 96/175E
X-BBS-Msg-Type: B
or so to TCI every month. Unless they upgrade their service so that we
get decent throughput (imagine what a few hundred subscribers would do
to your throughput - it _could_ happen here in Silicon Valley), the
service would
probably end up slower than 28.8 dialup now. On the other hand, in San
Jose, TCI runs the very old double-coax system to people's houses,
meaning that you need a switch box to get from the local-access
channels to the interesting cable channels (such as CNN, etc). Perhaps
a move to cable modem might get them off the duff and get us an
upgrade.
I also have noticed that last October PacBell ran fiber cables
throughout the neighborhoods in the area. They are _still_ not
connected to anything. They did do the job of getting a higher price
for a sellout, though.
Might the cable company be using a similar ploy to increase their
value for a takeover?
Jack Brindle
ham radio: wa4fib/6
internet: jackb@apple.com
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<X-FONTSIZE><PARAM>12</PARAM><FONTFAMILY><PARAM>Geneva</PARAM>>The
local cable company (which has been trenching the streets just
>about everywhere for the past year) is mumbling something about cable
>Internet access coming to San Diego by the end of the year. They're
>tossing around prices like $19.95 or $29.95/mo flat rate, modem
>included.
></FONTFAMILY></X-FONTSIZE><X-FONTSIZE><PARAM>12</PARAM><FONTFAMILY><PA=
RAM>Geneva</PARAM>
Wow. Add that to my monthly $33 bill from TCI, and I'd be sending $60
or so to TCI every month. Unless they upgrade their service so that we
get decent throughput (imagine what a few hundred subscribers would do
to your throughput - it _could_ happen here in Silicon Valley), the
service would
probably end up slower than 28.8 dialup now. On the other hand, in San
Jose, TCI runs the very old double-coax system to people's houses,
meaning that you need a switch box to get from the local-access
channels to the interesting cable channels (such as CNN, etc). Perhaps
a move to cable modem might get them off the duff and get us an
upgrade.
I also have noticed that last October PacBell ran fiber cables
throughout the neighborhoods in the area. They are _still_ not
connected to anything. They did do the job of getting a higher price
for a sellout, though.
Might the cable company be using a similar ploy to increase their
value for a takeover?
Jack Brindle
ham radio: wa4fib/6
internet: jackb@apple.com</FONTFAMILY></X-FONTSIZE>
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--Cyberdog-AltBoundary-0006D067--
------------------------------
Date: Wed, 28 Aug 1996 14:29:09 +1100
From: sampson@ripper.stl.dec.com (Phil Sampson, StorageBU Technical Consultant
Australia +61-2-561-5125 DTN: 730-5125)
Subject: Standalone router PTP - Wireless lan cards FHSS
Hi all,
I have been watching the recent thread and here is my 2c worth.
For the last year I have had a link from home to another mates QTH using
Proxim FHSS wireless LAN ISA cards. We join the two ethernet LANS with
a couple of old 386sx boxes as routers. Each contains an ISA Wireless 2Mbps
NIC, Phil Karn's NOS (dos based), an NE2000 clone, floppy drive an 1MB ram,
mono card, no monitor, keyboard.
2 locally sourced Partial parabolic antenna (25dB each, since found it's
overkill for 1KM) are roughly pointed at each other and internally mounted
in the roof and firing thru concrete tiles roughly line of site.
(initially we proved the point using corner reflectors made up from cardboard
boxes and kitchen foil and used that for months before purchasing the
parabolas
which were MDDS wide band types)
The NOS has an NE2000 packet driver, and shim for the supplied NDIS driver
from the LAN NIC manufacturer. Most of the NIC RF components are covered by
a metal shield which I haven't pulled off yet with a view to changing freq.
Initially we operated under a field test licence, but now things have changed.
Since the Spectrum authority here (Australia) just deregulated the 2400Mhz LAN
from a licence point of view, the proxim cards (mine are DEC roamabout)
fall into a freq segment where you can run 4W eirp. (cards are 100mw).
Even with the shims and 386, I can get 60-80KBYTE/sec depending on protocol
(using TCP/IP). This is enough to do Xwindows, Raw speach (netphones), play
mpegs and do backups. One of us has an ISP connection and squid http cache,
firewall, masquerade with demand dial ppp via FreeBSD and the other goes
along for the ride.
For point to point this works very well. I think I'd get more thruput if
we had Linux instead of DOS/NOS/shims and am looking for Proxim drivers. (I
have
seen some drivers for the AT&T wavelan).
For watchdog (which never fires coz I don't get mail from it) we use a script
on one of the local FreeBSD systems pinging the RF router, and X-10 powerline
carrier modules to cycle the power on the 386 router in the shed if it stops
answering.
I have JNOS on Linux to the local 4800bps Sydney lan but somehow, getting the
2400Mhz link up and using it is more fun... If we can't speed things up in
the Ham space, I can't see where my incentive is to stick it out.
The NICS are about AUD$800 a year ago and the antenna about $180 (build your
own). The PC bits are whatever you can get them for and the software is free.
Watching this thread with interest.
Phil Sampson
VK2JNT
------------------------------
End of TCP-Group Digest V96 #175
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