Fwd: [wl2k--emcomm] High speed network, Winlink products
FWIW... ---------- Forwarded message ---------- From: mikeaburton@outlook.com [wl2kemcomm] <wl2kemcomm@yahoogroups.com> Date: Wed, Jan 21, 2015 at 3:01 PM Subject: [wl2kemcomm] High speed network, Winlink products To: wl2kemcomm@yahoogroups.com This was also in the ARES E-newsletter. Worth noting is that there are WinLink products and users on this Emcomm LAN. It is based on PtP distribution, with a some Point to multi-point. It differs from broad band hamnet in that it is all stock Ubiquiti products based non-modified, does not use node like connectivity, and no part 97 restrictions. But those BBHN out there are doing the same thing as far as product distribution, just the Baja-San Diego network went a different direction. Both work in the same venue of IP client-server distribution. Winlink products include HF gateway with auto forwarding that USA side can take advantage of. RMS Express PtP telnet users. RMS Relay Post Office in service. Differeing packet gateways using LAN to reach common RMS Relay. --------------------------------------------------------------------------------------------------- COPY FROM NEWSLETTER Update on San Diego/Baja High Data Rate Emergency Network There is progress on the HDRENS (High Data Rate Emergency Network of San Diego) project: Our team has just completed installation of a new high data rate relay point on the University of California, San Diego tower, located on Mt. Soledad, California. There are two dishes at the top of the main structure of the tower; one is for a 5 GHz link from our central radio room location in Coronado, California and one 2.4 GHz dish serves as a relay looking out into our "client territory." Both dishes are on rotators. The 2.4 GHz link has been positioned to serve a number of our active ARES associates including our ARES EC Bruce Kripton, KG6IYN. The TX/RX data rates we currently measure on the 5 GHz link are in excess of 50 Mbps. Our long range plan is to continue to expand the high data rate network up the coast and inland to provide high data rate private LAN backup for more and more emergency communications clients including those San Diego County hospitals that choose to participate. The Mt. Soledad installation will now serve as a key relay point as we reach out further into the lower and central San Diego County region. We continue to share the high data rate emergency network with our sister organization, CREBC, in Baja California, Mexico. -- Ed Sack, W3NRG, Coronado, California [For background, see High Speed Networking: Time to Net its Benefits, pp. 80-81, April 2014 QST. - ed.]
Very cool... We have joked about mounting a dish on a rotator, but never actually done it permanently. It would solve a few problems and be fun for testing long shots. But then it could create a few problems too: obviously, increased expense; a strong gust of wind could turn the rotor, bring down the link, and eliminate our ability to remotely steer the rotor back into place; and the rotor would need to be geared low for precision aiming. Tom KD7LXL On Wed, Jan 21, 2015 at 3:10 PM, Bill Vodall <wa7nwp@gmail.com> wrote:
FWIW...
---------- Forwarded message ---------- From: mikeaburton@outlook.com [wl2kemcomm] <wl2kemcomm@yahoogroups.com> Date: Wed, Jan 21, 2015 at 3:01 PM Subject: [wl2kemcomm] High speed network, Winlink products To: wl2kemcomm@yahoogroups.com
This was also in the ARES E-newsletter. Worth noting is that there are WinLink products and users on this Emcomm LAN. It is based on PtP distribution, with a some Point to multi-point. It differs from broad band hamnet in that it is all stock Ubiquiti products based non-modified, does not use node like connectivity, and no part 97 restrictions. But those BBHN out there are doing the same thing as far as product distribution, just the Baja-San Diego network went a different direction. Both work in the same venue of IP client-server distribution.
Winlink products include HF gateway with auto forwarding that USA side can take advantage of. RMS Express PtP telnet users. RMS Relay Post Office in service. Differeing packet gateways using LAN to reach common RMS Relay. ---------------------------------------------------------------------------------------------------
COPY FROM NEWSLETTER
Update on San Diego/Baja High Data Rate Emergency Network
There is progress on the HDRENS (High Data Rate Emergency Network of San Diego) project: Our team has just completed installation of a new high data rate relay point on the University of California, San Diego tower, located on Mt. Soledad, California. There are two dishes at the top of the main structure of the tower; one is for a 5 GHz link from our central radio room location in Coronado, California and one 2.4 GHz dish serves as a relay looking out into our "client territory." Both dishes are on rotators. The 2.4 GHz link has been positioned to serve a number of our active ARES associates including our ARES EC Bruce Kripton, KG6IYN.
The TX/RX data rates we currently measure on the 5 GHz link are in excess of 50 Mbps. Our long range plan is to continue to expand the high data rate network up the coast and inland to provide high data rate private LAN backup for more and more emergency communications clients including those San Diego County hospitals that choose to participate.
The Mt. Soledad installation will now serve as a key relay point as we reach out further into the lower and central San Diego County region. We continue to share the high data rate emergency network with our sister organization, CREBC, in Baja California, Mexico. -- Ed Sack, W3NRG, Coronado, California
[For background, see High Speed Networking: Time to Net its Benefits, pp. 80-81, April 2014 QST. - ed.]
_______________________________________________ PSDR mailing list PSDR@hamwan.org http://mail.hamwan.org/mailman/listinfo/psdr_hamwan.org
Pointing the dish could be accomplished over a much lower rate and more robust radio link. On Wed, Jan 21, 2015 at 3:47 PM, Tom Hayward <tom@tomh.us> wrote:
Very cool... We have joked about mounting a dish on a rotator, but never actually done it permanently. It would solve a few problems and be fun for testing long shots.
But then it could create a few problems too: obviously, increased expense; a strong gust of wind could turn the rotor, bring down the link, and eliminate our ability to remotely steer the rotor back into place; and the rotor would need to be geared low for precision aiming.
Tom KD7LXL
On Wed, Jan 21, 2015 at 3:10 PM, Bill Vodall <wa7nwp@gmail.com> wrote:
FWIW...
---------- Forwarded message ---------- From: mikeaburton@outlook.com [wl2kemcomm] <wl2kemcomm@yahoogroups.com> Date: Wed, Jan 21, 2015 at 3:01 PM Subject: [wl2kemcomm] High speed network, Winlink products To: wl2kemcomm@yahoogroups.com
This was also in the ARES E-newsletter. Worth noting is that there are WinLink products and users on this Emcomm LAN. It is based on PtP distribution, with a some Point to multi-point. It differs from broad band hamnet in that it is all stock Ubiquiti products based non-modified, does not use node like connectivity, and no part 97 restrictions. But those BBHN out there are doing the same thing as far as product distribution, just the Baja-San Diego network went a different direction. Both work in the same venue of IP client-server distribution.
Winlink products include HF gateway with auto forwarding that USA side can take advantage of. RMS Express PtP telnet users. RMS Relay Post Office in service. Differeing packet gateways using LAN to reach common RMS Relay.
---------------------------------------------------------------------------------------------------
COPY FROM NEWSLETTER
Update on San Diego/Baja High Data Rate Emergency Network
There is progress on the HDRENS (High Data Rate Emergency Network of San Diego) project: Our team has just completed installation of a new high data rate relay point on the University of California, San Diego tower, located on Mt. Soledad, California. There are two dishes at the top of the main structure of the tower; one is for a 5 GHz link from our central radio room location in Coronado, California and one 2.4 GHz dish serves as a relay looking out into our "client territory." Both dishes are on rotators. The 2.4 GHz link has been positioned to serve a number of our active ARES associates including our ARES EC Bruce Kripton, KG6IYN.
The TX/RX data rates we currently measure on the 5 GHz link are in excess of 50 Mbps. Our long range plan is to continue to expand the high data rate network up the coast and inland to provide high data rate private LAN backup for more and more emergency communications clients including those San Diego County hospitals that choose to participate.
The Mt. Soledad installation will now serve as a key relay point as we reach out further into the lower and central San Diego County region. We continue to share the high data rate emergency network with our sister organization, CREBC, in Baja California, Mexico. -- Ed Sack, W3NRG, Coronado, California
[For background, see High Speed Networking: Time to Net its Benefits, pp. 80-81, April 2014 QST. - ed.]
_______________________________________________ PSDR mailing list PSDR@hamwan.org http://mail.hamwan.org/mailman/listinfo/psdr_hamwan.org
_______________________________________________ PSDR mailing list PSDR@hamwan.org http://mail.hamwan.org/mailman/listinfo/psdr_hamwan.org
-- ------------------------------ John D. Hays K7VE PO Box 1223, Edmonds, WA 98020-1223 <http://k7ve.org/blog> <http://twitter.com/#!/john_hays> <http://www.facebook.com/john.d.hays>
On Wed, Jan 21, 2015 at 3:52 PM, John D. Hays <john@hays.org> wrote:
Pointing the dish could be accomplished over a much lower rate and more robust radio link.
Sure. My hypothetical also assumes no link redundancy. So far HamWAN has redundant links, so this wouldn't be an issue. But let's explore the robust link option... Do you know where we might get a medium-speed link? 100kbps over UHF would be ideal, but I don't have the hardware to do it. ;-) Tom KD7LXL
For a 100kbps link on 70cm, check out the inexpensive ($25) "moteino" digital 70cm transceiver at http://lowpowerlab.com". These have only a 0.1 watt FSK transmitter, with settable data rates between about 9600bps and 600kbps, using signal bandwidths from about 10khz to 600khz. I see a range at 70kbps of about 1/4 mile between two mobile antennas. For longer range, I will soon receive an inexpensive ($50) Chinese 3 to 5 watt power amplifier. Search ebay.com for " 433mhz fsk radio amplifier 3-5W" and you'll see them. There is also an inexpensive 7-watt power amplifier from http://www.minikits.com.au/70cm-7W-Amplifier. There is also a more expensive ($215) 30 watt amplifier, 7025PA, from Down East Microwave (http://fwfvq.tehfm.servertrust.com/category-s/1836.htm). Down East Microwave engineer says it should work fine with FSK, but I haven't tried it. Griff W5VWP On 01/21/2015 04:01 PM, Tom Hayward wrote:
On Wed, Jan 21, 2015 at 3:52 PM, John D. Hays <john@hays.org> wrote:
Pointing the dish could be accomplished over a much lower rate and more robust radio link.
Sure. My hypothetical also assumes no link redundancy. So far HamWAN has redundant links, so this wouldn't be an issue.
But let's explore the robust link option... Do you know where we might get a medium-speed link? 100kbps over UHF would be ideal, but I don't have the hardware to do it. ;-)
Tom KD7LXL
_______________________________________________ PSDR mailing list PSDR@hamwan.org http://mail.hamwan.org/mailman/listinfo/psdr_hamwan.org
Griff, Just be careful there. The current FCC regs for 70cm only allow 56 kilobauds and FSK would be one bit per baud. You are also limited to 100 Khz bandwidth. See http://www.w5yi.org/page.php?id=139 97.307(f)6 and http://www.w5yi.org/page.php?id=137 (70cm Emission Types) Tom was chiding me on a radio being built that I am involved in. On Wed, Jan 21, 2015 at 4:41 PM, Griff <griff@thehamlins.org> wrote:
For a 100kbps link on 70cm, check out the inexpensive ($25) "moteino" digital 70cm transceiver at http://lowpowerlab.com". These have only a 0.1 watt FSK transmitter, with settable data rates between about 9600bps and 600kbps, using signal bandwidths from about 10khz to 600khz. I see a range at 70kbps of about 1/4 mile between two mobile antennas. For longer range, I will soon receive an inexpensive ($50) Chinese 3 to 5 watt power amplifier. Search ebay.com for " 433mhz fsk radio amplifier 3-5W" and you'll see them. There is also an inexpensive 7-watt power amplifier from http://www.minikits.com.au/70cm-7W-Amplifier. There is also a more expensive ($215) 30 watt amplifier, 7025PA, from Down East Microwave (http://fwfvq.tehfm.servertrust.com/category-s/ 1836.htm). Down East Microwave engineer says it should work fine with FSK, but I haven't tried it.
Griff W5VWP
On 01/21/2015 04:01 PM, Tom Hayward wrote:
On Wed, Jan 21, 2015 at 3:52 PM, John D. Hays <john@hays.org> wrote:
Pointing the dish could be accomplished over a much lower rate and more robust radio link.
Sure. My hypothetical also assumes no link redundancy. So far HamWAN has redundant links, so this wouldn't be an issue.
But let's explore the robust link option... Do you know where we might get a medium-speed link? 100kbps over UHF would be ideal, but I don't have the hardware to do it. ;-)
Tom KD7LXL
_______________________________________________ PSDR mailing list PSDR@hamwan.org http://mail.hamwan.org/mailman/listinfo/psdr_hamwan.org
_______________________________________________ PSDR mailing list PSDR@hamwan.org http://mail.hamwan.org/mailman/listinfo/psdr_hamwan.org
-- ------------------------------ John D. Hays K7VE PO Box 1223, Edmonds, WA 98020-1223 <http://k7ve.org/blog> <http://twitter.com/#!/john_hays> <http://www.facebook.com/john.d.hays>
participants (4)
-
Bill Vodall -
Griff -
John D. Hays -
Tom Hayward