SCCARC Talk on BPL, Spectrum Refarming, IRLP, Echolink, Ham Radio Deluxe, VoIP, and Cell phones.

By Jeff Liebermann June 18, 2010

http://802.11junk.com/jeffl/SCCARC-talk-2010-06-18/

· BPL

o What is it?

o Mostly rural. 5500 customers.

o 256Kb symmetrical. $35/mon. Up to 3Mb/s for more money.

o Atheros – backhaul for power companies. Appliance control.

o IBM gets money to manage system.

o IBEL.com

o Cable and telcos follow behind some BPL installations.

· http://www-03.ibm.com/press/us/en/pressrelease/25979.wss
· http://www-03.ibm.com/press/us/en/pressrelease/26728.wss
· http://urgentcomm.com/networks_and_systems/news/atheros-powerline-data-chips-20100616/
· http://www.dslreports.com/shownews/Powerline-Broadband-Just-Wont-Die-102129
· http://www.theregister.co.uk/2009/02/20/ibm_ibec_rural_broadband/
· http://www.networkworld.com/news/2009/021809-ibm-broadband.html
 
 
· Jan 1, 2014 Changes
o Not end of world, which is Dec 21, 2012
o Narrow banding. 2nd time (1972?)
o 25Khz to 12.5, 6.25 or TDMA.
o No conversions or retrofits.
o No change to low band 30-50Mhz.
o No change to ham, most paging, or FRS.
o ???? GMRS and MURS.
o All commercial and public safety.
o Most radios made in the last 6-8 hears are already compatible.
o Plenty of surplus radios will be on the market, all suitable for ham use.
o Club MSF-5000.
o http://www.ojp.usdoj.gov/nij/topics/technology/communication/fcc-narrowbanding.htm
 
· Echolink, IRLP, Ham Radio Deluxe and VoIP. How it works, NOT how to use it.
o Explain differences:
· Echolink: PC to PC, repeater, remote base, or conference bridge.
· IRLP: Repeater to Repeater
· HRD: Remote control of station.
· VoIP: Talk over the internet. Skype versus SIP phones.
o Explain K6BJ map and system.
o http://802.11junk.com/jeffl/SCCARC-talk-2010-06-18/K6BJ-System-Diagram.jpg
o Echolink:
· Demo on laptop
· Demo on iPod Touch (?)
o Discuss Delay issues:
· Internet latency.
· Compression/CODEC delays.
· Dropout and turn around time.
· Wait until about 1-2 seconds AFTER carrier drops.
o IRLP
· Demo on handheld. Monitor log file live?
· http://status.irlp.net/
· K6BJ 3318, W6WLS-SVLY 7228, W6WLS 3228, N6SPD 3234
· Club net uses reflector on 9225. Explain reflector.
o EchoIRLP
· To call Echolink node, use * id_number. 
· AE6KS = *17726
· http://www.nwham.com/repeaters/echolink/index.php
o Ham Radio Deluxe (remote HF base)
· http://802.11junk.com/k6bj/
· Network diagram
o VoIP
· Skype versus SIP
· Show various devices.
 
· Cellular and tower
o 1G, 2G, 3G, and 4G.
o Range vs power vs bandwidth
o Show old phones. Some history.
o SCZ maps showing cell and tower locations. Note lack of coverage in many areas of the county.
o http://802.11junk.com/cellular/Wireless-Cell-Sites.jpg
o http://802.11junk.com/cellular/index.html
o Tower Ordinance 13.10.660 thru 13.10.668
· http://www.codepublishing.com/ca/santacruzcounty/
· 55ft(?) max including antennas
· Hams are mostly exempt.
o Micro and Nano Cellular.
· http://www.codepublishing.com/ca/santacruzcounty/
· http://www.wireless.att.com/learn/why/3gmicrocell/
o Cellular Repeaters (Zboost)
· http://www.wi-ex.com/homeOffice.aspx