Low Cost Wireless Access Onno W Purbo onno itb

Low Cost Wireless Access Onno W. Purbo onno@itb. ac. id onno@indo. net. id June 1999

Focus z. Experience in Building an AII. z. Low Cost Wireless. Technology To Educate Indonesia. Low cost is the real challenge

Outline z. References z. Historical Perspective z. Low Cost Internet Access.

References. . zhttp: //home. pages. de/~flexnet/ zhttp: //www. tapr. org/ zhttp: //www. packetradio. com/ zftp: //ftp. ucsd. edu/hamradio/packet/ zhttp: //hydra. carleton. ca/ zhttp: //www. amsat. org/ zjoin various mailing list & newsgroup for discussions

Indonesian List z. YBNET-L@ITB. ac. id ymail to majordomo@itb. ac. id ymessage “subscribe ybnet-l” yplease confirm on request from majordomo zsysop-l@itb. ac. id ymail to majordomo@itb. ac. id ymessage “subscribe sysop-l” yplease confirm on request from majordomo

Indonesia Topology Jan. 1993

AI 3 Indonesia WIDE APAN AI 3 Indonesia CA*net 3 Trans. PAC STARTAP S-One / Singa. REN IIX v. BNS

Success Factor z. Community based development. z. Human Resource Development y. Culture! y. Shifting mind set! z. Self-financing.

Internet Access Tech

Assumption z. PC Multimedia Available. . z. VHF / UHF Rig Available. . z. You have Rp. 30. 000 (US$3) in your pocket. .

Sound Card Packet Radio

Sound Card Packet Radio z. Spec: y 1200 -9600 bps y. PC + Sound Card + Radio z. URL: yhttp: //home. pages. de/~flexnet/ z. Search Internet: (Keyword) yflexnet

Sound. Card Connection z Computer z Radio / Rig / HT z Mic PC z Speaker HT z Mic HT z PTT

PTT Flex. Net via Serial

PTT Flex. Net via Printer

PTT Flex. Net via MIDI

PTT Flex. Net via VOX

Assumption z. PC DOS Available. . z. VHF / UHF Rig Available. . z. You have Rp. 300. 000 (US$30) in your pocket. .

Bay. Com Packet Radio

Bay. Com Packet Radio z. Spec: y 1200 y. PC 286 + Bay. Com Modem + Radio z. URL: yhttp: //xxx. itb. ac. id/~yc 1 dav/beginner/ yftp: //ftp. ucsd. edu/hamradio/packet/tcpip/ z. Search Internet: (Keyword) ybaycom

Install NOS z/spool/mqueue z/spool/mail z/spool/news z/pub zautoexec. nos zdomain. txt zax 25. com

autoexec. nos zhostname yd 3 fua. ampr. org zax 25 mycall yd 3 fua zip address 44. 132. 136. 10 zattach packet 0 x 60 ax 1 2048 1024 zstart smtp zsmtp gateway 44. 132. 136. 1 zroute add default ax 1 44. 132. 136. 1 zroute add 44. 132. 136/24 ax 1 direct

domain. txt z. Yb 3 bdl. ampr. org. IN zyb 1 hr. ampr. org. IN zyc 1 dav. ampr. org. IN A A A 44. 132. 138. 2 44. 132. 18. 1 44. 132. 80. 1

Activate ax 25. com zax. 25 ydefault COM 1, 1200 bps AFSK. ydefault Txdelay = 200 ms z. Ax 25 -h 500 yincrease Txdelay = 400 ms z termin 0 x 60 yremove ax 25 from memory

Baycom Packet Radio

E-mail software for NOS z. Bdale Messy Mailer (BM. exe) z. PCElm z. Internal NOS BBS

E-mail Setup using BM

BM - DOS setup z. Setup BMRC = a: /bm. rc z. Setup MAILER = a: /bm. exe

BM - bm. rc setup z. Hostname yd 1 abc. ampr. org zuser yd 1 abc zfullname Kabayan zreply yd 1 abc@yd 1 abc. ampr. org zedit ed zsmtp /spool/mail/ zmqueue /spool/mqueue

Assumption z. PC Available. . z. LAN Available. . z. Telp Available. . z. You can pay Rp. 10. 000 (US$1) / hour z. You can buy modem

Shared Web Access

Shared Web Access z. Spec: y 33. 6 Kbps y. PC Windows / Linux / Free. BSD + phone z. URL: yhttp: //www. download. com z. Search Internet: (Keyword) ywingate yproxy ysock

Dial Shared Web Access

Assumption z. PC Available. . z. LAN Available. . z. Telp Available. . z. You can pay Rp. 10. 000 (US$1) / 6 Mbyte mail z. You can buy modem

Virtual Host

Virtual Host z. Spec: y 33. 6 Kbps y. PC Windows / Linux / Free. BSD + phone z. URL: yhttp: //www. download. com z. Search Internet: (Keyword) yvpop ynetgate yavirt

Virtual Host

Assumption z. PC Available. . z. You have Rp. 3. 000 (US$300) in your pocket. . z. You are able to solder. .

Homebrew 64 -200 Kbps

64 -200 Kbps Packet Radio z. Spec: y 64 -200 Kbps y. PC Linux + Homebrew 64 -200 Kbps z. URL: yhttp: //xxx. itb. ac. id/~adnan/

Homebrew 64 -256 Kbps packet radio z. We are prototyping 64 -256 Kbps packet radio network in the lab by adnan@itb. ac. id. z. AX. 25 link layer protocol is used. z. GMSK MX 589 one chip modem is used. z. We drive the modem via parallel port. z. MMIC Minicircuit is being build for transverter.

Block Diagram

Homebrew 64 -200 Kbps Modem

TX & RX Board VHF CB Frequency

Assumption z. You are a large group of people z. You can spare US$3000

Wave. LAN CDMA

Wave. LAN CDMA z. Spec: y 2 Mbps y 5 -10 km distance y. Builtin Router + Ethernet connector z. URL: yhttp: //hydra. carleton. ca

Homebrew 2 Mbps CDMA z. Uses CDMA 2 Mbps card 915 MHz & 2. 4 GHz z. Run on Free. BSD. z. Homebrew antenna (cost ~US$150). z. Max. distance 15 km (use PA for more). z. Most of our high speed MAN using this technology.

Wave. LAN (CDMA)

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