Puget Sound Data Ring Bart Kus AE7SJ - [email protected] HamWAN.org Logical view of network Uplink Path Ring Node Distribution Node (3-sector) Why? Why do you use FM repeaters when you have a cell phone with you? They connect you to a different community
In a lower pressure way Do not require contracts or corporations Its interesting to play with their features Theyre available when other services fail Those who build them love the challenge Why? Life has advanced into the digital domain Amateur Radio should be leading technology, not lagging! Remember the early days? Do I really need to convey the value of all the IP-based software out there? Telephony Text messaging File sharing and everything else!
Why? Amateurs are in a uniquely good position to be successful at pulling this off! Leverage existing repeater sites Existing club infrastructure to rally for the cause Some existing financial systems to fund it Access to non-ISM frequencies Existing expertise in running radio systems A pool of tech-savvy early adopters / beta testers Why? Heres the future of radio communications, and amateurs can be on the other end of that device
How? 5GHz band Plenty of spectrum Easy to achieve spatial diversity Low atmospheric attenuation Cheap and available hardware The Puget Sound has a unique geometry By using a ring design, coverage comes from all angles obstacles less of a problem How?
MikroTik - Metal 5SHPn Up to 115Mbit aggregate Up to 1.3W transmitter Solves hidden node problem Only 11.5W consumption Only $99 Serious features A Sweet Control UI
A Typical Ring Node Design Left Ring Right Ring Downlink to Distribution Node And / Or Sector Antenna A Typical Distribution Node Design Ring Uplink Three 120deg
access sectors A Typical Client Node Design Distribution Uplink A Typical Ring Node Cost Description Price Quantity Cost Metal 5SHPn
$150 CAT5 Cabling ~$50 1 $50 TOTAL $1251 A Typical Client Node Cost
Description Price Quantity Cost Metal 5SHPn $99 1 $99
5GHz 21dBi Dish $45 1 $45 CAT5 Cabling ~$10 1
$10 TOTAL $154 Other units exist: 16dBi dish integrated with 1.25W TX for $94. Just add CAT5! 3 Node Ring + Distribution Cost Description Price Quantity
Cost Ring Node $762 3 $2286 Distribution Node $1251 3
$3753 TOTAL $6039 Thats less than a single IC-7700 And you get to bootstrap the future! I Want YOU To Help
Scout sites Donate money Raise money Talk to your radio club Volunteer your expertise Help deploy equipment Educate those new to IP
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