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Discussion in 'Amateur Radio News' started by W5LMM, Feb 29, 2012.

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  1. W5LMM

    W5LMM Platinum Subscriber Platinum Subscriber QRZ Page

    HSMM-MESH (High Speed MultiMedia) is a great new technology that we as amateur radio Operators can take full advantage of. It's Wi-Fi on steroids!
    We don't have to be hobbled by part 15 limitations, we can also use OUR frequency allocations, and avoid a majority of interference by part 15 devices.
    Common, inexpensive off the shelf equipment is used and or simply modified for this application.

    HSMM-MESH can enable Hams to have a robust mesh network for uses such as VOIP, callbook lookups, communication, SAR, mapping, EM-Comm, etc. The applications are endless!

    More information at
  2. K0RGR

    K0RGR Premium Subscriber QRZ Page

    Very interesting... I walked past of huge pile of these routers at a surplus store recently, and I knew I would regret it.
  3. KC2UGV

    KC2UGV Ham Member QRZ Page

  4. KT1F

    KT1F Ham Member QRZ Page

  5. AE5HE

    AE5HE Ham Member QRZ Page

    I am one of several amateur radio operators in El Paso, Texas that are experimenting with HSMM-MESH. We have monthly meetings in local parks to experiment with different methods of using the MESH network. On February 19th we were able to use the system to provide support for the annual Susan Komen Race for the Cure. The HSMM system was used to provide video from 9 ip cameras on the 1.8 mile course to race control. It was truly a rewarding experience and we look forward to expanding the support next year. The photo shows 8 active cameras before the start of the event. Video.JPG
  6. KG4RRH

    KG4RRH Ham Member QRZ Page

    "New" technology? I've been running MESH routers for quite sometime, as in like 5+ years, what's "new" about it? I've also never "had" to push the power beyond part 15 limits either and I've got one router that's got almost a 1Km path. Proper antennas.
  7. W5LMM

    W5LMM Platinum Subscriber Platinum Subscriber QRZ Page

    Hi Mike!

    Yes, it is not really "New" to us IT types, however, it's virtually unknown to the Ham community, and I'm trying to get the word out. I'd like to see it mainstream. The more the merrier, and we could all benefit.
  8. W5LMM

    W5LMM Platinum Subscriber Platinum Subscriber QRZ Page

    That's what I'm talking about! GREAT Use! Things like this, and exchange of information during emergencies, mapping, etc. This technology in our toolbag can greatly increase the value of services we offer our communities!
  9. KF7RHB

    KF7RHB Ham Member QRZ Page

    This is coolbeans! I'd heard of the mesh potato, and am looking forward to modding a WRT54G for hinternet funtimes. I can say that even with a good waveguide, part 15 power would not be enough for most applications out in my rugged area. Glad to hear there is a lot of activity in developing this stuff for ham use. Would you please recommend any groups that might help new hams, or hams new to HSMM applications get started?
  10. KF7RHB

    KF7RHB Ham Member QRZ Page

    Ok, your site has happy forums.

    This was a fine basic intro. But the mesh concept is pretty immediate for folks who are familiar with ptp. Essentially it's a high speed automated traffic net system, so it's funny hams haven't jumped on this stuff more and sooner. The WRT54G is an awesome radio, a hackable standard, so a good choice. I was going to flash mine with one of the standard WRT linices, but your mesh firmware distro looks ripping swank. Auto linked ptp mesh, the advertised services, and virtual tunnelling are good ideas. If hams actually want more young folks getting licenses, forget HT's, this is the way to go. It's inexpensive gear, too. Get the highschoolers building these...

    Well done, sir. Thanks for head's up. Frankly, I'm jazzed. +1 convert.
  11. W9IQ

    W9IQ Ham Member QRZ Page

    Hi Lee,

    Do you know the licensing terms of the HSMM-Mesh firmware? I searched the site and I couldn't find any references.

    - Glenn DJ0IQ and W9IQ
  12. KF7RHB

    KF7RHB Ham Member QRZ Page

    Seconded. I saw the trademark and was wondering that, too. It is a gnu-Linux distribution, yes?
  13. W9IQ

    W9IQ Ham Member QRZ Page

    I would assume there are cascading licensing issues since, for example, OLSR appears to be imbedded in HSMM-Mesh.

    - Glenn DJ0IQ and W9IQ
  14. W9IQ

    W9IQ Ham Member QRZ Page

    To save me the hassles of digging through the HSMM-Mesh code, can someone tell me if this solution uses or requires encryption? I see a reference to the highly flawed CQ article on the topic but I cannot easily find a clear answer.

    Thanks in advance,

    - Glenn DJ0IQ and W9IQ
  15. K5KTF

    K5KTF XML Subscriber QRZ Page

    Any Ham can download and use it, free of charge or royalty.
    The TM was to try and keep the use of the acronym for this project specifically (if something says 'HSMM-MESHtm', then it should link up with other HSMM-MESH nodes without problem).
    Thats why we dont even require users to register/login to download the stuff (only to use our forums and to see our googlemap of existing nodes would you need to register/login, but its nice for us to know who is using it, so join up ! :) )

    And for Glenn W9IQ, there is some encryption going on, but its between nodes, and the user doesnt need to deal with it. Its the same as a closed repeater... just to keep the riff-raff out/secure the network, not to obscure the meaning

    Thanks LMM for the shout. I was surprised to see a gent in our forum post that he "saw it on the zed", so I came to look.....

    73 All
  16. W9IQ

    W9IQ Ham Member QRZ Page

    I really support what the HSMM-Mesh team is doing for Amateur Radio and we have probably only scratched the surface as to how to apply this in an Amateur Radio context. I hope the team keeps up the good work.

    However, as a practicing professional in the field of cryptography, I don't buy the "its encrypted to keep the riff-raff out/secure the network" so it is OK for Amateur Radio use. That would be the topics of authentication and perhaps non-repudiation, but not encryption. I know is this a well worn thread on many forums that rages on, mostly by opinionated but ill informed people, so perhaps it is time to ask the FCC for a Request for Ruling to see if they view this type of encryption as violating part 97 or not. There has been the lingering question that if the PSK or equivalent is known within the Amateur Radio circle and therefore known to the FCC, could it be viewed more as a data protocol since all Amateur Radio operators can equally encode/decode the data streams?

    Meanwhile, concerned Amateur Radio operators can side step this entire issue by operating the system as Part 15 devices by not boosting power and not altering the frequencies outside of the normal WiFi spectrum.

    - Glenn DJ0IQ and W9IQ
  17. W5LMM

    W5LMM Platinum Subscriber Platinum Subscriber QRZ Page

    Thanks man! Yeah, that's why I posted it, I just could not believe that many Hams knew nothing about it! It's perfect for what we do, and although you can use part 15 power, once you modify antennas, you are no longer part 15. Besides that, WE as amateur radio licensees have access to frequencies that are not saturated with part 15 traffic! The hardware is extremely inexpensive, the setup is very easy, all together it's a great deal!
  18. W5LMM

    W5LMM Platinum Subscriber Platinum Subscriber QRZ Page

    Glenn: Currently there is NO encryption, however, it has been determined that encryption in this use (for the links) is ALLOWED.
    You are not obscuring anything except access. The encryption keys also do not need to be public either. I had worried about that aspect, and after some research was happy to find that out.

    Encryption is not really that important IF we are using amateur frequencies, and besides that, the connection is NOT "Wi-Fi" it's OLSR and wont interoperate with a WiFi connection from a laptop. It's more like a bridge. All devices using the mesh are Identified by Callsign automatically.

    Obviously people using the system would have to adhere to the standard FCC rules regarding content. It's not to be used as a standard internet connection for music, commerce, etc, but you can use it so send video, pictures, general stuff, communications, software, linking to remote radios/computers, etc... -and obviously no financial transactions.
  19. AE5HE

    AE5HE Ham Member QRZ Page

    I encourage anyone who is interested to get a couple WRT54GL routers and try it. It is a great project for a club. You can start with 2 or 3 routers (nodes) with the stock antennas and experiment with sharing services from your computer or web cam connected on one node to computers connected to the other nodes.

    How about the next time your club does a ham radio presentation or demo, try remote controlling the HF rig in your vehicle through the HSMM-MESH. Now that's cool.

    The possibilities are endless.

  20. KE7VUX

    KE7VUX Ham Member QRZ Page

    I'm all for running it under Part 15, but everyone keeps saying "part 15 power" but doesn't Part 15 limit ERP, not TX wattage?

    So if you add a gain antenna, you must reduce transmit power, right?
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