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 Subject :Re:Software design questions.. 2012-09-05- 16:29:22 
AD5OO
Admin
Joined: 2010-01-18- 23:05:42
Posts: 37
Location
Forum : General
Topic : Software design questions

> 1) with OLSR HSMM-MESH uses the secure module.  Is that really needed if mesh nets all use the
> same key?

I'm not exactly sure what you're asking, but the intent is to prevent interaction with other OLSR based networks that are not HSMM-MESH compatible otherwise the proper functioning of the network will be compromised.


> 2) Are there alternatives to netmsg to beacon call signs?  DD-WRT doesn't have it; Debian has
> smbclient but that hasn't worked for me yet.

netcat can do it as well, but dd-wrt probably doesn't have that either.  You need to beacon to comply with FCC rules. The exact way you do it is not defined, so as long as you have something that works it should be ok.


73
ad5oo

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 Subject :Re:Minimum components required to boot.. 2012-09-05- 16:10:32 
KY9K
Member
Joined: 2012-07-07- 23:39:07
Posts: 23
Location: Roy, WA
Forum : Firmware
Topic : Minimum components required to boot

Matt, While you might be able to get a WRT54G-v8 working with lots of magic mojo, why not go with a fully supported WRT54GL (or WRT54GS-v3 or lower - even better) as a starting point? The v8 could then get DD-WRT as Glenn suggests and become a bridged-AP to allow normal wireless clients to connect. The savings in aggravation and loss of hair are well worth it. The HSMM-Mesh firmware is already about as small as its going to get. Even if you can get the Kamikaze full development environment working, there isn't much to take out. At most you could likely strip unneeded function out of uClibc and save a couple hundred KB at most. You're looking for size savings of a couple MB. You're still an order of magnitude away. I'm doing all kinds of wacky Mesh-geekery now, but I started with WRT54GS's and GL's. I still use them for interop testing and live work. -Brian/KY9K
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 Subject :Re:Minimum components required to boot.. 2012-09-05- 13:17:01 
KD5MFW
Admin
Joined: 2010-01-18- 23:02:11
Posts: 104
Location
Forum : Firmware
Topic : Minimum components required to boot

The WRT54GL is still for sale, new, on ebay.  So they are not hard to find.  You could save your self a huge amount of time starting with supported hardware.  Working with a WRT54G v8 would be a challenging project for someone with expert hardware and software skills.  If you get it working, let is know how you did it. 

The HSMM-MESH firmware will not fit in the native memory of a WRT54 v8.  There is no easy way to "leave stuff out" to try to make it fit.  If you can't get the firmware image loaded, you can't boot it.

If you want to try get a taste of trying to work with minimal foot print 3rd party firmware in newer Linksys routers, check out dd-wrt for ideas on how one might try.  We do not have a method for loading working HSMM-MESH firmware into a WRT54G v8.

-Glenn

KD5MFW

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 Subject :Minimum components required to boot.. 2012-09-05- 12:53:26 
N8OHU
Member
Joined: 2012-01-02- 22:09:40
Posts: 12
Location
Forum : Firmware
Topic : Minimum components required to boot

Good evening, I have a WRT54G v8 that I would like to set up to run HSMM-Mesh. My plan is to modify the router to support either an SD card or USB stick (possibly both) for the main file system. My question is this; what is the absolute minimum firmware loadout that I can use to accomplish this using the firmware build tools that are available here? I know I should try to find a supported router, but they are getting difficult to find; a recent search I did on "FleaBay" shows an increasing number of newer, "incompatible", routers.

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 Subject :Re:HSMM-MESH in Utah.. 2012-09-04- 06:09:51 
K7LQH
Member
Joined: 2012-09-04- 10:57:29
Posts: 5
Location
Forum : Utah
Topic : HSMM-MESH in Utah

Brad, I'm in South Jordan - somewhat between you and Ed, but a bit to the west. I've got a Linksys that could be used for this, but haven't set up a node yet. I'd be interested in working with you on this. Lance K7LQH
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 Subject :Re:Software design questions.. 2012-09-03- 12:42:46 
KY9K
Member
Joined: 2012-07-07- 23:39:07
Posts: 23
Location: Roy, WA
Forum : General
Topic : Software design questions

Shaun, The v0.6.0 OLSRd in HSMM-Mesh 0.4.3 has a bug in the secure module which prevents interoperability between big/little-endian devices. Based on a report from one of the core HSMM-Mesh developers, that bug has been fixed in the current version of OLSRd (v0.6.3). I've got a development build that integrates the current OLSRd version with the HSMM-Mesh firmware. Drop me a line ( ky9k-at-ky9k.org ) if you'd like a copy. Please keep in mind that mesh nodes running OLSRd v0.6.3 are NOT on-air compatible with nodes running the current v0.4.3 firmware. By default, nodes running the dev-build come preset to a SSID of "DEV-MESH" Using that dev-build I've confirmed interoperability with Ubiquity bullets and the D-Link DIR-825. I expect it will work with any OpenWRT supported device. The trick will be finding a talented UI programmer than can integrate the clean friendly interface of HSMM-Mesh with other devices. Likely the simplest method would be to use the UCI present in current OpenWRT builds with a simple web front end. With the exception of entering the OLSRd key, you can do everything required from the LUCI web interface. -Brian/KY9K
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 Subject :Re:Amplifier Question.. 2012-09-03- 12:25:39 
KY9K
Member
Joined: 2012-07-07- 23:39:07
Posts: 23
Location: Roy, WA
Forum : Hardware
Topic : Amplifier Question

Per the Times Microwave calculator at: http://www.timesmicrowave.com/cgi-bin/calculate.pl 12ft of RG-58 has 3dB of loss at 2400MHz. For receive, no amplifier can provide more S/N than is present on the input. It will simply amplify both signal and noise to a higher level. While you will get a higher signal level, the S/N won't improve. Unless all the mesh nodes are equipped with amplifiers, you'll end up with plenty of transmit power, but won't be able to hear the other mesh nodes talking back to you. Better to put the gain into the antenna and locate the node as close to the antenna as possible. Something like this: http://www.fab-corp.com/product.php?productid=3093&cat=250&page=1 will give you 7.4dBi of gain in a compact (19inch) package. If you go with the spring mount, you'll have a good solid mobile antenna. If you want it movable between vehicles, perhaps mount a waterproof box with the node inside and the antenna on top with one of the 3-4 large magnet mounts intended for mobile HF antennas. You'll then just need to bring in power and Ethernet (possibly via a single cable). That will minimize your lossy coax run and likely give the best performance. KY9K/Brian
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 Subject :Re:Flash Memory Upgrade.. 2012-09-03- 11:44:31 
N8OHU
Member
Joined: 2012-01-02- 22:09:40
Posts: 12
Location
Forum : Hardware
Topic : Flash Memory Upgrade

I'm thinking about doing this with a WRT54G v8, as well as a few other mods I'm seeing here; the one I found at a flea market was a deal that was too good to pass up (I spent $10 on two routers, only one of which was a Linksys).
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 Subject :Re:Asterisk and other services on Raspberry and BeagleBone devices.. 2012-09-03- 08:30:07 
Joined: 2025-07-23- 17:37:32
Posts: 0
Location
Forum : VoIP
Topic : Asterisk and other services on Raspberry and BeagleBone devices

In the following weeks I will be working on setting up a Raspberry Pi up with a mail server and Asterisk. I'll let you know how it turns out.
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Last Edited On: 2012-09-14- 04:41:27 By for the Reason
 Subject :Re:Amplifier Question.. 2012-09-03- 08:17:35 
KD4E
Member
Joined: 2012-07-29- 13:39:05
Posts: 55
Location: Nevils in SE-Georgia, USA
 
Forum : Hardware
Topic : Amplifier Question

These seem a little pricey at $154. but would they be appropriate for mobile use? http://www.rflinx.com/products/amplifiers/2400/ca/


Or maybe this 1w bi-directional amp for $89.95?

http://www.radiolabs.com/products/wireless/wre1000mw.php

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Last Edited On: 2012-09-03- 09:11:03 By KD4E for the Reason
 Subject :Re:DIY Antenna's?.. 2012-09-03- 05:38:32 
KD4E
Member
Joined: 2012-07-29- 13:39:05
Posts: 55
Location: Nevils in SE-Georgia, USA
 
Forum : Hardware
Topic : DIY Antenna's?

Here is an excellent article, though most of the pics did not display for me, the text covers a lot of ground: http://www.freewebs.com/acselectronics/coaxialcolinear1.html
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 Subject :Re:Requesting advice on antenna selection.. 2012-09-03- 05:11:48 
KD4E
Member
Joined: 2012-07-29- 13:39:05
Posts: 55
Location: Nevils in SE-Georgia, USA
 
Forum : Hardware
Topic : Requesting advice on antenna selection

If horizontal polarization is preferred what is available for a horizontally-polarized mobile antenna with a some gain? A collinear array using horizontally-polarized circular elements? If located on top of a van how quickly does that create an easy target for obstacles? We plan a fiberglass rooftop carrier which could help to defend such an antenna. If most of the Mesh nodes are using horizontal polarization then the added loss when communicating with an already-compromised mobile station would be significant. I don't recall the loss number between horizontal and vertical but it can make all the difference.
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 Subject :Re:New Universal Digital Radio.. 2012-09-03- 05:06:22 
KD4E
Member
Joined: 2012-07-29- 13:39:05
Posts: 55
Location: Nevils in SE-Georgia, USA
 
Forum : Hardware
Topic : New Universal Digital Radio

I got on their discussion list - interesting concept. They are hoping to link a variety of now-incompatible formats -- something that is long overdue -- something for which the ARRL should have provided leadership vs promoting proprietary formats long ago. It appears that they hope to integrate some of the content from HSMM-Mesh, D-Star, Winlink2000, APRS (VHF/UHF & HF), PSK, etc. Nothing on HF or VHF can handle the bandwidth of HSMM-Mesh but getting essential text messages to work cross-system would be a leap forward from the fragmented mess out there today. Their all-in-one device will be too expensive at $395. MSRP to deliver the necessary density for meaningful impact - they will need a TNC-like device in the $75. - $125. range to build adequate redundancy into the system.
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 Subject :Re:WRT54G3G-ST.. 2012-09-03- 04:54:24 
KD4E
Member
Joined: 2012-07-29- 13:39:05
Posts: 55
Location: Nevils in SE-Georgia, USA
 
Forum : Hardware
Topic : WRT54G3G-ST

I bought a pair of these and following KF5JIM's lead had them up in no time at all. Now I need to deal with a mobile installation for a trip - then after that getting local buy-in. Any hints as to a preferred and affordable amp/pre-amp to compensate for the weaknesses of mobile ops are welcomed!
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 Subject :Software design questions.. 2012-09-02- 07:58:13 
ad9b
Member
Joined: 2012-08-24- 22:24:13
Posts: 5
Location: Minneapolis, MN
Forum : General
Topic : Software design questions

(apologies if this is a duplicate, but I didn't see the original post so...)


After discovering that the hardware I bought to play with HSMM-MESH is mostly incompatible, I was able to load one standard node on a WRT54G, create a node in Debian linux and connect it, and then flash DD-WRT on a linksys E2000 and then get all three to talk.


Questions:


1) with OLSR HSMM-MESH uses the secure module.  Is that really needed if mesh nets all use the same key?


2) Are there alternatives to netmsg to beacon call signs?  DD-WRT doesn't have it; Debian has smbclient but that hasn't worked for me yet.


Thanks,

Shaun

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 Subject :Re:is dd-wrt compatible with hsmm-mesh.. 2012-09-02- 07:52:05 
ad9b
Member
Joined: 2012-08-24- 22:24:13
Posts: 5
Location: Minneapolis, MN
Forum : Hardware
Topic : is dd-wrt compatible with hsmm-mesh

I am currently running OLSR on a DD-WRT build on a linksys E2000 and it's talking to the other nodes, but it's certainly not standard (issues with the secure module DD-WRT doesn't have one in the OLSR build). Since it's somewhat oddball hardware I'm not sure if it'll take an OpenWRT build or not, and don't want to brick it until I have some other hardware to play with.
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 Subject :Re:Closest node?.. 2012-09-01- 16:04:44 
K5KTF
Admin
Joined: 2010-01-18- 23:04:04
Posts: 267
Location: 5' from this webserver
  
Forum : Austin
Topic : Closest node?

Hi Rick,

Ill do a path profile using your coords and see which you could hit. You can do it too, by following the link in the menu: Web Links-Propagation & Mapping - Hey Whats that (#2). You pick 2 (or more) points on the map, enter in 2412 for Mhz. After clicking a point (or more), click the link next to the point info on the right and if you enter +#### (a number) will give it HAAT for more accuracy.

The 2 I know of closest to you would be CP Hospital (profiler shows no chance) and Bagdad north of LHS (better, but still no-go @2412Mhz).

I was hoping to have a few more nodes up around G-town, but as of yet Williamson County is being slow to get some in the air. I am starting to plan a Mesh Field Day at San Gabriel here real soon to get people to learn about HSMM-Mesh, and try to get more involvement up your way.

If you want, I can let you know when it is, once we get things lined up.

73

Jim

K5KTF

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B-) Jim K5KTF EM10bm Cedar Park, TX :star:
 Subject :Re:Welcome, Victorville, Adelanto, Hesperia and SBDO HSMM-MESH Users!.. 2012-09-01- 05:12:04 
KA9CQL
Member
Joined: 2012-08-03- 17:17:01
Posts: 9
Location: DM14hl, Victorville, CA USA
Forum : High Desert / San Bernardino County, CA
Topic : Welcome, Victorville, Adelanto, Hesperia and SBDO HSMM-MESH Users!

I tried field tests with a unit in the front window of my house, and a mobile 12 dbi directional antenna atop a 12 foot pole. Aiming at the house from down the street, the best distance I could do was 485 feet, with a receive signal level of -92 db. Aiming at another ham's directional antenna (going to confirm gain at his end) I managed to get a -95 db signal at 1,500 feet, when I had direct line of sight. All of the group's testing so far would tend to suggest that we'll need roof-mounted parabolic dishes to span 2 or more miles in these urban settings. Hmmmmmm
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 Subject :Closest node?.. 2012-08-30- 03:28:03 
K5RIK
Member
Joined: 2012-08-30- 08:14:40
Posts: 1
Location
Forum : Austin
Topic : Closest node?

Hi, K5RIK is new to this forum. I am on County Road 245, Williamson county, approx: N 30 46 52  W 97  46 52). Is there a node I can reach from that location?  I am pretty far from the locations shown on the map. Thanks. 73, Rik

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 Subject :Asterisk and other services on Raspberry and BeagleBone devices.. 2012-08-29- 10:21:16 
KC2RBE
Member
Joined: 2012-07-04- 19:07:51
Posts: 1
Location
 
Forum : VoIP
Topic : Asterisk and other services on Raspberry and BeagleBone devices

Has anyone tried to run Asterisk or other services on the Alix, Raspberry, or Beagle platforms on their HSMM networks? With so many cheap low power platforms out there, we may have a flood of possibilities.  Also, is there a standardized format for making services such as IRC, and filesharing available? I was thinking it would be nice to have formatted editable PDFs ready to be filled out for documenting disasters. If anyone can point me toward the right documentation, I would love to check it out.

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