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Broadband-Hamnet™ Forum |
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Subject :Minimum components required to boot..
2012-09-05- 12:53:26
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Subject :Re:HSMM-MESH in Utah..
2012-09-04- 06:09:51
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K7LQH |
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Joined: 2012-09-04- 10:57:29
Posts: 5
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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
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KY9K |
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Joined: 2012-07-07- 23:39:07
Posts: 23
Location: Roy, WA |
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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
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KY9K |
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Joined: 2012-07-07- 23:39:07
Posts: 23
Location: Roy, WA |
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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
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N8OHU |
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Joined: 2012-01-02- 22:09:40
Posts: 12
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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
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Joined: 2024-09-27- 17:28:44
Posts: 0
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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
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Subject :Re:Amplifier Question..
2012-09-03- 08:17:35
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KD4E |
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Joined: 2012-07-29- 13:39:05
Posts: 55
Location: Nevils in SE-Georgia, USA |
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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
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Subject :Re:DIY Antenna's?..
2012-09-03- 05:38:32
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KD4E |
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Joined: 2012-07-29- 13:39:05
Posts: 55
Location: Nevils in SE-Georgia, USA |
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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
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KD4E |
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Joined: 2012-07-29- 13:39:05
Posts: 55
Location: Nevils in SE-Georgia, USA |
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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
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KD4E |
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Joined: 2012-07-29- 13:39:05
Posts: 55
Location: Nevils in SE-Georgia, USA |
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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
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KD4E |
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Joined: 2012-07-29- 13:39:05
Posts: 55
Location: Nevils in SE-Georgia, USA |
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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
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ad9b |
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Joined: 2012-08-24- 22:24:13
Posts: 5
Location: Minneapolis, MN |
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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
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ad9b |
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Joined: 2012-08-24- 22:24:13
Posts: 5
Location: Minneapolis, MN |
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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
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K5KTF |
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Admin |
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Joined: 2010-01-18- 23:04:04
Posts: 266
Location: 5' from this webserver |
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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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Jim K5KTF EM10bm Cedar Park, TX |
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Subject :Re:Welcome, Victorville, Adelanto, Hesperia and SBDO HSMM-MESH Users!..
2012-09-01- 05:12:04
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KA9CQL |
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Joined: 2012-08-03- 17:17:01
Posts: 9
Location: DM14hl, Victorville, CA USA |
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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
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Subject :Asterisk and other services on Raspberry and BeagleBone devices..
2012-08-29- 10:21:16
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Subject :Re:Any virtual tunnel news?..
2012-08-28- 06:43:21
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KA9CQL |
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Joined: 2012-08-03- 17:17:01
Posts: 9
Location: DM14hl, Victorville, CA USA |
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Forum :
Firmware
Topic :
Any virtual tunnel news?
I found this information regarding tunneling Ethernet using dd-wrt routers. Reading the comments this method can be unstable, and is a known problem - perhaps it's what's bugging the HSMM-MESH group's tunneling efforts, as well.
Details: http://www.dd-wrt.com/phpBB2/viewtopic.php?t=71360&highlight=[/url] |
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Subject :Re:Two different antennas on one node..
2012-08-28- 04:41:43
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Joined: 2024-09-27- 17:28:44
Posts: 0
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Forum :
Hardware
Topic :
Two different antennas on one node
I don't see a problem with that. Just like what you'd said: I would still keep it on diversity so you could send and receive on both antennas. I will be setting one up in the same manner as you mentioned within the next couple weeks. |
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Subject :Two different antennas on one node..
2012-08-28- 04:27:23
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AG4BC |
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Joined: 2011-11-02- 16:58:28
Posts: 3
Location: Owenton, KY EM78om |
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Forum :
Hardware
Topic :
Two different antennas on one node
Can I use two different antennas on the same node if I leave Tx and Rx set to diversity? I'm thinking a small omni to support a cluster of nodes and a dish to reach another cluster on the far side of a valley. Same setup over there. The distance is about 3 miles. Thanks Brian, AG4BC
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