I suspect you could use this for your needs:
http://app-rpt.qrvc.com/
and a USB-equipped Linux capable system - doesn't need much horsepower since
you're not forced to additionally compress the audio.
I suggest using a small 'embedded' type Linux-running system, like the
Ubiquiti Routerboard/Routerboard Pro. They're inexpensive and rock solid.
OpenWRT has packages for what you need to run Asterisk.
Non-obvious awesomeness of this:
1) You can also use it as the controller for your backhaul IP link
(just add Atheros chipset MiniPCI card). You can add the minipci cards,
prebuilt pigtails/coax, and 25+ dBi gain 5ghz antennas (assuming perfectly
clear LOS between the repeater sites) for about $100/endpoint.
2) You're basically using a full blown phone switch/pbx controller
to run your radio. Autopatch? Got it. Linking? Got it. Voice (cooler
than dtmf!) control? Got it. Basically its only limited by your ability to
configure Asterisk.
3) add another USB device and you're controlling another radio, with
the same or a completely different configuration/usage of the first...
Calculatons:
Ubiquiti Routerstation: $69
USB header connector: $5
USB audio device: $10
CM9 802.11a/b/g adapter: $35
UFL to N-F pigtail: $10
26 dBi 5.8 GHz parabolic: $55
-----------------------------------
Total (per end): $184
Just add LMR-400, audio cables, and have a blast....
JS
> -----Original Message-----
> From: Repeater-Builder@yahoogroups.com [mailto:Repeater-
> buil...@yahoogroups.com] On Behalf Of Ethercrash
> Sent: Monday, March 09, 2009 9:43 AM
> To: Repeater-Builder@yahoogroups.com
> Subject: [Repeater-Builder] Split site link via IP
>
> My repeater group is considering building split-site 6m machine. As an
> inter-site link, I was thinking of using some sort of VOIP arrangement
> via the internet. I'm curious if anyone has tried something like this:
>
> My idea is to use a point-to-point, private link (i.e. not IRLP or
> Echo) to pump audio and maybe even some signaling between sites. The
> receive site would consist of the receive radio, controller (most
> likely an Arcom), and a PC to do the encoding/streaming. The transmit
> site would consist of a PC to decode the audio stream, a PL decoder for
> TX logic, and the TX radio. The basic premise would be to take audio
> from the RX (PL filtered), fed thru the controller, mixed with link PL,
> and fed to the PC's audio input. The PC then streams the audio over
> the internet to the RX site PC, where it is decoded and fed to the TX
> radio, which will be keyed by a PL decoder (provided the IP
> encode/decode process hasn't mangled the PL).
>
> Whew... Now, question is: will it work? Or more properly, has anyone
> made this work? I'm going to try it on a small scale just to prove
> concept, but I'm curious if anyone has tried this already. My
> intention is to use something along the lines of Winamp with Shoutcast
> or Windows Media Encoder to stream the audio. I'd rather find a Linux-
> based CLI encoder if such an animal exists. I had thought about using
> IRLP nodes as endpoints, but IRLP policy would preclude that.
>
> Thoughts? Encouragement? FTW is he THINKING?!?! ;) I'd be interested
> in the group's thoughts, and I'll report the results of my experiments.
>
> Thanks & 73,
> Brian, N4BWP
>
>
>
> ------------------------------------
>
>
>
> Yahoo! Groups Links
>
>
>
