Southeastern Asterisk Radio Networks » Repeater Controllers

Asterisk Bridge Link Interface (ABLI)

w4wwm — Wed, 17 Sep 2008 00:36:18 +0000

Asterisk app_rpt via USB

OPS — Mon, 17 Sep 2007 05:22:29 +0000

A new low-cost way to interface Asterisk app_rpt to radio can now be used with a USB sound adapter. Some modifications are needed to bring out the PTT, block DC on the audio outputs, and attenuate the receive audio to match the microphone levels.
A new low-cost way to interface Asterisk app_rpt to radio can now be used with a USB sound adapter.
Some modifications are needed to bring out the PTT, block DC on the audio outputs, and attenuate the
receive audio to match the microphone levels.

From the qrvc.com web site the following features are mentioned:

chan_usb radio contains all of the interface code to interface app_rpt to a CM108 based USB sound fob.
In addition it contains DSP code to do CTCSS encoding and decoding, squelch, pre-emphasis and soft
limiting, de-emphasis, and audio level adjustments.

Basically, you only need to make 3 or 4 connections to your radio:

Discriminator audio, de-emphasized audio, or speaker audio.
Transmit audio (direct to modulator, or microphone)
PTT

A new doorway is quickly opening to continue the progression of Asterisk as the way to interconnectivity.

For more details about Asterisk app_rpt visit http://app-rpt.qrvc.com/

and information about Asterisk can be found at http://www.asterisk.org

QRV Communications

OPS — Mon, 25 Jun 2007 14:33:01 +0000

QRV Communications manufactures and sells cards which allow an Asterisk PBX system using the app_rpt application to be connected to FM land mobile two way radio repeaters and half duplex base station radios. We currently offer two types of radio interface cards. The PCI Quad Radio Interface, and the Analog Radio Interface.

The PCI Quad Radio Interface is the 4 port PCI radio interface card designed to work with the app_rpt application included in the open source Asterisk PBX. This card has 4 independent channels and can control a combination of 4 repeaters or 4 base stations concurrently and simultaneously. Each channel is has a CTCSS encoder/decoder, level adjustment pots, and an Audio In/Audio Out/COR/PTT interface suitable for interface to your radio system.

Support

OPS — Wed, 24 Jan 2007 19:37:11 +0000

This is the place to go for support.