[arm-allstar] has anybody bridged dstar to allstar and how?

Mon May 4 23:32:28 EST 2015

Leave D-Star where it is.....!

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From:"R. Wayne" <allstar at controlservers.net>
Date:Mon, May 4, 2015 at 9:23 PM
Subject:Re: [arm-allstar] has anybody bridged dstar to allstar and how?

This is going off topic... the packaged D-STAR repeaters are terrible and have a 1uV receive sensitivity. Only by adding a preamp can one improve. But they also have poor adjacent channel selectivity. Adding a preamp only adds to a problem. With this aside:

We need a quick and easy bridge to D-STAR. We had a user one night hold his microphone up to his D-STAR rig and went back and forth linking it over our 2m repeater. It was a hit on both sides! Our users loved talking with New Zealand and vice versa.

I need a bridge to IRLP. Are there instructions anywhere? I realize that Mr. Cameron is opposed to this but well... unlike his begging for donations to pay for his massive web hosting services that are nothing more than a single dedicated server we are happy to put our own dedicated server online in our own data center. But I need to know how to create the bridge.

Lastly, I’d like a bridge to HF. We would replace the RF squelch circuit on the HF rig with a MICOR-like hysteresis type. But users have expressed a desire to have a periodic net.

Are these possible bridges?

R. Wayne

From: Matthew Pitts 

Sent: Monday, May 04, 2015 7:50 PM

To: ARM Allstar 

Subject: Re: [arm-allstar] has anybody bridged dstar to allstar and how?

I would like to point out that the specifications for both are available and in the case of D-STAR there are functional options that can be used with any radio to create both a repeater and an end user radio, plus there are other radios in development that will support it. I will also point out that some folks take the "experimentation" part of ham radio seriously and that we accept that not everyone will want to use our systems because of that.

Matthew Pitts
N8OHU
AllStar nodes 28713, 28910, 28912, 28913

On May 4, 2015 8:08:18 PM EDT, Fred Moore <fred at fmeco.com> wrote: 

Can you imagine what would have happened to SSB if back in the 60'es you could only get it from one vendor.. ??  
Good comment Doug.. you expressed my feelings exactly...  Fred

On 5/4/15 7:55 PM, Doug Crompton wrote:

Neil, just my opinion. I didn't mean to offend anyone. It is certainly alright to ask. I was just pointing out that the current VHF/UHF digital modes IMHO stink and hams are being sold a bill of goods by the retailers. On the other hand it is always good to know the technical side so I will sit back and listen.

As for Allstar there are a couple of key things on audio quality. One is the fact that usbradio can and often does have serious problems with distorted audio. As long as you are using simpleusb which most if not all BBB and RPi2 user are the considerations are levels and equalization (needing pre/deemphasis). Often a new user needs help with this and we need to offer that. You can get good clean Allstar audio but there is nothing you can do with poor digital audio.

73 Doug
WA3DSP
http://www.crompton.com/hamradio

From: k8it at cac.net
To: arm-allstar at hamvoip.org
Date: Mon, 4 May 2015 19:04:33 -0400
Subject: Re: [arm-allstar] has anybody bridged dstar to allstar and how?

Sorry Doug. I thought I was asking a technical question not a political question. I have heard dstar repeaters with good and bad audio as well. the allstar codec seems to be one of the best however there are some nodes with there levels way off and sound awful. anyway I was asking from a tech side not a political side. I did not realize this was a sensitive topic

73 neil k8it

From: Doug Crompton 

Sent: Monday, May 04, 2015 6:20 PM

To: ARM Allstar 

Subject: Re: [arm-allstar] has anybody bridged dstar to allstar and how?

Anything can be bridged to anything else in numerous ways but I was wondering why you would want to mess up our wonderful Allstar audio with crappy Dstar audio? Personally I don't want to hear any of the current amateur digital audio on Allstar. A circuit is only as good as its worst audio! That being said you can do anything you want but if I hear that kind of audio on any circuit I maintain I would disconnect it unless it is an emergency.

73 Doug
WA3DSP
http://www.crompton.com/hamradio

From: k8it at cac.net
To: arm-allstar at hamvoip.org
Date: Mon, 4 May 2015 16:53:11 -0400
Subject: [arm-allstar] has anybody bridged dstar to allstar and how?

I have a beagle bone black, uri running asterisk v1.2.1

what is the easiest way to bridge to dstar? we do not have any local dstar repeaters so I am thinking about a dstar dongle or modem but how to interface it to asterisk v1.2.1?

thanks  73  neil  k8it

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