[arm-allstar] Yaesu DR-1X Interface

Sun Dec 20 04:49:48 EST 2015

David,
Awesome! That's a great idea (DUHHH why didn't I think of that)
In the order of 5v p-p coupled to various impedences via switches.

Thank you,
Sam
KJ6QFS

On Saturday, December 19, 2015, David McGough <kb4fxc at inttek.net> wrote:

>
> How high a drive level (volts) do you need into what impedance?
>
> There are an assortment of inexpensive class-D stereo headphone and
> speaker amps available from China---everything from 1W to 100W and more.
>
> Here are a couple "high power" examples from a US source:
>
> http://www.ebay.com/itm/221449976912
> http://www.ebay.com/itm/221783164907
>
> And, some from China:
>
> http://www.ebay.com/itm/310568397330
> http://www.ebay.com/itm/181164174674
>
>
> 73, David KB4FXC
>
>
> On Sat, 19 Dec 2015, Sam Skolfield wrote:
>
> > +1 I'm also looking for advice on choosing a higher gain device for the
> > output of a URI (for one weird project of mine)
> >
> > On Sat, Dec 19, 2015 at 10:47 PM, Jeff Carlyle KD0QCN <kd0qcn at aecimo.org
> <javascript:;>>
> > wrote:
> >
> > > Doug,
> > >
> > > I am running 12 volt into the URIX, and just to test I cranked the TX
> > > level to 999 and I still have audio that is still so low you can barely
> > > hear it.
> > >
> > > I'm open to suggestions as I have tried everything I can think of.
> > >
> > > Jeff
> > > KD0QCN
> > >
> > > On Dec 20, 2015, at 12:13 AM, Doug Crompton <doug at crompton.com
> <javascript:;>> wrote:
> > >
> > > Jeff,
> > >
> > >  The DR1(x)  needs a lot of TX audio. In the mods I made I used the
> > > built-in amplifier in the DMK-URI and had the TX level set to almost
> max -
> > > like 950. That seemed to work OK. If you are already doing that and
> have
> > > very low audio then I guess yours is different for some reason. Also
> if you
> > > are using 5V to power the additional amp you could try running it from
> the
> > > suggested 12V. In that case you would need to use an external voltage
> to
> > > the opamp pin on the DMK-URI. Refer to the DMK web site for schematics
> and
> > > suggestions. Using 12V you should be able to develop more than enough
> audio.
> > >
> > > Let me know what you finally find.
> > >
> > >
> > >
> > > *73 DougWA3DSPhttp://www.crompton.com/hamradio
> > > <http://www.crompton.com/hamradio>*
> > >
> > >
> > > ------------------------------
> > > From: kd0qcn at aecimo.org <javascript:;>
> > > Date: Sat, 19 Dec 2015 22:29:08 -0600
> > > To: arm-allstar at hamvoip.org <javascript:;>
> > > Subject: Re: [arm-allstar] Yaesu DR-1X Interface
> > >
> > > Hey Doug and All,
> > >
> > > OK, here is where I am on the interface, I followed your how to on
> > > hamvoip, the only thing I did different was I am going high on COS
> polarity
> > > because I didn't have the items necessary to do it and I'm an hour away
> > > from the nearest radio shack.  I set carrierfrom = USB to compensate.
> > > Everything seems to be working fine except I have VERY low TX audio,
> as in
> > > the volume on my test radio is all the way up and can barely hear it.
> Local
> > > speaker audio is fine.  I even turned on the amplifier in the uri as
> > > suggested in the how to. What am I missing?
> > >
> > > Thanks,
> > > Jeff Carlyle
> > > KD0QCN
> > >
> > >
> > > On Nov 30, 2015, at 3:57 PM, Doug Crompton <doug at crompton.com
> <javascript:;>> wrote:
> > >
> > > As I remember the ham I modified it for had tried the back connector
> and
> > > something did not work. I confirmed that again but I forget what didn't
> > > work. I am checking with the other ham and if I find anything out I
> will
> > > let you know. So in the end it was just easier to do the same mod as
> the
> > > DR1.
> > >
> > >
> > >
> > > *73 DougWA3DSPhttp://www.crompton.com/hamradio
> > > <http://www.crompton.com/hamradio>*
> > >
> > >
> > > ------------------------------
> > > From: kd0qcn at aecimo.org <javascript:;>
> > > Date: Mon, 30 Nov 2015 13:07:55 -0600
> > > To: arm-allstar at hamvoip.org <javascript:;>
> > > Subject: Re: [arm-allstar] Yaesu DR-1X Interface
> > >
> > > Doug,
> > >
> > > Thanks for the clarification, would you be so kind as to expand on the
> > > problems you had using the back connector?  I would like to be able to
> > > explain to the club why I need to do it the way you explained vs just
> using
> > > the back connector.
> > >
> > > Thanks,
> > > Jeff
> > > KD0QCN
> > >
> > >
> > > On Nov 30, 2015, at 10:55 AM, Doug Crompton <doug at crompton.com
> <javascript:;>> wrote:
> > >
> > > Jeff,
> > >
> > >  I did go on to modify a DR1X and found problems with using the back
> > > connector. I ended up modifying it the same way as the DR1 and it
> worked
> > > fine with Allstar as a controller. Doing it the way I show in the mod
> works
> > > on both the DR1 and DR1X.
> > >
> > >
> > >
> > > *73 DougWA3DSPhttp://www.crompton.com/hamradio
> > > <http://www.crompton.com/hamradio>*
> > >
> > >
> > > ------------------------------
> > > To: arm-allstar at hamvoip.org <javascript:;>
> > > From: kd0qcn at aecimo.org <javascript:;>
> > > Date: Mon, 30 Nov 2015 08:32:10 -0600
> > > Subject: Re: [arm-allstar] Yaesu DR-1X Interface
> > >
> > > Doug,
> > >
> > > I did read the howto on hamvoip.org.  I was really wanting to use the
> 15
> > > pin connector on the back of the DR-1X.  You stated in the howto that
> you
> > > did not have access to the DR-1X and you were unsure of how to
> interface
> > > with that 15 pin.  That is what I'm trying to figure out as we are
> trying
> > > to avoid cutting into the main harness inside the repeater.  Really
> all I
> > > need is something as simple as pin 1 of URI to pin 2 of DR-1X etc...
> I was
> > > hoping someone had done this already as I hate to re-invent the
> proverbial
> > > wheel.
> > >
> > > 73,
> > > Jeff
> > > KD0QCN
> > >
> > > On 11/30/2015 1:42 AM, Doug Crompton wrote:
> > >
> > > Did you read the howto on the hamvoip.org web page?
> > >
> > >
> > >
> > > *73 Doug WA3DSP http://www.crompton.com/hamradio
> > > <http://www.crompton.com/hamradio>*
> > >
> > >
> > > > From: kd0qcn at aecimo.org <javascript:;>
> > > > Date: Sun, 29 Nov 2015 23:57:48 -0600
> > > > To: arm-allstar at hamvoip.org <javascript:;>
> > > > Subject: [arm-allstar] Yaesu DR-1X Interface
> > > >
> > > > Hi All,
> > > >
> > > > My club has put me in charge of setting up a RPi2 with Allstar and
> > > interface that with our DR-1X repeater using a DMK URI. The problem I
> am
> > > having is I am seeing some information on the DR-1 interface but not
> on the
> > > DR-1X. The DR-1X uses the 15 pin plug on the back of the repeater. We
> are
> > > not concerned with keeping the digital side of the repeater at this
> point.
> > > Has anyone done this interface and might possibly have the schematic
> of how
> > > you did it, or even something as simple as what pins you used?
> > > >
> > > > Thanks in advance for any help!
> > > >
> > > > Jeff
> > > > KD0QCN
> > > > _______________________________________________
> > > >
> > > > arm-allstar mailing list
> > > > arm-allstar at hamvoip.org <javascript:;>
> > > > http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
> > > >
> > > > Visit the BBB and RPi2 web page - http://hamvoip.org
> > > >
> > >
> > >
> > > _______________________________________________
> > >
> > > arm-allstar mailing listarm-allstar at hamvoip.orghttp://
> lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
> > >
> > > Visit the BBB and RPi2 web page - http://hamvoip.org
> > >
> > >
> > >
> > > _______________________________________________ arm-allstar mailing
> list
> > > arm-allstar at hamvoip.org <javascript:;>
> > > http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar Visit
> the
> > > BBB and RPi2 web page - http://hamvoip.org
> > >
> > > _______________________________________________
> > >
> > > arm-allstar mailing list
> > > arm-allstar at hamvoip.org <javascript:;>
> > > http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
> > >
> > > Visit the BBB and RPi2 web page - http://hamvoip.org
> > >
> > >
> > > _______________________________________________ arm-allstar mailing
> list
> > > arm-allstar at hamvoip.org <javascript:;>
> > > http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar Visit
> the
> > > BBB and RPi2 web page - http://hamvoip.org
> > >
> > > _______________________________________________
> > >
> > > arm-allstar mailing list
> > > arm-allstar at hamvoip.org <javascript:;>
> > > http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
> > >
> > > Visit the BBB and RPi2 web page - http://hamvoip.org
> > >
> > >
> > > _______________________________________________ arm-allstar mailing
> list
> > > arm-allstar at hamvoip.org <javascript:;>
> > > http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar Visit
> the
> > > BBB and RPi2 web page - http://hamvoip.org
> > >
> > > _______________________________________________
> > >
> > > arm-allstar mailing list
> > > arm-allstar at hamvoip.org <javascript:;>
> > > http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
> > >
> > > Visit the BBB and RPi2 web page - http://hamvoip.org
> > >
> > >
> > > _______________________________________________
> > >
> > > arm-allstar mailing list
> > > arm-allstar at hamvoip.org <javascript:;>
> > > http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
> > >
> > > Visit the BBB and RPi2 web page - http://hamvoip.org
> > >
> >
> >
> >
> >
>
> _______________________________________________
>
> arm-allstar mailing list
> arm-allstar at hamvoip.org <javascript:;>
> http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
>
> Visit the BBB and RPi2 web page - http://hamvoip.org
>

-- 
KJ6QFS
Sam Skolfield
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