> Date: Fri, 7 Mar 2014 22:32:12 -0800
> From:
cypresstower@yahoo.com
> To: n9jpg.ham@gmail.com;
app_rpt-users@ohnosec.org
> Subject: Re: [App_rpt-users] USB URIx
overmodulation problem?
>
> Assuming one knows about the
rxboost=x setting in the usbradio.conf.
>
> The URI has 2
audio inputs, pin 21 and pin 9. Pin 21 is padded, pin 9 is not.
> Motorola's work well on pin 21, but occasionally it may be
necessary to use
> pin 9 along with some minor modifications to properly
adjust rx audio.
> In this case, look at the RIM from repeater
builder. It has only one audio input
> and a selectable audio input
attenuator. You don't need any extra parts or mods.
> Their input
attenuator works well with a URI.
> The RIM has some other unique
advantages one might consider.
> JK
>
--------------------------------------------
> On Thu, 3/6/14, Kevin
Oleniczak <n9jpg.ham@gmail.com> wrote:
>
> Subject:
[App_rpt-users] USB URIx overmodulation problem?
> To:
"app_rpt-users@ohnosec.org" <app_rpt-users@ohnosec.org>
> Date:
Thursday, March 6, 2014, 12:17 AM
>
> I'm using a
> URIx
module with my radio and am in the process of adjusting
> audio levels.
I'm following the well documented
> procedures to set rx and tx levels
but noticed that that
> choices in txvoice levels have little or no
effect. I've
> made some measurements with my service monitor.
>
>
> radio tune txvoice 10 >> 0.35Khz
deviation
> radio tune txvoice 14 >> 4.8Khz
deviation
> radio tune txvoice 15 >> 4.8Khz
deviation
> radio tune txvoice 20 >> 5.2Khz
deviation
> radio tune txvoice 100 >> 5.2Khz
deviation
>
> radio tune txvoice 500 >> 5.2Khz
deviation
> radio tune txvoice 900 >> 5.2Khz
deviation
>
> With a goal of 3KHz deviation, its not
possible
> through settings alone. Any ideas why this is so
touchy?
>
>
> thanks
>
>
>
>
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>
>
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