[App_rpt-users] USB URIx overmodulation problem?

[Bryan D. Boyle]

I'd add that the difference between line level and mic level is almost 50 dBm...so, removing the boost is a good thing.  it will get you into the ballpark.  

As will doing the final setting while referencing a deviation display on a decent service monitor.  

from what i've experienced and done, if you get the levels out of the radio hardware right (line at aprx 0 dBm, mic around -50 dBm, the radio-tune settings can be initially set up to midpoint and you'll be 'in the ballpark' to start the fine tuning.  

IOW, get the hardware signals set...then fine adjust the software.

At least that's what they taught back in the day.  otherwise you will be chasing your tail...

--
Bryan
Sent from my iPhone 5...small
keyboard, big fingers...please
forgive misspellings...



> On Mar 6, 2014, at 10:35, Jon Rorke <jrorke at cogeco.ca> wrote:
> 
> An alternate, if you are using USBradio in an ACID distro, you can specify in the USBradio.conf : 
> 
> txboost =0
> 
> I think it defaults to 1 which adds 20 db of level.
> 
> Jon RQ
> 
> 
>> On 3/6/2014 9:31 AM, Kevin Oleniczak wrote:
>> I'm in a "playing" stage with allstar and am only using my old HT (Yaesu FT-411). All the responses are helpful and confirm what I was thinking. I'll add an inline pad to knock the level down. 
>> 
>> thanks!
>> 
>> 
>>> On Thu, Mar 6, 2014 at 12:12 AM, Tim Sawyer <tim.sawyer at mac.com> wrote:
>>> Looks like you are driving your radio’s input to hard. Pad it down to where it hits 3Khz with a setting closer to 500.
>>> 
>>> On Mar 5, 2014, at 9:17 PM, Kevin Oleniczak <n9jpg.ham at gmail.com> wrote:
>>> 
>>> > 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
>>> >
>>> > _______________________________________________
>>> > App_rpt-users mailing list
>>> > App_rpt-users at ohnosec.org
>>> > http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
>>> >
>>> > To unsubscribe from this list please visit http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users and scroll down to the bottom of the page. Enter your email address and press the "Unsubscribe or edit options button"
>>> > You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.
>>> 
>> 
>> 
>> 
>> _______________________________________________
>> App_rpt-users mailing list
>> App_rpt-users at ohnosec.org
>> http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
>> 
>> To unsubscribe from this list please visit http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users and scroll down to the bottom of the page. Enter your email address and press the "Unsubscribe or edit options button"
>> You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem. 
> 
> _______________________________________________
> App_rpt-users mailing list
> App_rpt-users at ohnosec.org
> http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
> 
> To unsubscribe from this list please visit http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users and scroll down to the bottom of the page. Enter your email address and press the "Unsubscribe or edit options button"
> You do not need a password to unsubscribe, you can do it via email confirmation. If you have trouble unsubscribing, please send a message to the list detailing the problem.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.keekles.org/pipermail/app_rpt-users/attachments/20140306/d6bbe4d7/attachment.html>