[arm-allstar] simpleusb-tune

[Bob Pyke]

I built a cable with that configuration, that did not work. perhaps I have a cable issue. I'll check it out. COR works fine. And yes, I have it setup for the radio to detect PL, but it is turned off till I"m ready to install because my service monitor can't get through because it does not generate the sub audio PL signal.

Thanks,
Bob
k6ecm
73

Sent from iPad


> On Jun 19, 2016, at 9:23 PM, Larry via arm-allstar <arm-allstar at hamvoip.org> wrote:
> 
> Bob,
> 
> Using the FT-1500 if you use the 6 pin Packet connector you will have all the signals needed with enough drive to run most things. Choose 1200 baud and let the radio do the tone decode if needed.
> 
> Larry - N7FM
> 
>> On 06/19/2016 08:09 PM, Bob via arm-allstar wrote:
>> Attempting to use simpleusb-tune-menu on a BBB using a service monitor (3 kHz deviation, 1 kHz modulation). The output from the radio (FT-1500M) is the speaker audio out of the back. It seems that full volume (quite loud on the speaker) is not coming close to enough signal.
>>  
>> From simpleusb-tune-menu
>>  
>> Please enter your selection now: 2
>> RX VOICE DISPLAY:
>>                                                  v -- 3KHz        v -- 5KHz
>>  
>> |========>                                                                                                          |
>>  
>> This is using 999. If this is linear, or close, then I doubt the 2x gain amp will provide enough. I'm not sure what I've done wrong. The input to URIx is pin 21, with 19 gnd. The iaxrpt level is about 2/3 max.
>>  
>> Any thoughts?
>>  
>> Thanks,
>> Bob
>> k6ecm
>> 73
>>  
>>  
>> From: arm-allstar [mailto:arm-allstar-bounces at hamvoip.org] On Behalf Of Doug Crompton via arm-allstar
>> Sent: Monday, June 06, 2016 11:35 PM
>> To: ARM Allstar
>> Cc: Doug Crompton
>> Subject: Re: [arm-allstar] simpleusb-tune
>>  
>> I find that voice levels are highly dependent on the person speaking, the rig they are using, the node radio,  and probably a dozen other factors. Generally setting the audio so you see peaks just above 5 khz should be OK. Some radios have better limiting than othesr and the peaks are well defined. On some you can see peaks go well above what you would call max but the average is much lower. One thing you don't want to do is have it set too high. Digital distortion is very annoying. I often use iaxrpt's level meter for adjusting or looking at multiple users for comparison. If you are filling the iaxrpt bar graph to 9o-95% without hitting the edge you are good.
>> 
>> I often find that one node that shows 80% peaks actually sounds louder than one that shows 95% peaks. Audio characteristics and equalization can play games with your ears! I don't think setting using DTMF is always a good idea because DTMF levels can be quite different than voice through the microphone. 
>> 
>> Some radios like the Chinese variety handhelds have greatly varying audio levels depending on how far you are from the mic. You almost have to eat the mic on some of them to have a decent level of audio and then you have breath noise.
>> 
>> If you use a wide range of radios that you use to talk to your node it is best to check them all. You may have to come up with an average setting so that the loudest radio does not distort. 
>> 
>> Talk into the radios the way you would when you are not thinking. If you adjust it talking right into the mic and then when you aren't thinking you usually talk 2 inches away the level is not going to be right.
>> 
>> In the future we hope to have audio processing capability added to the code to help fix some of these problems. 
>> 
>> 73 Doug
>> WA3DSP
>> http://www.crompton.com/hamradio
>> 
>> 
>> > To: arm-allstar at hamvoip.org
>> > Date: Mon, 6 Jun 2016 20:36:18 -0700
>> > Subject: [arm-allstar] simpleusb-tune
>> > From: arm-allstar at hamvoip.org
>> > CC: k6ecm1 at gmail.com
>> > 
>> > 
>> > What should I see as I change input audio levels? Is there a recommended FM
>> > deviation? Is this the 3KHz and 5KHz? When I get it right, what should the
>> > display indicate?
>> > 
>> > Thanks,
>> > Bob
>> > k6ecm
>> > 73
>> > 
>> > 1) Select USB device
>> > 2) Set Rx Voice Level (using display)
>> > 3) Set Transmit A Level
>> > .
>> > .
>> > .
>> > 
>> > Please enter your selection now: 2
>> > RX VOICE DISPLAY:
>> > v -- 3KHz v -- 5KHz
>> > 
>> > Current setting on Rx Channel is 0
>> > Enter new value (0-999, or CR for none): 500
>> > Changed setting on RX Channel to 500
>> > RX VOICE DISPLAY:
>> > v -- 3KHz v -- 5KHz
>> > 
>> > _______________________________________________
>> > 
>> > arm-allstar mailing list
>> Bob,
>> 
>> Using the FT-1500 if you use the 6 pin Packet connector you will have all the signals needed with enough drive to run most things. Choose 1200 baud and let the radio do the tone decode if needed.
>> 
>> Larry - N7FM > arm-allstar at hamvoip.org
>> > 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
>> http://lists.hamvoip.org/cgi-bin/mailman/listinfo/arm-allstar
>> 
>> Visit the BBB and RPi2 web page - http://hamvoip.org
> 
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> 
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> 
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