About a week ago I asked about DMK URI connections to an Alinco radio and I got several responses. I do have a few more questions regarding that. The Alinco has both flat and pre/de-emphasized audio available on its data connector as 1200 baud and 9600 baud connections. I assume I would use the 1200 baud connections along with COS and PTT for a simple USB interface and the 9600 baud connections along with just the PTT for a DSP interface? Do I use the (Alinco 9600 baud) audio to the TX also? Does the DSP pre-emphasize audio or is the processing just on the receive side? Why would I want to use one over the other (DSP vs simple USB)? Which is preferred and/or works better? I am thinking there might be some differing opinions here! The DMK URI has both mic_DC and mic_AC inputs. Does this refer to frequency response or just that one has DC blocking? If you are using flat response (DSP) would the audio in (from the receiver) connections at the URI end matter? The DMK URI has both COS and CTSS inputs. Why would you use one over the other? When using DSP I assume neither is needed? All of the questions above assume I am using the Acid release on a faster processor. 73 Doug WA3DSP http://www.crompton.com/hamradio
Doug: I know the alinco has flat audio out pin 2 and de-emphasized audio on pin 4. Ive ran some experiments and use both sources on DR-135/235/and 435 alincos. The output on pin 4 is around 84mV and 500mV on pin 2 on all radios. Please post your findings, Im curious to see what you come up with. Thank you, JK From: Doug Crompton <doug@crompton.com> To: "app_rpt-users@ohnosec.org" <app_rpt-users@ohnosec.org> Sent: Saturday, November 2, 2013 1:53 AM Subject: [App_rpt-users] DMK URI questions About a week ago I asked about DMK URI connections to an Alinco radio and I got several responses. I do have a few more questions regarding that. The Alinco has both flat and pre/de-emphasized audio available on its data connector as 1200 baud and 9600 baud connections. I assume I would use the 1200 baud connections along with COS and PTT for a simple USB interface and the 9600 baud connections along with just the PTT for a DSP interface? Do I use the (Alinco 9600 baud) audio to the TX also? Does the DSP pre-emphasize audio or is the processing just on the receive side? Why would I want to use one over the other (DSP vs simple USB)? Which is preferred and/or works better? I am thinking there might be some differing opinions here! The DMK URI has both mic_DC and mic_AC inputs. Does this refer to frequency response or just that one has DC blocking? If you are using flat response (DSP) would the audio in (from the receiver) connections at the URI end matter? The DMK URI has both COS and CTSS inputs. Why would you use one over the other? When using DSP I assume neither is needed? All of the questions above assume I am using the Acid release on a faster processor. 73 Doug WA3DSP http://www.crompton.com/hamradio _______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
you all are getting too far into the weeds...it ain't broadcast audio, though it can sound better than most repeaters on the air today. 9600 is fine; the levels you'll get are more than sufficient to work with. don't forget to put it into data mode and lock it. add in the rx boost, and you'll have more than you need to do whatever you want. let asterisk dsp if you have the cpu chops do what it does. push composite back in, set your levels, and enjoy. don't overthink it...it's just not that complex. -- Bryan Sent from my iPhone 5...small keyboard, big fingers...please forgive misspellings... On Nov 2, 2013, at 16:07, Johnny Keeker <cypresstower@yahoo.com> wrote:
Doug: I know the alinco has flat audio out pin 2 and de-emphasized audio on pin 4. Ive ran some experiments and use both sources on DR-135/235/and 435 alincos. The output on pin 4 is around 84mV and 500mV on pin 2 on all radios. Please post your findings, Im curious to see what you come up with. Thank you, JK From: Doug Crompton <doug@crompton.com> To: "app_rpt-users@ohnosec.org" <app_rpt-users@ohnosec.org> Sent: Saturday, November 2, 2013 1:53 AM Subject: [App_rpt-users] DMK URI questions
About a week ago I asked about DMK URI connections to an Alinco radio and I got several responses. I do have a few more questions regarding that.
The Alinco has both flat and pre/de-emphasized audio available on its data connector as 1200 baud and 9600 baud connections.
I assume I would use the 1200 baud connections along with COS and PTT for a simple USB interface and the 9600 baud connections along with just the PTT for a DSP interface?
Do I use the (Alinco 9600 baud) audio to the TX also? Does the DSP pre-emphasize audio or is the processing just on the receive side?
Why would I want to use one over the other (DSP vs simple USB)? Which is preferred and/or works better? I am thinking there might be some differing opinions here!
The DMK URI has both mic_DC and mic_AC inputs. Does this refer to frequency response or just that one has DC blocking?
If you are using flat response (DSP) would the audio in (from the receiver) connections at the URI end matter?
The DMK URI has both COS and CTSS inputs. Why would you use one over the other? When using DSP I assume neither is needed?
All of the questions above assume I am using the Acid release on a faster processor.
73 Doug WA3DSP http://www.crompton.com/hamradio
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I not sure how to interpret "you all are getting to far into the weeds," I guess its to say done wasted your time experimenting. Personally I hold an opposing viewpoint, however I agree, with dont over think it, so I retract my previous comments and now say, "dont worry about audio quality use the default codec and git-r done." JK From: Bryan D. Boyle <bdboyle@bdboyle.com> To: "<app_rpt-users@ohnosec.org>" <app_rpt-users@ohnosec.org> Sent: Saturday, November 2, 2013 8:06 PM Subject: Re: [App_rpt-users] DMK URI questions you all are getting too far into the weeds...it ain't broadcast audio, though it can sound better than most repeaters on the air today. 9600 is fine; the levels you'll get are more than sufficient to work with. don't forget to put it into data mode and lock it. add in the rx boost, and you'll have more than you need to do whatever you want. let asterisk dsp if you have the cpu chops do what it does. push composite back in, set your levels, and enjoy. don't overthink it...it's just not that complex. -- Bryan Sent from my iPhone 5...small keyboard, big fingers...please forgive misspellings... On Nov 2, 2013, at 16:07, Johnny Keeker <cypresstower@yahoo.com> wrote: Doug:
I know the alinco has flat audio out pin 2 and de-emphasized audio on pin 4. Ive ran some experiments and use both sources on DR-135/235/and 435 alincos. The output on pin 4 is around 84mV and 500mV on pin 2 on all radios. Please post your findings, Im curious to see what you come up with. Thank you, JK
From: Doug Crompton <doug@crompton.com> To: "app_rpt-users@ohnosec.org" <app_rpt-users@ohnosec.org> Sent: Saturday, November 2, 2013 1:53 AM Subject: [App_rpt-users] DMK URI questions
About a week ago I asked about DMK URI connections to an Alinco radio and I got several responses. I do have a few more questions regarding that.
The Alinco has both flat and pre/de-emphasized audio available on its data connector as 1200 baud and 9600 baud connections.
I assume I would use the 1200 baud connections along with COS and PTT for a simple USB interface and the 9600 baud connections along with just the PTT for a DSP interface?
Do I use the (Alinco 9600 baud) audio to the TX also? Does the DSP pre-emphasize audio or is the processing just on the receive side?
Why would I want to use one over the other (DSP vs simple USB)? Which is preferred and/or works better? I am thinking there might be some differing opinions here!
The DMK URI has both mic_DC and mic_AC inputs. Does this refer to frequency response or just that one has DC blocking?
If you are using flat response (DSP) would the audio in (from the receiver) connections at the URI end matter?
The DMK URI has both COS and CTSS inputs. Why would you use one over the other? When using DSP I assume neither is needed?
All of the questions above assume I am using the Acid release on a faster processor.
73 Doug WA3DSP http://www.crompton.com/hamradio
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One thing that I liked about using the dsp for squelch and ctcss detect was what I like to call "time travel" in that the first syllable spoken even before the ctcss is detected, doesn't get lost. I now use the voter boards/RTCMs and that is hardware ctcss and squelch and now everyone using the repeater has to remember to delay talking or the first syllable and sometimes word will not be heard. but everything else about the voter board/RTCM is great and I wouldn't go back. But maybe a future 2nd or 3rd generation voterboard will have a powerful enough CPU that it can also do DSP squelch and ctcss, or at least have enough RAM that it can always be storing audio even when no ctcss is detected so that it too can do the "time travel" thing and never miss any audio while waiting to detect ctcss. Before the voter boards/RTCMs, all I used was usbradio and DSP, and it worked great and sounded great. Chuck WB9UUS On Sat, Nov 2, 2013 at 11:57 PM, Johnny Keeker <cypresstower@yahoo.com>wrote:
I not sure how to interpret "you all are getting to far into the weeds," I guess its to say done wasted your time experimenting. Personally I hold an opposing viewpoint, however I agree, with dont over think it, so I retract my previous comments and now say, "dont worry about audio quality use the default codec and *git-r done*." JK *From:* Bryan D. Boyle <bdboyle@bdboyle.com> *To:* "<app_rpt-users@ohnosec.org>" <app_rpt-users@ohnosec.org> *Sent:* Saturday, November 2, 2013 8:06 PM
*Subject:* Re: [App_rpt-users] DMK URI questions
you all are getting too far into the weeds...it ain't broadcast audio, though it can sound better than most repeaters on the air today. 9600 is fine; the levels you'll get are more than sufficient to work with. don't forget to put it into data mode and lock it. add in the rx boost, and you'll have more than you need to do whatever you want. let asterisk dsp if you have the cpu chops do what it does. push composite back in, set your levels, and enjoy.
don't overthink it...it's just not that complex.
-- Bryan Sent from my iPhone 5...small keyboard, big fingers...please forgive misspellings...
On Nov 2, 2013, at 16:07, Johnny Keeker <cypresstower@yahoo.com> wrote:
Doug: I know the alinco has flat audio out pin 2 and de-emphasized audio on pin 4. Ive ran some experiments and use both sources on DR-135/235/and 435 alincos. The output on pin 4 is around 84mV and 500mV on pin 2 on all radios. Please post your findings, Im curious to see what you come up with. Thank you, JK *From:* Doug Crompton <doug@crompton.com> *To:* "app_rpt-users@ohnosec.org" <app_rpt-users@ohnosec.org> *Sent:* Saturday, November 2, 2013 1:53 AM *Subject:* [App_rpt-users] DMK URI questions
About a week ago I asked about DMK URI connections to an Alinco radio and I got several responses. I do have a few more questions regarding that.
The Alinco has both flat and pre/de-emphasized audio available on its data connector as 1200 baud and 9600 baud connections.
I assume I would use the 1200 baud connections along with COS and PTT for a simple USB interface and the 9600 baud connections along with just the PTT for a DSP interface?
Do I use the (Alinco 9600 baud) audio to the TX also? Does the DSP pre-emphasize audio or is the processing just on the receive side?
Why would I want to use one over the other (DSP vs simple USB)? Which is preferred and/or works better? I am thinking there might be some differing opinions here!
The DMK URI has both mic_DC and mic_AC inputs. Does this refer to frequency response or just that one has DC blocking?
If you are using flat response (DSP) would the audio in (from the receiver) connections at the URI end matter?
The DMK URI has both COS and CTSS inputs. Why would you use one over the other? When using DSP I assume neither is needed?
All of the questions above assume I am using the Acid release on a faster processor.
*73 DougWA3DSP http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>*
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Ive been contemplating the use of RTCMs, 4 to be exact.Your information is worthy of notation.Thank your sharing. From: Chuck Henderson <rpt2@chuck.midlandsnetworking.com> To: Johnny Keeker <cypresstower@yahoo.com> Cc: Bryan D. Boyle <bdboyle@bdboyle.com>; "<app_rpt-users@ohnosec.org>" <app_rpt-users@ohnosec.org> Sent: Sunday, November 3, 2013 1:57 AM Subject: Re: [App_rpt-users] DMK URI questions One thing that I liked about using the dsp for squelch and ctcss detect was what I like to call "time travel" in that the first syllable spoken even before the ctcss is detected, doesn't get lost. I now use the voter boards/RTCMs and that is hardware ctcss and squelch and now everyone using the repeater has to remember to delay talking or the first syllable and sometimes word will not be heard. but everything else about the voter board/RTCM is great and I wouldn't go back. But maybe a future 2nd or 3rd generation voterboard will have a powerful enough CPU that it can also do DSP squelch and ctcss, or at least have enough RAM that it can always be storing audio even when no ctcss is detected so that it too can do the "time travel" thing and never miss any audio while waiting to detect ctcss. Before the voter boards/RTCMs, all I used was usbradio and DSP, and it worked great and sounded great. Chuck WB9UUS On Sat, Nov 2, 2013 at 11:57 PM, Johnny Keeker <cypresstower@yahoo.com> wrote: I not sure how to interpret "you all are getting to far into the weeds,"
I guess its to say done wasted your time experimenting. Personally I hold an opposing viewpoint, however I agree, with dont over think it, so I retract my previous comments and now say, "dont worry about audio quality use the default codec and git-r done." JK From: Bryan D. Boyle <bdboyle@bdboyle.com> To: "<app_rpt-users@ohnosec.org>" <app_rpt-users@ohnosec.org> Sent: Saturday, November 2, 2013 8:06 PM
Subject: Re: [App_rpt-users] DMK URI questions
you all are getting too far into the weeds...it ain't broadcast audio, though it can sound better than most repeaters on the air today. 9600 is fine; the levels you'll get are more than sufficient to work with. don't forget to put it into data mode and lock it. add in the rx boost, and you'll have more than you need to do whatever you want. let asterisk dsp if you have the cpu chops do what it does. push composite back in, set your levels, and enjoy.
don't overthink it...it's just not that complex.
-- Bryan Sent from my iPhone 5...small keyboard, big fingers...please forgive misspellings...
On Nov 2, 2013, at 16:07, Johnny Keeker <cypresstower@yahoo.com> wrote:
Doug:
I know the alinco has flat audio out pin 2 and de-emphasized audio on pin 4. Ive ran some experiments and use both sources on DR-135/235/and 435 alincos. The output on pin 4 is around 84mV and 500mV on pin 2 on all radios. Please post your findings, Im curious to see what you come up with. Thank you, JK
From: Doug Crompton <doug@crompton.com> To: "app_rpt-users@ohnosec.org" <app_rpt-users@ohnosec.org> Sent: Saturday, November 2, 2013 1:53 AM Subject: [App_rpt-users] DMK URI questions
About a week ago I asked about DMK URI connections to an Alinco radio and I got several responses. I do have a few more questions regarding that.
The Alinco has both flat and pre/de-emphasized audio available on its data connector as 1200 baud and 9600 baud connections.
I assume I would use the 1200 baud connections along with COS and PTT for a simple USB interface and the 9600 baud connections along with just the PTT for a DSP interface?
Do I use the (Alinco 9600 baud) audio to the TX also? Does the DSP pre-emphasize audio or is the processing just on the receive side?
Why would I want to use one over the other (DSP vs simple USB)? Which is preferred and/or works better? I am thinking there might be some differing opinions here!
The DMK URI has both mic_DC and mic_AC inputs. Does this refer to frequency response or just that one has DC blocking?
If you are using flat response (DSP) would the audio in (from the receiver) connections at the URI end matter?
The DMK URI has both COS and CTSS inputs. Why would you use one over the other? When using DSP I assume neither is needed?
All of the questions above assume I am using the Acid release on a faster processor.
73 Doug WA3DSP http://www.crompton.com/hamradio
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I find these comments interesting! I agree that you have to get the system on the air. So, before you have a working system, don't over-think it. However, once you've overcome the initial learning curve (and it is substantial), this software and solution is capable of *exceedingly* high quality audio (I dare to call it "broadcast quality") and repeater control, once it's carefully tweaked for the radio hardware it's attached to...So, don't stop experimenting--I still do; even after having systems on-line continuously now for years. just my $0.02! 73, David KB4FXC On Sat, 2 Nov 2013, Johnny Keeker wrote:
I not sure how to interpret "you all are getting to far into the weeds," I guess its to say done wasted your time experimenting. Personally I hold an opposing viewpoint, however I agree, with dont over think it, so I retract my previous comments and now say, "dont worry about audio quality use the default codec and git-r done." JK From: Bryan D. Boyle <bdboyle@bdboyle.com> To: "<app_rpt-users@ohnosec.org>" <app_rpt-users@ohnosec.org> Sent: Saturday, November 2, 2013 8:06 PM Subject: Re: [App_rpt-users] DMK URI questions
you all are getting too far into the weeds...it ain't broadcast audio, though it can sound better than most repeaters on the air today. 9600 is fine; the levels you'll get are more than sufficient to work with. don't forget to put it into data mode and lock it. add in the rx boost, and you'll have more than you need to do whatever you want. let asterisk dsp if you have the cpu chops do what it does. push composite back in, set your levels, and enjoy. don't overthink it...it's just not that complex. -- Bryan Sent from my iPhone 5...small keyboard, big fingers...please forgive misspellings... On Nov 2, 2013, at 16:07, Johnny Keeker <cypresstower@yahoo.com> wrote: Doug:
I know the alinco has flat audio out pin 2 and de-emphasized audio on pin 4. Ive ran some experiments and use both sources on DR-135/235/and 435 alincos. The output on pin 4 is around 84mV and 500mV on pin 2 on all radios. Please post your findings, Im curious to see what you come up with. Thank you, JK
From: Doug Crompton <doug@crompton.com> To: "app_rpt-users@ohnosec.org" <app_rpt-users@ohnosec.org> Sent: Saturday, November 2, 2013 1:53 AM Subject: [App_rpt-users] DMK URI questions
About a week ago I asked about DMK URI connections to an Alinco radio and I got several responses. I do have a few more questions regarding that.
The Alinco has both flat and pre/de-emphasized audio available on its data connector as 1200 baud and 9600 baud connections.
I assume I would use the 1200 baud connections along with COS and PTT for a simple USB interface and the 9600 baud connections along with just the PTT for a DSP interface?
Do I use the (Alinco 9600 baud) audio to the TX also? Does the DSP pre-emphasize audio or is the processing just on the receive side?
Why would I want to use one over the other (DSP vs simple USB)? Which is preferred and/or works better? I am thinking there might be some differing opinions here!
The DMK URI has both mic_DC and mic_AC inputs. Does this refer to frequency response or just that one has DC blocking?
If you are using flat response (DSP) would the audio in (from the receiver) connections at the URI end matter?
The DMK URI has both COS and CTSS inputs. Why would you use one over the other? When using DSP I assume neither is needed?
All of the questions above assume I am using the Acid release on a faster processor.
73 Doug WA3DSP http://www.crompton.com/hamradio
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On 11/3/2013 12:57 AM, Johnny Keeker wrote:
I not sure how to interpret "you all are getting to far into the weeds,"
Get the box working. That's the initial goal. You can get sidetracked verrrrrry easily because of 1) the complexity of the software and options list, 2) having to think 'outside the box' maybe coming from the hardware controller world which is less flexible or 3) confusing operating system with application and getting wrapped around the axle or 4) overthinking the process. Thousands have successfully built and are operating this system. If it's not working...go back to square one and go step by step.
I guess its to say done wasted your time experimenting.
Would never say that. Like I said, I've hooked everything from a radio station audio console to wouxuns to motorola mobiles of all stripes to GE MVSs to a couple of Hamtronics POS t/r individual boxes to ?. I love diddling with the thing and am amazed of how SIMPLE it is to get working. For instance, I just stood up a link to my MSF5K 900 machine via a pair of 70cm mobiles (with cooling...), one an MVS, the other a GM300...running two radios as a simplex node...and it took a little doing...but it works, off two individual antennas (one receive, one transmit). And sounds just fine. Now, have to work on dumping all the beeps and boops from various systems linked in....but it's working is the key. Experiment all you want. I do. But, in the end...you have to have a foundation to build on.
Personally I hold an opposing viewpoint, however I agree, with dont over think it, so I retract my previous comments and now say, "dont worry about audio quality use the default codec and git-r done."
I didn't say that...but it's hard with this system to not have a good audio quality IF YOU READ AND FOLLOW the tuning directions. But, yeah, git-r-done. Don't get lost in the weeds.
participants (5)
-
Bryan D. Boyle -
Chuck Henderson -
David McGough -
Doug Crompton -
Johnny Keeker