Mastr II and URI low TX audio
I have a Mastr II mobile tuned up in the ham bands. Trying to set the audio levels. RX worked great. Problem with TX audio, I can only get 2KHz deviation max if I set the level to 999 in app_rpt. I am using the URI and have wired it to use the 6db amplifier on board. Anyone else run into this problem? boB - W5EVH
Hey bob Where are you injecting the audio? There should be plenty of headroom. Is the mic still connected? Ross www.kc7rjk.net From: Bob Roszkowski Sent: Thursday, August 15, 2013 8:12 PM To: App_rpt-users@ohnosec.org Subject: [App_rpt-users] Mastr II and URI low TX audio I have a Mastr II mobile tuned up in the ham bands. Trying to set the audio levels. RX worked great. Problem with TX audio, I can only get 2KHz deviation max if I set the level to 999 in app_rpt. I am using the URI and have wired it to use the 6db amplifier on board. Anyone else run into this problem? boB - W5EVH -------------------------------------------------------------------------------- _______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
Same question, But also: How are you adjusting the audio in the radio? The "normal" two places to inject are the MIC input, the second is the PL input. I can "see" the pot in my head, but don't remember the number off my head for the deviation pot. You might be up against the limiter. Mark KC5EVE At 05:12 AM 8/16/2013, Ross Johnson wrote:
Hey bob Where are you injecting the audio? There should be plenty of headroom. Is the mic still connected?
Ross <http://www.kc7rjk.net>www.kc7rjk.net
From: <mailto:bob@w5evh.org>Bob Roszkowski Sent: Thursday, August 15, 2013 8:12 PM To: <mailto:App_rpt-users@ohnosec.org>App_rpt-users@ohnosec.org Subject: [App_rpt-users] Mastr II and URI low TX audio
I have a Mastr II mobile tuned up in the ham bands. Trying to set the audio levels. RX worked great. Problem with TX audio, I can only get 2KHz deviation max if I set the level to 999 in app_rpt. I am using the URI and have wired it to use the 6db amplifier on board. Anyone else run into this problem?
boB - W5EVH
---------- _______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users _______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
Seems I remember a jumper in the beginning of the TX string on an MII that activated or deactivated a mic amp?? I run a MII feeding the MIC input and have plenty of TX audio, but it has been many years and I do remember something about that jumper making a HUGE difference in mic input levels. ----- Original Message ----- From: Mark Cheavens To: Ross Johnson Cc: App_rpt-users@ohnosec.org ; Bob Roszkowski Sent: Friday, August 16, 2013 6:20 AM Subject: Re: [App_rpt-users] Mastr II and URI low TX audio Same question, But also: How are you adjusting the audio in the radio? The "normal" two places to inject are the MIC input, the second is the PL input. I can "see" the pot in my head, but don't remember the number off my head for the deviation pot. You might be up against the limiter. Mark KC5EVE At 05:12 AM 8/16/2013, Ross Johnson wrote: Hey bob Where are you injecting the audio? There should be plenty of headroom. Is the mic still connected? Ross www.kc7rjk.net From: Bob Roszkowski Sent: Thursday, August 15, 2013 8:12 PM To: App_rpt-users@ohnosec.org Subject: [App_rpt-users] Mastr II and URI low TX audio I have a Mastr II mobile tuned up in the ham bands. Trying to set the audio levels. RX worked great. Problem with TX audio, I can only get 2KHz deviation max if I set the level to 999 in app_rpt. I am using the URI and have wired it to use the 6db amplifier on board. Anyone else run into this problem? boB - W5EVH ---------------------------------------------------------------------------- _______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users _______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users __________ Information from ESET NOD32 Antivirus, version of virus signature database 8696 (20130816) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com ------------------------------------------------------------------------------ _______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users __________ Information from ESET NOD32 Antivirus, version of virus signature database 8696 (20130816) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com __________ Information from ESET NOD32 Antivirus, version of virus signature database 8696 (20130816) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com
Hey Ross, I am connected to Pin 4 (Mic-Hi) of the front connector. No mic and no control head. boB - W5EVH On Fri, Aug 16, 2013 at 5:12 AM, Ross Johnson <kc7rjk@comcast.net> wrote:
Hey bob Where are you injecting the audio? There should be plenty of headroom. Is the mic still connected?
Ross www.kc7rjk.net
*From:* Bob Roszkowski <bob@w5evh.org> *Sent:* Thursday, August 15, 2013 8:12 PM *To:* App_rpt-users@ohnosec.org *Subject:* [App_rpt-users] Mastr II and URI low TX audio
I have a Mastr II mobile tuned up in the ham bands. Trying to set the audio levels. RX worked great. Problem with TX audio, I can only get 2KHz deviation max if I set the level to 999 in app_rpt. I am using the URI and have wired it to use the 6db amplifier on board. Anyone else run into this problem?
boB - W5EVH
------------------------------ _______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
I've never used a MII mobile, but in the stations (with only the regulator card in the shelf) I've tagged onto the mic audio line on the backplane. Yes, I did need to use the URI amplifier. I THINK that I had to bring the deviation pot way up. Enough that the exciter was effectively not doing any limiting. Relying on the software DSP. I'm a bit hazy on that point though, it's been a while. The PLL exciter was mentioned. On those you can inject composite (voice and PL) into the exciter CG input. I measured mine to be dead flat in response (no pre-emphasis at all) to at least 8 KC. Which makes sense as from what I've been told, that's where they injected the EDACS data. Yes, the microphone has an amplified cartridge. Hence MIC DC on the mic audio line. But the URI has a 10uf blocker cap on it's inputs and outputs if believe. -- Robert A. Poff Loganville, PA S/V Loon 1983 Hunter 34 Havre de Grace, MD. WB3AWJ - Allstar 27784 Powered by Linux
On 8/16/2013 9:41 AM, Robert Poff wrote:
Yes, the microphone has an amplified cartridge. Hence MIC DC on the mic audio line. But the URI has a 10uf blocker cap on it's inputs and outputs if believe.
Actually, has both AC coupled and non-coupled (ie no cap) audio circuits Pin 9 Mic In 10 Left Out 21 Mic In AC 22 Left Out AC It's pretty plain from reading the schematic. BTW, you can use these URI to couple more than just transceivers and radio stuff to the asterisk software. Think outside the bun. Bryan WB0YLE
That was the jumper I remember removing in the MII. It removed DC from the mic and I believe increased the gain of the audio TX stage in the radio when you did it??? ----- Original Message ----- From: "Bryan D. Boyle" <bdboyle@bdboyle.com> To: <app_rpt-users@ohnosec.org> Sent: Friday, August 16, 2013 6:53 AM Subject: Re: [App_rpt-users] Mastr II and URI low TX audio
On 8/16/2013 9:41 AM, Robert Poff wrote:
Yes, the microphone has an amplified cartridge. Hence MIC DC on the mic audio line. But the URI has a 10uf blocker cap on it's inputs and outputs if believe.
Actually, has both AC coupled and non-coupled (ie no cap) audio circuits
Pin 9 Mic In 10 Left Out
21 Mic In AC 22 Left Out AC
It's pretty plain from reading the schematic. BTW, you can use these URI to couple more than just transceivers and radio stuff to the asterisk software. Think outside the bun.
Bryan WB0YLE
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__________ Information from ESET NOD32 Antivirus, version of virus signature database 8696 (20130816) __________
The message was checked by ESET NOD32 Antivirus.
__________ Information from ESET NOD32 Antivirus, version of virus signature database 8696 (20130816) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com
participants (6)
-
Bob Roszkowski -
Bryan D. Boyle -
KJ6KO -
Mark Cheavens -
Robert Poff -
Ross Johnson