Hear clear needs to be enabled to get enough audio. Thanks all, Mike Sent from my iPhone
Not really... You really don’t want to enable hear clear. Hear clear is really for narrow band. For Motorola microphone circuit, you need to use the additional amplifier on the URI. What interface are you using? 73 Jim W7RY -----Original Message----- From: Mike Wolthuis Sent: Saturday, July 27, 2013 3:23 PM To: app_rpt-users@ohnosec.org Subject: [App_rpt-users] Figured it out! Hear clear needs to be enabled to get enough audio. Thanks all, Mike Sent from my iPhone _______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
Here is a cut and paste from Repeater Builder: Hear-Clear is a noise reduction system trademarked by Motorola. It's probably similar to other manufacturer's compression/expansion techniques. Spectra radios call it a compander. The system looks at the received signal strength and the high frequency noise at the receiver and adjusts the audio response to eliminate most of the flutter, pops, and clicks that are prevalent with motion. The transmitter audio is filtered and compressed to bring low levels up. The receiver applies similar expansion to return the audio to normal levels. This also tends to reduce the high frequency components and a lot of the noise along with it. The audio filtering tends to make the audio sound thin, but most of the energy is now in the normal communications-quality frequency range of about 400 to 2500 Hz. PL and DPL are unaffected. In an all-Motorola repeater environment, Hear-Clear would be enabled on all user radios as well as the repeater. The repeater's receiver will adjust its action based on the signals it hears. The user's radio will adjust its action based on the signal put out by the repeater. Unfortunately, Hear-Clear is only available on 900 MHz products. In MaxTracs, the Hear-Clear component (one IC) is mounted on the microphone jack circuit board and the 900 MHz logic board enables or disables the circuit on a channel-by-channel basis (configured through RSS). Hear-Clear is either enabled or disabled, and it always affects both receive and transmit audio. A repeater without Hear-Clear can still be used. The repeater must pass clean audio and the user radios can have Hear-Clear enabled. Unfortunately, the part of the system that utilizes signal strength will be fooled by the constant strong signal coming from the repeater's transmitter, but the user radios will still benefit from the compression and expansion of the audio signal. Pops and clicks will be noticeably removed. Radios without Hear-Clear can also use the repeater, but the audio will sound strange if a mix of radios is used. -----Original Message----- From: Jim W7RY Sent: Saturday, July 27, 2013 5:20 PM To: Mike Wolthuis ; app_rpt-users@ohnosec.org Subject: Re: [App_rpt-users] Figured it out! Not really... You really don’t want to enable hear clear. Hear clear is really for narrow band. For Motorola microphone circuit, you need to use the additional amplifier on the URI. What interface are you using? 73 Jim W7RY -----Original Message----- From: Mike Wolthuis Sent: Saturday, July 27, 2013 3:23 PM To: app_rpt-users@ohnosec.org Subject: [App_rpt-users] Figured it out! Hear clear needs to be enabled to get enough audio. Thanks all, Mike Sent from my iPhone _______________________________________________ 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
Are you aware of the 'beagle tune' commands in the Asterisk CLI?
From: wolthuis@gmail.com Date: Sat, 27 Jul 2013 18:23:04 -0400 To: app_rpt-users@ohnosec.org Subject: [App_rpt-users] Figured it out!
Hear clear needs to be enabled to get enough audio.
Thanks all, Mike
Sent from my iPhone _______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
Yea Mike don't use hear-clear... I was asleep when you messaged.. I am awake now... but don't use hear-clear... -- Fredric Moses - W8FSM - WQOG498 fred@moses.bz On Sat, Jul 27, 2013 at 9:07 PM, Jim Duuuude <telesistant@hotmail.com> wrote:
Are you aware of the 'beagle tune' commands in the Asterisk CLI?
From: wolthuis@gmail.com Date: Sat, 27 Jul 2013 18:23:04 -0400
To: app_rpt-users@ohnosec.org Subject: [App_rpt-users] Figured it out!
Hear clear needs to be enabled to get enough audio.
Thanks all, Mike
Sent from my iPhone _______________________________________________ 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
This must be a 900 maxtrac?? Don't know what other Maxtracs have HEARCLEAR...and it will NOT do wideband! 2.5 KHz...that's it! (maybe a little more) Very few HAM's use HEARCLEAR! Sounds compressed (because it is!). There is no reason to have to use it to get enough audio. I have no problems with ANY motorolas, Maxtrac(900 and UHF), Radius, GM300 etc. Something else is wrong! Check your settings! You will play hell trying to align TX audio levels correctly with hearclear on! There is no dynamic range with it on...always full audio! ALSO...If this is a 900 maxtrac, the rear mic connector does NOT use hearclear nor is it pre-emphasized like all othe maxtracs! ALSO, the 900 RX from the rear (pin 11) is ALWAYS flat regardless of JU551! It is NEVER de-emphasized! All that is done in the mic jack. That is why the 900's have an extra board in the head on the mic board. Leave the hearclear OFF!! If you can't get enough audio, something else is wrong. You said you "tied flat inside the maxtrac"??? Why inside and to what?? The 900 maxtrac has flat audio in on the rear connector. ALL 900 maxtracs are 16 pin maxtracs. I have 11 900 repeaters, all Maxtracs,(a couple GTX's) and do NOT use hearclear on any of them, and have plenty of audio!! Never had to use the TXGAIN. Since all the Maxtrac, Radius, GM300, M10, M120, GTX etc. all have the same basic mic input levels, I would think others would have seen the same issue you have. Has to be a setting in the beagle board or one of the files. Believe me, running hearclear only on the TX will increase all background noise, flutter, RF noise etc. Unless you want to run all your receivers listening to it in Hearclear mode also, and that drives me nuts! I've tried it! I can identify a hearclear radio within the first sentence spoken thru it! again, check your settings! Good luck! and 73... ----- Original Message ----- From: "Mike Wolthuis" <wolthuis@gmail.com> To: <app_rpt-users@ohnosec.org> Sent: Saturday, July 27, 2013 3:23 PM Subject: [App_rpt-users] Figured it out!
Hear clear needs to be enabled to get enough audio.
Thanks all, Mike
Sent from my iPhone _______________________________________________ App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users
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Goodness... On Jul 27, 2013 10:35 PM, "KJ6KO" <kj6ko@innercite.com> wrote:
This must be a 900 maxtrac?? Don't know what other Maxtracs have HEARCLEAR...and it will NOT do wideband! 2.5 KHz...that's it! (maybe a little more)
Very few HAM's use HEARCLEAR! Sounds compressed (because it is!). There is no reason to have to use it to get enough audio. I have no problems with ANY motorolas, Maxtrac(900 and UHF), Radius, GM300 etc. Something else is wrong! Check your settings!
You will play hell trying to align TX audio levels correctly with hearclear on! There is no dynamic range with it on...always full audio!
ALSO...If this is a 900 maxtrac, the rear mic connector does NOT use hearclear nor is it pre-emphasized like all othe maxtracs! ALSO, the 900 RX from the rear (pin 11) is ALWAYS flat regardless of JU551! It is NEVER de-emphasized! All that is done in the mic jack. That is why the 900's have an extra board in the head on the mic board. Leave the hearclear OFF!! If you can't get enough audio, something else is wrong.
You said you "tied flat inside the maxtrac"??? Why inside and to what?? The 900 maxtrac has flat audio in on the rear connector. ALL 900 maxtracs are 16 pin maxtracs.
I have 11 900 repeaters, all Maxtracs,(a couple GTX's) and do NOT use hearclear on any of them, and have plenty of audio!! Never had to use the TXGAIN.
Since all the Maxtrac, Radius, GM300, M10, M120, GTX etc. all have the same basic mic input levels, I would think others would have seen the same issue you have. Has to be a setting in the beagle board or one of the files.
Believe me, running hearclear only on the TX will increase all background noise, flutter, RF noise etc. Unless you want to run all your receivers listening to it in Hearclear mode also, and that drives me nuts! I've tried it! I can identify a hearclear radio within the first sentence spoken thru it! again, check your settings!
Good luck! and 73...
----- Original Message ----- From: "Mike Wolthuis" <wolthuis@gmail.com> To: <app_rpt-users@ohnosec.org> Sent: Saturday, July 27, 2013 3:23 PM Subject: [App_rpt-users] Figured it out!
Hear clear needs to be enabled to get enough audio.
Thanks all, Mike
Sent from my iPhone ______________________________**_________________ App_rpt-users mailing list App_rpt-users@ohnosec.org http://ohnosec.org/cgi-bin/**mailman/listinfo/app_rpt-users<http://ohnosec.org/cgi-bin/mailman/listinfo/app_rpt-users>
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participants (6)
-
Fredric Moses -
Jim Duuuude -
Jim W7RY -
KJ6KO -
Mike Wolthuis -
Sam Nabkey