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Low RX audio on XPR7550's compared to XPR6550's

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RFguy
Posts: 1294
Joined: Wed Dec 21, 2005 6:17 am

Low RX audio on XPR7550's compared to XPR6550's

Postby RFguy » Thu May 04, 2017 8:01 pm

We have a user with a number of UHF XPR6550's on a Capacity+ system. We just added in some XPR7550's (non-e version) and the user is complaining that the RX level on the XPR7550's are considerably lower than the existing XPR6550's.

I can't see anything in the codeplug that would reduce RX volume. Any thoughts?

I haven't checked firmware rev levels yet.

ard099
Posts: 83
Joined: Sun Nov 26, 2006 1:00 pm

Re: Low RX audio on XPR7550's compared to XPR6550's

Postby ard099 » Fri May 05, 2017 7:31 am

Had a similar situation with the 7550e radios and 2.07.01 firmware. The rx audio dropped drastically. Did a device recover and it resolved the issue. I created a new codeplug and all is well. Not sure if I had a codeplug issue or the device just didn't like the new firmware. I've also had to go into tuner and turned the volume up to the max to get it close to a HT1250 rx audio level.

n1gtl
Posts: 91
Joined: Tue Mar 25, 2008 12:43 pm
What radios do you own?: XPR5550, XPR7550e

Re: Low RX audio on XPR7550's compared to XPR6550's

Postby n1gtl » Fri May 05, 2017 9:39 am

Part Number: HKVN4492A
Description: MOTOTRBO RADIO RX AUDIO LEVELING


EID for Rx Audio Leveling for the 3500 and 7550 series radios. $3.50 list.

RFguy
Posts: 1294
Joined: Wed Dec 21, 2005 6:17 am

Re: Low RX audio on XPR7550's compared to XPR6550's

Postby RFguy » Fri May 05, 2017 7:10 pm

n1gtl wrote:Part Number: HKVN4492A
Description: MOTOTRBO RADIO RX AUDIO LEVELING

EID for Rx Audio Leveling for the 3500 and 7550 series radios. $3.50 list.


Thanks for that, but I hate EID's like that. If you have one or 2 radios with an feature enabled, you can no longer clone a codeplug to it. You end up with multiple versions. It's a real pain in the a** for fleet management.

User avatar
Astro Spectra
Posts: 609
Joined: Sat Sep 22, 2001 4:00 pm

Re: Low RX audio on XPR7550's compared to XPR6550's

Postby Astro Spectra » Sat May 06, 2017 6:02 am

Some of the 'TRBO line don't seem to handle clone well with firmware or CP differences between donor and victim.

The audio EID is not to fix this problem but to deal with mixed audio levels noticeable with mixed vendor DMR fleets and particularly noticeable on the DMR-MARC and BM ham networks where everyone seems to have their own unique (or inherited) tx audio settings.

One of the users here, toojaygee, has done a deal of testing on the levelling EID and reports it works well.

com501
Posts: 1000
Joined: Fri Nov 02, 2001 4:00 pm
What radios do you own?: Over 50 - All Motorola

Re: Low RX audio on XPR7550's compared to XPR6550's

Postby com501 » Sat May 06, 2017 6:44 pm

The default audio levels in tuner were changed lower in recent firmware versions. That did however, stop the failed internal speaker problem on the 7xxx series. Default audio is noticeably lower on recent radios from the factory.


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