XTS3500 audio settings

BO-105 CBS-5 · Post by **BO-105 CBS-5** » Fri Jul 18, 2003 2:18 am

Need a few suggestions for optimizing the audio on my new XTS3500 from you experts out there.

Got the internal mic. gain set just right...it was a -3 and a bit too low....set to "0" and sounds about right.....a litttle "hotter."

Does anyone suggest turning "on" the AGC??

How about emphasis? I know what it does....but the HELP in RSS is a bit confusing. Will turning it "off" (on TX) "broaden" the audio by allowing more low frequencies to be passed...or should I leave it "enabled."

Recive emphasis.....same question....although I have to admit, the audio from this XTS3500 speaker is about the best I've heard from ANY HT....

Yes...will be using mostly for amateur TX....and we hams strive for the best audio.....

My thanks in advance!

Joe

apco25 · Post by **apco25** » Fri Jul 18, 2003 8:40 am

AGC will limit the audio and make it sound even no matter how loud you talk or what the background noise is doing.

I personally don't like AGC - just adjust the mic gain to your liking.

Pre-and De-emphasis - don't screw with it as its setup to make everything sound right.

RocketNJ · Post by **RocketNJ** » Tue Jul 22, 2003 7:10 pm

As APCO25 said AGC will make the audio sound "even" at the drawback of hearing more background noise when you are not talking or talking very low. It also tends to make the radio sound flat and compressed(lacking depth in the tx audio).

My 3500 is at 0 dB gain with AGC disabled.

TX Preemphasis and RX Deemphasis should be enabled. Disabling TX Preemphasis will make your radio sound muffled (lacking highs). Disabling RX deemphasis will make received calls sound too tinny.

George

BO-105 CBS-5 · Post by **BO-105 CBS-5** » Wed Jul 23, 2003 4:06 am

Thanks a lot gents.....exactly what I was looking for!

Joe

Astro Spectra · Post by **Astro Spectra** » Mon Jul 28, 2003 1:20 am

Turning on the TX audio AGC works well when the '3500 is in the hands of inexperienced staff particularly when in operating on APCO/ASTRO channels.

But the radio sounds a whole lot nicer with the AGC off!