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Syntor X9000, audio bandwith control?

Posted: Sun Oct 01, 2017 7:01 pm
by syntor9k
Hi,

I really like the Syntor x9000 radios. However, they do have the lower 250 Hz to 500 Hz muted it seems. My FT-857d has fuller audio, that someone listening on a Syntor x9000, can even here. I was wondering, if anyone knows of a sw or hw switch to allow more lows through the mic circuit?

Re: Syntor X9000, audio bandwith control?

Posted: Mon Oct 02, 2017 8:15 am
by motorola_otaku
Hammy radios also have poor/nonexistent modulation limiting so ¯\_(ツ)_/¯

Some light reading here: http://www.repeater-builder.com/tech-in ... ssion.html
edit: also http://www.repeater-builder.com/tech-in ... audio.html

Re: Syntor X9000, audio bandwith control?

Posted: Sat Nov 11, 2017 4:12 pm
by syntor9k
Thanks. Lots of heaving reading there. I was hoping someone knew of a simple fix.

Re: Syntor X9000, audio bandwith control?

Posted: Wed Nov 15, 2017 9:10 am
by Jim202
Back in the days the Micor was top dog, I found that changing a 0.1 uf coupling cap in the mic audio path brought up the low frequencies by changing it to a 1.0 uf cap. Haven't looked at the Syntor X9000 mic audio path. No one ever complained about my audio using one. Most of the time they commented that it sounded good.

Jim

Re: Syntor X9000, audio bandwith control?

Posted: Sat Dec 02, 2017 8:22 pm
by k9wkjham
sounds like a PL filter in action