Zeromatic?!?!?!?!?!?

[RadioMarkW]

Hello all,

I have just a small question I was ignoring until I got my new 2055 yesterday.

What is Zeromatic? I know it is on my 95's as well, but neither manual explains it well. They only realy tell you how to turn it on or off.

It seems with the 95 it is done globaly and on the 2055 you can set it for the differant search groops.

What is the advantage/disadvantage of having it set on or off?

Just what does it do?

Thanks,

mark

 

[Al42]

The receiver is broad enough that ... well, let's take some numbers.

Say you're searching, and the scanner stops at 154.4225 MHz. You look it up, but no one in your area is using that channel - the closest thing you can find is 154.430 MHz, 7.5 KHz away. The scanner is broad enough that even though it's tuned to 154.4225, 154.43 comes through. (154.4375 will also.) But the signal is a little distorted.

Zeromatic will tune the scanner up a little to 154.430, so it sounds clear. FM receivers have a point at which, as you tune through a signal, that point's output goes from negative, through 0, to positive. Zeromatic tunes until that point is at 0. No big mystery.

 

[RadioMarkW]

Thank you for the information.

I kind of though that was how it worked, but was not sure.

So, your answer leaves me to my next question. Why would you not want it on all the time?

Regards,

Mark

 

[PhilJSmith67]

I keep Zeromatic on most of the time, except when searching the 935-940 MHz range, where active signals with varied signal levels are often 12.5 kHz apart. I've encountered unique conditions where Zeromatic will cause a weaker signal to be completely silenced/skipped if it is very close in frequency to a stronger signal.

Other than those relatively unique conditions, I would leave it on. It's certainly nicer to hit up/down only once to skip past an active frequency instead of three times for the same signal!

 

[RadioMarkW]

Thank you very much!!

Ragards,

Mark

 

[benjaminarthurt]

awesome explanation, ive been looking for this for ever now. THANKS!