How does the frequency change on my ht45 mic? I can change it on the box.

Make certain the mic and the receiver are in the same exact frequency band. There are stickers on both products that list the frequency band.

The handheld is in a different frequency band than the receiver. There are stickers on both that saw what frequency range they can tune to.

Normally the mics and receivers are sold as a unit but replacement mics can be bought separately.
However the ATW-R11 has been discontinued so may now be hard to find.

This model has 20 available frequencies so you should be able to change frequencies okay.
NOTE - you will require a license for these frequencies

You can, and the results might be better than not optimizing, but they might be worse.
The optimizing process listens for resonant frequencies in the room (what pitch "rings" longer in your room) as well as damped frequencies (what pitch sounds "dead" in your room)
To do this, it needs a mic that's matched to the unit.

Different mics have different frequency response curves, so your friend's mic might think (for example) that 2500hz is really hot, but the yamaha mic would think it's normal.

Certainly won't hurt to try, but if you don't like the way things sound after optimizing, then just reset your yamaha to the default EQ.

I hate to be the bearer of bad news but those units are fixed frequencies and cannot be changed. You either have to find a mic that matches your receiver or vice-versa. The freeway 200 series comes in 3 freqs. two of witch you have with the addition of 170.245. Maybe you can find someone who has a damaged mic but still has the receiver with the freq. that you need for your mic.

Sounds like all of your mics are using the same frequency. What you can do is change crystals in each unit to change frequencies, this will allow each mic to use its own receiver.

hello firstable you need to know at how many ohms is the base unit then in microphone change the impedance transformer to match the low or high frecuency you want......saludos

No, when you buy multiple wireless mics you have to select different channels per unit if you want to use them on the same stage.

hope this helps
thanks for your rating

That's one correct assumption, but it's actually the element that gets damages causing the coil to rub. Open the top up and see if there is any damage, sung a magnifying glass as the tiniest crack could go un-noticed by the naked eye.

In testing these 2 did you change the frequency at all? trying with a different receiver, having another mic on the "bad" mics frequency?

Loss of lows can also be a sign of a bad wire as this sometimes tend to act as a high pass filter.

Did you do the obvious, change batteries?

jeff

same problem. did you ever fix yours?