Wireless Mic aeriel help

[stuee]

hi, i jsut purchased for my karaoke 2 base stations (2 cordelss mics per base)  they are huge items about the size of a dvd player, when i opened them thay has a tiny board in it, ive now mounted them in my rackmount without the case and in one strip. My question is. Each mic had its own aeriel. Would i be able to put them all together on 1 aeriel so i dont have to pull out 4 everytime i have a gig. The details from the box are  FM 110-270


Thanks for any help

[audioguru]

You usually cannot put together the inputs to radio receivers without them loading the others down.

The same happens if you put together the outputs of transmitters, and can damage them.

Use 4 separate aerials. ;D

[stuee]

But, each mic uses a different frequency so and its only the receivers. so why would it be a problem of blanking, if thats the case wouldnt you not be able to watch two tv chanels at the same time or listen to 2 radiostations at once?  or am i going out of my depth :P  thanks

[audioguru]

If the receivers have a very good tuned circuit at their inputs, if you connect them together then the tuned circuit of one will be like a dead short to ground at the frequencies of the others. If they don't have an input tuned circuit then the single aerial will be loaded with an impedance only 1/4th of what it would be with a single receiver.

With TV's, you can connect their inputs together with an impedance-matching transformer (splitter), but the signal to each one is also reduced.