Can i mix wireless equipment from different vendors?

yes if the APs usingthe same standards Frequincies and Authentication Mechanisms without any properiatery protocols in the middle.

Yes, if you were compatible standards and frequency signal compatible

IEEE802.11: the maximum speed of this standard2-megapixel and signal frequency2.4GHz frequency and this exhibition interference from Almacroev of wired devices to use the same frequency and scope of coverage of this standard20-30 meters .

 IEEE802.11b: maximum speed of11 MB and2.4GHz frequency signal .

If the same frequency between the calibrator is communication between devices and uses the least of the standard speed .

IEEE802.11a: maximum speed of54 MB and5GHz frequency signal and this frequency

Interference does not occur with other devices because the frequency is not compatible with other devices .

IEEE802.11g: maximum speed of54 MB and2.4GHz frequency signal to match the with Calibrator other .

IEEE802.11n: theoretical maximum speed of250 MB and practically108 Mega Open Auto frequency for each frequency 

Because most wireless networking hardware vendors support the802.11 standard they can inter operate. However, we recommend verification as the standard is a fairly recent one, and does specify two different methods for wireless communications; Frequency Hopping (FH) and Direct Sequence Spread Spectrum (DSSS), which are not interoperable.

yes   depends on the hardware specification and manufacturing criteria

yes boss you can use any wireless equipment from and vendor in any wireless network for same purpose its simple no worries of frequencies and other issues  just run1 IP table for the network on all devices thats all

thanks

yes

yes u can mix wireless equipments from different vendors as far as the compatiblity issue is solved. such as encryption, codding and hard ware level issues