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Debug test in RF product

时间:04-09 整理:3721RD 点击:
Hi,
For RF product mass debug test, how to avoide the EMI from each other? Any distance requirement for the two RF product(For us, it is 315MHz super-generative receiver).

I have the concern the oscillation in one receiver will degrade the sensitivity of another one when they are so close in mass production debug test.

Thanks

The only thing that you can do is to measure the radiated leakage (at certain distance) of the receive LO and see if is acceptable for the production test.
The interferer level at antenna connector should be at least 10dB lower than the desired sensitivity signal level.

Hi Vfone,
Thanks for the reply.

We found that when the two receivers is close near one meter, the interfer will be serious and begin degrade the sensitivity with eacher. So we are not sure if it meet the production test requirements.

Thanks

We had this kind of problem while ago and the only fix was to minimize the LO leakage (shielding, filtering, etc) way below the radiated EMI specification.
Or try to increase the distance between test setups.

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