GR64 problem when placed too close to base station?


#1

I am wondering is there any RF saturation at -30dBm for GR64 when the devices is placed very close to a base station?? Since we have some communication issue now when placed the units too close to the base station.

Please advise and anyone can help


#2

You should be able to prove or disprove that theory quite easily by simply inserting an inline attenuator in the antenna lead?

That’s a bit vague: how close is “close”, and what sort of “issues”, precisely, do you have?

Remember that the base station’s radiation pattern is not uniform - you could quite probably be in a “dead spot” if you are directly beneath the antenna…

Maybe there’s an issue with minimum Timing Advance - you could try using AT+CCED to see if you can correlete exactly which parameter(s) relate to the onset of these “issues”…?


#3

Thanks, actually, I can’t find the command AT+CCED, but there is a AT*E2EMM command for engineering monitor mode.

But I just wonder is there any document mentioned about the RX saturation level in the module. I find nothing in the document.
Please advise


#4

Yes, I think that is the former Sony-Ericsson equivalent of Wavecom’s AT+CCED

And Siemens (or whatever they’re called today) had AT^SMONC…

No idea - I think you’d have to talk to your Distributor about that?

I guess it’s specified in the GSM standards…?