FLR-PSA
The point I'm trying to make is in EM energy Jamming you Jam everything! within a range equal to about 3 X the square of the power output on each Freq. band. I Was talking to my Uncle (who was at the RAE as well as an RAF radar Chef-tech) about this some months ago and he said that means;
No coms, No ILS, No MLS, No GPS or DGPS, No TCAS II, No GPWS, No VOR, No DME or PDME, No TV, No Classic FM and ya ADF will just point at the Jammed.
Remember also the Jammer's technology is always newer than the technology of the encoder.