The heavy jamming from the American B-52 attacker had begun precisely when he hit the missile-launch button on his control stick.

Despite heavy jamming by both sides, they must be in plain view of every radar from Bergen to North Cape.

Improved aircraft counter measures led to the development of the Fan Song-E with its better antennas which could cut through heavy jamming.

No deception, but heavy jamming.

Repeat, heavy jamming on radar and radio.

The An-74 wasn't responding to his calls, and radio communications in general were suffering from heavy jamming.

We're picking up heavy jamming, broad band.

At this range the heavy jamming would have little effect and his backseater would be able to tag them on radar.

He was getting heavy jamming, but his French-made radar was sophisticated enough to frequencyhop and avoid most of it.

I'm receiving heavy jamming and I can't maintain a radar lock.