Primary Radar Beams on A/C weather Radar Returns
Hi Guys,
Just heard this for the very first time. If you are being locked on by a ground primary radar, your weather radar will have a strip of return on your ND (due to interferences?). Any comments ? Cheers, lion-g |
http://www.pprune.org/tech-log/38275...r-returns.html
Collins manual states the following ALIEN RADAR The WXR-2100 radar incorporates a sophisticated alien radar rejection algorithm that is designed to prevent interference from other airborne weather radars. However, high power military radars and military radar-jamming systems will “burn through” and cause display artifacts This is followed by a picture showing a "spike" Honeywell RDR4000 manual. EFFECTS OF INTERFERING RF SOURCES An interfering radio frequency (RF) source operating at a frequency close to the radar’s operating frequency can create unusual returns on the display (see figure below). These returns will appear as a single wedge of radar return that extends from very close range (< 5 nm) out to maximum range for the selected range scale. The wedge will typically cover from 3 to 5 degrees in azimuth and may, depending on the strength of the source, appear from green to red. These returns are caused by Continuous Wave (CW) sources of RF radiation. CW RF sources that can cause this effect include: • CW Military Radar • Radar Jamming Equipment • Satellite Uplink Equipment Adjusting the manual gain may help alleviate the effect of the interfering source but the effect will not completely disappear until the interfering source is no longer in the radar’s field of view and that area of the memory has been refreshed. |
Hi,
Thanks for the prompt reply. Must have missed it while reading thru the manuals. Cheers, lion-g |
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