Sources of rfi

Radars:

• FAA airport radar 1350,1330 Mhz.
• 1350 pulse ~1usec duration, 1330 pulse 9 usec later.

50 db above noise Floor in 3Mhz Rbw,4 ms sweep (10Usec/pnt).
300MhzBW/3MhzRBW=20db so need 30db headroom
• 5 ipp sequence (avg 2700 usec). 12 sec rotation period.
• Radar blanker available. Blank for about 400 usecs.
• Aerostat radar (tethered balloon).
• (1256.5,1241.75),(1262.25,1246.2) (2 or 4 freq mode).
• 160 usec pulse/freq (320usec 2 frq), 1.6 Mhz bw, chirped.
• 7 ipps, 3200 usec avg. 10% pulse duration. less multi path than faa. No radar blanker for the correlator (yet).
• MOU with airforce. They blank their transmitter +/- 20 degrees in AO direction (so the front lobe is equal to the back lobe.)
• Punta salinas frequency agile radar (fps117).
• 1215 to 1400 Mhz 20 settings (each dual freq).
• Coordination exists. Normally run (1233/1247,1242/1256) which lie in the aerostat freq. range.
• Remy radar 1270/1290. single pulse (5usec?).