ATC: 121.5 Aviation Emergency, Snohomish County airports, Air2Air - Live Aviation ATC

US > Washington > King (County) [Seattle-Tacoma]

Listen	Feed	Genre	Listeners	Player Selection	Links	Status
	ATC: 121.5 Aviation Emergency, Snohomish County airports, Air2Air New AI optimized scope: Focused monitoring of 121.5 Guard emergency transmissions and Snohomish Coutny, WA local flight operations at Paine Field (KPAE), Harvey, and Monroe and Air2Air frequency.	Aviation	0			Online

Feed Notes

Located at 600ft elevation near the King/Snohomish, WA county border, this feed is dedicated to high-responsiveness monitoring of the 121.5 Emergency Guard frequency comms in a range over 160 nmi and local North Sound general aviation, some KPAE traffic and Harvey Field, and Monroe airport and Air2Air comms.

Note: High-altitude traffic is mostly covered on my Stratosphere feed to preserve local channel purity. That feed pairs well with my larger KSEA/Seattle commercial aircraft feed.

Active Frequencies Covered:

121.500 – EMERGENCY GUARD (VHF Distress)
127.175 – PAE CLNC (Paine Field Clearance Delivery)
123.000 – Harvey CTAF (Snohomish County)
122.800 – Monroe CTAF (First Air Field)
122.750 – Air-to-Air Operations

Prioritization Hierarchy:

Tier 1 (Priority 10): 121.5 GUARD. Primary emergency monitoring.
Tier 2 (Priority 6): PAE CLNC. Local Paine Field operations.
Tier 3 (Priority 2): Harvey CTAF and Monroe CTAF. Local recreational and training traffic.
Tier 4 (Priority 1): Air-to-Air. Secondary pilot communications.

Technical Specs: Powered by an Airspy Mini SDR and Raspberry Pi 5 with a DPD Productions Airband antenna at 50ft AGL.