Q400
Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Less Severe
General None Reported / Taken
Aircraft; ATC Equipment / Nav Facility / Buildings
I have noticed a significant and consistent increase of frequency interference (loud static) over 123.77 (PDX Tower) that is hard to talk over via the interphone. These events are occurring on final and departure; at various altitudes (including below 1;000 FT AFE) in various tail numbers. While it doesn't seem to affect comm transmissions or reception; it can significantly interfere with crew communication. Duration has lasted approximately 15 seconds or more on some occasions. It seems like interference issues which were encountered some time back; have resurfaced. It doesn't appear to be called out by other traffic or caused by someone's stuck mic. It also could be limited to our type of aircraft since the Q400 radios continue to be sub-par.
Q400 Captain experiences frequency interference (loud static) over 123.77 (PDX Tower) that is hard to talk over via the interphone.