Recorded using HF detektor wandering on the beach at Peenemuende in Northern Germany. Strong signals despite lack of potential signal sources close by. Stark contrasts between detektor signal when held close to the sand and when held high above the head
from 10000m over
This is the last part of a international long distance flight from Copenhagen to Tokyo (Narita). Landing at Narita Airport at the end. (Better analysis will follow..)
10000m above in the sky somewhere in Siberia
This recording is made by detektor in a international flight from Copenhagen to Tokyo somewhere above Siberia in near of Mongolia. The signal is comparatively quiet: A lot of Rhythmical and repeating signals.
Copenhagen – Sky 10000 m above
Detektor flew again to sky above 10000m up. Here how the BTS Signal fades out after 15min, when the place takes off and after some time (18:00), all GSM phones, which are still in operation/switched on try to reconnect after some time. Around 29:36 you can hear a GPS signal.
2010_09_13_1_flight_1_kopenhagen_takeoff.mp3
Tsuchiura (Ibaraki), japanese backgroundnoise + BTS signal
Compared to european BTS the japanese sound different. Must have some connection to different cellphone frequencies.
Berlin Tempelhof – repetitive signal with HF background
Recorded using HF detektor in the apron of Berlin Tempelhof former Flughafen. As previous entry with repetitive signal but now with more present HF background.
Berlin Tempelhof – unusual repetitive signal 01
Recorded using HF detektor in the apron of Berlin Tempelhof former Flughafen. High frequency background with an intermittent, repetitive loud chirping signal (a set of three peaks) returning every five seconds. The same signal was also heard in many locations around Tempelhof