Large variation in tracked aircraft

[Dutchie30]

Hi all,

I've been feeding data to Flightradar24 for some time now, and have noticed that there is a large variation in the number of mapped/tracked aircraft:

graph_image (1).pnggraph_image.png

As the number drops off quite suddenly (such as today, see below), and I'm very sure there was no immediate "no-fly-zone" in my area, I'm not really sure what's causing this issue.

graph_image (2).png

Any idea where to look? The log file looks good, no errors that I can tell. My config is below:

ac_map_size="3072"
build_arch="armv7l"
build_flavour="generic"
build_os="Linux"
build_revision="HEAD-91e2757.git"
build_timetamp="Jul 11 2016 09:24:44"
build_version="1.0.18-7"
cfg_baudrate=""
cfg_bs="yes"
cfg_host=""
cfg_mpx="no"
cfg_path=""
cfg_raw="yes"
cfg_receiver="dvbt"
cfg_windowmode="0"
d11_map_size="17"
feed_alias="T-(anon)"
feed_configured_mode="UDP"
feed_current_mode="UDP"
feed_current_server="83.140.21.85"
feed_last_ac_sent_num="1"
feed_last_ac_sent_time="1486669735"
feed_last_attempt_time="1486669068"
feed_last_config_attempt="1486669067"
feed_last_config_info=""
feed_last_config_result="success"
feed_last_connected_time="1486669068"
feed_num_ac_tracked="12"
feed_status="connected"
feed_status_message=""
fr24key="(anon)"
gps_tods="0"
last_json_utc="1486669630"
last_rx_connect_status="OK"
last_rx_connect_time="1486669055"
last_rx_connect_time_s="2017-02-09 19:37:35"
local_tods="71328"
mlat-mode="UDP"
mlat-number-seen="12"
mlat-ok="YES"
mlat-started="YES"
mlat-time-last-ping="1486669720"
mlat-time-last-push="1486669735"
mlat-time-last-push_count="5"
mlat-time-last-seen="1486669735"
mlat-time-stats="1486669737"
mlat-uplink-stats="0"
mlat_problem="no-config"
msg_ring_full="0"
msg_ring_length="0"
num_messages="5947"
num_resyncs="0"
offline-mode="no"
rx_connected="1"
shutdown="no"
time_update_utc="1486669679"
time_update_utc_s="2017-02-09 19:47:59"
timing_is_valid="1"
timing_last_drift="-8.0404"
timing_last_offset="+0.0009"
timing_last_result="success"
timing_source="NTP"
timing_time_last_attempt="1486669663"
timing_time_last_success="1486669663"
timing_time_since_last_success="596"

[jcinnb]

If it is 2/9 you are worried about, the NE storm probably the reason. I had about 1/2 my usual flights today today. Glad I was not trying to get to FL from New England.

[Dutchie30]

Thanks for the feedback, but as you can see in the graphs this happens frequently, so I'm not sure if this is related to weather.