Friends, I need some help.
I had some problems with my old Pi, and had to replace it. I used the same memory card. However, now I’m getting terrible results in my reception, where I can’t get more than , where 20/30 before reached 50/70NM. With that, I would like to check what I can do to try to improve my range or if I am having any other type of problem, either with the antenna or my ADS-B receiver
Antenna: Jetvision A3 ADS-B Antenna 1090 MHz
Receiver: RTL-SDR V3
Raspberry: PI 3 - Model B
The antenna is positioned over an open area.
My receiver details:
root@raspberrypi:~# rtl_test -t
Found 1 device(s):
0: Realtek, RTL2838UHIDIR, SN: 00001090
Using device 0: Generic RTL2832U OEM
Detached kernel driver
Found Rafael Micro R820T tuner
Supported gain values (29) 3.4 43.9 44.5 48.0 49.6
[R82XX] PLL not locked!
Sampling at 2048000 S/s.
No E4000 tuner found, aborting.
Reattached kernel driver
My configuration dump1090-fa
# dump1090-fa configuration
# This is sourced by /usr/share/dump1090-fa/start-dump1090-fa as a
# shellscript fragment.
# dump1090-fa won't automatically start unless ENABLED=yes
ENABLED=yes
# SDR device type. Use "none" for a net-only configuration
RECEIVER=rtlsdr
# serial number or device index of device to use (only needed if there is more than one SDR connected)
RECEIVER_SERIAL=
# Initial receiver gain, in dB. If adaptive gain is enabled (see below) the actual gain
# may change over time
RECEIVER_GAIN=60
# Adjust gain to try to achieve optimal dynamic range / noise floor?
ADAPTIVE_DYNAMIC_RANGE=yes
# Target dynamic range in dB (leave blank to autoselect based on SDR type)
ADAPTIVE_DYNAMIC_RANGE_TARGET=
# Reduce gain when loud message bursts from nearby aircraft are seen?
ADAPTIVE_BURST=yes
# Gain range to allow when changing gain, in dB (empty = no limit)
ADAPTIVE_MIN_GAIN=
ADAPTIVE_MAX_GAIN=
# Turn on options to reduce load on slower CPUs, at the expense of slightly worse decoder performance.
# Setting "auto" will enable these options only if the CPU appears to be a slow CPU (currently this
# means armv6 only, e.g. Pi Zero)
SLOW_CPU=auto
# Local wisdom file used to select DSP implementations; uses built-in ranking if the file is missing
WISDOM=/etc/dump1090-fa/wisdom.local
# Correct CRC errors where possible
ERROR_CORRECTION=yes
# Receiver location, used for some types of position decoding. Provide the location as
# signed decimal degrees. If not given here, dump1090 will also try to read a receiver
# location from /var/cache/piaware/location.env (written automatically by PiAware, if installed)
RECEIVER_LAT=
RECEIVER_LON=
# Maximum range, in NM. Positions more distant than this are ignored. No limit if not set.
MAX_RANGE=360
# Network ports to listen on for connections
NET_RAW_INPUT_PORTS=
NET_RAW_OUTPUT_PORTS=30002
NET_SBS_OUTPUT_PORTS=30003
NET_BEAST_INPUT_PORTS=30004,30104
NET_BEAST_OUTPUT_PORTS=30005
# Accuracy of location written to JSON output
JSON_LOCATION_ACCURACY=1
# Additional options can be added here:
EXTRA_OPTIONS=""
# If OVERRIDE_OPTIONS is set, only those options are used; all other options
# in this config file are ignored.
OVERRIDE_OPTIONS=""
# This is a marker to make it easier for scripts to identify a v6-style config file
CONFIG_STYLE=6
Any idea?
