One Pi, Two Dongles, Two Maps, Two Receivers

[abcd567]

(1) INDEPENDENT SETUP OF 2 INSTANCES OF DUMP1090

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(2) AGGREGATED SETUP OF 2 INSTANCES OF DUMP1090

NOTE :
MLAT SHOULD BE DISABLED IF AGGREGATION IS USED
(MLAT gets confused by two receivers data in one feed, gives erroneous results, and ultimately crashes).

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AGGREGATION METHOD (Creating Data “Pipe”):

(1) Install netcat

sudo apt-get update
sudo apt-get install netcat

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(2) Create a file named mypipe.sh

sudo nano mypipe.sh   

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(3) Copy-paste any one of the following two codes (Do NOT copy-paste both):

(a) For Beast format

#!/bin/sh  
while true  
  do  
    sleep 30  
    nc 127.0.0.1 31005 | nc 127.0.0.1 30004  
  done

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(b) For AVR format

#!/bin/sh  
while true  
  do  
    sleep 30  
    nc 127.0.0.1 31002 | nc 127.0.0.1 30001  
  done

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(4) Save file (Ctrl+o) and close (Ctrl+x)

(5) Make file executable

sudo chmod +x mypipe.sh

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(6) Run the aggregation script mypipe.sh

./mypipe.sh & disown