acarsdec on RPi3

Getting ACARS decoding going on a Raspberry Pi 3 turned out to be relatively trivial.  I followed the instructions here. (Cool site, poke around.) Note the current version of acarsdec is 3.2 and I had to edit Makefile as documented to use rtl decoding only.

Took less than an hour, even with my cat Dora's 'help'. 

Apparently acarsdec CPU use was a concern on the RPi2. Just for grins I started arcarsdec with 6 frequencies instead of 4 and the CPU isn't even breaking a sweat.

Some sample decodes:


[#1 (F:131.550 L:-38 E:0) 05/06/2016 19:31:28 --------------------------------
Aircraft reg: .N355NB Flight id: NW1597
Mode: 2 Msg. label: 30
Block id: 5 Ack: !
Msg. no: M25A
Message :
051930 KMSP KPHL3
          A
GOOD RIDE SOUTH OF CLE.
TOPS AROUND FL370

[#5 (F:130.450 L:-22 E:0) 05/06/2016 19:50:45 --------------------------------
Aircraft reg: .N913AN Flight id: AA1201
Mode: 2 Msg. label: H1
Block id: 9 Ack: !
Msg. no: D74A
Message :
#DFBTRP 195022  40.9289  -81.3999 369 145.4 451   1474 0.01376
  81.00 -104.06 1.008  0.976  0.000 -0.015 -46  0 00 01 248 8    1382

[#6 (F:131.125 L:-32 E:0) 05/06/2016 19:59:01 --------------------------------
Aircraft reg: .N362NW Flight id: NW2811
Mode: 2 Msg. label: 39
Block id: 4 Ack: !
Msg. no: M86A
Message :
051939 KDTW KDCA3
2040

WCHR
ELEC CART
AISLE CHR
UM

I'll let this cook for awhile and see what I can do with the output next week.