FlightAware ProStick and AirSpy

FlyingPeteNZ · December 1, 2019, 6:47am

Hi all,
I have an AirSpy mini on the way at the moment for use on my primary antenna. I already have a ProStick and was going to use that on a second Pi with my second antenna (one high gain with amp for long range, the other smaller with no amp for local traffic).

Given the AirSpy uses a different connectivity method from a standard SDR, is it possible to have both attached to one Pi and both feeding Dump1090-fa?

Thanks!

wiedehopf · December 1, 2019, 8:11am

That would mean you lose MLAT as you have two receivers connected to the same mlat client.

The airspy has enough dynamic range for both long range and close in traffic, the setup you describe shouldn’t be necessary.

Also i should remark that you will need an LNA for the airspy to use it to the full potential.

(And if you want to use the airspy at 20 MHz you can’t have any other USB devices due to bandwidth)

abcd567 · December 1, 2019, 9:39am

It is possible to have two sets (2 dump1090-fa + 2 piaware) on same Pi, one set for ProStick, other set for AirSpy,

github.com

abcd567a/two-receivers/blob/master/README.md

# 1 Pi 2 RECEIVERS 

## Installs two independent piaware receivers on one RPi </br>

## Please do NOT use a microSD card which already has dump1090-mutability or dump1090-fa installed. 
## This script requires a fresh 32-bit Raspberry Pi OS image written to microSD card. The script will itself install dump1090 (mutability or flightwaware, whichever you choose). </br>

## (1) Write Raspberry Pi OS (32-bit) to microSD card, enable SSH, enable WiFi (if needed), Power-up </br>
## (2) Serialize dongles as follows </br>
(a) Plug-in both DVB-T dongles into RPi </br></br>
(b) Issue following command to install serialization software: </br>
`sudo apt install rtl-sdr` </br></br>
(c) Issue following commands. Say yes when asked for confirmation to chang serial number. </br></br>
To serialize first dongle: </br>
`rtl_eeprom -d 0 -s 101` </br></br>
To serialize second dongle: </br>
`rtl_eeprom -d 1 -s 202` </br>

**IMPORTANT:** After completing above commands, unplug and then replug both dongles. </br>
## (3) Run the following  bash command: </br>

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FlyingPeteNZ · December 1, 2019, 8:37pm

I have wondered if the Airspy would help my dynamic range issue so hopefully that solves my issues.

I do already have a LNA in place, a Uptronics with ceramic filter, works well in current setup.

FlyingPeteNZ · December 1, 2019, 8:38pm

Was hoping to have them in the same feeder ID. Will see if the AirSpy improves my dynamic range as above first,

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