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Author Topic: SDR DGPS Shootout: AirSpyHF+ Two Port vs Discovery  (Read 2644 times)

Offline ChrisSmolinski

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SDR DGPS Shootout: AirSpyHF+ Two Port vs Discovery
« on: August 21, 2019, 1535 UTC »
Another SDR DGPS shootout, this time the original AirSpyHF+ vs the new Discovery. Again, the 950 ft Log antenna through a low pass filter and splitter, so each SDR was running at the same time. I ran two instances of SDR# to keep things as fair as possible. The test was run mid morning, so not much DX expected, although Card Sound FL was a nice catch.

The DGPS band is 285-325 kHz, so these results may be applicable to NDB enthusiasts as well.

The 950 ft LoG (Loop on Ground) antenna is fed via one of my Cyclops antenna transformers and then coax to the shack
https://www.blackcatsystems.com/rf-products/cyclops_rf_ham_shortwave_radio_matching_transformer.html

All decoding done with Amalgamated DGPS of course, the premier DGPS decoding software. https://www.blackcatsystems.com/software/dgps_decoding_software_sdr.html

Another win for the Discovery, not only did it have more decodes for each station, it picked up two stations missed by the original version.

AirSpyHF+ (Original Version)
Count    ID   ref1 ref2 kHz   Baud City                           Country              Lat      Lon      km     Deg
248      778  192  193  292.0 100  Kensington, SC                 United States        33.491   -79.349  723    198
14       929  312  313  296.0 200  St Jean Richelieu, QC          Canada               45.324   -73.317  693    24 
4362     772  198  199  306.0 200  Acushnet, MA                   United States        41.749   -70.889  561    64 
4229     844  094  095  324.0 200  Hudson Falls, NY               United States        43.272   -73.542  489    35 
1673     839  118  119  322.0 100  Youngstown, NY                 United States        43.239   -78.972  427    338
3321     803  006  007  293.0 100  Moriches, NY                   United States        40.794   -72.756  378    70 
3394     806  012  013  289.0 100  Driver, VA                     United States        36.963   -76.562  307    173
5235     804  008  009  286.0 200  Sandy Hook, NJ                 United States        40.475   -74.02   266    70 


Discovery (New version)
Count    ID   ref1 ref2 kHz   Baud City                           Country              Lat      Lon      km     Deg
64       808  016  017  314.0 200  Card Sound, FL                 United States        25.442   -80.452  1,619  193
1272     778  192  193  292.0 100  Kensington, SC                 United States        33.491   -79.349  723    198
768      929  312  313  296.0 200  St Jean Richelieu, QC          Canada               45.324   -73.317  693    24 
119      838  116  117  319.0 200  Detroit, MI                    United States        42.306   -83.103  590    301
4762     772  198  199  306.0 200  Acushnet, MA                   United States        41.749   -70.889  561    64 
4583     844  094  095  324.0 200  Hudson Falls, NY               United States        43.272   -73.542  489    35 
1842     839  118  119  322.0 100  Youngstown, NY                 United States        43.239   -78.972  427    338
3490     803  006  007  293.0 100  Moriches, NY                   United States        40.794   -72.756  378    70 
3295     806  012  013  289.0 100  Driver, VA                     United States        36.963   -76.562  307    173
5309     804  008  009  286.0 200  Sandy Hook, NJ                 United States        40.475   -74.02   266    70 
« Last Edit: August 21, 2019, 2004 UTC by ChrisSmolinski »
Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 900 ft Horz skyloop / 500 ft NE beverage / 250 ft V Beam / 58 ft T2FD / 120 ft T2FD / 400 ft south beverage / 43m, 20m, 10m  dipoles / Crossed Parallel Loop / Discone in a tree