[OZAPRS] [amsat-bb] AirSpy Mini VS Funcube Dongle

[vk4tec at tech-software.net]

How can I get rid of this DC spike in the Funcube Dongle ?

Andrew

-----Original Message-----
From: AMSAT-BB [mailto:amsat-bb-bounces at amsat.org] On Behalf Of
vk4tec at tech-software.net
Sent: Monday, 23 October 2017 9:13 PM
To: AMSAT <amsat-bb at amsat.org>
Cc: 'Australian APRS Users' <ozaprs at aprs.net.au>
Subject: [amsat-bb] AirSpy Mini VS Funcube Dongle

Signal Comparison of AirSpy Mini vs Funcube Dongle PRO+

 

432.440 MHz

 

AirSpy Mini SDR 3/6 MHz

 

IF = 9

Mixer = Max 15

LNA = Max 15

 

Noise Floor -80 db

Signal Peak -50 db

S/N = 30dB

 

Funcube Dongle Pro + 192 KHz

 

LNA = Yes

Mixer = Yes

IF Gain = 11

 

Noise Floor -80 dB

Signal Peak = -35 dB

S/N = 45 db 

 

RTL-SDR Dongle 2 MHz

 

Did not compare at all - Noise Floor -50 dB / Bad S/N

 

HackRF

 

Did not compare - was more a GNUradio Tool 

 

The Funcube Dongle was 15 dB better than the AirSpy Mini 

 

But remember Fincude SBR is 192 kHz and AirSpy Mini is 3 or 6 MHz

 

Best: Funcube Dongle Pro +

 

Andrew

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