[OZAPRS] [amsat-bb] FalconSat-3 sig level to decode

[Andrew Rich]

Cool

Ken how are you doppler correcting sdr# ?

If I can do that I am set 

Sent from my iPhone

> On 13 Oct 2017, at 8:17 am, Ken Swaggart <k.swaggart at charter.net> wrote:
> 
> I'm using  the AirSpy (not mini) with SDR#. Doppler tuning with homebrew
> software. Haven't noticed lost packets when the SDR freq changes, but will
> be on the lookout for that.
> 
> The audio loopback is Virtual Audio Cable. 
> 
> SSB Preamp
> 
> Rotator is a G5500 and LVB Tracker controlled  by my homebrew software. (I
> really like the LVB Tracker!)
> 
> Sound modem is Dire Wolf which feeds APRS-IS.  At the present time I'm just
> watching the packets scroll by on the Dire Wolf display. My main goal was to
> Igate the FalconSat-3 packets.
> 
> 73,
> Ken, W7KKE
> 
> -----Original Message-----
> From: Andrew Rich [mailto:vk4tec at tech-software.net] 
> Sent: Thursday, October 12, 2017 15:07
> To: Ken Swaggart <k.swaggart at charter.net>
> Cc: AMSAT -BB <amsat-bb at amsat.org>; Australian APRS Users
> <ozaprs at aprs.net.au>
> Subject: Re: [amsat-bb] FalconSat-3 sig level to decode
> 
> 
> Hi Ken 
> 
> I thought you might have good antenna 
> 
> Hey 
> 
> So your on windows 
> 
> + AirSpy Mini
> + SDR#
> + What audio loop back
> + Preamps
> + Rotator - from what program
> + What Sound modem ?
> + What APRS / TNC style program
> 
> - Andrew - 
> 
> 
>> On 13 Oct 2017, at 4:12 am, Ken Swaggart <k.swaggart at charter.net> wrote:
>> 
>> On this morning's FalconSat-3 pass, I checked the signal required to 
>> decode using Dire Wolf. It was 18 dB SNR, so that's roughly S3 +/- 
>> above the noise floor.
>> 
>> RX setup: AirSpy SDR, SDRsharp, mast-mounted preamp, 15  X 15 X Yagi,
> G5500.
>> 
>> 73,
>> Ken, W7KKE
>> 
>> _______________________________________________
>> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available 
>> to all interested persons worldwide without requiring membership. 
>> Opinions expressed are solely those of the author, and do not reflect the
> official views of AMSAT-NA.
>> Not an AMSAT-NA member? Join now to support the amateur satellite program!
>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>