SatNOGS reception comparisons.
Receiving the same satellite, at the same time with two different SDR receivers connected to the same x86/i386 debian system and running the same SatNOGS software.
The antenna's connected are at the same height and 2 meters apart.
This information also contains some experiments I am working on, at the end of the page there is an antenna design I am working on to see how well a 3 element yagi pointing straight up can be used. One is already active and second one that will have RHCP is currently being build.
|RX RTL-SDR Station 2176(UHF) and 2173(VHF)||RX Airspy Mini Station 431(UHF)|
SATNOGS_SOAPY_RX_DEVICE="driver=rtlsdr,serial=00001220" SATNOGS_RX_SAMP_RATE="2.048e6" SATNOGS_PPM_ERROR="-1" SATNOGS_RF_GAIN="29.7" SATNOGS_ANTENNA="RX" SATNOGS_DEV_ARGS="biastee=true"
SATNOGS_SOAPY_RX_DEVICE="driver=airspy,serial=04a464c83670830b,biastee=true" SATNOGS_RX_SAMP_RATE="3e6" SATNOGS_ANTENNA="RX" SATNOGS_GAIN_MODE="Settings Field" SATNOGS_OTHER_SETTINGS="LNA=10,MIX=7,VGA=11"
|LNA: nooelec||LNA: nooelec|
|Antenna: Winkler Spezialantennen, UHF Turnstile||Antenna: Vinnant, UHF Turnstile|
|Frames decoded: 11||Frames decoded: 3|
|RX RTL-SDR Station 1696||RX Airspy Mini Station 431|
|Antenna: Vinnant, UHF Turnstile||Antenna: Winkler Spezialantennen, UHF Turnstile|
|Frames decoded: 8||Frames decoded: 21|
|Frames decoded: 10||Frames decoded: 40|
3 element Yagi antenna prototype
This antenna is currently connected to SatNOGS groundstation 2176
3 element Yagi by RA3TOX antenna.
3 element Circular polarisation Yagi prototype.
We have combined two 3 element yagi antenna and are 1/4 lambda apart, lets see how this will perform.
Setup April 23, 2022
Setup Jan 14, 2023
Left 9 elements, DK7ZB, middle 3 elements RHCP and right 3 elements linear. Follow this link to compare some receptions. The same satellite at the same time with different antennas.