SDR Receivers Comparison on VLF, LW and NDB band скачать в хорошем качестве

SDR Receivers Comparison on VLF, LW and NDB band

SDR-Receivers Comparison on VLF, LW and NDB-band ** Airspy HF+, SDRplay RSP1A and ColibriNANO ** In this video I am comparing three SDR-Receivers. I have made few recordings with every receiver with the same antenna and choose the best one (one with the best SNR = signal-to-noise ratio). My intention was to ensure the same conditions for all three SDR`s in order to make as fair as possible comparison. For example, I was set the frequency span displayed on the window to be as same as possible for all three receivers. The vertical axis for the signal stregth, was set to be equal (in decibels) too.Airspy HF+ and ColibriNANO was set to their minimum sample rate (48 kHz). RSP1A was set to minimum sample rate (2 MHz and 8 decimation). No DSP enhancing on the SDR`s was used except APF (Audio peak filter) on ColibriNANO (I forgot to swith off). VIDEO CONTENT: 00:14 to 00:35 = ColibriNANO receiving VLF ALPHA signal on 14881 Hz (43 kHz frequency span window and 800 Hz CW filter bandwidth) 00:35 to 01:00 = RSP1A receiving VLF ALPHA signal on 14881 Hz (30.5 kHz frequency span window and 750 Hz CW filter bandwidth) 01:00 to 01:36 = Airspy HF+ receiving VLF ALPHA signal on 14881 Hz (33 kHz frequency span window and 800 Hz CW filter bandwidth) 01:36 to 01:58 = ColibriNANO receiving VLF ALPHA signal on 14881 Hz (23 kHz frequency span window and 800 Hz CW filter bandwidth) 01:58 to 02:25 = Airspy HF+ receiving VLF ALPHA signal on 14881 Hz (23 kHz frequency span window and 800 Hz CW filter bandwidth) - - - - - - - - - - - - - - 02:25 to 03:06 = RSP1A receiving LW Broadcast station with very weak modulation on 162 kHz (62 kHz frequency span window and 6kHz AM filter bandwidth) 03:06 to 03:46 = Airspy HF+ receiving LW Broadcast station with very weak modulation on 162 kHz (48 kHz frequency span window and 6kHz AM filter bandwidth) 03:46 to 04:26 = ColibriNANO receiving LW Broadcast station with very weak modulation on 162 kHz (42 kHz frequency span window and 6kHz AM filter bandwidth) - - - - - - - - - - - - - - 04:26 to 04:53 = Airspy HF+ receiving NDB (ID = NIK) on 302 kHz (48 kHz frequency span window and 1.2kHz LSB filter bandwidth) 04:53 to 05:22 = ColibriNANO receiving NDB (ID = NIK) on 302 kHz (43 kHz frequency span window and 1.2kHz LSB filter bandwidth) 05:22 to 05:50 = RSP1A receiving NDB (ID = NIK) on 302 kHz (31 kHz frequency span window and 1.2kHz LSB filter bandwidth) - - - - - - - - - - - - - - 05:50 to 06:26 = Airspy HF+ receiving NDB (ID = CF) on 346 kHz (48 kHz frequency span window and 0.73 kHz USB filter bandwidth) 06:26 to 06:51 = ColibriNANO receiving NDB (ID = CF) on 346 kHz (43 kHz frequency span window and 0.73 kHz USB filter bandwidth) 06:51 to 07:28 = RSP1A receiving NDB (ID = CF) on 346 kHz (31 kHz frequency span window and 0.73 kHz USB filter bandwidth) - - - - - - - - - - - - - - 07:28 to 08:12 = Airspy HF+ receiving NDB (ID = SZA) on 350 kHz (48 kHz frequency span window and 0.73 kHz USB filter bandwidth) 08:12 to 08:46 = ColibriNANO receiving NDB (ID = SZA) on 350 kHz (43 kHz frequency span window and 0.73 kHz USB filter bandwidth) 08:46 to 09:21 = RSP1A receiving NDB (ID = SZA) on 350 kHz (31 kHz frequency span window and 0.73 kHz USB filter bandwidth) - - - - - - - - - - - - - - 09:21 to 09:48 = Airspy HF+ receiving NDB (ID = BIA) on 474 kHz (48 kHz frequency span window and 1.2 kHz LSB filter bandwidth) 09:48 to 10:12 = ColibriNANO receiving NDB (ID = BIA) on 474 kHz (43 kHz frequency span window and 1.2 kHz USB filter bandwidth) 10:12 to 10:37 = RSP1A receiving NDB (ID = BIA) on 474 kHz (43 kHz frequency span window and 1.2 kHz LSB filter bandwidth) - - - - - - - - - - - - - - 73, Mile Kokotov, Z33T