RTL-SDR with SDRsharp
SDR# tends to be a lot lighter in terms of memory and CPU usage than other SDR software (eg. HDSDR), and with some more advanced features (eg. I/Q Automatic Calibration), is my preferred software on Windows. For linux, take a look at gqrx, powered by GNU Radio.
You can find the main website of SDR# at sdrsharp.com
In order to get the latest features, in particular with regards to fine-tuning of the RTL-SDR operation that has been added recently, you should use the Development versions
- SDR# Download Page - Click SDR# Dev for the latest features.
Before running the software for the first time you will need to install the drivers, you can find a guide for that at: rtlsdr.org/softwarewindows
HAB Telemetry Reception
- Use the narrowest possible bandwidth, you only need about 10KHz or so even if the payload TX drifts. The smaller the bandwidth, the more sensitive the receiver tends to be.
- Narrower demodulator filter is better
- This will avoid unwanted nearby signals affecting anything downstream of the demodulator, leading to a higher SNR feeding into your Digital Modem (eg. dl-fldigi)
- Disable audio filter
- Open IF filter up as wide as it will go for better audio bandwidth. (250kHz)