I ran two receivers rsp2 and perseus side by side sharing the same antenna on the same frequency.
Sdr noise floor reduction.
Working with two power coops i got.
It should like any other receiver have a certain noise floor nf but this figure was hard to find on the internet so that i decided to measure it myself.
First i measured noise using cw mode with a 100 hz bandwidth.
Found some dirty wall warts and got rid of them.
Sdr spectrum noise floor running the numbers.
My objective was to calculate sdr spectrum noise floor from first principles using the above formula.
My noise floor on 160m in the daytime was s9 30.
The sdr that i use next to my transceiver is the airspy spyverter combination.
Written by admin 10 comments posted in amateur radio hf rtl sdr tagged with hf noise floor rtl sdr rtl2832 rtl2832u january 17 2017 lowering the noise floor on hf with high quality coax bonito is a company that sells various products such as their own small active antennas.
In this video mike shows how to use the nr noise reduction features in sdruno this is one of many video guides from sdrplay makers of the rsp family of s.
I ve recently received an rtl sdr dongle and i m picking up a lot of noise that is probably coming from my pc especially a lot of spikes on the 2m band.
Written by admin posted in rtl sdr tagged with noise radio frequency interference rfi rtl sdr rtl2832u 8 comments.
With a portable radio and a loop antenna i drove a lot of back roads mapping the noisy power poles.
I turned off all the power to my house to assure myself that the noise was not from a wall wart or anything else.
I ve already started using a usb extension cable instead of plugging the dongle into the pc.
Sorry i i just read the link to mariners blog so maybe external monitor is not used i still think it is the computer generating the noise wrap as many turns that will fit of the usb cable that connects to the dongle through a.
