SDRplay Community Forum

Hi; I'm running SDRUno 1.1 with SDRPlay RSP1. I am listening on 20m amateur band, mode is USB. Trying to pick out weak signals from the noise, I found that the NB (noise blanker) does very little to nothing. If I set threshold too low, then it cuts out the noise, and the signal, leaving a popping an...

Thanks for explaining that. I wish I could shift the LO in my Yaesu FT60 and VX150 when listening to "out of band" services like police/fire, and railroads. Sometimes I get really bad overload from my local police transmitter, which causes their signal to desense the receiver, making it very difficu...

Thanks guys; I guess the SDRPlay defaults to Zero IF so that you can get the full 10Mhz bw, which seems to be a big selling point. I am finding that I use 2Mhz most of the time. After all, there isn't one HF Amateur band that spans even 2Mhz! Interesting about the LO vs tuned frequency. When I first...

Hi; I was listening to a repeater on my Yaesu FT60R, and at the same time listening to the same repeater and its input on SDRPlay RSP1 with SDRUno 1.1. There was about 1/2 seconds delay on the SDR compared to the repeater direct on the Yaesu HT. I tried switching to ASIO drivers, but that didn't cha...

I had to learn the hard way when to use Zero-IF and when to use Low-IF, during which time I was baffled. I had been listening to the 40m band using the default Zero-IF. At some point I switched to the AM broadcast band, and found that when I tuned to one of my local stations (880Khz), set the filter...

Thanks for the advice DXer; I can't use the AM "Soft Filter", because I'm not listening to AM, but to SSB on the amateur bands. My USB cable does have ferrites at each end, but perhaps I could buy a better one. I also tried a different USB port, but couldn't find one that was less noisy. My "longwir...

Hi; I'm new to SDR, but not to Amateur radio. That said, I have never heard of "LO Plan Frequency", so I am trying to figure out what it is in regards to the setting in SDRUno 1.1 with SDRPlay RSP1. I do know that LO is Local Oscillator, and do understand basic receiver theory (I used to know more, ...

Does anyone know what the RSP2 does (if anything) to reduce images? It's been a while since I've been "in the books" on RF engineering. Would dual conversion reduce images, or just introduce new ones? I have to do a complete run on the RSP1, which I purchased a couple weeks ago, to determine where t...

On my Windows 10 and Windows 7 SP1 install of SDRUno 1.11, the Zap button doesn't appear to do anything at all, but the VFO button at the bottom of the SP1 window does center the current frequency in the window if zoomed in at least one level. Otherwise, that button does nothing as well. I have also...

Hi; I have a new SDRPlay running with SDRUno on Windows 10 and Windows 7 (dual-boot). Everything is working, albeit I am still learning the more technical workings of SDRUno, but I have one complaint. SDRUno doesn't seem to do enough to reduce the background noise (QRN) associated with simple random...