Messages

1

SDR - Software Defined Radio / Re: RX-888 Unboxing and mini-review

« on: October 31, 2020, 1640 UTC »

Hi Kris,

I had no antenna connected to my RX-888 intentionally, as I was showing Chris Smolinski the different noise floor my receiver has, and the fewer spurs. This was for comparison to the similar screenshots he posted of his RX-888 without an antenna connected.

My RX-888 works great with a low CPU & GPU load, both on SDR-Console and HDSDR. If I run the receiver on the full 32 MHz bandwidth, CPU is around 25% as well as GPU. Normally I use 2 MHz bandwidth for medium wave coverage however (about 7% CPU in that situation). I am using a new 17-inch "gaming" laptop, Acer Nitro 5 series.

I'm very happy with it. I like the RX-888 so much I just bought and took delivery of another RX-888 for backup and other uses 

73, Guy

2

SDR - Software Defined Radio / Re: RX-888 Unboxing and mini-review

« on: October 23, 2020, 0007 UTC »

Hi Chris, thanks for posting your RX-888 first impressions and the interesting screenshots.

My own RX-888 is showing fewer spurs and a lower noise floor when viewed in the same 32 MHz bandwidth with no attenuation in SDR-Console:



Here is the response with 20 dB attenuation:



I wonder what would account for this difference? Maybe I have some option or setting that varies from your own SDR-Console installation (I'm using 3.0.26, build 2017). I hope it's something like this, rather than quality control in the receiver.

The skeptic in me says "QA? whazzat??" when it comes to small-batch production runs from unknown electronics houses overseas, but I'm hoping it's just a software configuration matter 

73, Guy