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Messages - IQ_imbalance

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1
Gave it a shot but way too much QRM from a local AM station for some reason today.....

2
location:  Central MD.
0350 9.6MHz good reception on the waterfall, audio drifting in and out. 
0354 9.6MHz hearing the occasional note. 
0406 CW coming in strong on 9.1MHz
0411 no sign of anything on the waterfall around 5.26MHz except someone's radar

4
Just picked up a dual channel Afedri (yay me!) BUT i'm running into severe performance problems on my ~2015 imac (4GHz quad core i7 w/ 8Gb).  Basically i'm getting a lot of buffer overruns (underruns?) and unintelligible audio decoding  with the status display in SDRDX showing -1000 ppm.   If I turn off dual channel mode I'm still seeing -1000ppm but the audio decodes fine.   

I've tried reducing the bandwidth to 200kHz, dropping the FFT for the waterfall to 4K, and reducing the max display setting to something crazy low (5 updates/s).   In comparison I usually run my single channel afedri at 1000kHz bandwidth, with the FFT set at 16k and 50 updates/s. 

I think this is a processing issue on the computer and not a network issue as it persists whether or not i'm plugged directly into the radio w/ ethernet or not (vs. having it plugged into an unmanaged switch connected to my other radios). 

I know the dual channel radio doubles the amount of data coming in but ironically, I've been able to use the dual channel mode w/ HDSDR (controlling phasing through the Afedri control panel) on an even older (2006!) intel imac running windows, so not sure what's going on w/SDRDX on my mac.

Do i need a super duper computer w/ tons more RAM to get this to work on the mac? 


5
S5-7 here. 
0132-"spiritual corpses" Kinda bizarre. 

6
S5-7 here in central MD. pretty good audio; SIO 444. 

7
Started with CW transmission...."BEGINNING TRANSMISSION...FOXY? BEGINNING TRANSMISSION" then into music, some fussing about equipment (I think!)
0200 UTC: Station ID
0203 UTC: voiceover

S6...weakish signal, but very audible.

8
Coming in good Central MD.  S4-5. some static crashes. 

9
SDR - Software Defined Radio / Re: KiwiSDR future/replacement?
« on: April 16, 2023, 0324 UTC »
Seems like neither the raspberrysdr nor the fly dog sdr units are available:(. I’m really regretting not getting a kiwi when I had the chance

10
"Saucer of Loneliness"...hope someone is recording this!!!!

11
0223UTC:  Still going.  ~S7, fair amount of static.  SIO 333-ish

12
0218UTC S9 in Central MD with a 12k bandwidth!.  Playing around with new SDR software and didn't believe the S9 numbers until I looked at the logs here....
Love the waterfall images. 

13
Epic signal S5-6, with EXCELLENT audio.  Someone is just outdoing themselves!

14
Good S6 signal in central MD.  No idea what i'm hearing, but it's entertaining!

15
Really wide, strong USB signal! 


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