Re: Offset center spike?


I've wished for a zoom that will zoom around the active receiver rather than the center teet since V2 days. But as my Ulster-Scot grandfather observed, "If wishes were horses beggars would ride." Maybe it is time to remind Simon of that wish.


On 20190630 16:35:08, Dale Elshoff WB8CJW wrote:
Yes, I can manually offset with the slider each time but was looking to make a program configuration entry so the offset is retained for me even if I use the zoom or center function.
73 Dale WB8CJW
On 6/30/2019 8:17 AM, jdow wrote:
In general you want to avoid straddling signals across the central spike. Offset it slightly so that does not happen. The central spike will leave a remnant present that is the self-conversion of the LO beating with itself. That's noise that reduces your signal's quality.

On 20190630 04:25:21, Kriss Kliegle wrote:
Here;s some info on the DC Spike;,,,20,0,0,0::recentpostdate%2Fsticky,,,20,2,0,5928569

One can always put the RX'ed signal to either side of it until SDRC 'tames' it down. i.e. On my SDR-iq RXR's, it takes about 10-15 seconds of use before the DC spike disappears.Not sure how long (if at all) it is corrected using the RTL series sticks.

73 Kriss KA1GJU

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