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1. Re: LF: Opera Monitoring 500 off air & 477 via Delft (score: 1): Author: Stefan Schäfer <[email protected]>; Date: Sun, 24 Jun 2012 18:10:20 +0200; Hi Jan, Thanks for the info. Yes, he seems to have a 500 kHz LO (?) due to the black gap at 500 kHz which seems to come from his lower cutoff frequency of the converter. If a 2 MHz ( /4) xtal is used; /rsgb_lf_group-archives/html/rsgb_lf_group/2012-06/msg00064.html (11,469 bytes)
2. Re: LF: Opera Monitoring 500 off air & 477 via Delft (score: 1): Author: pa3abk <[email protected]>; Date: Sun, 24 Jun 2012 17:38:51 +0200; Received an email from Wouter PA3WEG. The WebSDR is x-tal driven, but he will look at it to get the unit somewhat lower. He intends to widen the bandpass filter in such it will catch the lower end mo; /rsgb_lf_group-archives/html/rsgb_lf_group/2012-06/msg00374.html (10,635 bytes)
3. LF: Opera Monitoring 500 off air & 477 via Delft (score: 1): Author: "Graham" <[email protected]>; Date: Sat, 16 Jun 2012 17:02:24 +0100; Something just noticed , 477 is inside the Delft-web-sdr range .... ! Monitoring 500K off air and 477 via Delft can run x2 sdr and monitor 500/477 , but with x 2 noise .should work ? G.. http://websd; /rsgb_lf_group-archives/html/rsgb_lf_group/2012-06/msg00674.html (9,680 bytes)

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