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About Reely340

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    RC-Cam Visitor
  1. Has anybody got an idea where the interference in the center of that video snapshot might originate from? I'm amazed by the almost digital look of the bright/dim changes and the very sharp vertical boundary of the interference. At app. 120 black/white changes per line, the frequency would be: 625 (PAL) x 25 fps x 120 = 1.875 MHz given the vertical span of 1/10 of 576 visible lines the duration is 625/(576/10) x 1/25 = 3,5ms interference duration. 1.875MHz for 3.5ms, does that ring any bells? The setup: test inside residential building, distance 8 yards, one wall in between, sign
  2. I've read about gaining 3dB or so from doing the saw filter mod. I think I understood that the reduced bandwidth gives better reception qualities to the receiver. IIRC people were switching to the ECS-D480A saw filter which has at 3dB a pass bandwidth of only 17.6MHz and comes with the usual insertion loss of 19-20dB. BUT I was wondering whether the gain for the receiver could much bigger when using a [b]low insertion loss saw filter like the VANLONG SF480 which has a rather normal 22dB bandwidth but comes with only 2.5dB insertion loss! Wouldn't that mean the signal is not dampe
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