Hi Bill,
I have two Omni 6 Plus rigs, fully filtered for CW and both rigs have
the 600hz roofing filter. One rig has the 750 hz offset and my main
radio has a 500hz offset. When you can drop 30 over QRN down to
S-5/S-7 without dropping the rcv'd signal level, I definately think
the addition of the roofing filter is worthwhile. Not only does it
improve rcvr performance in contest, it help in just about all CW
situations when a loud signal park's right next to you or you have a
bad QRN condition.
My wed
site http://tom.w4bqf.googlepages.com/roofingfilterforomni6plus
shows some Spectragram plots of the Plus with and without the roofing
filter and gives you an example of how well it works.
Tom - W4BQF
At Monday 04:01 PM 8/7/2006, you wrote:
>This question has probably been asked before so I apologize
>in advance.
>
>I have an Omni VI+ loaded with filters (including an INrad
>400hz cw filter in the n1 position). The RX performance is great
>compared to my Icom 756 pro II. I'm wondering if the already great
>performance can be improved by adding the
>INRAD 600hz roofing filter. I like to work dx but my antenna
>situation is poor at best. Would the addition of
>the roofing filter provide any signal/noise improvement?
>I know it would probably help in contest situations where strong
>close-in signals tend to cover up weak dx signals.
>Have any of you used the INRAD roofing filter for the OMNI
>series and what if any improvements did you note.
>
> thanks, Bill - W5HTG
>
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