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U3S - Recommended LPF positions

Wes WB7BR All Messages By This Member #18455 Been searching thru messages and have not found a conclusive answer, so....with the Rev 4 LPF board, is there a recommended/preferred order for the individual lpf boards? Hi to low or otherwise? How about location 0? Thanks all. -- Wes AE6ZM Hereford, AZ ?
Wes WB7BR All Messages By This Member #18546 Just want to ping the group again with this question, as i do not see any responses yet. I have mine finished and working into my dummy load. Seems ok, but want to see what others have done in this regard. Thanks all VY 73 Wes AE6ZM Hereford, AZ ?
Hans Summers All Messages By This Member #18549 Hello Wes You may find this article on improving U3S harmonic attenuation interesting? - this applies to relay board Rev 4 (and below), and is what led to the changes for the current Rev 5 relay board.? If you have a Rev 4 board you will generally get best harmonic attenuation by having the highest frequency LPFs as close as possible to the coax connecting to your RF connector (to your antenna etc). Put the highest frequency LPFs closest to the output connection of the system. And the lowest frequency LPFs closest to the Ultimate3S.? 73 Hans G0UPL toggle quoted message Show quoted text On Mon, Nov 20, 2017 at 3:20 AM, Wes <wesbflyer@...> wrote: Just want to ping the group again with this question, as i do not see any responses yet. I have mine finished and working into my dummy load. Seems ok, but want to see what others have done in this regard. Thanks all VY 73 Wes AE6ZM Hereford, AZ ?
Wes WB7BR All Messages By This Member #18550 Thanks Hans, just what I needed to know. Just need to get up a stealth antenna and I will be OTA. -- Wes AE6ZM Hereford, AZ ?

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