Is this the same location as the previous threads/postings??
http://forum.tvfool.com/showthread.php?t=10056.
And other threads/postings??
Has the CS2V Complete VHF/UHF antenna been installed Above the Roof in such a manner that the roof and house are not blocking reception to the , north/north west , north east , south east , south , south west??
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If can not find the discontinued CPA-19 preamp then use a Winegard HDP-269 preamp.