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This is a working unit that has a dirty attenuator. When you tap the attenuator the response changes. If you look at the 6 pictures, pictures 1(0-500MHZ), 3(450-950MHZ) and 5(900-1400MHZ) represent the normal response and photos 2, 4, and 6 are the responses when the attenuator has been tapped and not making good contact. You can see from these photos that the low frequency end of each band shows deteriorated at the low frequency end, indicating a capacitive connection in the attenuator. Please contact me with any questions.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.