Hi and thanks for checking out my ad.
Here is a 137MHz LNA for NOAA sats (NOAA 15, 18, 19). Mount it up by your turnstile or QFH, inject 12VDC into your coax, and you're good to go. I just upgraded my station so I don't need it anymore. Just tested it with a coathanger before putting it up for sale here (didn't want to go up on the roof in today's winds). See image from today below ... pretty darn good!
$25 + $5 ship CONUS. Paypal please. PM your interest.
Thanks!