At 5/22/2008 19:13, you wrote: >Eric, > >The 9182510Y17 filter is a Motorola product, made by Celwave. Call Motorola >Parts ID at 800-422-4210, and have the clerk find what the Celwave part >number is. Then call Celwave (RFS World) to get servicing data. It may be >a long shot, but also ask the Parts ID clerk what Motorola manual covers >this filter. You might luck out- if it's not out of print. > >It may be a good idea to ship the unit back to Celwave for a factory >conversion to your desired frequency. Such units seldom can be moved more >than 10 or 15 MHz without loop adjustment.
I have 3 of these window filters, though not quite the same part # (9182510Y26 & 9182510Y01 and 'Y02). The Y26 filter tuned into the 440 band with no problems (as received it was tuned to 409-416 MHz), while the Y01 needed modification to bring it up into the ham band. I can't remember the details of what I did other than I lengthened the threaded rods by soldering some heavy-gauge solid wire to the ends, & removed a wire coupler that was placed between 2 of the sections. One of the Y01s/Y02s is on the mountain, so I can't pop it open but I may have another one kicking around at work. If I do & you need the mod. details let me know. The center passband loss should be around 1 dB. Bob NO6B
