Hi Peeps. Reading the above I thought I may add my "two pennorth" . I acquired an Alinco DR150 a few years back, whos front end resembled a very wide barn door. Living in Huddersfield there is a local FM transmitter that cares not for Alinco DR150's. I was at the Rally in Blackpool that year and spied a trader with a very large 4 coiled 2 metre bandpass filter, who ... very kindly had a perspex front fitted. I studied and looked and studied some more, until I had the dimensions fixed in my brain. I acquired some 7mm copper tube and the results you can see in the photo. Not the nicest build, but "by eck" it did the job. To tune it up, I made a 2 metre sweep oscillator , and the rest, and the FM station were history. The tuning caps were 2 pence pieces. It never realised its power potential, local ragchews dont need 50 W
