> "Jim B." <[EMAIL PROTECTED]> wrote: > Umm-I got a question-are you converting the rx to narrowband?
The receiver does both wide and narrow band scan with programming so it hears both band-widths/modes. > Otherwise, when they start putting people 7.5 Khz from your > input, you'll hear them-fuzzy, but you'll hear them. I understand what you're saying but for a number of reasons it's not (yet) a problem. Nor do I/we expect it to be a problem with the described system. But never say never... > I'm hearing that on VHF systems already, with off-freq > narrowband stuff trashing a wide-band system. It's all about the location, receiver and various pre-selection & filters used. > Yeah, what you've got is not a bad way to transition, but > eventually you'll want to pull the wideband rx's when they > start putting people on adjacent freqs. It's easy enough to use an F-center detect circuit if it were a problem for us. But the newer receivers are pretty tight. Not related to the dual-width system... I have more problems on VHF with co-channel legacy system distant high-powered base stations taking out the local mobiles on the repeater inputs. A hot summer day makes for even more fun when someone in another state captures the local traffic. > Jim Barbour > WD8CHL The example multi-width system I mentioned can actually stay in service long term. The user will simply stop using the wide band input function and the receiver system remains the same. Over time I would expect everyone to be forced to narrow-band but we're operational now in both modes and covered up until that time... Cheers Jim, skipp
