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The 200 uses a single-chip section for its 2nd IF stage. IC1, a UTC3361 chip, has both IF filters located nearby. the 2nd IF filter, which is between pins 3 and 5, could probably have a second filter added in series to give a bit better rejection. You also need to keep in mind that a radio thats bleeding over will come through no matter how much extra filtering you use. Part of that bleedover is on the frequency you want to receive, IE the channel you are on, and it will be demodulated just like the desired signals. in many cases a radio with poor rejection is merely just a stronger receiver as far as sensitivity goes. Turning down the RF gain will usually solve the probelm.

[QUOTE="DTB Radio, post: 45589, member: 754"] The 200 uses a single-chip section for its 2nd IF stage. IC1, a UTC3361 chip, has both IF filters located nearby. the 2nd IF filter, which is between pins 3 and 5, could probably have a second filter added in series to give a bit better rejection. You also need to keep in mind that a radio thats bleeding over will come through no matter how much extra filtering you use. Part of that bleedover is on the frequency you want to receive, IE the channel you are on, and it will be demodulated just like the desired signals. in many cases a radio with poor rejection is merely just a stronger receiver as far as sensitivity goes. Turning down the RF gain will usually solve the probelm. [/QUOTE]

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