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Old 25th Sep 2017, 2:10 pm   #12
G6Tanuki
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Join Date: Apr 2012
Location: Wiltshire, UK.
Posts: 13,951
Default Re: Station Radio C-12

Remember though that a pi-coupler is essentially a low-pass-filter. At frequencies below the frequency it is tuned-to it will provide less than ideal selectivity, allowing a rather unrestricted path for signals on such frequencies to get straight into the RX RF-amp.

If you're using a longwire-type antenna and are near a powerful medium-wave broadcast station you may still have crossmodulation issues.
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