From: Phil Allison on 5 Apr 2010 07:49 "Jeff Liebermann Radio Ham Fuckwit & LIAR " > One guess(tm) is that the Radio Shock amplifier is rather noisy. The > additional noise generated by the amplifier is stronger than the > previously weak signals. If really awful, weak signals will be > totally lost in the noise. ** Bollocks. > The Radio Shock amplifier might be oscillating, thus creating the > in-band strong signal necessary to create the blocking effect. ** More bollocks. Results would be very bad all over the band. > The FM tuner might have an AGC section. This is required for direct > digital receivers that have an A/D converter in the front end of at > the IF frequency. The AGC is necessary to use the entire range of the > A/D. These usually have a limited dynamic (amplitude) range and are > easily overloaded. When amplified, this would cause a strong signal > to disappear as it runs out of head room. ** Massive pile of BOLLOCKS !!! FM signals are not affected by amplitude limiting - cos limiting is just what the IF stage is designed to do. FUCKWIT !!! ..... Phil
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