Clay :

The difference is more than made up in the the fact that the new AD
operates at 245 MHz and the old AD is 200 kHz and you get huge processing
gain in the downsample and filter process greatly increases the dynamic
range.

Bob
 On May 18, 2012 4:46 PM, "Clay W7CE" <w...@curtiss.net> wrote:

> Did anyone else notice that the receivers on the 6500 and 6700 use a
> 16-bit ADC rather than 24-bit like the 5000A?  That reduces the dynamic
> range by up to 48 dB (same dynamic range as the 1500).  That will probably
> be fine on HF, but I already have occasional problems with ADC saturation
> on 6M when locals (within 25 miles) running 1500 watts are transmitting in
> the 96 or 192kHz bandpass of my current frequency.  Of course, I can
> eliminate the saturation by turning off my preamp, but then I can't hear
> the weak station I was trying to work.
>
> 73,
> Clay  W7CE
>
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