[TenTec] NB verses NR
barry.n1eu at gmail.com
Mon Dec 15 14:13:10 EST 2014
On Mon, Dec 15, 2014 at 1:53 PM, Rick - DJ0IP / NJ0IP <Rick at dj0ip.de> wrote:
> The problem with placing two filters directly in series is, you will drop
> about 6dB of gain, assuming they are narrow filters. This needs to be
> compensated for with a low gain, low distortion amp.
He's not doing that. He only has one of the two active at any given time,
SSB or CW. And besides, the IR roofing filter has a built in amplifier to
account for the loss.
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