[TenTec] Noise reduction of roofing filter?

[Grant Youngman]

> the sharper cornered the filter frequency response, the worse this is.
> Tentec filters are good at not stretching static compared to vintage
> Collins filters that turn a click to a crash or line noise spikes to a
> continuous noise. The narrow roofing filter will probably reduce the
> noise power but by stretching the pulse it will sound like its been
> increased.

Another undesirable side effect is that the pulse stretching can have
significant negative impact on the effectiveness of the NB.

Grant/NQ5T