[TenTec] Lock the 2.4 KHz Roofing Filter?

Sinisa Hristov shristov at ptt.yu
Fri Feb 20 04:08:39 EST 2004


Bernard wrote:
 
>     I have read the Orion manual a couple of times waiting for the arrival of my new rig and I have a question about the roofing filters.  I mainly operate SSB and rarely get on CW.  Since the 2.4 KHz roofing filter is not engaged until the bandwidth is less than 2.0 KHz, would I be better to just lock in the 2.4 filter and forget about the automatic feature?  I would think that on a crowed band or working DX on a 5 KHz split that the 6 KHz roofing would be a little too wide.  And, I really don't like listening to SSB with less than a 2.0 KHz bandwidth.


Use "Auto".

The 2.4 kHz filter used in addition to a similar DSP filter will
significantly reduce the bandwidth. Measured bandwidth is 2.174 kHz
at -3 dB, and the filter is practically flat to ~ 2.0 kHz width.

Using 6 kHz filter will not be a handicap until a very, very strong
signal appears next to one at the noise level, by by then you'd
certainly narrow the bandwidth and 2.4 kHz filter will become
engaged.


73,

Sinisa YT1NT, VA3TTN


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