Changes

Here's a brief synopsis of what the frequency response from Rx to Tx is like with the DEFAULT (zero) filters that everybody is currently using   

Here's a brief synopsis of what the frequency response from Rx to Tx is like with the DEFAULT (zero) filters that everybody is currently using   

[[File:AllStarLink Filter 1|thumb]]

AllStarLink Filter 1.png

So, you can see that the low-end suffers quite a bit, as it's almost 8 dB down at 300 Hz.  It also has overshoots in excess of 1 dB centered at 425 and 675 Hz.  The high end falls off quite sharply as well.

So, you can see that the low-end suffers quite a bit, as it's almost 8 dB down at 300 Hz.  It also has overshoots in excess of 1 dB centered at 425 and 675 Hz.  The high end falls off quite sharply as well.

By switching to all 1's for the filters, the response and flatness if greatly improved [[File:AllStarLink Filter 2|thumb]]

By switching to all 1's for the filters, the response and flatness if greatly improved  

 

AllStarLink Filter 2.png

Notice the improvement at the low end and high end.   

Notice the improvement at the low end and high end.