K3 filtering

[Mike Scott-7]

I am wondering why Elecraft doesn't provide variable SSB transmit filtering.
We have receive filtering down to 50 Hz. Why not "dial-a" bandwidth transmit
filtering. We could have a stock 2.7 KHz filter but dialed down to 2.1 or
1.8 KHz for DX/Contesting. I guess the variable roofing filter will
eventually accomplish this but why not do it in the signal processor?

Mike Scott - AE6WA
Tarzana, CA (DM04 / near LA)
K3-100 #508/ KX1  #1311


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[Joe Subich, W4TV-3]

> I guess the variable roofing filter will eventually accomplish
> this but why not do it in the signal processor?

The variable roofing filter will have no impact on transmit
bandwidth as the K3 always transmits through the 2.7 or 2.8
KHz filter (until ESSB is available and uses the 6 KHz filter).

However, you can accomplish modest tailoring of the transmit
bandwidth using the equalizer to cut highs/lows as needed or
desired.

73,

   ... Joe, W4TV
 

> -----Original Message-----
> From: [hidden email]
> [mailto:[hidden email]] On Behalf Of Mike Scott
> Sent: Wednesday, April 02, 2008 8:29 AM
> To: [hidden email]
> Subject: [Elecraft] K3 filtering
>
>
> I am wondering why Elecraft doesn't provide variable SSB
> transmit filtering. We have receive filtering down to 50 Hz.
> Why not "dial-a" bandwidth transmit filtering. We could have
> a stock 2.7 KHz filter but dialed down to 2.1 or 1.8 KHz for
> DX/Contesting. I guess the variable roofing filter will
> eventually accomplish this but why not do it in the signal processor?
>
> Mike Scott - AE6WA
> Tarzana, CA (DM04 / near LA)
> K3-100 #508/ KX1  #1311
>
>
> _______________________________________________
> Elecraft mailing list
> Post to: [hidden email]
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
>  http://mailman.qth.net/mailman/listinfo/elecraft   
>
> Help: http://mailman.qth.net/subscribers.htm
> Elecraft web page: http://www.elecraft.com

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