[Elecraft] CW Transmit Filter Bandwidth

[Byron Peebles]

Don:

I do understand it works, since every unit is shipped that way.

My question is more in the vein of wouldn't using a 1kHz or less filter 
be safer/cleaner/logical for CW?

Obviously, not as a factory default, since only one filter is sure to be 
there, but on a per-user basis.

I thought years ago (before I had Elecraft) I read that a narrower TX 
signal made for a stronger signal within that narrower bandwidth.

73, Byron NZ3O


On 08/21/2018 04:33 PM, Don Wilhelm wrote:
> Byron,
>
> The K3/K3S is designed to use the filter that is installed "stock" in 
> all transceivers, so you need to select the 2.7 (or 2.8) filter for CW 
> (or any other mode except AM, FM or ESSB) for transmit.
>
> Requiring a 1kHz filter for CW transmit would require that filter be 
> included in the basic package and would increase the price of the 
> transceiver.
>
> This sounds like a 'curiosity' question - the K3/K3S works fine with 
> the 2.7/2.8kHz filter for CW transmit.
>
> 73,
> Don W3FPR
>
>
> On 8/21/2018 4:03 PM, Byron Peebles wrote:
>> I have noticed that Elecraft K3/K3S defaults to setting the wide SSB 
>> filter as the CW TX filter.
>>
>> Is there a technical reason for doing this? Would it be better to use 
>> a 1kHz filter or one of the narrow CW filters?
>