Re: CW Transmit Filter Bandwidth
Posted by
Byron Peebles-3 on
Aug 21, 2018; 8:42pm
URL: http://elecraft.85.s1.nabble.com/CW-Transmit-Filter-Bandwidth-tp7644590p7644595.html
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?
>
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