AM and FM with FM Filter

[W1XT-2]

Folks,

Can a single Elecraft FM filter support AM and FM transmit and receive for occasional use with a K3?

Thanks,

Bob W1XT
Sun City West, AZ


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[Joe Subich, W4TV-4]

Yes - effective with MCU 4.57 for AM transmit

> MCU 4.57 / DSP 2.79, 10-24-2012
>
> * AM TRANSMIT CAN USE THE FM FILTER: The wide (FM) crystal filter can
> now be assigned to AM transmit as well as FM. This can potentially
> free up a crystal filter slot for customers who were using the 6-kHz
> filter only for AM.

and MCU 4.60 for ESSB transmit:

> MCU 4.60 / DSP 2.80, 11-17-2012
>
> * ESSB TRANSMIT CAN USE THE FM FILTER: The wide (FM) crystal filter
> can now be assigned to ESSB transmit as well as FM and AM. This can
> potentially free up a crystal filter slot for customers who were
> using the 6-kHz filter only for AM/ESSB. NOTE: The 6-kHz filter is
> still recommended for high-performance ESSB and AM receive, as it
> will provide significantly better close-in dynamic range than the FM
> filter.

73,

    ... Joe, W4TV


On 2014-06-28 2:51 PM, Bob Myers wrote:

> Folks,
>
> Can a single Elecraft FM filter support AM and FM transmit and receive for occasional use with a K3?
>
> Thanks,
>
> Bob W1XT
> Sun City West, AZ
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>

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