[ARC5] Fwd: [Glowbugs] Re: [Elecraft] US 60 Meter Band Changes Approved by FCC - CW Issues

Neil neilb at ihug.co.nz
Sat Nov 19 19:28:27 EST 2011


As I see it, you could work split VFO operation.  Set VFO A for
transmit on 5358.5, and VFO B on some frequency near 5357.0
to produce the CW note you prefer to listen to.

73 de Neil ZL1ANM


> For CW emissions (emission designator 150HA1A), the carrier frequency
> is set to the center frequency...
>
>  60M BAND FREQUENCIES (KHZ)
>     Carrier   Center
>     5330.5    5332.0
>     5346.5    5348.0
>     5357.0    5358.5
>     5371.5    5373.0
>     5403.5    5405.0
> ---END QUOTE---
>
> Note the *requirement*:  "For CW emissions ... the carrier frequency is
> set to the center frequency."
>
> For example, switching from USB Phone on 5357.0 kHz to CW on the *same*
> channel, the transmitter must transmit on 5358.5 kHz.  That will produce a 
> 1500
> Hz tone in a USB receiver set to 5357.0 kHz.  It appears that now a 
> transceiver
> will need to shift not only the transmitter's carrier from 5357.0 to 
> 5358.5 kHz,
> but also receiver's effective frequency up by the amount needed to produce 
> the
> desired sidetone when tuned to a 5358.5 kHz CW signal.  The wording in the 
> new
> rule seems to introduce an unfortunate and valueless complexity for CW 
> operation.




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