Setting band edges on the K3

[Elecraft mailing list]

I have searched the manual etc. and cant find a way of setting the band edges. By which I mean the frequencies outside of which the transmitter will not function. Here in Europe (as elsewhere I believe) different countries have different band edges - this is particularly so for the 5MHz band. It would be all too easy for me to respond to an FT8 CQ (for example) from a European station and find that I was transmitting outside of the UK 5MHz band. OK so I can fix my transmit frequency but it would be nicer if I could set band limits.
Have I missed something - is this facility hidden somewhere??
Andy G4HUE, K3, KPA500, KAT500, P3 owner.

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[David Woolley (E.L)]

The UK 5MHz allocation is not a single continuous allocation.  It is
more like number of spot frequencies with allowances for different
bandwidths.  Applying frequency fencing would need consideration of
modes and filters as well as frequency.

In general, I believe that Elecraft set frequency limits based on the
destination country, although I don't think they can cope with
essentially spot allocations.

I believe there are ways of changing the allocations in the field, but
they are not in the public domain and users have to demonstrate
authorisation for the frequency.

--
David Woolley
Owner K2 06123

On 16/01/2019 09:08, ANDY NEHAN wrote:
> I have searched the manual etc. and cant find a way of setting the band edges. By which I mean the frequencies outside of which the transmitter will not function. Here in Europe (as elsewhere I believe) different countries have different band edges - this is particularly so for the 5MHz band. It would be all too easy for me to respond to an FT8 CQ (for example) from a European station and find that I was transmitting outside of the UK 5MHz band. OK so I can fix my transmit frequency but it would be nicer if I could set band limits.
> Have I missed something - is this facility hidden somewhere??
> Andy G4HUE, K3, KPA500, KAT500, P3 owner.
>

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[Don Wilhelm]

David,

As I recall, per country band limits must be set at Watsonville, CA or
an authorized repair facility.
That is done do comply with various country band limits for amateur
radio transceivers - most notably Japan and some other Asian markets.

Contact [hidden email] for a definitive answer.

73,
Don W3FPR

On 1/16/2019 10:37 AM, David Woolley wrote:

> The UK 5MHz allocation is not a single continuous allocation.  It is
> more like number of spot frequencies with allowances for different
> bandwidths.  Applying frequency fencing would need consideration of
> modes and filters as well as frequency.
>
> In general, I believe that Elecraft set frequency limits based on the
> destination country, although I don't think they can cope with
> essentially spot allocations.
>
> I believe there are ways of changing the allocations in the field, but
> they are not in the public domain and users have to demonstrate
> authorisation for the frequency.
>

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