K3 FM filter problem

[Chris Meagher-2]

Hello,

Have just installled FM filter into slot 1.
Other filters are 2.7 in slot 3, 1.8 in slot 4.
Also just installed KVX3, all appears to be OK with that.

The problem is that when go 6 metres, select FM mode and press PTT, I get ERR TXF,
which according to the manual p60 rev.c1-3, is incorrect filter bandwidth.

I have the following set-up in CONFIG menu.

FL1 BW  - 12.50
FL1 FRQ  - 0.00
FL1 GN  - 0dB
FL1 ON  - YES
FL TXFM  - FL1
FM DEV  - 4.9 (This was default value showing, can't find reference to this menu item in manual)
FM MODE - ON

On receive I hear a lot of noise, the level does not change if antenna is connected or not.

All SSB operation using FL3 for TX is normal.

Any help appreciated.

Chris

VK2LCD

Basic K3 @ 10W + KVX3
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[Don Wilhelm-4]

Chris,

I don't have the FM filter here, but as I recall, the filter bandwidth
must be set to 13 kHz - try it and see if it 'fixes' the problem.

73,
Don W3FPR

Chris Meagher wrote:

> Hello,
>
> Have just installled FM filter into slot 1.
> Other filters are 2.7 in slot 3, 1.8 in slot 4.
> Also just installed KVX3, all appears to be OK with that.
>
> The problem is that when go 6 metres, select FM mode and press PTT, I get ERR TXF,
> which according to the manual p60 rev.c1-3, is incorrect filter bandwidth.
>
> I have the following set-up in CONFIG menu.
>
> FL1 BW  - 12.50
> FL1 FRQ  - 0.00
> FL1 GN  - 0dB
> FL1 ON  - YES
> FL TXFM  - FL1
> FM DEV  - 4.9 (This was default value showing, can't find reference to this menu item in manual)
> FM MODE - ON
>
> On receive I hear a lot of noise, the level does not change if antenna is connected or not.
>
> All SSB operation using FL3 for TX is normal.
>
> Any help appreciated.
>
> Chris
>
> VK2LCD
>
> Basic K3 @ 10W + KVX3
> _______________________________________________
> Elecraft mailing list
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> You must be a subscriber to post to the list.
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[KK7P]

> The problem is that when go 6 metres, select FM mode and press PTT, I get ERR TXF,
>
> I have the following set-up in CONFIG menu.
>
> FL1 BW  - 12.50

This must be 13 kHz

73,

Lyle KK7P

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