No FT8 Decodes pn 80 Meters

[Richard-6]

K3s + KAT500 + 80m dipole

Using DATA mode on all bands, and have been ever since FT8 was invented.

This evening was my first look at working FT8 on 80 meters. The tuner is giving the radio a 1.0:1 match, and the waterfall is busy.

But there’s no decoding happening! I checked BND MAP in the CONFIG menu, and 3.5 is enabled.

Switched to 40 on the same antenna — great gobs of decodes.

Back to 80 — no decodes despite lots of signals in the waterfall and in my ears.

HOWEVER! If I switch to USB on 3.573, everything comes to normal life: waterfall AND decodes!

It gets weirder.

3.573 in DATA mode: I can transmit normally with normal ALC and power readings, but still nothing decodes.

3.573 in USB mode: I cannot transmit — NO ALC or power readings. But the waterfall and Decodes are normal!

WHAT?

I’ve gone through all the WSJT-X preferences (settings) and can find nothing overlooked.

Ideas?

Richard — W4KBX
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[Bob McGraw - K4TAX]

I have and use the same configuration as you describe.   Make sure both
VFO A and VFO B are in the same mode.   Be sure you are in DATA A
mode.   With DATA A mode it is a USB mode  as used for FT-8.

The right side of the display on the radio should show SPLIT just above
the VFO B frequency, then TX with the arrow pointing down to B, and then
DATA to the right.   When you press and hold DATA MD it should show
DATA    A  in the VFO B area.

I trust you are running WSJT-X  V2.0 and have the application running as
stand-a-lone.  Otherwise, no interfaces, no other applications, no
logging programs or such which could be controlling the radio.

73

Bob, K4TAX

On 2/25/2019 7:13 PM, Richard wrote:

> K3s + KAT500 + 80m dipole
>
> Using DATA mode on all bands, and have been ever since FT8 was invented.
>
> This evening was my first look at working FT8 on 80 meters. The tuner is giving the radio a 1.0:1 match, and the waterfall is busy.
>
> But there’s no decoding happening! I checked BND MAP in the CONFIG menu, and 3.5 is enabled.
>
> Switched to 40 on the same antenna — great gobs of decodes.
>
> Back to 80 — no decodes despite lots of signals in the waterfall and in my ears.
>
> HOWEVER! If I switch to USB on 3.573, everything comes to normal life: waterfall AND decodes!
>
> It gets weirder.
>
> 3.573 in DATA mode: I can transmit normally with normal ALC and power readings, but still nothing decodes.
>
> 3.573 in USB mode: I cannot transmit — NO ALC or power readings. But the waterfall and Decodes are normal!
>
> WHAT?
>
> I’ve gone through all the WSJT-X preferences (settings) and can find nothing overlooked.
>
> Ideas?
>
> Richard — W4KBX
> ______________________________________________________________
> 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

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[Bill Frantz]

In addition to Bob's suggestions, check that your aren't in REV
mode (hold the left side of the moce key). I remember one time I
managed to turn that on in a CQP contest while calling CQ, and
some other station kindly pointed out my error.

73 Bill AE6JV

On 2/25/19 at 5:13 PM, [hidden email] (Richard) wrote:

>K3s + KAT500 + 80m dipole
>
>Using DATA mode on all bands, and have been ever since FT8 was invented.
>
>This evening was my first look at working FT8 on 80 meters. The
>tuner is giving the radio a 1.0:1 match, and the waterfall is busy.
>
>But there’s no decoding happening! I checked BND MAP in the CONFIG menu, and 3.5 is enabled.
>
>Switched to 40 on the same antenna — great gobs of decodes.
>
>Back to 80 — no decodes despite lots of signals in the waterfall and in my ears.
>
>HOWEVER! If I switch to USB on 3.573, everything comes to normal life: waterfall AND decodes!
>
>It gets weirder.
>
>3.573 in DATA mode: I can transmit normally with normal ALC and
>power readings, but still nothing decodes.
>
>3.573 in USB mode: I cannot transmit — NO ALC or power
>readings. But the waterfall and Decodes are normal!
>
>WHAT?
>
>I’ve gone through all the WSJT-X preferences (settings) and can find nothing overlooked.
>
>Ideas?
>
>Richard — W4KBX

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