60 meters FT8 mode was working OK on version 1.10.16 but is not working on version 2.0.17.

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  • Updated 11 months ago
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On V 1.10.16 I was able to Receive/Decode and Transmit Digital Modes JT 9, JT65 and the new FT8 mode. Loaded Version 2.0.17 and I can not transmit any more. I can use the Tune mode from the digital modes program and the Flex 6700 will go into transmit mode, but if I click on Tune (or ATU button) on the 6700 control panel it just flashes once and does not go into the Tune mode. The MOX button does put the 6700 into transmit but no signal is generated. I am using USB mode to transmit the digital modes and I wonder if the new Version 2.0.17 has rewritten the turf file so you can not use USB mode on 60 meters any longer. I know that we are not supposed to transmit USB on 60 meters, however FT8 is a Narrow band signal. Now What?
Al, N4AB
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Al

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Posted 11 months ago

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Tim - W4TME, Customer Experience Manager

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TURF files do not set the TX limits; they only set the region and the firmware sets the limits.

I suspect your TX filter and the frequency of the slice together exceeds the bandwidth of the 60m channel.