Re: [wsjt-devel] Rig LF Rolloff

2021-10-17 Thread Virginia Greene via wsjt-devel
Mike, Your solution is a great possibility. I’ve worked out a solution that’s fine for me. I’ve set my radio up so that the frequency response at the low end starts falling off around 200 Hz. And, it’s easy to switch between modes. Problem solved. For my end. The problem is that I have no

Re: [wsjt-devel] Rig LF Rolloff

2021-10-17 Thread Black Michael via wsjt-devel
On more potential solution -- In fox mode run pseudo-split and drop the frequency 500Hz automaticallyi.e. Fake-It mode for both RX & TX. Mike W9MDB On Sunday, October 17, 2021, 09:11:52 AM CDT, Virginia Greene via wsjt-devel wrote: Bill, This actually kept me up last night! For

Re: [wsjt-devel] Rig LF Rolloff

2021-10-17 Thread Virginia Greene via wsjt-devel
Bill, This actually kept me up last night! For “Normal” FT8 operation, your solution makes 100% perfect sense. The only downside I can see is that you lose that 200 Hz or 300 Hz at the top end of the band. That is a very fair trade-off. But, in DXpedition mode with a Fox and Hounds, it gets

Re: [wsjt-devel] Rig LF Rolloff

2021-10-16 Thread Virginia Greene via wsjt-devel
Bill, Just one observation on that. There’s a menu selection on both the KX3 and K3 that gives you a choice of ESSB transmit bandwidth. One choice is 3.0 KHz. That should meet the WSJT-X requirement, I believe. That is what my radio is set for. I think that you might need an optional

Re: [wsjt-devel] Rig LF Rolloff

2021-10-16 Thread Bill Somerville via wsjt-devel
On 16/10/2021 16:01, Virginia Greene via wsjt-devel wrote: As Bill wisely pointed out: 2) many rigs have considerable roll-off in receiver gain towards the bottom end of the expected receiver pass-band, the K3 is one of those BTW. This seems not to be well understood or appreciated. My own

[wsjt-devel] Rig LF Rolloff

2021-10-16 Thread Virginia Greene via wsjt-devel
As Bill wisely pointed out: 2) many rigs have considerable roll-off in receiver gain towards the bottom end of the expected receiver pass-band, the K3 is one of those BTW. This seems not to be well understood or appreciated. My own KX-3 rolls off rather sharply starting at about 400 Hz when