I’ve never been or ever tried simulating being a fox, yet, but I presume the op 
can configure the max number of slots in software.  I wonder: does the software 
reduce the actual number of slots used dynamically in some fashion, up to the 
limit?  From the far side, it is certainly frustrating when a weak fox 
disappears completely as he uses all the slots … but on the other hand, he is 
maximizing his rate and maybe – eventually, when the pack subsides - I’ll get 
my big chance!

 

By the way, lately watching VP6R and 5K0K attempting to share the same chunk of 
band (on all modes) and the confusion that causes for callers who aren’t sure 
which one they are working (!), it occurred to me that on FT8 the waterfall 
above 1000 Hz goes [mostly!] blank when the foxes are transmitting, hence two 
foxes might share the band using even and odd timeslots respectively to 
increase band utilization … except I think the software currently gives foxes 
and/or hounds no choice.  Also, even + odd foxes would suffer mutual 
interference from even + odd hounds, so maybe this is not such a bright idea 
after all.  What do you think?

 

73

Gary  ZL2iFB

 

From: Black Michael via wsjt-devel <[email protected]> 
Sent: 25 October 2019 11:24
To: [email protected]; [email protected]
Cc: Black Michael <[email protected]>
Subject: Re: [wsjt-devel] F/H mode: new slots only when the existing ones are 
filled up?

 

I believe what he's saying is that the # of slots should be controlled better.

 

For example, if you are responding to a call from a single slot stay in the 
single slot.

Or use the signal report from incoming calls to determine if you can afford to 
lose the dB going to multislot with them.

 

It was mentioned a while ago about a new possible Fox mode where power loss 
would not be a factor which would be the best solution. Means more bits and 
wider bandwidth but that fits the Fox/Hound setup we have now with operators 
staying > 1000.

 

de Mike W9MDB

 

 

 

 

On Thursday, October 24, 2019, 05:17:04 PM CDT, Jim Brown 
<[email protected] <mailto:[email protected]> > wrote: 

 

 

On 10/24/2019 12:15 PM, DG2YCB, Uwe wrote:
> During the current DXpeditions I‘ve observed repeatedly the following: 
> Signal strength dropped dramatically when number of slots was increased.

Have you studied the documentation for WSJT-X? This is inherent in 
multi-slot transmission.

73, Jim K9YC




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