Topband: Good Conditions, Little Activity

[Jim Brown]

Very nice, Eric! I missed that while being evac'd for the fires. Just 
moved back in after 8 weeks. Would the results be comparable on 160M?

73, Jim K9YC

On 10/9/2020 4:45 PM, Eric NO3M wrote:
> The new FST4 mode has almost completely superseded JT9 on 630 and 2200m, 
> the only remaining JT9 signals being from those that missed the 
> announcement / release or are waiting on a general availability 
> release.  The advantages over JT9 are numerous, including use of 'a 
> priori' (as used with FT8, etc.), and a user adjustable noise blanker 
> that many have found indispensable on LF/MF.  While part of the beta 
> test group, we did a fair amount of testing on 160m as well.
> 
> Joe posted this graph comparing JT9 vs. FST4 performance:
> 
> https://physics.princeton.edu/pulsar/k1jt/jt9_vs_fst4.pdf
> 
> 
> - Eric NO3M
> 
> 
> On 10/9/20 5:44 PM, Jim Brown wrote:
>> I'd love to see Topbanders using JT9, which provides another 4 dB of 
>> noise rejection. JT9 dominates on 630M for that reason.
>>
> 
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