Trip,

I've been using ALE400 for quite a while and never really had too many 
problems with collisions in the past. Only recently since I am /QRP only 
have I noticed the problem. I would take this to mean that it really 
only manifests when signals are very weak.

The problem with slot-times or even timers in general is that Windows is 
not a particularly good time keeper and some system tasks will rob the 
cpu of cycles at critical moments. This is one of the reasons why Pactor 
ARQ wouldn't be successful on a sound card/Windows PC.

There's a fine balance between using time delays and maintaining overall 
throughput but I think the solution will probably need to be in the form 
of entering a waiting/listening state after a certain number of "no 
acknowledgments".

It will be interesting to read Patrick's comments on this.

73 Sholto
K7TMG


KT4WO wrote:
>  
> 
> ***********" Sync issues:
>  
> The mode can lose sync now and then when signals collide. We haven't 
> figured out a way around that other than dropping the link and 
> reconnecting.
>  
> Sholto and I thought that clearing the outgoing text would allow the 
> mode to sit idle long enough to reestablish synchronization, but it 
> seems the clear button does not actually clear what's in the outgoing 
> buffer. We'll have to ask Patrick about that. "*********** ******
>  
>  
> I have brought this up to Patrick a few times....I asked for a 
> "slottime" or some random timer...
> I think this would solve the problem. This is a MAJOR ISSUE with ALE400.
> Until this is fixed...ALE400 will never become "mainstream"
> I have been fighting this issuse sense ALE400 came out.
> So far...he has not worked on that..maybe you will have better luck getting
> him to address this.??!!??! !??
> Maybe now that someone other than me and Dave "sees" this is a problem, 
> Patrick
> will fix it???
>  
>  
> Trip - KT4WO
> Mostly on 80-30meters
> kt4w...@gmail. com <mailto:[email protected]>
>  
>  
> 

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