[CQ-Contest] FT4 - Robotic Contesting

cosson-dimitri cosson-dimitri at bbox.fr
Thu May 2 08:20:06 EDT 2019

Good summary, fully agree.
73 de Dimitri F4DSK 

Envoyé depuis mon smartphone Samsung Galaxy.-------- Message d'origine --------De : Jeff Blaine <KeepWalking188 at ac0c.com> Date : 02/05/2019  06:17  (GMT+01:00) À : cq-contest at contesting.com Objet : Re: [CQ-Contest] FT4 - Robotic Contesting 
The fundamental reason for FTx needing it's own contest format is that 
it's a fixed rate which is set by software.  The exchanges are 
essentially synchronous and slaved to a common clock.  So if ops can 
keep the pipeline full, there is no differentiator among "run" speeds.  
All of the current RTTY contests have rate as a fundamental factor so 
using that format in a FTx contest makes no sense.  Additionally, as the 
rate is machine limited for the most part, if the FTx contest is going 
to have staying power it's got to offer some other challenge which op 
skill development can address.  High rates in RTTY depend on operator 
execution among a sea of variables - in FTx that element is essentially 

A format that rewards for distance seems a better fit - perhaps the Stew 
Perry format where points scale with distance and the exchange is grid 
square.  A contest built around something like that where the score is 
most influenced first by distance and then other factors a weak second 
would match well with the strength of these modes.


On 5/1/19 8:25 PM, john at kk9a.com wrote:
> I agree, please keep FT? contests separate from RTTY. Unlike FT?, RTTY
> decoders are not perfect. To do well a RTTY operator needs to quickly look
> at multiple decoders to determine what the callsign and report most likely
> are. There is nothing automatic and there are no set TX/RX times so every
> operator can be as efficient as they choose. It is easy to send a quick
> hello to your friends during the QSO, just like on CW and SSB.
> John KK9A
> Jeff Blaine AC0C wrote:
> The FT8/4 modes need to have contests specifically built around the
> capabilities and limitations of the mode.
> Mixing FTx into the RTTY contests falls squarely into a category of
> things that we SHOULD NOT DO, even though we have the capability to do.
> 73/jeff/ac0c
> alpha-charlie-zero-charlie
> www.ac0c.com
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