[RTTY] Key down & 50% power

[David VE3VID]

If the rig has an FSK mode setting and is rated at 100% duty cycle then it is good to run at full powercheck the manual info for RTTY op

http://www.ve3vid.webs.com/


> From: keepwalking188 at yahoo.com
> To: pcooper at guernsey.net; rtty at contesting.com
> Date: Wed, 24 Aug 2011 17:19:30 -0500
> Subject: Re: [RTTY] Key down & 50% power
> 
> Phil's comments about this recommendation being rig specific is right on the money.  That kind of general blanket statement is very 
> misleading, in the same way the PSK setting guidelines of no ALC = quality is really rig specific.
> 
> Yaesu's official recommendation (at least what they publish in the manuals) is to run at reduced power if the transmission lasts 
> "for more than a few minutes."  I never could understand that - but since I mostly contest or DX chase on RTTY, I don't send long 
> transmissions.  Never had a problem with the 2K or 5K.  Maybe I'm just living lucky?
> 
> 73, Jeff ACØC
> www.ac0c.com
> 
> -----Original Message----- 
> From: Phil Cooper
> Sent: Wednesday, August 24, 2011 2:22 PM
> To: rtty at contesting.com
> Subject: Re: [RTTY] Key down & 50% power
> 
> Hi all,
> 
> Gedking (at) aol.com wrote:
> Never run more than 50% power on RTTY It's like putting a Brick on your CW
> KEY
> 
> I guess that is a good general rule, but it does NOT apply to ALL radios!
> When I used an IC756 and then an IC756Pro, I ran them at 100 watts in almost
> all contests.
> They never got hot, and never faltered at all. I believe they were designed
> to run flat out on RTTY, so it was not a problem.
> That is not the case for many Yaesu rigs though, which do need to be run at
> half-power.
> 
> I now have an IC7800, and I run that at half-power, not because it can't
> handle the full 200 watts, but mainly because I don't need to run it flat
> out, but also because many contests have a low power section which is
> limited to 100 watts.
> 
> 73 all
> 
> Phil GU0SUP
> 
> 
> 
> 
> 
> 
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