[RTTY] AL-1200 arcing during QRO RTTY contesting

[Joe Subich, K4IK]

2500 Watts PEP two tone is about 600 Watts DC (6dB peak to average 
for a two tone signal) ... RTTY is a single tone mode.  1000 watts 
RTTY at 50% duty cycle is putting a real hurt to that amplifier ... 

Your reduction to 500 Watts is more in keeping with the 2500 Watt 
specification of that amplifier, particularly for contesting! 

73, 

   ... Joe, K4IK 


> -----Original Message-----
> From: rtty-admin@contesting.com [mailto:rtty-admin@contesting.com]On
> Behalf Of WA9ALS - John
> Sent: Thursday, October 04, 2001 8:46 PM
> To: Jerry Flanders
> Cc: RTTY@contesting.com
> Subject: Re: [RTTY] AL-1200 arcing during QRO RTTY contesting
> 
> 
> > The AL-1200 is a pretty rugged amp. Quoting from Ameritron's 
> > literature on it:"it can deliver power of more than 2500 watts 
> > PEP two tone output for a half hour!". You were running it at 
> > only 40% of this at probably less than a 50% duty cycle - 
> > almost QRP for this amp. You may have to look elsewhere
> > to find this problem.
> 
> Well, I'm certain I could've fried an egg on the top of it - I 
> hate to think what it would be like at 2500 watts!  ;-)
> 
> 
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