[Amps] AL-1200 and RTTY - JUST A SIMPLE ANSWER PLEASE!

[Carl]

Where on earth did you get that idea from? Or are you maybe confusing RTTY 
with the various digital modes?

Carl
KM1H


----- Original Message ----- 
From: "David Jordan" <wa3gin at comcast.net>
To: "Don Jones" <ko7i at comcast.net>; <Amps at contesting.com>; 
<barockteer at aol.com>; <km1h at jeremy.mv.com>
Sent: Wednesday, August 28, 2013 8:30 AM
Subject: Re: [Amps] AL-1200 and RTTY - JUST A SIMPLE ANSWER PLEASE!


> ... and doesn't running the legal limit in RTTY mode defeat the purpose of 
> the mode, which is that with RTTY you can work the world with as little as 
> 100 watts.  Relatively easy to do when compared to running the same power 
> on SSB.
>
> enjoy,
> dave
> wa3gin
> ----- Original Message ----- 
> From: "Don Jones" <ko7i at comcast.net>
> To: <Amps at contesting.com>; <barockteer at aol.com>; <km1h at jeremy.mv.com>
> Sent: Tuesday, August 27, 2013 11:33 PM
> Subject: Re: [Amps] AL-1200 and RTTY - JUST A SIMPLE ANSWER PLEASE!
>
>
>> Tony,
>>
>> This is a pretty simple to figure out once you get out of the linear 
>> units mentality and switch over to the darkside of Log Units.
>>
>> Traditionally +/- 1 "S" unit = +/- 6dB change in received signal 
>> strength.
>> At 1,500W a 6dB reduction in power = 375W.
>> A 6dB increase in power from 1,500W = 6,000W
>>
>> 1,000W is 1.8 dB down from 1,500W
>> 750W is 3.0 dB down from 1,500W
>>
>> Bottom line with a small reduction in output power the result on 
>> receiving side is minimal, but the reduction in wear and tear on your 
>> amplifier is significant.
>>
>> This is about as simple and straight forward as it can get. The advice 
>> that Carl KM1H has given you is spot on.
>>
>> Vy 73, Don KO7i
>>
>> Message: 2
>> Date: Tue, 27 Aug 2013 09:52:55 -0400
>> From: "Carl"<km1h at jeremy.mv.com>
>> To: "Tony Brock-Fisher"<barockteer at aol.com>, <Amps at contesting.com>
>> Subject: Re: [Amps] AL-1200 and RTTY - JUST A SIMPLE ANSWER PLEASE!
>> Message-ID: <A70361803BA54AC3A52CA33AF3486D2B at computer1>
>> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
>> reply-type=response
>>
>> You will be safe at 1000W if the blower is set to high speed (depending 
>> upon
>> the vintage of the amp), is clean, oiled as well as clean tube fins.
>>
>> With a well used tube keep it down at 750W.
>>
>> Carl
>> KM1H
>>
>>
>>
>> Message: 1
>> Date: Tue, 27 Aug 2013 08:48:04 -0400
>> From: Tony Brock-Fisher<barockteer at aol.com>
>> To:"Amps at contesting.com"  <Amps at contesting.com>
>> Subject: [Amps] AL-1200 and RTTY - JUST A SIMPLE ANSWER PLEASE!
>> Message-ID:<521CA004.8010306 at aol.com>
>> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>>
>> I want to know what is a reasonable power level for the AL-1200 in a
>> RTTY Contest.
>>
>> Yes, I know I can search the archives. I tried that and it's impossible
>> to sort through all the bull$#!^ posts.
>> I'm going to open my station up for a RTTY contester guest op. Make your
>> own reasonable assumtions about duty cycle.
>> Please give me just a number of watts output I should limit the amp to.
>> I'll take the low side average of all responses.
>>
>> Fire away please...
>>
>>
>> _______________________________________________
>> Amps mailing list
>> Amps at contesting.com
>> http://lists.contesting.com/mailman/listinfo/amps
>
>
>
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