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Subject:
From:
Steve Dresser <[log in to unmask]>
Reply To:
For blind ham radio operators <[log in to unmask]>
Date:
Sun, 20 Mar 2011 09:14:02 -0400
Content-Type:
text/plain
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text/plain (79 lines)
Yes, but to be a full member you need to  have a toggle switch for a PTT 
control.

Steve

----- Original Message ----- 
From: "colin McDonald" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Sunday, March 20, 2011 01:27
Subject: Re: Ht burning out?


> oh boy, if he ran an amp, and was long winded, he'd be prime material for
> 75M and the old buzzards club!
> 73
> Colin, V A6BKX
> ----- Original Message ----- 
> From: "Steve Dresser" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Saturday, March 19, 2011 8:35 PM
> Subject: Re: Ht burning out?
>
>
>> Darren,
>>
>> You'll have to evaluate your operating style to determine whether or not
>> you
>> need to be concerned.  If you tend to make "old buzzard" transmissions,
>> you'll either have to become less long-winded or get a mobile.  Another
>> alternative is to run your HT at low power into an amplifier.
>>
>> Steve
>>
>> ----- Original Message ----- 
>> From: "KK4AHX Darren Duff" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Saturday, March 19, 2011 21:03
>> Subject: Ht burning out?
>>
>>
>>> Hi.
>>> After reading the below paragraph in an online article I am worried 
>>> about
>>> burning out my ht. It's the only rig I have now. I want to get a mobile
>>> to
>>> use as a base station but it's not in the budget right now. I would like
>>> to
>>> know what other's think. here is the snip from the article.
>>>
>>> HAND HELD DUTY CYCLE LIMITS
>>>
>>> If you subject today's HTs to frequent full power, 5w transmissions of
>>> several minutes duration they overheat and the final power transistors
>>> may
>>> fail prematurely. Kenwood and Yaesu state in their service manuals that
>>> their HTs are rated for 20% duty cycle at their maximum RF output, or 30
>>> seconds of transmit to 2 minutes of standby. After I first got my
>>> license,
>>> I burned up three sets of "finals" in less than a year with long winded
>>> QSOs using a Radio Shack HTX-202 which produced 8w when powered at 13.8V
>>> from my auto cigarette lighter plug! When the warranty ran out, I
>>> replaced
>>> it with a Kenwood TH-22 and repeated the same result. Kenwood's Virginia
>>> Beach service center politely admonished me that I was "exceeding the
>>> recommended duty cycle" and should buy a mobile. I followed their advice
>>> and am satisfied with my two Kenwood mobiles, but I sought out other HTs
>>> and pass that advice along.
>>>
>>> Thanks, 73's.
>>>
>>> Darren Duff.
>>>
>>> amateur radio station KK4AHX.
>>>
>>>
>>>
>>
> 

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