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Re: [Amps] Palstar DL5K 5KW load

To: n8de@thepoint.net
Subject: Re: [Amps] Palstar DL5K 5KW load
From: R.Measures <r@somis.org>
Date: Wed, 31 Aug 2005 09:36:26 -0700
List-post: <mailto:amps@contesting.com>
On Aug 31, 2005, at 8:27 AM, Don Havlicek wrote:

> Wow ... I am an Extra and have a 45 wpm certificate ... does that mean 
> I
> can run ... let me see.....  14.5 kw ???

You always could, Don - provided that you were careful not to cause 
interference.

> Don
> N8DE
>
> Theo Bellamy wrote:
>> Haven't you heard? 20 wpm Extras can now run 6kw. It is only fair 
>> since 5
>> wpm Extras can run 1.5 kw ....
>>
>>
>> Theo K4MO
>>
>> ;-)
>>
>>
>>
>>
>> -----Original Message-----
>> From: amps-bounces@contesting.com 
>> [mailto:amps-bounces@contesting.com]On
>> Behalf Of Don Havlicek
>> Sent: Wednesday, August 31, 2005 10:51 AM
>> To: PA3DUV
>> Cc: amps@contesting.com; Harold B Mandel
>> Subject: Re: [Amps] Palstar DL5K 5KW load
>>
>>
>> 6 Kw output?
>> Hmmmmmmm
>> Wish we had that opportunity in the USA, but who needs 6 db?
>> Don
>> N8DE
>>
>> PA3DUV wrote:
>>
>>> However, there are some minor flaws in the design of the DL5K.
>>>
>>> First the long silver plated wire from the UHF connector to the 
>>> resistors
>>
>> is
>>
>>> hanging on the solder joint of the UHF connector. The cheap rubber 
>>> grommet
>>> in the directional coupler box provides no support at all. I have 
>>> machined
>>
>> a
>>
>>> teflon support bushing to replace the grommet which supports this 
>>> long
>>
>> lead.
>>
>>> Also I have bolted the directional coupler box to the chassis in 
>>> order to
>>> remove strain from the broken solder connection to the UHF plug.
>>>
>>> The DL5K works just fine with the 6 kW output from my 2 x GU84 
>>> amplifier.
>>> The fan kicks in after approx. 20 seconds and a nice flow of hot air 
>>> heats
>>> my shack in the wintertime. Together with the air flow through the 
>>> GU 84
>>> plate coolers I do not need to fire up the wood burner in the shack.
>>>
>>> Cheers, Dick
>>> PA3DUV
>>>
>>>
>>> ----- Original Message -----
>>> From: "Harold B. Mandel" <ka1xo@juno.com>
>>> To: <amps@contesting.com>
>>> Sent: Thursday, August 18, 2005 12:21 AM
>>> Subject: [Amps] Palstar DL5K 5KW load
>>>
>>>
>>>
>>>
>>>> When opening up the Palstar DL5K dummy load
>>>> the owner can spot a ceramic capacitor at one end of
>>>> the two load resistors.
>>>>
>>>> As well, the input line goes through a metal box that serves as
>>>> the pickup for the relative wattmeter on the front panel.
>>>>
>>>> While never approaching the 5KW limit I have seen some
>>>> reflected energy from this device at the legal limit area and
>>>> wonder if any of you might have encountered this as well.
>>>>
>>>> I went so far as to swap coax jumpers, etc., to eliminate
>>>> cable glitches and the effect followed.
>>>>
>>>> Hal Mandel/W4HBM
>>>> _______________________________________________
>>>> Amps mailing list
>>>> Amps@contesting.com
>>>> http://lists.contesting.com/mailman/listinfo/amps
>>>
>>>
>>> _______________________________________________
>>> Amps mailing list
>>> Amps@contesting.com
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>>>
>>
>>
>>
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>
>
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>

Richard L. Measures, AG6K, 805.386.3734.  www.somis.org

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