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
> http://lists.contesting.com/mailman/listinfo/amps
>
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|