de K9ZPY/6 - Re: [Wswss] Re: [Mw] Bird UHF elements on 2304 Mhz?

[Dale Rogers]

Dave, et al,

For what it's worth I have the following brand new Black-n-Gold Bird slugs 
in their little protective plastic cases that I'll probably never use 
so............

431-17 - 2300 - 2400 Mhz - 1 w
433-19 - 2300 - 2400 Mhz - 25 w
433-37 - 2300 - 2400 Mhz - 50 w

$180 for all three plus shipping which I guess would be $10- $15.

73,

Dale Rogers
k9zpy/6
415-377-2880



----- Original Message ----- 
From: "Dave Sublette" <k4to at arrl.net>
Cc: "Microwave Reflector" <microwave at echo.valinet.com>;
<wswss at mailman.qth.net>
Sent: Tuesday, July 29, 2008 12:24 PM
Subject: [Wswss] Re: [Mw] Bird UHF elements on 2304 Mhz?


>I have a Bird 25L slug that I use on 2304. It is marked "25W  1.7-2.2 kMhz"
>
> It is obviously old because it uses the kMhz designator. It is 25 watts
> full scale and works beautifully on 2304 Mhz.
>
> More than this slug, I use an HP 775 20 dB couple plus appropriate
> attenuators on the -20 dB port to an HP 836A and 8485A sensor.
>
> Recently I bought and built the DEMI ABPM kit. It is really cool. It
> measures power from 10 Mhz to 10 ghz. By using appropriate attenuators, I
> can haul it to the top of the tower and measure power there pretty
> accurately.
>
> 73,
>
> K4TO
>
> Dave Calvert wrote:
>> Hello to all,
>> Please, DO NOT use the "E" series for 2304!  Reason is, the more power
>> you run,
>> the more your 2304 signal will couple to these "E" series elements.  This
>> is the
>> whole reason way they have different elements for different Freq.'s.
>> There will
>> never be one element for all bands!
>> 73,  Dave - KB0PE
>> _______________________________
>> Date: Mon, 28 Jul 2008 19:56:20 +0100From: grant at ghengineering.co.ukTo:
>> N3IZN at aol.comCC: sbms at ham-radio.com; microwave at lists.valinet.com;
>> WSWSS at mailman.qth.netSubject: Re: [Mw] Bird UHF elements on 2304 Mhz?
>> Chris  The only way to be sure is to measure one.  So I did.  1.0W at
>> 2304MHz measured with an HP 8481H sensor showed about 0.35W on a  10E
>> element, reverse was very difficult to estimate - maybe 0.03 or or  0.04W
>> with a very good 18GHz load. And the '43s are usually not that  accurate
>> at much less than 50% FSD.  Obviously way out, however the 'E' series
>> elements would at least give  an indication of SWR, and could be used as
>> a tuning aid.  It's also worth stating that it's not a good idea to use a
>> low power  element (such as this 10E) with a QRO PA that is way above the
>> frequency  range of the element - i.e. don't try putting 50W at 2.3GHz
>> through a  '43 with a 10E - you run the risk of damaging the element.
>> regards  Grant G8UBN  N3IZN at aol.com wrote:Any one have an
> idea on how a bird UHF slug, 400 - 1000 Mhz will act on 2304  Mhz?  I was
> messing around with a spectrian 1900 mhz amp and found it puts out  power
> on 2304. Well it moves the meter on the bird. I'll bring home a spec an
> and see what it looks like. Power drops off around 1600 mhz:(  73Chris
> **************
>> _________________________________________________________________
>> Keep your kids safer online with Windows Live Family Safety.
>> http://www.windowslive.com/family_safety/overview.html?ocid=TXT_TAGLM_WL_family_safety_072008
>> _______________________________________________
>> Microwave mailing list
>> microwave at lists.valinet.com
>> http://www.valinet.com/mailman/listinfo/microwave
>>
> _______________________________________________
> Wswss mailing list
> Wswss at mailman.qth.net
> http://mailman.qth.net/mailman/listinfo/wswss
>