[Wswss] Re: [Mw] Bird UHF elements on 2304 Mhz?

[Dave Sublette]

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     **************
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