OK, OK - so I made a little mistake - sounded like a good thing !
Thanks for correcting me - Now you can buy my slug and use it
correctly.
I am looking for a 1000H slug - 1000w. 2-30 Mhz - anyone out there
have one for sale? And no, I do not want to use it for reverse
power only.
Donald, K6RV
> Message: 2
> Date: Fri, 28 Dec 2007 12:03:48 -0600
> From: "Bob McGraw - K4TAX" <RMcGraw@Blomand.net>
> Subject: Re: [TenTec] Bird Model 43 Slug For Sale
> To: <geraldj@storm.weather.net>, "Discussion of Ten-Tec Equipment"
> <tentec@contesting.com>
> Message-ID: <001301c8497b$ffcb0780$c1b34ace@FAMILY>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> reply-type=original
>
> Jerry is absolute correct. If one wishes to measure reflected power then
> the slug to correctly use is the one that will also measure the forward
> power. Thus if forward power is 500 watts then that slug should be used to
> measure reflected power. Don't try to get "magnification" of reflected
> power by using a lower power slug. It's bad on the slugs.
>
> 73
> Bob, K4TAX
>
>
> ----- Original Message -----
> From: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
> To: <tentec@contesting.com>
> Sent: Friday, December 28, 2007 11:43 AM
> Subject: Re: [TenTec] Bird Model 43 Slug For Sale
>
>
>
>> On Thu, 2007-12-27 at 22:14 -0600, Donald L. Schliesser wrote:
>>
>>> I have a Bird 5D (Silver Label) 5W 200-500 MHz slug for Sale.
>>> Perfect for Reverse Power (SWR) Adjustments.
>>> No dings or scratches - comes in protective plastic case.
>>> $45 includes shipping and Insurance CONUS.
>>>
>>> Please reply direct. Donald, K6RV
>>>
>>>
>> Not necessarily perfect for reverse power adjustments. The directivity
>> of the element may mean the forward power is coupled to the diode, but
>> only 30 dB down if that much and that can confuse the reflected power
>> indication to get a cancellation only when the load isn't 50 ohms.
>> Beyond that the lack of perfect directivity can easily over drive the
>> element. And then the diode can go bad without even venting any smoke.
>>
>> 73, Jerry, K0CQ
>>
>> _______________________________________________
>>
>
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