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| To: | <rsgb_lf_group@blacksheep.org> |
|---|---|
| Subject: | LF: Re: miniwhip miniresults...? |
| From: | "PA0WFO" <pa0wfo@chello.nl> |
| Date: | Tue, 3 Oct 2006 15:15:26 +0200 |
| Delivered-to: | daveyxm@gmail.com |
| References: | <45220984.5050008@telus.net> <000f01c6e6e9$455bf260$0100a8c0@HOST> |
| Reply-to: | rsgb_lf_group@blacksheep.org |
| Sender: | owner-rsgb_lf_group@blacksheep.org |
|
To all
,
I,m using an active
antenna simular to Roelofs mini whip for over 10 years ( circuit
practically the same with DC coupling between the J310 and the 2N5109 ) with
very good results . I tried it in combination with a lot of different receivers
and came to the conclusion that any intermodulation was caused by overloading
the receiver and not by overloading the active antenna . Easy to check by using
an external or internal attenuator with steps of 10-20-30 dB between the
active antenna and the receiver .
However I do not
have any powerful transmitters in the neighbourhood .
73, William
PA0WFO
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