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Stefan
Some of your emails are flagged UNSAFE ATTACHMENTS
or SPAM
de mal/g3kev
----- Original Message -----
Sent: Tuesday, June 01, 2010 10:49
AM
Subject: LF: vertical antenna calculation
tool
LF, VLF,
Once i have
created an Excel sheet for calculating my vertical kite antenna on 137 kHz.
Today i want to share it with you. It is in german language but usable for
everyone anyway i think. It calculates all important parameters of a vertical
antenna and shows the resonance curve.
I am NO expert in writing excel
sheets and it can surely be done much more impressive and pretty in Java or
so, but it just works and shows me what happens to the system, if i change one
parameter.
In the yellow fields above, you can type the given
parameters like TX power, antenna height, losses and so. In the lower fields,
the needed L for resonance, antenna efficiency, EMRP, ERP, Lambda, wire
voltage and so on is calculated. Additionally you can see the resonance curve
of the antenna...
If you want you can use or modify it, or throw it
away ;-)
73, Stefan/DK7FC
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