The range equation composed of the following.
0) Range
1) Tx output conducted power
2) Rx input conducted power
3) Tx antenna gain
4) Rx antenna gain
5) operating frequency
Tx power is much easier to appreciate for significance
regarding range perception. However, Rx sensitivity
is another parameter critical in long range RF link. Not
all Rx design for Vario and the like kind of application
have equal sensitivity or any close to same found in
communication equipment. So a Rx has 10X more
sensitive can make up for 10X lower power from its
corresponding Tx.
YK
----- Original Message -----
From: Jimmy D. Andrews <[EMAIL PROTECTED]>
To: Howard Rudy <[EMAIL PROTECTED]>
Cc: RCSE <[EMAIL PROTECTED]>
Sent: Sunday, January 07, 2001 9:05 PM
Subject: Re: [RCSE] Altimeters
> Howard Rudy wrote:
> > ... The Vario is low power (~100mw), but this is enough
to Tx 10-15mi line of sight.
>
> Hi Howard,
>
> The rated output of my Skymelody is 10mw, and it appears
that my Telario
> has about the same power output.
>
> Respectfully,
> Jimmy Andrews
>
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