Hi Peter,

Many thanks for your interest, the formula is Ok,
SWR measures the standing wave ratio between the Forward RF Power ( from the
radio to the antenna ) and the Reverse RF Power ( from the antenna to the
radio ) over a line feed between a transmitter and the antenna in a radio
station.
When the SWR -> to infinite ( F=R ) it means No ANTENNA is connected to the
radio when it is working.
This is a particular value for the formula and people who work with radios
must take care after switch on and operate the equipment.
There are allways looses in any transmission line as coax cables, in that
way the Reflected Power is present ( REF > 0 ), the thing is to tune the
antenna to the nearest value of SWR to 1. In other words the operator needs
to tune the antenna trying to get the lowest value of REF. ( REF -> 0 )

Regards,

Augusto

----- Original Message -----
From: "Peter L. Peres" <plp@ACTCOM.CO.IL>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Sunday, August 24, 2003 11:20 AM
Subject: [PIC:] Square root 16bit number


> There's something wrong with your formula. SWR should be 1 for R=F but
> your formula yields infinity for this case. Fix the formula first.
>
> Peter
>
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