In the interests of purity this is not quite correct. --On Sunday, August 24, 2003 8:36 AM -0500 CVT-SSS wrote: > 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. Well sort of, w used to use a VERY long cable as a perfect antenna. The cable is lossy so after a very long run the cvable is the perfect 50Lhm load. The higher the frequency the shorter the run has to be :-) jon > 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" > To: > 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 >> >> -- >> http://www.piclist.com hint: To leave the PICList >> mailto:piclist-unsubscribe-request@mitvma.mit.edu >> > > -- > http://www.piclist.com hint: To leave the PICList > mailto:piclist-unsubscribe-request@mitvma.mit.edu -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads