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If your not running anything more advanced than an SWR meter the length is irrelevant, irregardless of what Firestick says. If you are running something more advanced than an SWR meter then there is are lengths that can be used to reflect the proper impedance and reactance, however, 18 feet is not one of those lengths.

The problem with the calculations on the Firestick web site is they don't take into account two important factors. One of those is the velocity factor of the coax, which varies with different types of coax. Also, each frequency has its own set of lengths that work, and even neighboring channels need different lengths to be accurate. Yes they will be close, but their will be error factored in, and by the time you get half way through the band that error has added up fast.

All in all, be careful with the information that is on the Firestick web site, there is good information there, but there is just as much bad information, like that 18 foot length as a proper length...

The DB

<blockquote data-quote="The DB" data-source="post: 459508" data-attributes="member: 21346">If your not running anything more advanced than an SWR meter the length is irrelevant, irregardless of what Firestick says.&nbsp; If you are running something more advanced than an SWR meter then there is are lengths that can be used to reflect the proper impedance and reactance, however, 18 feet is not one of those lengths.The problem with the calculations on the Firestick web site is they don&#039;t take into account two important factors.&nbsp; One of those is the velocity factor of the coax, which varies with different types of coax.&nbsp; Also, each frequency has its own set of lengths that work, and even neighboring channels need different lengths to be accurate.&nbsp; Yes they will be close, but their will be error factored in, and by the time you get half way through the band that error has added up fast.All in all, be careful with the information that is on the Firestick web site, there is good information there, but there is just as much bad information, like that 18 foot length as a proper length...<a href="http://hittman.us" target="_blank">The DB</a></blockquote>

[QUOTE="The DB, post: 459508, member: 21346"] If your not running anything more advanced than an SWR meter the length is irrelevant, irregardless of what Firestick says. If you are running something more advanced than an SWR meter then there is are lengths that can be used to reflect the proper impedance and reactance, however, 18 feet is not one of those lengths. The problem with the calculations on the Firestick web site is they don't take into account two important factors. One of those is the velocity factor of the coax, which varies with different types of coax. Also, each frequency has its own set of lengths that work, and even neighboring channels need different lengths to be accurate. Yes they will be close, but their will be error factored in, and by the time you get half way through the band that error has added up fast. All in all, be careful with the information that is on the Firestick web site, there is good information there, but there is just as much bad information, like that 18 foot length as a proper length... [URL="http://hittman.us"][COLOR="Black"]The DB[/COLOR][/URL] [/QUOTE]

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