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TruckersReport.com Trucking Forum | #1 CDL Truck Driver Message Board
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A antenna issue that has me stumped
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<p>[QUOTE="Night Stalker10, post: 12101942, member: 200038"]Craig, I found this info on return loss. I believe this makes more sense to us non-engineer folks, versus the technical info I posted earlier.</p><p><br /></p><p>"The RL value is not cable loss. It stands for "Return Loss", a term well-known to RF engineers. Think of it as the inverse of SWR, and just an alternative expression to what the SWR is. It has very little to do with cable loss. For example, 9 dB RL is about a 2:1 SWR. They are equivalent. You want a higher Return Loss number for a better SWR, not lower. A 40 dB return loss is a near perfect 1:1 SWR. This high Return Loss number means that the antenna is absorbing and using all of the power you send to it. A low value of Return Loss means that very little of your power is being used by the antenna, and is being reflected (Returned) back to your transmitter."[/QUOTE]</p><p><br /></p>
[QUOTE="Night Stalker10, post: 12101942, member: 200038"]Craig, I found this info on return loss. I believe this makes more sense to us non-engineer folks, versus the technical info I posted earlier. "The RL value is not cable loss. It stands for "Return Loss", a term well-known to RF engineers. Think of it as the inverse of SWR, and just an alternative expression to what the SWR is. It has very little to do with cable loss. For example, 9 dB RL is about a 2:1 SWR. They are equivalent. You want a higher Return Loss number for a better SWR, not lower. A 40 dB return loss is a near perfect 1:1 SWR. This high Return Loss number means that the antenna is absorbing and using all of the power you send to it. A low value of Return Loss means that very little of your power is being used by the antenna, and is being reflected (Returned) back to your transmitter."[/QUOTE]
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TruckersReport.com Trucking Forum | #1 CDL Truck Driver Message Board
Forums
>
Truckers' Trucking Tools
>
CB Radio Forum
>
A antenna issue that has me stumped
>
Reply to Thread