GMRS Radio Question?

[jav_eee]

I would be suspicious of a SWR reading that low. Might indicate bad coax.

A lossy coax will make SWR look good. UHF needs really good coax. Thats harder to do in a mobile installation.

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[Nokones]

A lossy coax will make SWR look good. UHF needs really good coax. Thats harder to do in a mobile installation.

That is impossible.

 

[jav_eee]

That is impossible.

what is impossible?

 

[Mark75H]

Um, no, not really.

For example, at 462.575 MHz, an open circuit 9-foot RG-58/U Low Loss cable will show a VSWR at 9.84:1 and the same cable that is short circuited will show a VSWR of 6.37:1. And 18 feet of the same cable will an open circuit cable with a VSWR of 4.5:1 and a short, circuited cable will show a VSWR of 4.62:1. It just takes one of those little itty bitty braided wire strands to short out a cable.

A low VSWR reading will indicate virtually very low reflected power and a near perfect antenna system match with the radio for the power being transmitted to the antenna.

What about coax that has broken strands and now has 150 ohm resistance?

 

[Nokones]

what is impossible?

What about coax that has broken strands and now has 150 ohm resistance?

I would say you're a half of a load short of a full load for using that cable in place of a flat TV lead for watching analog TV channels.

I would think that anyone who possess a General Ticket would know that, but I guess you must have a good memory in memorizing the test answers.

You're not a Sad Ham, are you?

 

[Mark75H]

I would say you're a half of a load short of a full load for using that cable in place of a flat TV lead for watching analog TV channels.

I would think that anyone who possess a General Ticket would know that, but I guess you must have a good memory in memorizing the test answers.

You're not a Sad Ham, are you?

I do not understand your answer. Maybe you didn't understand the question.

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