22 lines
1.1 KiB
Plaintext
22 lines
1.1 KiB
Plaintext
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R:880802/0618c 9178@WB0OIZ [INDEPENDENCE, MO - 64050]
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From: WB0OIZ@WB0OIZ
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This is how to match the popular 75 ohm CATV hardline to a 50 ohm antenna:
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| Overall Length 0.1628 (wavelength) |
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|<------------------------------------------------>|
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| 75 ohm coax 50 ohm coax |
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| e.g. RG11/U e.g. RG213/U |
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50 ohm----|{{{{{{{{{{{{{{{{{{{{{{----}}}}}}}}}}}}}}}}}}}}}}}}|----- 75 ohm
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antenna---|{{{{{{{{{{{{{{{{{{{{{{----}}}}}}}}}}}}}}}}}}}}}}}}|----- xmission
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| | | | | line
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|<-.0814 wavelength->| | |<--.0814 wavelength-->|
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Join using suitable
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connector
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WB0OIZ
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RELAYED BY...N0KGX...GENE
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