[PPRAANet] transmission line question

[Jason Taylor]

A few questions:

1) what are you measuring SWR with?
2) have you measured your SWR through your feed line with a dummy load on
the end?

Sent from my phone. I apologize for any brevity.

On Wed, Aug 4, 2021, 11:15 AM <james.f.gibson at gmail.com> wrote:

> Transmission line experts, I have a question.
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> After installing a MFJ-2389 antenna (currently used only for 2M operation)
> I
> temporarily connected a 120 ft RG8X cable between the rig and the short ( <
> 10 ft ) span of RG8U attached to the antenna.  The measured SWR was 1.48.
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> Then I removed the RG8X cable and attached the intended permanent cable
> which is 50 ft of MPD400 (LMR400 equivalent) to the RG8U.  Surprised to get
> a SWR of 2.8.
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> These are all 50 ohm coax cables.  Any idea why the MPD400 swap-in would
> give me an unacceptable SWR?
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>
> Jim KS4F
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