Re: Quarter-wave whip earth plane

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Sujet : Re: Quarter-wave whip earth plane
De : tauno.voipio (at) *nospam* notused.fi.invalid (Tauno Voipio)
Groupes : sci.electronics.design
Date : 15. Mar 2025, 19:09:32
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <vr4fos$ij7$1@dont-email.me>
References : 1 2 3 4 5 6 7
User-Agent : Mozilla Thunderbird
On 15.3.2025 11.23, Liz Tuddenham wrote:
  I need to do a crash
course in interpreting Smith Charts.
The NanoVNA will show the reflection attenuation or VSWR
if you're intimidated by the Smith chart.
The Smith chart shows the both the amplitude and the phase
of the measured reflection. The coordinates are the resistive
and reactive components of the reflection scaled to the system
reference impedance (here: 50 ohms). The coordinate lines are
circles for easy handling of the reflection. Traces of constant
SWR are circles centered on the 50 ohm center point.
The VNA has very small coaxial connectors (SMA), so you'll
need adapters to more conventional feed line connectors.
I prefer adapters with a piece of cable between the connectors,
to protect the small connectors from mechanical stresses.
--
-TV (oh2ug)

Date Sujet#  Auteur
10 Mar 25 * Quarter-wave whip earth plane27Liz Tuddenham
10 Mar 25 +* Re: Quarter-wave whip earth plane10Joerg
10 Mar 25 i`* Re: Quarter-wave whip earth plane9Liz Tuddenham
10 Mar 25 i +- Re: Quarter-wave whip earth plane1Ralph Mowery
10 Mar 25 i `* Re: Quarter-wave whip earth plane7Joerg
11 Mar 25 i  `* Re: Quarter-wave whip earth plane6Liz Tuddenham
11 Mar 25 i   +- Re: Quarter-wave whip earth plane1Joerg
15 Mar 25 i   `* Re: Quarter-wave whip earth plane4Liz Tuddenham
15 Mar 25 i    +- Re: Quarter-wave whip earth plane1Jeroen Belleman
15 Mar 25 i    `* Re: Quarter-wave whip earth plane2Tauno Voipio
15 Mar 25 i     `- Re: Quarter-wave whip earth plane1Liz Tuddenham
10 Mar 25 +* Re: Quarter-wave whip earth plane6legg
10 Mar 25 i+* Re: Quarter-wave whip earth plane3Joerg
11 Mar 25 ii`* Re: Quarter-wave whip earth plane2Liz Tuddenham
11 Mar 25 ii `- Re: Quarter-wave whip earth plane1Joerg
11 Mar 25 i`* Re: Quarter-wave whip earth plane2Liz Tuddenham
11 Mar 25 i `- Re: Quarter-wave whip earth plane1legg
11 Mar 25 +* Re: Quarter-wave whip earth plane9Joerg
11 Mar 25 i+* Re: Quarter-wave whip earth plane6Phil Hobbs
11 Mar 25 ii+* Re: Quarter-wave whip earth plane3Joerg
11 Mar 25 iii`* Re: Quarter-wave whip earth plane2Phil Hobbs
11 Mar 25 iii `- Re: Quarter-wave whip earth plane1Joerg
11 Mar 25 ii`* Re: Quarter-wave whip earth plane2john larkin
11 Mar 25 ii `- Re: Quarter-wave whip earth plane1Phil Hobbs
11 Mar 25 i+- Re: Quarter-wave whip earth plane1Liz Tuddenham
13 Mar 25 i`- Re: Quarter-wave whip earth plane1Liz Tuddenham
15 Mar 25 `- Re: Quarter-wave whip earth plane1Liz Tuddenham

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