Why not use a pelican case? In the states there's a cheaper version of them but the pelican is still not that expensive.

Vince - K8ZW.

--
Michigan VHF Corporation -- nobucks dot net

K8ZW -
Etsy Shop:

See the “HOA Ham” YouTube channel on this. He has an Amazon link. I bought one and it’s ideal for this task!

73,

Frank
K4FMH

still hoping for a resolution. ?thanks

On Tue, Jan 3, 2023 at 08:49 PM, Richard Lenker KB3YRC wrote:

I? use the box

?

?

Hello Group,

Anybody find a small case for the STICK 230

Many Thanks
--
Best 73 - Dave - G8LIY

?

Virus-free.

?

Thanks...

I have a small Case with my antenna related adapters/patch leads/ tools

I want a small case to protect whilst it's in that Case... "Protect my investment"
--
Best 73 - Dave - G8LIY

开云体育

Hello Group,

Anybody find a small case for the STICK 230

Many Thanks
--
Best 73 - Dave - G8LIY

On Thu, Dec 29, 2022 at 09:23 AM, TG9AJR Juan wrote:

Hello and newbie question, I have a Stick 230:

Can I take just a measurement of a run of coax without the antenna on the other end in order to determine if the coax is good ?

Besides checking the SWR on the antenna, is there a proper way to check the coax as well as jumper coax using the Stick 230 ?

There are three things you can do to quickly check a cable.

1. Perform an SWR test with a 50 ohm dummy load at the other end of the cable. Should be close to 1.0
2. Leave the far end of the cable open and measure the Return Loss at the frequency of interest.? Write down this number (in dB).? Short the far end of the cable and repeat the Return Loss measurement.? Add RL(open) and RL(short) together and divide the result by 4.? This will give you the attenuation of the cable in dB
3. Perform a Time Domain Reflectometer (TDR) measurement using the program AntScope 2.? This will give the length of the cable and any impedance discontinuity (splices, shorts, open cable etc.)? You need to set the velocity factor of the cable you are using in the settings menu of the program. ?

Roger

OK thanks, and then which of the Stick 230 test I have run on the coax/dummy load ?

Hello and newbie question, I have a Stick 230:

Can I take just a measurement of a run of coax without the antenna on the other end in order to determine if the coax is good ?

Besides checking the SWR on the antenna, is there a proper way to check the coax as well as jumper coax using the Stick 230 ?

Thank you.

HNY
73

Juan
TG9AJR

Yes, I’ve already seen this…I can certainly depve into the (open) source code for Antscope 2.

Frank

---
Frank M. Howell, PhD
Ridgeland, MS
frankmhowell (at) hotmail.com
---

On Wed, Dec 28, 2022 at 10:13 AM, K4FMH wrote:

Hi Roger,

Have you found an online source for RigExpert’s documentation of how they explicitly compute these parameters in their analyzers? I’ve been searching for that documentation.

I don't think there is such a document available from RigExpert.? Most of their Analyzers are one port Vector network analyzers that use a bridge and a down convertor like the AA-55 Zoom drawing below.? The digitized analog signals are are used to calculate the S11 reflection coefficient.? From their R, X, VSWR are all pretty standard computations as detailed in the document I posted early.? The tools like cable stub, impedance etc. is where they have their own versions developed from VNA theory.? The AntScope 2 software is available as Open Source so if you dig into the code you might find how some of their algorithms work.?





Roger

Hi Roger,

Have you found an online source for RigExpert’s documentation of how they explicitly compute these parameters in their analyzers?I’ve been searching for that documentation.

HNY,

Frank
K4FMH

---
Frank M. Howell, PhD
Ridgeland, MS
frankmhowell (at) hotmail.com
---

On Wed, Dec 28, 2022 at 09:31 AM, Bob Martin wrote:

I'd like to find SWR given F, R and X outputs from my AA-600. Can somebody give me an equation or online resource? Thanks!

First you have to compute the complex reflection coefficient Gamma in the form a +/-jb

Gamma = (Zl-Zo)/(Zl+Zo)? where Zo is 50+j0? and Zl = R +/- jX

Then you convert gamma from the? rectangular a +/- jb? form to? P@angle polar form.

Then VSWR = (1+P)/(1-P)

It is all described in the attached document with an example...


Roger

I'd like to find SWR given F, R and X outputs from my AA-600. Can somebody give me an equation or online resource? Thanks!

Hi Alex
I have the same problem that results in my device freezing and the only way I can reset it is to remove the battery or the usb cable. I’m running the latest software and the latest version of Antscope, but I still have the issue.?

what do you recommend?

kind regards?
Will, M0LGW?

Hi, maybe this will help, hopefully.

73!

The only documentation on Antscope I have is from a .pdf manual dated 2019-03-20
It appears to be from my AA-230 Zoom but the software does not really care about which RigExpert you are using.
I have used Antscope with an AA-600, AA-230zoom bt and my current AA-2000
hope this helps and if you do find an more current manual please let us all know.
THanks 73 Art W1SWL