Date   

Re: Adding an external AFEDRI-Net

jdow
 

Um, that's only if you have notepad set for word wrap and it still looks like well ripened XML poo. It's a "feature" not a bug, though. It's more or less how XML is defined. Since white space is semi-meaningless in XML I simply put in a whole bunch of new lines. Note also that the protagonist in this story is using Notepad++ not Notepad.

I cheat - I use the Visual Studio editor.

{^_-}

On 20220112 06:05:26, Simon Brown wrote:

Which version are you using? With V3.1 it should look good ‘as-is’ in notepad.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of sm6fhz
Sent: 12 January 2022 11:11
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] Adding an external AFEDRI-Net

 

Hi Frank and Ken.
Thanks for the hint.
I have installed it, but still all the lines are not separated.
If I look in a Web-browser the lines are nicely indented and each statement in it's own row.





Maybe there is a way to get a better structured view in NotePad++? But how to?

73 / Ingolf, SM6FHZ


--
- + - + -
Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.


Re: small setting help needed

jdow
 

(Aridly) You generated a definition for your front end, right? You get to the page I speak of precisely the same way because it is the same page.

{o.o}

On 20220112 05:03:08, Andy - DL1DXX wrote:

Hi all
thanks for replying. Entering a fixed offsett (External Radio ->  +- button) did not work.


"To test this he can go into "Select Radio" and select definitions lower right. That brings up the Radio Definitions dialog"

Select Radio in the toolbar found - but where to select the defintions lower right? Screenshot please?
By the way, upgrade to the latest Version.

Thank you, 73, Andy



Re: 137MHz "V" Antenna advice needed ...

John Elliott
 

For the last 10 years or so I've been using a QFH - quadrifilar helix . with a preamp and as long as the Sats are 2deg above the horizon , then excellent signals. In fact I use this antenna with airspy SDR for all VHF signal reception 
--
John - VK3CVF


Re: Adding an external AFEDRI-Net

Curt Faulk
 

Ingolf:

Yes, it does for me too. 

But then I can at least see the various fields in (what for me) is a more orderly way of viewing them and knowing which radio definition line I'm on.


Re: Adding an external AFEDRI-Net

Dennis Matzen
 

Looks like some option in Notepad++ is set to not recognize the <> line separators. Here is what the file looks like on my system when viewed in notepad++


--
Dennis
KA6FUB


Re: Adding an external AFEDRI-Net

sm6fhz
 

Hi Curt.
Unchecking "Word wrap" results in one loooong line of statements for me with the SDRC Radio Definitions file.
I am using NotePad++ v8.2 64 bit.
/ Ingolf


Re: Adding an external AFEDRI-Net

Curt Faulk
 

Ingolf:

At least for me, when viewing these files in Notepad++, 'Word wrap' must be turned OFF.

Menu Bar>View>Word wrap = unchecked.

This produces the desired result.


Re: 137MHz "V" Antenna advice needed ...

Richard Fairman
 


Re: Adding an external AFEDRI-Net

Simon Brown
 

OK,

 

Some browsers don’t honour the line breaks and other formatting, they don’t have to. Use a real XML editor such as XML Notepad.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of sm6fhz
Sent: 12 January 2022 17:40
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] Adding an external AFEDRI-Net

 

Yes, that one is what I would expect. That is when I look at the .XML-file in Chrome Web-browser.
It is the other one (the first, above the god one) that is from NotePad++, that does not split the statements in a nice way for reading the code.
It is only of curiosity from my side, if NotePad++ (that is meant to edit code) can be set up for doing that in a nice way.
Of academic interest :-) I have already edited the XML-file as you suggested :-)
73 / Ingolf


--
- + - + -
Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.


Re: Adding an external AFEDRI-Net

sm6fhz
 

Yes, that one is what I would expect. That is when I look at the .XML-file in Chrome Web-browser.
It is the other one (the first, above the god one) that is from NotePad++, that does not split the statements in a nice way for reading the code.
It is only of curiosity from my side, if NotePad++ (that is meant to edit code) can be set up for doing that in a nice way.
Of academic interest :-) I have already edited the XML-file as you suggested :-)
73 / Ingolf


Re: 137MHz "V" Antenna advice needed ...

Chris
 

I’m trying to get my head around how a ground plane would help low angle and reduce nulls.
Theoretically, it should have the opposite effect.
That is a really strange design but if it’s working for you who cares :)

My experience with the V dipoles is that they aren’t immune to polarization shifts. It’s quite possible that you weren’t seeing nulls in the pattern as much as nulls due to polarization changes as the bird rotates in relation to the fixed ground station.
Adding the strange reflector may be providing a fluke bounce back to the V that helps with the nulls.
At these frequencies, the height of the antenna above ground (as long as it’s more than a few wavelengths) should have negligible affect on signal strength as long as the antenna has line of sight to the transmitter.

Did you end up connecting the reflector to the coax shield?
Is it grounded in any other way (clamped to the support)?

The 137MHz noaa is quite powerful and it’s easy to overthink the antenna. I’ve had excellent results from almost anything I’ve used. From a 250’ piece of electric fence (no balun or anything to restrict bandwidth) 5’ off the ground to my 144/440 commercial ham radio antenna.

In my experience, there have only been two factors affecting reception of 137MHz birds.
1) polarization shifts causing sharp nulls during the pass
2) Line of sight being blocked by trees, buildings, other antennas, etc.

The QFH is known to be the best compromise, simply because it’s relatively immune to polarization changes and is still also pretty omnidirectional.

You do NOT really want an antenna with gain in the vertical direction. That’s when the bird is closest so it’s just wasted.

Gain comes from somewhere… it’s not magic.
if you have gain in any given direction it’s at the expense of gain in another direction. Take a balloon and squeeze it into a donut. You’ve just made a vertical dipole. Now push in one side (you will need three hands) you’ve just made a yagi, assuming you didn’t pop the balloon.

My first weather sat receiver was a modified broadcast FM tuner, an oscilloscope for a display with a Polaroid camera to capture the image and a reel to reel tape recorder to keep repeating the pass till I got the scope tweaked for any kind of image. I did use a multi element yagi on that as it was quite deaf so I spent much time on the roof manually tracking the bird.
I’m sure there are school safety regulations now that wouldn’t let it happen! Sure wish I had some of those recordings or Polaroids now!

Have fun, experiment and whether it works or not, try to figure out why.
Christopher


Re: Adding an external AFEDRI-Net

Simon Brown
 

Hi,

 

You image below is not bad.

 

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of sm6fhz
Sent: 12 January 2022 14:15
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] Adding an external AFEDRI-Net

 

Hi Simon.

SDRC 3.1 build 2440 of December 1st, 2021.



73 / Ingolf


--
- + - + -
Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.


Re: Adding an external AFEDRI-Net

sm6fhz
 

Hi Simon.

SDRC 3.1 build 2440 of December 1st, 2021.



73 / Ingolf


Re: Adding an external AFEDRI-Net

Simon Brown
 

Which version are you using? With V3.1 it should look good ‘as-is’ in notepad.

 

Simon Brown, G4ELI

https://www.sdr-radio.com

 

From: main@SDR-Radio.groups.io <main@SDR-Radio.groups.io> On Behalf Of sm6fhz
Sent: 12 January 2022 11:11
To: main@SDR-Radio.groups.io
Subject: Re: [SDR-Radio] Adding an external AFEDRI-Net

 

Hi Frank and Ken.
Thanks for the hint.
I have installed it, but still all the lines are not separated.
If I look in a Web-browser the lines are nicely indented and each statement in it's own row.





Maybe there is a way to get a better structured view in NotePad++? But how to?

73 / Ingolf, SM6FHZ


--
- + - + -
Please use https://forum.sdr-radio.com:4499/ when posting questions or problems.


Re: small setting help needed

Andy - DL1DXX
 

Hi Kriss, Jdow, Simon

thanks a lot - solved !

73, Andy


Re: small setting help needed

Kriss Kliegle KA1GJU
 

See attached!

73 Kriss KA1GJU


Re: 137MHz "V" Antenna advice needed ...

D R
 

Thanks for the follow up feedback, Dave: it's nice to see that a bit of experimentation can bring good results!  Thirty years ago I was doing wxsat imaging with a turnstile antenna fitted with an eight leg reflector, and using a five element Yagi on a rotator to get full H to H reception (even over the horizon when atmospheric conditions were right), but time moved on and changes in computer technology rendered my hardware obsolete, and my antennas were taken down a long time ago.  However, in these days of SDR radios and SDRC, satellite reception is not the black art that it once was, and I think I really ought to give it another go.  I still have the reflector - made from eight lengths of aluminium tube soldered to a piece of copper clad pcb - so the V-dipole would be an easy way back in to start reception again.  I'll see what I can rustle up in the Spring :).

Regards,
Dave


Re: small setting help needed

Andy - DL1DXX
 

Hi all
thanks for replying. Entering a fixed offsett (External Radio ->  +- button) did not work.


"To test this he can go into "Select Radio" and select definitions lower right. That brings up the Radio Definitions dialog"

Select Radio in the toolbar found - but where to select the defintions lower right? Screenshot please?
By the way, upgrade to the latest Version.

Thank you, 73, Andy


Pluto F/W version

Mike N1JEZ
 

What firmware version is recommended for the Pluto? 0.34??

--
73,
Mike, N1JEZ
"A closed mouth gathers no feet"


Server Using Question

rmrrgs <rgsrose@...>
 

Hi,

Trying to get up to speed using Servers.
Pretty much doped out, but have the following questions, please:

a. when pulling up the (very) big list from sdrspace.com, how do I get the list to stop automatically updating and scrolling
    so that it is possible to look at all the listings without it continually updating ?

The updating is fine, but every time it does it, very often, it goes back to the start of the list.
Can't find a way to freeze the scrolling and calmly inspect the complete list.
How ?

b. Is there perhaps a map to pull up that shows the present on air Servers, and is "clickable" to select one ?

Thanks,
B.

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