123 lines
4 KiB
Markdown
123 lines
4 KiB
Markdown
---
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title: Winlink on a Surface 2 Go and a TX-500
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summary: >
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Mission: move all my hamradio stuff from the linux notebook to
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the Surface 2 Go (Windows 11).
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date: 2024-05-11T23:53:55+02:00
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# lastmod:
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categories:
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- amateur-radio
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tags:
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- winlink
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- digirig
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- mobilinkd
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- packet radio
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- vara fm
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- vara hf
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- draft_post
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# showBreadcrumbs: true
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# showDate: false
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# showReadingTime: false
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# showWordCount: false
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# showPagination: false
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# feed_exclude: true
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# site_exclude: true
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# some help
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#
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# highlighting with highlights
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#
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# use table, as inline creates a padding around
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# and it pushes the text more to the right side (end of screen)
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#
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# ~~~html {linenos=table,hl_lines="3-6"}
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# ~~~html {linenos=inline,hl_lines="1,3-6"}
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draft: true
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---
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First let us start with what I used until now for any Winlink session that
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I made (either at home or portable in the field/forest/mountain).
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## The old setup (on a linux box)
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I use a Lenovo X1 Carbon as my daily driver. It is quick enough and compact
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and I used it for a while now for hamradio stuff too. I never did FT8 or
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similar "messengers" on it though. In particular I did some winlink sessions
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using [Pat] in combination with [rigctld], [direwolf], the [AX.25 tools],
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[VARA] (HF and FM) and [ARDOPCF] (never got one connection from home).
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[Pat]: https://getpat.io/
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[rigctld]: https://hamlib.github.io/
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[direwolf]: https://github.com/wb2osz/direwolf
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[AX.25 tools]: https://packet-radio.net/ax-25/
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[VARA]: https://rosmodem.wordpress.com/
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[ARDOPCF]: https://github.com/Dinsmoor/ardopcf
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A more precise note on how I established different connection types is
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[already
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written down in the article before]({{< ref "64-packet-radio-vara-mobilinkd-and-digirig-on-linux" >}}
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"Packet radio, VARA (FM+HF), Mobilinkd, Digirig and the SignaLink USB on Linux").
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## Using Winlink Express on a Windows computer
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I plan to use the Surface 2 Go tablet for Winlink and related tasks.
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## ARDOP setup
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Following some screenshots showing my settings for ARDOP:
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Set the desired drive level within these settings. I usually have to set it to <kbd>87</kbd>-<kbd>88</kbd>.
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I use a Lab599 Discovery TX-500 (with Lab599 as the CAT option).
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I also use a Digirig and I can therefore use the COM port to trigger the PTT function.
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## VARA HF setup
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## What you have to look for
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### Time synchronisation
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Most digital modes rely on accurate time settings, so you may synchronise with a timeserver or use
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the GPS mouse.
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### RX signal
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In ARDOP try to get your receiving signal withing the green bar. 
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The top blue bar will then change to green aswell.
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In VARA HF make sure the left indicator is near the needle as in this screenshot. 
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You can achieve this with different methods.
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- Change the microphone level within Windows.
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I try to leave this setting to <kbd>80%</kbd> but I sometimes have to adjust it a bit.
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It is good at <kbd>80%</kbd> for VARA FM, but for ARDOP I often have to increase it to <kbd>100%</kbd>.
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- Change the REF level on your radio.
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On the TX-500 I usually maintain a REF level of <kbd>-19</kbd>.
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### TX signal
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You may need to look into your radios manual to get the optimum value of the signal.
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On the TX-500 I look at the DIG meter. Get the bar nearly full and you are good to go.
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(The ALC meter on the TX-500 does not move a bit on my setup)
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