CCIR493 Selcall - 2026

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====== CCIR493 Selcall - 2026  ======

I am tempted to revisit my previous experiments with CCIR493 selcall. There's a page giving details and info of what I've already done with HF Selcall [[ccir493_selcall| here ]]

Today (June 6<sup>th</sup> 2026) I saw a Mastodon post from Peter OE1LFB  [[https://mastodon.radio/@oe1lfb]] showing a new Codan Envoy, and an idea sparked that perhaps there were other
active Selcall users around. I sent a Mastodon post offering to try CCIR493 selcall but Peter informed me that the Codan was "..being used with the Austrian Red Cross, for emcom."

But the idea took root anyway and I dug out both my [[https://www.jenal.com/page20.htm | Jenal SC2 ]] microphones.

I initially connected one to my Xeigu G90, via its rear panel "data" connector and this seemed to work well. To properly test I wired the second SC2 to a mic plug for my Icom IC-7200.

I now have two separate HF Selcall transceivers. I put them both into dummy loads and tried various selcalls, beacon and beacon-99 calls between them. All working correctly.

{{:public:radio:topics:img_20260606_122506.jpg?direct&400|}}

In the past I've done selcall tests with a couple of stations - GM4WMM and F6EMT. I need to think about what to do this year as a mini-project.


==== Peer Tube Video ====

I've put a rambling video on Peer Tube : [[https://makertube.net/w/kPHwY1jNVMrH4fxvzHKhuN]]

===== Next =====


When not otherwise being used I'll try to leave the IC-7200 monitoring __one__ of these frequencies (all USB) with Selcall ID **3657**

  * 60m : 5371.5kHz
  * 40m : 
  * 30m : 
  * 20m : 14343.0kHz
  * 17m : 18163.0kHz
  * 15m : 21427.0kHz
  * 12m : 24977.0kHz
  * 10m : 28305.0kHz

I plan to take the G90 and its selcall mic to various portable locations and test the path back to my home station using selcall beacons. 

If anybody has the ability to use Barrett/Codan/CCIR493 selcall on HF and would like to try some tests and perhaps set up a net or sked please let me know! My email address is on the home page of this wiki, and is on my [[https://www.qrz.com/db/G4SLV | G4SLV @ QRZ.com]] page.

I have also been thinking about an "Engineer Order Wire" back-channel using Allstar for co-ordination and discussion of HF tests. I'll write a new Allstar wiki page about my new Allstar setup
but in the meantime - I'm at Allstar node **481483**. I don't monitor 24/7, but try to keep an ear on it while I'm near the shack.

 

===== Further Information =====


Page created  : 06/06/26 21:40 BST

Page updated : ~~LASTMOD~~

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