NARC Live! from Wednesdays - Now available on catchup

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Published: 01 April 2020

Last Updated: 01 June 2020

Wednesdays NARC Live! Club meetings are streamed live to both Facebook video and simultaneously to the BATC Live streamer. 

If you miss one you can watch it again on our Facebook page at  www.facebook.com/norfolkamateurradioclub 

We will be doing NARC Live! every Wednesday night at 7.30pm BUT we really need input and content from you! If you have a story to tell, a picture to share, a talk to give or are willing to let us into your shack (its really easy using almost any modern mobile phone or computer with a webcam) then please drop me a note -  This email address is being protected from spambots. You need JavaScript enabled to view it.

Stay safe

73, David G7URP & Tammy M0TC

New ICNIRP EMF assessment tool - online and desktop versions

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Published: 03 December 2021

Last Updated: 03 December 2021

The RSGB are pleased to launch their new version of the RSGB EMF calculator v11d which is now available in a new browser-based version as well as the spreadsheet version. You can find both versions on our website: www.rsgb.org/emf

The web browser version does not require you to have Excel or another spreadsheet on your computer. This update includes some minor additions and corrections to the data used for Pre-Assessed Equipment Configurations (PAECs) and there are lots of new features in the browser app version.

The app runs within your web browser, so no data leaves your machine unless you create a backup and share the file.

The web app also has these great new features:

1. It works better on phones, tablets and computers with the layout adapting to available screen space and supressing information not needed for the configuration set up
2. It has features to save and load configurations so you can keep them all inside the app
3. It comes preloaded with some typical configurations to get you started
4. The tooltips are a consistent size and very clear
5. Selecting the interactive info button makes them easier to use on tablets and phones
6. The figures defining the exclusion zones adapt and scale with their values making their meaning much clearer
7. You can quickly see the effect of changing parameters like power and antenna height on your compliance
8. The available antennas change with the band selected
9. For record keeping just click the ‘Save PDF’ button then copy the pdf, perhaps to a dedicated folder or memory stick. The PDF is effectively the record that you have conducted compliance checks

Many thanks to Oli, MM0YOS for his great work in writing the web app. We must also remember the continuing work of Ian GM3SEK, Peter G4DSE, John M0JAV and our friends in ARRL on the EMF team who derive the guidance.

Please give it a try and feedback any issues or antenna you have modelled which are not already on the system to This email address is being protected from spambots. You need JavaScript enabled to view it.