URL Links. 

Websites that you may want to visit.

Headlands International Dark Sky Park!
https://www.midarkskypark.org/

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Amateur Extra Class Manual.
Is it time for you to upgrade to Amateur Extra?
https://home.arrl.org/action/Store/Product-Details/productId/2016746457

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Amateur Radio license renewals.
https://www.w5yi.org/

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Build your own Amateur Radio Website.
https://admin.qsl.net/index.php

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QTH - Ham Radio Classified Ads.
https://swap.qth.com/

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Current Ham Radio Propagation Conditions.
Submitted by Tom WC9M. Thank you!
https://hamradiofornontechies.com/current-ham-radio-conditions/

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Suggested computer system backup software.
https://www.ubackup.com/free-backup-software.html
A good backup system is worth it's weight in gold!

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Ad Block Plus.
https://adblockplus.org/

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AC Log, includes a net logger.
http://n3fjp.com/