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  2. Mastrant
  3. We sponsor
  4. HAM fests
  5. Joplin Amateur Radio Club Hamfest (MO, USA)

HAM fests

  1. http://joplinhamfest.org/

News

Great guying video 7. 11. 2025

We recently stumbled upon this video, which playfully demonstrates, among other things, the basic principles of guying and why it is essential to guy most antennas at two or more levels. Thanks Practical Engineering for great job. Watch it here: The Bizarre Bases of Antenna Towers.

 

Sales and Leftovers 10. 7. 2024

Summer has reached our warehouse! 🏖
We are introducing a new category in our e-shop called "Sales and Leftovers". Some products are very discounted and most of them have only a few pieces.
Buy it before it's all gone! 
Mastrant - On-line shop
 

Rope winder 320 mm aluminium 1. 4. 2024

New product on sale - the Mastrant rope winder! See the description for a better understanding of the variability of use. On sale in the USA from May (after Dayton).

 
Read more

Contact

Cassiopeia Consulting, a.s.

Statutory address: Thamova 7/221 
Praha 8, 186 00, Czech Republic

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Details here.

US representatives: 
Ken (Amateur Radio):
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Mark (Industrial):
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WRTC 2026

WRTC_2026

Mastrant has been a sponsor of WRTC competitions since 2014.

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