$ £

4O3A Signature

4O3A designs and manufactures high-quality accessories and TCP/IP controlled solutions for your shack. Our flagship Genius line of products are designed specifically to eliminate station complexity, reduces cost and improve operator efficiency. Created by world-class contesters and engineered for reliability, they can push your contest scores higher.

Our new PowerGenius XL RF linear amplifier is exceptionally clean, quiet and delivers full legal-limit power at 100% duty cycles. The only fully SO2R-capable amplifier it has 70dB nominal isolation between exciter inputs. Like our entire Genius product lineup, it is monitored and automated through an integral Ethernet connection.

power genius xl linear amplifier

Linear Amplifier Power Genius XL

The PowerGenius XL is a 100% ICAS duty cycle, legal limit (1500W ICAS) 1.8-54 MHz RF amplifier. Designed with a pair of the latest NXP MRF1K50H LDMOS transistors that are each capable of 1.5 kW and run up to 2000W easily, providing plenty of headroom for lowest IMD and spurious output. 

Factory price: CALL US!

Learn More
Tuner Genius

Tuner Genius

  • Integrates with any transceiver
  • Designed to complement FLEX-6000 series transceivers and the Power Genius XL™ amplifier
  • Samless SmartSDR™ software integration
  • Complete control and monitoring (over LAN) from an intuitive Windows™ application
  • Contest ready - the ONLY single-radio SO2R solution in amateur radio
  • High accuracy SWR and power meter measures in bypass mode.... and much more.

Factory price: CALL US!

Learn More
Antenna Genius antenna switch

Antenna Genius 8x2+ V2

Antenna Genius is a smart antenna switch that features 8 antennas to 2 radios. Perfect for SO2R and multi-op contesting or making the most of your dual RX transceiver.

LAN/WAN capability was a core design capability from day one and not an afterthought. The entire Genius product line: Interface Genius, Antenna Genius, Rotator Genius and Station Genius all work together seamlessly both locally and remotely.

Factory price: 899 EUR

Learn More

4O3A Signature

Ratisevina bb
ME-85347 Igalo
Montenegro, Europe
P: +382 68 380 000


World Wide Delivery

ups logo

Check our shipping rates HERE!



Subscribe to the latest news about our products, promotions and events

Please enable the javascript to submit this form