FT-2000D/E VRF Module construction details

The main reason for the weakness of this design is the use of mechanical components to switch the circuits. Sixteen relays for switching the preselector capacitor array. During the 6 years of transceiver operation, the author was forced to replace the VRF module twice. Surface-mounting High-frequency Relay - OMRON G6K-2F-Y. Miniature switching relay. SMD version. 16 relays ob VRF board. 

 OMRON  G6K-2F-Y

Surface-mounting High-frequency Relay - OMRON G6K-2F-Y. Miniature switching relay. SMD version.

Characteristics. Endurance: Mechanical: 50,000,000 operations min. (at a switching frequency of 36,000 operations/hour)
Electrical: 100,000 operations min. (at a switching frequency of 1,800 operations/hour)

*" The electrical life expectancy of general purpose and power relays is generally rated to be 100,000 operations minimum, while mechanical life expectancy may be one million, 10, or even 100 million operations."

VRF Unit

 FT-2000D/E VRF Unit. 16 OMRON G6K-2F-Y relays on board.

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