Overview

DX Engineering TFS4 Series B Transmit Four-Square Relay Units

DX Engineering TFS4 Series B Transmit Four-Square Relay Units bring together the highest level of engineering excellence with the practical realities of operator convenience and ease of installation. The TFS4 Series hybrid controllers are available in versions for the 160, 80/75, and 40 meter bands. They are easily dropped into your quarter wave spaced vertical 4-antenna array to provide optimum directional control. The systems allow the operator to receive or transmit with gain in any one of four directions with a good front-to-back ratio, and then to a single Omni-directional pattern, and then back again, with the push of a single button. This combination is a great tool, which permits you to listen and transmit "all-around" looking for DX, unhindered by pattern nulls, and select the best direction for signal reception and noise rejection.

If you already have a four-square array with a hybrid controller and would like to upgrade to improved performance and have the Omni feature, the DX Engineering TFS4 Series is a direct transplant.

The TFS4 features:

* Four directions plus Omni allows for versatile operation
* 5 kW CW Power Rating for high reliability
* Hot switching lockout disables amplifier during switching
* Drop-in replacement for COMTEK for easy upgrades
* Proven DX Engineering RF relays for high performance
* RF Shielded, high impact thermoplastic cover offers unique protection
* Relays cycle during Power-On to ensure clean contacts

Documentation

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