Antennas

Professional Broadcasting Antennas:

   -FM Antennas

   -VHF Antennas

   -UHF Antennas

Professional Communication Antennas:

   -Mobile Antennas

   -Base Station Antennas

   -Portable Antennas

Power Splitters

   -FM Power Splitters

   -VHF power splitters

   -UHF power splitters

Filters & Combiners

RF Components

Consumer Products

   -Satellite Antennas

   -Terrestrial Antennas

DASTO  produces a wide rang of RF components-coaxial switches, coaxial connectors, adapters, rigid coaxial transmission lines, all designed and constructed under stringent quality norms. The contacts provide perfect electrical connection and are highly resistant to corrosion.

RF Coaxial cable connectors

Adapters

Coaxial switches

Rigid lines

       RF Coaxial cable connectors:

• General. DASTO's RF coaxial connectors with 7/16 DIN, N, and EIA flanged terminals are designed for RF coaxial cables with characteristic impedance of 50 ohms. Their construction secures solid contact to both the outer and center conductor.

• Mechanical design. All resilient contacting parts are made of copper beryllium alloy and are thermally treated in special dies. Pure PTFE is used for insulation to provide consistent performance characteristics even at high operational temperature. The silicone O-rings are used to prevent moisture and water penetration between the connector components and the cable.

• Frequency range.                  0-1000 MHz

• Impedance:                           50 ohms

• VSWR                                   <1.03

• Material:

            Body and other contact components:  CuZn39Pb

            Center conductor:                             CuZn39Pb3, CuBe

            Insulators:                                        PTFE

            Gaskets:                                          Silicone rubber

            Hardware set:                                   Stainless steel

            Finish:                                              Electrolytic and chemical bath

        Part 1-119 K  Part 2-335 K Part 3-227 K  Part 4-445 K   Part 5-387 K

         Adapters:

General. DASTO produces four types of adapters: straight, panel mount, "T" and Right Angle adapters. All types of adapters have  50 ohms impedance.

         215 K

         RF Coaxial transfer switches

        RF Coaxial transfer switches (50 ohms)

• General. DASTO coaxial switches 7/16" DIN, 7/8" DIN and 1 5/8" EIA motorized blade type with four ports are intended for fast are reliable switching of coaxial transmission line systems. The coaxial switch 7/16 has standard 7/16 DIN female interfaces. The ports of the 7/8" and 1 5/8" coaxial switches are terminated with standard EIA fixed flanges with non-removable mail inner conductor connectors. All sizes have similar construction and use the same drive package.

• Mechanical design. The switching is accomplished by one of 24 VDC motor and a simple Geneva mechanism, providing a very accurate 90⁰ rotation and mechanical locking of the rotor in the switchers operating position. A dwell period between the rotation of the driving shaft and the movement of the RF contacts, activates the auxiliary micro contacts which disconnect the RF power throughout the switch to prevent any damage of the components attached and the switch itself. The switches are equipped with a visual position indicator and emergency knob for manual switching.

            334 K

          Coaxial switches - U link type 

• General: U - link type motorized coaxial switches are capable of very high isolation (minimum cross talking) and high power handling, intended foe easy and reliable switching of coaxial transmission line system and also for multiplying transmitters and antennas in matrices. The four ports are placed at the front side and are terminated with fixed flanges with non-removable mail inner conductor connectors.

• Switching: It is realized by means of 24 VDC motor and specially designed kinematics which provide disconnecting, rotation of 90⁰ and finally reconnecting of the two U-link connections. An electrical interlock system based on auxiliary micro switches is designed so that power is removed before switch operation can be carried out. The switch can be controlled manually with the handwheel  mounted on the switch.

        257 K

      Coaxial switches - matrix systems

• Matrix system. Any number of U-link type coaxial switches can be organized in matrix system where any transmitter could be connected to any antenna at any given date or time. These matrices have an application in a number of frequency bands but they are primarily designed for high frequency because of the minimum cross talking (isolation >100 dB). The matrices offers flexibility in design and allow for future expansion by direct addition of column or row switches. It is impossible at the same one transmitter to be connected to another, or two transmitters with one antenna. When there is no need of connection of any transmitter to any antenna, these matrices offer an opportunity some of the matrix cross point switches removed and simply bridged with U-link coaxial transmission line.

         326 K

       Rigid coaxial line

General. The rigid coaxial lines constructed by DASTO are manufactured using high quality material, by highly qualified personnel and subject to rigorous quality controls with the aim of providing a high degree of quality as well as perfect finish.

         386 K