Summary of Contents for DX Engineering Top Ten Devices OPSWAPPER
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OP Swapper TDS-OPSWAPPER TDS-OPSWAPPER-INS Revision 0 DX Engineering 2021 1200 Southeast Ave. - Tallmadge, OH 44278 USA Phone: (800) 777-0703 Tech Support and International: (330) 572-3200 Fax: (330) 572-3279 E-mail: DXEngineering@DXEngineering.com...
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Features Overview The Top Ten Devices Op Swapper (OS) is an accessory that allows a single antenna system to be shared between two transceivers, while providing protection to the non-transmitting radio’s front end. Here are some of its features: Positive Lockout The OS uses electrically interlocked relay contacts that prevent two transmitters from being active at the same time.
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Transmit Inhibit (TXINH) Setup The only configuration possible with the OS is an internal jumper that configures the “transmit inhibit” (TXINH) signal associated with each radio. Important Notes: Radios A and B can be of any type, and there is no requirement that they both be the same type. ...
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If one or both of your transceivers is other than Yaesu or K3, then the setting of the SH1/SH2 jumper is immaterial, and can be left installed. More later in Section 6 on how to interface other manufacturers’ radios to the OS. Reinstall the cover using previously removed screws and lock washers.
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Elecraft K3 – The TXINH line is on Pin 7 of the ACC jack. The ACC jack is a DE-15, otherwise known as a VGA connector. Fig. 4 – Elecraft K3 AUX Connector Connect the TXINH line to Pin 7 and cable shield to Pin 5. Access to these pins –...
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6. Radios other than Yaesu or K3 The OS can be used with other radio types. The difference in the interconnections is that Yaesus and Elecraft K3s are the only radios that allow the transmitter to be held in a TX-inhibit mode using an external signal.
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How it works – OS connector Aux 1 tip goes to 12Vdc when Radio 1 goes into transmit mode. External relay K’s contacts open to prevent transmit audio (from microphone, computer, etc.) and CW key line (from keyer, computer, etc.) from reaching Radio 2, which will prevent SSB or CW RF energy from being transmitted by Radio 2.
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Warranty All products manufactured by DX Engineering are warranted to be free from defects in material and workmanship for a period of one (1) year from date of shipment. DX Engineering’s sole obligation under these warranties shall be to issue credit, repair or replace any item or part thereof which is proved to be other than as warranted;...
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