The AMARC Multi-Band Remote Base UHF Repeater System Construction
The Multi-Band Remote Base UHF Repeater System is controlled by the ICS Linker 2 repeater controller.
The only modifications to the controller required was to remove the 15 pin D connectors because the controller was too large to fit inside the VXR-5ØØØ repeater cabinet.
And, to install the current limiter resistors for the FT-1ØØD push to talk circuit.
The ICS Linker 2 shown with the interface cable connections.
The Yaesu FT-1ØØD radio has the microphone PTT and channel up and down buttons on a single wire. They use different current to switch these 3 functions.
The controller needs to switch the PTT, and the up channel functions, so a current limiter resistor was needed inline to both switching transistors.
The ICS Linker 2 back side showing the FT-1ØØD mic PTT and Channel Switch limiter resistors.
The ICS Linker 2 front side shown installed in the UHF Repeater with my home made brackets.
The UHF VXR-5ØØØ internal connections from the controller to the FT-1ØØD.
The UHF VXR-5ØØØ internal connections from the controller to the FT-1ØØD close up.
The ICS Linker 2 front side shown installed in the completed UHF Repeater.
The FT-1ØØD Internal connections to the main circit board for PTT-Up Ch, Rx COS and Audio, and Mic Audio.
The FT-1ØØD mounted to the 19 inch rack panel.
The VHF VXR-5ØØØ and FT-1ØØD setup and alignment. This took a day.
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