Factory Developed Modifications

1 - Modification to provide external output for selected radio. (MOD100113.pdf)

2 - Modification to provide speaker audio on front panel microphone connector pins. (MOD100118.pdf)

Customer Submitted Modifications

1 - NCS-3240 Multi-Switcher & Alpha Delta PathMINDER Digital Coax Switch Modification (By Frank LaFranco - W6NEK) (Web page)(Word document)

Technical Notes

1 - deleted

2 - Non-selected Radio Monitoring/Muting and More Than Four Radios. (TECH100115.pdf)

3 - deleted

4 - deleted

5 - Multi-Operator Multi-Radio Configuration (Great for EOCs!)(MultiMulti.pdf)

6 - Multi-Switcher-Multi-Rx Interface. This document shows how to connect the NCS-3240 Multi-Switcher and the NCS-3230 Multi-Rx together for the ultimate in operating convenience. Cable part numbers shown are available from NCS. (MS-MRx.pdf)

7 - Using a paddle key with the Multi-Switcher. This document shows how to connect a paddle to the NCS-3240 Multi-Switcher. (Technical Note_Paddle Switching with NCS3240.pdf)

8 - Ground Loops Associated with the NCS-3240 Multi-Switcher. This document discusses the causes and cures of ground loops associated with the use of the NCS-3240 Multi-Switcher. (Ground Loops_AppNote.pdf)

9 - Multi-Switcher-Multi-RxII Interface. This document shows how to connect the NCS-3240 Multi-Switcher and the NCS-3203 Multi-RxII together for the ultimate in operating convenience. (NCS-3240_NCS-3203 Application Note.pdf)

10 - 3240 Receive Audio Filter. This document shows how to connect a receive audio filter to the NCS-3240. (3240 Receive Audio Filter.pdf)

11 - 3240-3203 So2R Operation. This document shows how to connect the NCS-3240 and the NCS-3203 for SO2R Operation. (3240-3203 SO2R Operation.pdf)