Interfacing an S-Com 7330 to a Yaesu DR-2X
The DR-2X currently lacks a true un-gated discriminator audio output. This requires a re-work of the previous method (used with the DR-1X) of managing the AMS mode with an external controller. Some of the details of the 15-pin I/O interface are being worked out.
In the mean time, some repeaters that DO work with external controllers as well as the multi-mode digital MMDVM system include:
- BridgeCom BCR series
- Kenwood TKR-750 and 850, as well as the new NexEdge variants
- GE Mastr III
- Motorola Quantar and MTR 2000/3000
- Many others.
Any of the repeaters mentioned above will make great System Fusion repeaters with MMDVM installed, The BridgeCom currently sells for $1000 and the others can be had in the used market for less than the cost of a DR-2X. A fully functional MMDVM system on a Raspberry Pi can be setup for as little as $100.
I currently have no plans to purchase or test the DR-2X.