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After my successes with adding a VFO to my pair of Midland 13-898Bs I pulled my old Pace Sidetalk off the shelf and started messing with it. Here are some observations:
1. The VFO can be added using the same method as for the Midland.
2. The “standard” sine wave output (1V PP)from the DDS module is insufficient for the Pace.
3. Using the nasty looking 5V square wave appears to provide enough drive but I am going to build a little buffer amp so I can use a sine wave.
4. Sensitivity and…




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