[hpsdr] Overclocking a 130 MHz LCT2208 to 142 MHz - HPSDR on 4 meters?

[Henry Vredegoor]

Hi All,

Would overclocking a "Standard" 130 MHz LTC2208 as fitted on Mercury to 
say, about 142 MHz  be possible using standard overclocking techniques 
like extra cooling, voltage adjustments and so on?

Since the 70 MHz / 4 meter band is becoming more and more a regular 
legal amateur radio band (in Europe), this would make Mercury a nice 
receiver for this band!

Questions:

- Is overclocking (about +10% of the clock) at all an option for this 
type of device, an ADC?
- Clock frequency? (multiple of 192 kHz, 142.08 MHz?)
- Is there an appropriate clock device with the required spec's for this 
higher frequency available at a reasonable price?
- Additional cooling? Microfan?
- Voltage adaptations?
- Adaptions for the FPGA-code, PowerSDR, KISS?
    (I know Gerd - DJ8AY once did a version of Mercury / PowerSDR for 
the 160 MHz version of the LCT2208 (LCT2209?) )

Would like to hear any thoughts on this.

73's,

Henry - PA0HJA