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Operation under emergency conditions

Dr. Pedro E. Colla (LU7DID)
 

Adam,
 
In a bare bones emergency situation to which extend the D4D works with a high capacity 5V pack as it's sole power supply? (assume connectors worked out properly).
 
¿Does the D4D work with less performance/power? ¿Works very degraded? ¿Doesn't work at all?
 
Thanks for your answer. 
 
73 de Pedro, LU7DID
 

Adam Rong
 

Hi LU7DID,

If you really need to work at 5V, it is recommended to replace 78L05 by a LDO type 5V regulator.

For the TX amplifier, the output can be as low as 100-200mW if you power with 5V. You can test it.

Thanks,
Adam

在 2019年9月4日,下午8:04,Dr. Pedro E. Colla (LU7DID) <lu7did@...> 写道:

Adam,
 
In a bare bones emergency situation to which extend the D4D works with a high capacity 5V pack as it's sole power supply? (assume connectors worked out properly).
 
¿Does the D4D work with less performance/power? ¿Works very degraded? ¿Doesn't work at all?
 
Thanks for your answer. 
 
73 de Pedro, LU7DID
 

Dr. Pedro E. Colla (LU7DID)
 

Thank you!