[Skimmertalk] RU9CZD skimmer QS1R died in the recent thunderstorm. Help needed.

Igor Sokolov ua9cdc at gmail.com
Fri Aug 13 01:20:00 EDT 2021


Here is what datasheet says: (link to datasheet - 

Software: 8051 code runs from:
❐Internal RAM, which is downloaded through USB
❐Internal RAM, which is loaded from EEPROM
❐External memory device (128 pin package)

So you recon the internal 8051 is loaded through USB or from external 
memory when connected to  a computer?

73, Igor UA9CDC

12.08.2021 23:50, Bob Wilson, N6TV пишет:
> That is the USB transceiver chip, so I imagine it does not need any 
> firmware installed.
> But if there was lightning nearby while the antenna was connected, 
> many more chips could be damaged.
> 73,
> Bob, N6TV
> On Thu, Aug 12, 2021 at 11:20 AM Igor Sokolov <ua9cdc at gmail.com 
> <mailto:ua9cdc at gmail.com>> wrote:
>     RU9CZD skimmer is off line as our trusted QS1R that have been
>     serving us
>     for many years went out of order during recent thunderstorm. We would
>     like to try and fix it. The suspect is CY7C6813A. This chip is
>     available
>     locally but the question is, does it need some sort of firmware
>     installed prior to soldering it in. Is this firmware available from
>     somewhere? Help would be highly appreciated.
>     73, Igor UA9CDC
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