FT-857D Additional Cooling Required?

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FT-857D Additional Cooling Required?

Hi All,

Im about to start trials of WSPR at 1W using my FT-857D, with a 20% tx/rx cycle.

Having not used the 857 for WSPR before, can anyone who does tell me if the heatsinking of the radio is effective enough, or is it worth me arranging for additional forced airflow?

Martin G7MRV

(857 mobile setup is currently uploading RX spots for 20m!)