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PTT (MOX) Release when PA temp. reaches 44-47 DegressC

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Jens SM6AFV
Jens SM6AFV Member ✭✭
edited November 2019 in FLEX-6000 Signature Series
Operating my Flex-6600 on 80 m SSB (90W)  the PA temperature start to increase and when reaching 44-47 degress C the PTT(MOX) releases. After approx. 15-30 s I can activate PTT again. Using SSDR 2.5.1. The same issue with SSDR 2.6.1. The large fan does not increase
the speed when the PTT releases. 

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  • Joe N3HEE
    Joe N3HEE Member ✭✭
    edited November 2019
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    I took some temperature readings during the WAE RTTY contest.  I was calling CQ every 5 seconds at 100 watts.  I measured air temps of 57C coming out of the back panel right under the power connector with no operational issues.  I did not note the PA temps but I would think they were pretty high.  The cooling fan was running at full speed !  I am using Flex 6600M with SSDR 2.5.1 

    I suspect your fan controller is not ramping up the fan speed when the PA gets warm ?  Please open a ticket with Flex support.

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