Power Supplies and Flex 6300 questions

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  • Updated 4 years ago
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Taking advises , cause I guess my power supplies is not working properly 

What power supplies would you recommend? linear or switching ?

whats's the ideal Power Supply Peak Output   Amp.?  and VDC ?


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Posted 4 years ago

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KY6LA - Howard, Elmer

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1.  Definitely avoid switching supplies..they all by design generate RF Noise.. some of the better brands have a knob to allow you to change the RF noise frequency but why bother... A good linear supply is much better without the noise issues

2.  Do not undersize your power supply.... Most ham supplies are rated at peak rather than Average Power.. So a 35A Peak Supply likely will only handle 25A Average.  A 100W Ham XCVR needs at least 20-25A Average and as much as 25-40A Peak.. so a reasonable supply would be a Astron 50A peak Linear Supply.

3.  Do not use small cables- At currents of 40 A can produce quite a voltage drop over even a relatively short cable... #10 wire will work to 1Meter, #8 to 2 Meters,  #6 for longer than 2 Meters..But you should also keep your cables as short as possible to reduce voltage drops..

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