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Looking for power supply recommendations
I am looking for recommendations for a power supply for my (soon to be) Flex 6400.
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Answers
I use Astron 35A...or the Samlex 1235M...either works fine.
73
Lou N2TU
TekPower TP50SW 50 Amp 13.8V Analog DC Power Supply
Using with my 6700.
Best,
Rick
Are they quiet? I have an Astron RS-50A, but it vibrates and creates an audible hum in the shack.
Are they quiet? I have an Astron RS-50A, but it vibrates and creates an audible hum in the shack.
I will give that a try.
73 - David, AG4F
I would have to say that overall the best 12vdc power supply value is an Astron liner supply, The 35M or 50M would be the best choice for the shack.
Although there are some very good Switching supply available none are as quiet across the HF/VHF/UHF spectrum as a Liner Power Supply.
A few reasons to choose an Astron is that they have been in business for over 40 years and have great customer service and very simple clean design, Easy to service and most important No RF Hash!And when you just spent thousand of dollars on a state of the art SDR the last thing you want is a power supply detracting from the radios performance.
73
Lou N2TU
They just keep on ticking and the Company has a great reputation.
Ned, K1NJ
GB
The latest Astron’s have a “Soft-Start” or a Thermistor in series with the primary of the transformer to eliminate In rush current, which is why sometimes with some of the older supplies they will make a loud thump sound when you turn the power on. Also all of the new supplies with meters will now come with LED back lighting so no more burnt out lamps to replace. So Astron continues to make their products better as time goes on.
I got the Astron inexpensively from a Ham who was getting out of the hobby. It is a heavy piece of iron. Works well, but if I had to choose, it would be the Alinco.
I would rather start with a supply that doesn't generate noise to begin with, the fact that you have to rotate a knob to move the noise around seems a bit silly.
I figure it this way if I just spent between $3K-$7K on an SDR I can spend a few extra on a “Clean” power supply.
Also consider that the way a Flexradio works is it is capturing the entire HF band at one time and breaking that down into slices, so If any unwanted noise gets in to the radio it will reduced the overall receive performance.
The biggest advantages of a switch mode supply is that they are light weight and small size witch for some might be important especially if you have a portable setup..
Wouldn't you want to be able to operate when there is a power outage?
While you're at it, choose a car battery that also fits your car, and now you have a backup battery you can use in case your car's dies.
I should add that my 3 different Astron RM-50 Each Feed a PowerGate PG-40S to charge big AGM batteries. Then 12V DC Buses are on the battery side and the Astrons mainly acts as a charger for the batteries. Virtually eliminates any noise from the power supply and provides clean power to all my 12V devices.
I might add I also have a 5VDC Bus that feeds off one of the 12V DC Buses.
It is a switch mode PSU with an analogue meter.
To date I have not needed to use the noise offset.
Andrew VK5CV