Diamond SX-400 Power SWR Meter for VHF UHF radios - A Detailed Review

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Today on HamRadioComms I do a detailed review of this excellent Power/SWR meter.
This meter will work with radios that are in the 140 - 525 Mhz frequency range.
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thanks! Full refresh of a forgotten art: antenna maintenance :)

melissarainchild
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TY for all the info👍
I just received mine (SX-600)
I love the classic design.
Mainly bought it for my UHF repeater antenna.
Will also use on my CB antenna in future when the installation is done.

BogusBolloks-mfwq
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Great review very helpful thank you 🙂👍

MJKW
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I have the sx600 and like you, I find it to be all that I need.

buzzsah
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Why does it have both: cal/swr and a fwd/ref switch?

Very unusual to do this both ways !

clems
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Hi, if the SX-400 meter will work with radios that are in the 140 - 525 Mhz frequency range, so it will not work for the air band with a frequency range of 118 Mhz - 137 Mhz ? Also, on the 13.8v DC power of the unit, would the center point of the plug be positive? Thanks and hope to hear from you soon.

jackmichael
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Is it actually accurate? reverse the connections on the back and see if it still reads the same...

kenwilliams
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Привет друг, помоги мне если сможешь, мне нужно фото diamond sx 200 изнутри.
Отвалились провода, теперь не знаю

vradiusse
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Cut to the chase, let's see it operate, put some power into it.

cdlthelion