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QMX+ receive current; what's typical?

 

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My QMX+, a factory 12v build,? draws 160ma at 9.28v, the voltage at which I operate for tx/rx.
for all modes. Transmit current is consistent with my readings.
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The various PDF manuals I have searched, speak of ~80ma for rx.
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I am interested to know if mine is a typical, and how it compares to other
build and operating voltages between 9v and 12v
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TIA,
?????? Pete/wa4hei
 

The QMX uses about 1W on receive so ~83mA at 1v, ~111mA at 9v and ~143mA at 7v. 160mA at 9.28v is a smidge high, but perhaps not enough to worry about?

When you run diagnostics, does the duty cycle for the various SMPS look normal?

gl de Russ va3rr
 

My QMX+ with QLG3 also draws about 160 mA at 9V.

As far as I can tell it is working ok.

73/72
John
M0JBA

On Tue, 27 May 2025 at 15:31, va3rr via <va3rr=[email protected]> wrote:
The QMX uses about 1W on receive so ~83mA at 1v, ~111mA at 9v and ~143mA at 7v.? 160mA at 9.28v is a smidge high, but perhaps not enough to worry about?

When you run diagnostics, does the duty cycle for the various SMPS look normal?

gl de Russ va3rr
 

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John, M0JBA said:
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"My QMX+ with QLG3 also draws about 160 mA at 9V"
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Thank you John and va3rr. I am at ease now that someone stated that which I had missed...
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My QMX+ with an QLG3 probably requires a little extra energy, also, to equal the power consumption of John's ;-)
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Russ, now that the GPS unit is in the equation, I have no concerns regarding the minor differences
between my hardware diagnostics and the image documented in the QMX+ ver 3 assembly manual.
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Might it be beneficial to have similar images for different voltage builds?
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Tnx agn,
???????????? wa4hei

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