| Author |
Message |
kerlin
Guest
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 Posted:
Mon Apr 11, 2005 6:10 am Post subject:
help with HP noise figure meter |
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When I first turn on the meter I believ I should disconnect all leads
and then press the preset button. The displays should then show 30mhz
on the left hand side and Fdb on the right hand side. Mine show 30 mz
and E26. This is some kind od error message I guess. What could be the
prob and does anyone have a manual.
Thanks
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Glenn
Guest
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| Posted:
Mon Apr 11, 2005 6:10 am Post subject:
Re: help with HP noise figure meter |
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Probably this just means that with the leads disconnected it finds no
device (infinite loss and an infinite noise figure).
Try hooking the input/output connections together to see if it tries to
measure it's own noise figure...
Glenn
kerlin wrote:
| Quote: | When I first turn on the meter I believ I should disconnect all leads
and then press the preset button. The displays should then show 30mhz
on the left hand side and Fdb on the right hand side. Mine show 30 mz
and E26. This is some kind od error message I guess. What could be the
prob and does anyone have a manual.
Thanks |
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Guest
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| Posted:
Fri Apr 15, 2005 12:10 pm Post subject:
Re: help with HP noise figure meter |
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Error E26 means "internal attenuators not calibrated". You have just to
run at power on the cal routine. If cal constants are lost at the next
day turn on again errE26, the mem bat in the CPU is dead. Be very
careful : there was two models and one is rechargeagle, the other not
(it depends the ser nb)
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Glenn
Guest
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| Posted:
Fri Apr 15, 2005 6:10 pm Post subject:
Re: help with HP noise figure meter |
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Ah, that was it! Hook the leads together as I suggested and have it do a
calibration. That will fill the internal cal constants. As
113101.2243@compuserve.com suggested, if it happens again, the next time
you do a cold power-up, it means your batteries aren't keeping the data
alive when the instrument is off.
The Error is normal for the instrument before calibration (measurment of
itself). If it persists it means your battery is tired out.
Glenn
| Quote: | Error E26 means "internal attenuators not calibrated". You have just to
run at power on the cal routine. If cal constants are lost at the next
day turn on again errE26, the mem bat in the CPU is dead. Be very
careful : there was two models and one is rechargeagle, the other not
(it depends the ser nb)
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