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Date
Re: 3325B FAIL 023 issue
At least go through the power supply checks for level and ripple. That should be the second thing done after removing the case. Regards, Tom
By Tom Miller <tmiller@...> · #38627 ·
Re: 3325B FAIL 023 issue
A lot of times, all you need to do is go thru and do the adjustments shown in the calibration manual. There¡¯s nothing in there that¡¯s too involved or involves anything exotic as far as test
By Richard Parrish <calcntr@...> · #38626 ·
Re: 3325B FAIL 023 issue
Eric, ? Check all those molex type board to board connectors and their wires where they are crimped in the plugs.? Those things really fail alot! ? Jon To: hp_agilent_equipment@...
By rpoz28cam · #38625 ·
hp8921a
Hi guys .I am wondering if someone can tell me what I need to be able to use a spectrum analyzer to scan rfi in a dc 13volt solar system . Is it a dc probe or just a small sniffer antenna or possibly
By kerincom <kerincom@...> · #38624 ·
Re: Tunnel Diode Questions
Hughes Aircraft Company used cascaded Impatt diode amplifiers in the radar of the now retired Phoenix missile, to achieve (for the time it was designed) a respectable amount of power; probably at X
By Stuart Landau · #38623 ·
Re: Tunnel Diode Questions
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By Stuart Landau · #38622 ·
Re: 3325B FAIL 023 issue
Eric, ? Check all those molex type board to board connectors and their wires where they are crimped in the plugs.? Those things really fail alot! ? Jon ? To: hp_agilent_equipment@...
By rpoz28cam · #38621 ·
Re: Tunnel Diode Questions
Stuart - the TD amps do use circulators. I have some Impatt amps for 44 ghz with the same design. Will
By will jensby · #38620 ·
Re: Tunnel Diode Questions
The complication with using a tunnel diode as an amplifier is that it's a one port device! The input is also the output. By using circulators it can be made to work. It was an inexpensive alternative
By Stuart Landau · #38619 ·
3325B FAIL 023 issue
Hi, Recently, FAIL 023 appears on selftest on my signal generator. According to the service manual, FAIL 023 refers to DC OFFSET TOO POSITIVE DURING CALIBRATION. Generator frequency is accurate.
By Rico <ve2tso@...> · #38618 ·
Re: Tunnel Diode Questions
I have two tunnel diode microwave amps here, saved from many years ago. The first time i tested them, i put in 0 dbm and got little gain. that was way too much drive for the amp. Will
By will jensby · #38617 ·
Yig Oscillator 5086-7500 Schematic
Does anyone have a schematic of the Yig oscillator module that goes in a 83752B? This is a dual Yig oscillator and the lower Yig doesn't oscillate from 2-3.5 GHz. Regards, Pete B
By pete.berquist · #38616 ·
Re: Tunnel Diode Questions
Consider hard. Frankly, I think you'll have a hard time replicating some of the functions of a fast TD triggere or switch. -John ================
By J. Forster <jfor@...> · #38615 ·
Re: Triangle to Since Conversion
Any function generator that does not use a D/A and a LUT works that way. This includes Wavetek, HP, Tek and others. Have you looked at the parts list for your instrument? -John ===============
By J. Forster <jfor@...> · #38614 ·
Re: Tunnel Diode Questions
Very few tunnel diodes were used as microwave amplifiers. Usually they were used to provide a trigger pulse for an oscilloscope or very fast pulse for TDR or sampling scopes. If you need triggering,
By Stuart Landau · #38613 ·
Re: Request: Comments on modern Multi-Meters
I'm going to guess that you mean the 34401A. No, but the manual is right there on agilent.com so you can see for yourself when you have to use the menu. Hard to answer when you don't say *why* you are
By David DiGiacomo · #38612 ·
Re: Tunnel Diode Questions
Thanks, Gents, That clarifies the issue for me. Early transistors were mostly low frequency as I remember. If I am confronted with one of those tunnel diode circuits, I will consider using fast
By br4av01 <br4av01@...> · #38611 ·
Re: Noise figure meas. of a S.A.
Dear Marco and Gianfranco, your explanations are right , If the equipment has this feature, you can also use the Marker noise function to display the average Noise Power density expressed in
By Guy DAIPRA · #38610 ·
Re: Noise figure meas. of a S.A.
Dear Gianfranco, thermal noise power density at 300 K is approx -174 dBm/Hz. 174-137 gives 37 dB NF - a little high for a S/A. My ADV R3361A specification says (page 10-3) thet the average noise level
By Marco IK1ODO -2 · #38609 ·
Noise figure meas. of a S.A.
Hi, I am trying to measure/calculate the noise figure of my S.A.(Advantest3361). -the specification says "Average noise level -121dBm; I am surprise that this indication is a power not specifying any
By canale · #38608 ·