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Re: RF Voltmeter?
The Boonton cables start to have high resistance in the shields, allowing signal ingress ion. The Boonton 91 is a tube model (The only schematic I have is for the 91CA). It has a 50K balance pot
By Michael A. Terrell · #86170 ·
Re: RF Voltmeter?
I have wanted an rf millivoltmeter for some time.? I was using my HP410B which is fine except it won't measure down to the millivolts. Then I realized that my HP54542A oscilloscope has great
By Bob Albert <bob91343@...> · #86169 ·
Re: RF Voltmeter?
Sorry, I was thinking about the B, not the C. Dave Sent: Thursday, October 12, 2017 10:57 AM To: hp_agilent_equipment@... Subject: RE: [hp_agilent_equipment] RF Voltmeter? Dave, Not
By Dave Wise · #86168 ·
Re: RF Voltmeter?
Dave, Not quite, the 410C has 15mV scale, same probe diode as 410B. Henry ---In hp_agilent_equipment@..., <david_wise@...> wrote : Apples and Oranges. The Boonton 92 is a
By Henry Feng · #86167 ·
Re: RF Voltmeter?
Apples and Oranges. The Boonton 92 is a specialized RF Millivoltmeter. The HP 410 is a general-purpose VTVM whose AC probe works at UHF. “Not quite as sensitive” – yeah, by three orders of
By Dave Wise · #86166 ·
Re: RF Voltmeter?
Michael, I think you are right. From the spec, the Boonton 92 seems has better sensitivity than HP410C, I don't have neither Boonton 92 nor HP410C so I can't comment on which one is actually
By Henry Feng · #86165 ·
Re: RF Voltmeter?
The Boonton 93 is a True RMS Voltmeter, usable to 20 MHz. Maybe he meant the model 92?
By Michael A. Terrell · #86164 ·
Re: RF Voltmeter?
Is Boonton 93 more like HP3400, HP3403?
By Henry Feng · #86163 ·
Re: HP AN/USM 281A Oscilliscope needs repair (San Antonio TX)
Great. Thank you! --------------------------------------------
By Andrew Maich <andremajic@...> · #86162 ·
Re: HP AN/USM 281A Oscilliscope needs repair (San Antonio TX)
Ok, I re-read your original post. Thank you for your patience. I used the calibrator sockets on the left side of the screen with 1 piece of wire in the negative and 1 piece of wire in the 10v socket
By Andrew Maich <andremajic@...> · #86161 ·
Re: Fast Rise/Fall Time Pulser
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By Reginald Beardsley · #86160 ·
Re: some 89410A/89441A notes
Ok. If I can find any of my 32MB ones, I will try it and let you (and the list) know if it will recognize additional memory. -Dave [hp_agilent_equipment] wrote:
By Dave McGuire · #86159 ·
Re: some 89410A/89441A notes
Unfortunately, I don't have a simm 72 pins more than 16Meg.
By Yves Tardif · #86158 ·
Re: Fast Rise/Fall Time Pulser
SMD parts are too small to have a human readable full part number, so manufacturers either leave them blank (thanks alot!) or put a code on them that uniquely ID's the part within the manufacturer.
By Chuck Harris · #86157 ·
more 89441A: remote sessions
For those of us on UNIX systems (including Linux), a quick and easy way to remotely activate an X11 session from a workstation is: echo "SYST:COMM:LAN:XWIN:STAT ON" | nc vsa 23 > /dev/null On
By Dave McGuire · #86156 ·
Re: help hp5300a / 5303a manual service
As you probably know already, the 5300A manual is readily available online but the 5303A does not appear to be. However, in November 2015 someone on EEVblog said that Dave of Artek Manuals had made a
By Mike Czuhajewski · #86155 ·
Re: Fast Rise/Fall Time Pulser
The Leo Bodnar pulser output level is adjustable but at outputs higher than some 1 v P-P the rise/fall times increase. I reported the ~0.95 v P-P as what was reported on the datasheet for *my*
By Larry McDavid · #86154 ·
Re: HP AN/USM 281A Oscilliscope needs repair (San Antonio TX)
Hi Andrew You seam to be going in circles as you say I don't have a signal generator I posted text below on Sunday 8 oct Basically you do have a signal generator on the scope it is called
By Paul Bicknell · #86153 ·
Re: some 89410A/89441A notes
[hp_agilent_equipment] wrote: This is great news! I think it's safe to conclude that it works; it would likely have failed very early during the memory tests if there were a basic incompatibility
By Dave McGuire · #86152 ·
Re: some 89410A/89441A notes
Send me via private email your original config file with AY9 enabled and I'll try to figure it out. A new checksum needs to be calculated to include this option, in the master config file, plus a few
By Ovidiu Popa [Business] · #86151 ·