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HP 8116A woes with E42 error
Hello everyone. Long time lurker / never poster. Waned to see if anyone may have some ideas on an issue that I am having with an 8116A? function generator. The output of the unit slowly started to
By Swiss · #126716 ·
Re: LackRack
Yes... yes it is! I'm not saying I have enough style to avoid this; but, I don't smoke as much of that stuff as some Google engineers might (whatever a Google engineer might be.) Fortunately,
By Roy Thistle · #126715 ·
Re: Limits of the Port Extension on the Cal screen for calibrating at end of cable
Dr. Kirkby: " You will need to slow the sweep speed down, below that automatically chosen for you. Otherwise the frequency of the oscillator will have shifted outside the passband of the receiver by
By nj902 · #126714 ·
LackRack
This might be an interesting idea for small rack mounts "The LackRack is the ultimate, low-cost, high shininess solution for your modular datacenter-in-the-living-room. Featuring the LACK (
By Bill Higdon · #126713 ·
Re: 53181A 3 GHz prescaler from China
I saw a clock multiplier module on eBay the item number is 362887003547 - P1: Input Port (Input 2~50MHz, Minimum Input Voltage 100mVp-p) SMA Interface. - P2: Output Port (Maximum 150MHz) SMA Interface
By Eric Haskell [KC4YOE] · #126712 ·
Re: HP8640B no rf out
This fellow rebuilds the 8649B range gear assembly. ?I sent mine in and got the rebuilt back soon. ?Can¡¯t recall cost. https://www.electronicsrevisited.com/#Home
By Henry Newton · #126711 ·
Re: HP8640B no rf out
If I'm not mistaken, these fingers are the same ones that are on those disks: https://www.ebay.com/itm/125225534497 Thanks, Barry - N4BUQ
By n4buq · #126710 ·
Re: Limits of the Port Extension on the Cal screen for calibrating at end of cable
wrote: A wavelength of roughly 20 m. I want to place the measurement plane at the end of a 100 foot length of Em, wish you would work in metric! Let's call that 30 m. So your cable is 1.5 wavelengths
By Dr. David Kirkby, Kirkby Microwave Ltd · #126709 ·
Re: HP8640B no rf out
If you are unable to find exact replacements, many have successfully improvised substitutes. I've used the contact fingers from cast-off solderless breadboards and Lothar's method of screwing them
By Tom Lee · #126708 ·
Re: Limits of the Port Extension on the Cal screen for calibrating at end of cable
That's true on the 8753, but the PNA-X, and probably some lesser instruments, allow loss to be added too. But no port extension is needed here. Dave
By Dr. David Kirkby, Kirkby Microwave Ltd · #126707 ·
Re: HP8640B no rf out
A very similar style of these ¡®finger¡¯ contact is found in the 8011/12/13 pulse generators which can be found quite cheaply¡­. How do i know¡­ just repaired one¡­ works lovely.
By nigel adams · #126706 ·
Re: Limits of the Port Extension on the Cal screen for calibrating at end of cable
wrote: In addition to the points raised by others, there is another factor to consider. You will need to slow the sweep speed down, below that automatically chosen for you. Otherwise the frequency of
By Dr. David Kirkby, Kirkby Microwave Ltd · #126705 ·
Re: HP8640B no rf out
Other HP switches use those wipers. I think some of the slide switches on the 8640B use them but I think there are others too. Thanks, Barry - N4BUQ
By n4buq · #126704 ·
Re: Limits of the Port Extension on the Cal screen for calibrating at end of cable
One more comment regarding maximum cable length. If you have option 010 (time domain), there is a limit to the time interval you can display, but I think that's tied to the math for the transform.
By pianovt · #126703 ·
Re: Limits of the Port Extension on the Cal screen for calibrating at end of cable
Karin, As I understand your question, you are concerned that the calibration data for a long cable requires larger numerical values due to the many 360 degree repeats of the phase. The analyzer
By pianovt · #126702 ·
Re: Emails to [email protected] blocked
Based on recent painful experience, I've discovered a couple of things: 1. Some ISPs block based on listing in some questionable databases. In particular, the "UCEPROTECT" lists range from including
By John Ackermann N8UR · #126701 ·
Re: Emails to [email protected] blocked
Oops, typo. That was www.debouncer.com -- Paul Amaranth, GCIH | Manchester MI, USA Aurora Group of Michigan, LLC | Security, Systems & Software paul@... | Unix/Linux - We don't do windows
By Paul Amaranth · #126700 ·
Re: Emails to [email protected] blocked
Actually, that means the IP of your email server is blocklisted. If you do a reverse lookup on that, it resolves to mail-pj1-f53.google.com. You can look up IPs on line to see which, if any, blocklist
By Paul Amaranth · #126699 ·
Re: checking line module setting for 110V / 220V
Many thanks for your great feedback. It gave me enough courage to pull the little card out. I found I had a pair of pincers with a hook on the tip. No idea what it was originally for, but worked
By tom_iphi · #126698 ·
Re: HP8640B no rf out
The 8557/58/59 used the same kind of disks you could possibly find a parts mule on ebay though there is no guarantee that its not going to suffer from the same disease as this was a common problem.
By Lothar baier <Lothar@...> · #126697 ·
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