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HP-IB not working on 85680B and unknown option again
Hello, the unit does not give any reaction when addressed with correct IB? address. Have checked HB-IB clock which is OK. I do not have the special extender board, so further testing inside circuit
By dk1vi · #94162 ·
Re: Help with EZGPIB
Thanks Harvey, I will keep this last reply online for anyone that wants to control one of these impedance meters/analyzers with EZGPIB. I just made some runs with a Chinese Test Fixture which pointed
By peter bunge · #94161 ·
Re: Help with EZGPIB
You could write it, but you'd have to do that. That's what you want. what:string says that the first argument we call it what here, is a string. It could also be 'this is a string', for constant
By Harvey White · #94160 ·
Wanted: HP 8340 Or HP 8341 Sig Gen non-working Parts unit
hi, I need an HP 8340 Or HP 8341 Sig Gen ? non-working ?parts unit to repair my unit (multiple issues). A non-working, but complete ?8340 Or 8341 ?would be good. Please contact me off-list, thank
By gren · #94159 ·
Re: HP8714ET Impedance
N connectors are air dielectric coaxial transmission lines where they mate. Impedance for an air dielectric coaxial line is: Z0 = 60 ln(r0/ri) So, a 75 ohm center conductor (ri) is necessarily smaller
By Chuck Harris · #94158 ·
Re: HP8714ET Impedance
Just to note¡­ ¡®90-48¡¯ is most probably the yeardate/week of manufacture code. Nigel Sent: 06 February 2019 14:20 To: [email protected] Subject: Re:
By nigel adams · #94157 ·
Re: HP8714ET Impedance
Hi Steve, an HP8714B just sold for $565 US. I suspect you paid much less for the 75 ohm version and as much for shipping.. My suggestion is to keep it and use it with 75/50 pads to learn about it
By peter bunge · #94156 ·
Re: HP8714ET Impedance
At 2019-02-05 03:33 PM, pianovt via Groups.Io wrote: From an cost standpoint, it would only be worth converting to 50 Ohms if you get the parts for free. Thank you for the confirmation. That's exactly
By Steve Hendrix · #94155 ·
Re: HP8714ET Impedance
From an cost standpoint, it would only be worth converting to 50 Ohms if you get the parts for free. Here are some pictures of the RF deck in the 75 Ohm design:
By pianovt · #94154 ·
Re: Help with EZGPIB
I don't know how the commas were changed to periods. The program is not elegant but works and should be useful without knowing anything about Pascal. I am going to leave it alone. This is a typical
By peter bunge · #94153 ·
Re: HP8714ET Impedance
Look in the service manual. It depends on the instrument. I remember looking at an HP 'scope that had 75¦¸ input long ago and it was the same as the 50¦¸ version but with an internal minimum loss pad
By bownes · #94152 ·
New 141T Spectrum Analyzer CRT available + Stuff Day
While getting things ready for Stuff Day (April 13th), I found a new factory boxed 5083-2511 storage CRT tucked away in the back room. If anybody has a 141T with a poor CRT that needs love and
By walter shawlee <walter2@...> · #94151 ·
HP8714ET Impedance
A fellow engineer raised a question re the 75 ohm characteristic impedance of the HP8714ET I just purchased off eBay. Although I have minimum-loss matching pads ordered and enroute, does anyone here
By Steve Hendrix · #94150 ·
Re: Help with EZGPIB
For the ST Micro, using TrueStudio, I use tokenptr = strtok((char*)&WIFI.RXbuffer.data[j],delimiters); strcpy(token[i],tokenptr); for a snippet of code. In pascal (first Delphi, then Lazarus), I had
By Harvey White · #94149 ·
Re: Help with EZGPIB
Thanks Reg; this was exactly the sort of suggestion I was looking for. It needs a closing bracket to compile EZGPIB_ConvertRemove('(NZFN|NTDN|K)',Answer); However it does not remove any items. This is
By peter bunge · #94148 ·
Re: HP8595E adding tracking generator
Wow, this half-typed reply has been sitting there buried under another window for two weeks. Sorry about that. But yes, not far at all. You're welcome any time. And I can take you on a tour of the
By Dave McGuire · #94147 ·
Re: Help with EZGPIB
Thanks Harvey; I was hoping for a simple answer such as: Sname:=EZGPIB_ConvertStripToNumber(Sname,Sname,Sname); // where Sname is the string Or some variation that uses commas, colons, quotes, or
By peter bunge · #94146 ·
Re: Help with EZGPIB
It's very common in string processing libraries to only replace the first instance unless a flag is passed. All the traditional Unix tools work that way as best I can recall. Does the EZGPIB
By Reginald Beardsley · #94145 ·
Re: Help with EZGPIB
Sadly, I cannot help - but I am interested in an answer to this as I will probably need to do much the same in the near future. David
By David Slipper · #94144 ·
Re: Help with EZGPIB
Peter. Try this worked example. ------------------------------------------------------------------------ Program Trial3;?? Procedure ShowError(); begin? // show an exeption message ??
By Dave_G0WBX · #94143 ·
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