Re: HP 141T sn:1850A 16959, hp: 8556A sn: 1907A 04190 and hp 8552B sn:1841B sn:1841A15130
Crazy thing here....
A 1% 131ohm resistor.....
If that precise value needed to be chosen then it ought not be at that tolerance ....
1% of 131 is +/- 1.31....
Making a 130 ohm more reasonable...
I'll bet it cost more than a standard E series value... even 0.1cent makes a difference in volumes used...
Accountancy strikes again?
Regards
Nigel
Sent from Samsung by banging a nail into a piece of wood.
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-------- Original message --------
From: "George Fridrich via Groups.Io"
Date:11/10/2018 16:58 (GMT+00:00)
Subject: Re: [HP-Agilent-Keysight-equipment] HP 141T sn:1850A 16959, hp: 8556A sn: 1907A 04190 and hp 8552B sn:1841B sn:1841A15130
Can¡¯t give the location, they are still throwing stuff out. :-)
On Thursday, October 11, 2018, 10:48 AM, Daniel Koller via Groups.Io <kaboomdk@...> wrote:
Ok, this begs the questions:? Where?? What dumpster?? We can't help you until you tell us exactly where this dumpster is!? ;)
And there are places that still throw things in dumpsters?? Every source I have ever acquired stuff from in the past has long since switched to "property management" for disposal.? I haven't had a cool dumpster find in 20 years.
? Dan
On Wednesday, October 10, 2018, 8:22:35 PM EDT, George Fridrich via Groups.Io <george.fridrich@...> wrote:
Just saved the 141T from the dumpster, powered unit up and got no initial signal on Scope, found 1/4 amp fuse open, put fuse in, brought unit up without modules in and fuse did not blow, inspected both 855 units, found 8552B had a burnt component smell,
removed A7 board and found R7 burned badly! ?Q2,3,4,6,712 & 18 ?open ( not working). I down loaded some manuals, I want to check voltages before repairing the board, not sure where the voltage test points are on the 141T, drawings are not very good. I would
like to find replacement transistors & were to find R7 131ohm 1% resistor 1/8 watt. I would like to bring it back to life, it is so well made, a work of art! Any help would be appreciated.
|
Can I capture a missed pulse with an old HP 54501A scope?
11/10/2018 21:36
I have a Si5351a synthesiser chip that is supposed to give out 180
degree out of phase 137kHz square waves from pins CLK9 and CLK1. I
believe the firmware that runs it may have a bug as I see the
occasional drop out, very brief and seemingly random. I THINK there
may be a higher frequency, lower amplitude signal showing during these
glitches. My scopes are quite basic, a Dataman 526 150 MHz USB scope
and a Philips PM3380 100 MHz "combiscope" that can be switched from
analogue to digital. My knowledge of their usage is pretty rudimentary
I am afraid, although I know the basics.
I also have an elderly HP scope a HP 54501A 100MHz 4 channel jobbie.
I suspect the old HP *MAY* be able to do this, but even with studying
the manual I am still unsure and if it *CAN* do this I would need
precise instructions as to how to set it up please!
I have never attempted to catch a *dropped* waveform, could anyone
suggest if any of these scopes are capable of showing what happens
during these glitches please? Thanks.
--
Best Regards,
Chris Wilson.
mailto: chris@...
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Re: Can I set up a 2.9 GHz (70904A) and 22 GHz (70905A) spectrum analyzer in 70004A display and 70001A mainframe?
The answer is...It Depends...
The real question I suspect you want answered is 'Can I have 2 (or more) RF front ends in the same SA in my 70000 MMS?'
There is nothing keeping you from having completely separate SA's in a 70000 system, but you would need a 70900 for each one of them, and they would be treated completely separately. I'd have to go play to see if you can have more than one RF section in a single SA, but I suspect it is a 'no'.
The SM{A,B,C} cables in the back are not as confusing as one might think, but keep a stash if you are re-arranging instruments. You eventually end up in a config where the last one is >?< too short. The cabling and addressing is laid out in the 70900{A/B} manual. Basically the signal path is 100MHz from the 70310->70900 (or 10MHz? from your external reference to the 70310 where it is multiplied up to 100MHz) , 300MHz from the 70900 to the RF section, video and IF loop from the RF through the various IF sections and to the 70900. Yo build a second SA, you might even need a separate 70310, but I'd have to look ! home.
You are right, they are heavy and hard to get to the back of. I have several of them, the one in my upstairs lab was set up once and isn't going anywhere for a god long time. The one in the basement lab gets moved around a bit, and as such is on a desk height rolling rack mount enclosure so I can rollit to the area it's needed most and I can get to the back of it when it needs re-configuring, which isn't often.
I purchased a 70001 full of power meters for a sane price a while back that were all labeled as 'faulty' because the chassis wan't hooked up to a controller so all the 'ERR' lights turned on. Anyone who needs a 70100, feel free to reach out. I keep meaning to list them on eBay, but never seem to remember.
I'm looking for a 70700, 70600, 70620/621, 70431, and 70301A if anyone happens upon any of them. :)
Bob
On Thu, Oct 11, 2018 at 3:20 PM Dr. David Kirkby from Kirkby Microwave Ltd < drkirkby@...> wrote: I have an HP 70000 series system consisting of the following parts
* 70004A colour display
* 70001A expansion mainframe
* 70900B local oscillator
* 70905A 22 GHz RF front end
* 70903A 100 kHz to 3 MHz IF section
* 70902A 10 Hz to 300 kHz IF section
* 70310A precision frequency reference
* 2 x 70100A power meters (one does not always zero)
* 70600A 0-22 GHz preselector (not installed, but I have it)
* 70700A digitizer
I just picked up a rather tatty expansion mainframe (70001A), with a few modules in it on eBay.
It has the following modules, only the first two of which I don't already have. * 70904A 100 Hz to 2.9 GHz RF front end - new to me
* 70621A? 100 kHz to 2.9 GHz preamplifier - new to me * 70310A precision frequency reference * 70902A 10 Hz to 300 kHz IF section * 70700A digitizer
I really only bought this for the 70904A 100 Hz to 2.9 GHz RF front end, and to a lesser extent the 70621A preampliifer but I can sell the other parts.
What I am unsure about is whether its possible to add these 3 modules
* 70904A 100 Hz to 2.9 GHz RF front end
* 70600A 0-22 GHz preselector
* 70621A? 100 kHz to 2.9 GHz preamplifier
into the one display/mainframe I already have. Can one have both a 2.9 Ghz and 22 GHz spectrum analyzers in the same system?
So I have 3 slots spare, and want to add
in 3 modules. Physically there's enough space, but I don't know if its
possible to have both the 2.9 GHz and the 22 GHz spectrum analyzer
modules in the same system.
I find the 70000 series quite a confusing system. My mate Paul, G8WYI set it up for me, with all these SMB cables on the rear. It is far from obvious to me where they all go, and thoughts of adding the preselector and another RF front end feel me with horror, as I really have no idea where all the cables need to go.
There are two other problems I have which do not help, but I am sure many people with 70000 series have these issues.
* I can't get to the back of the 70000 easily
* They weigh a ton.
-- Dr David Kirkby Ph.D C.Eng MIET
Kirkby Microwave Ltd
Registered office: Stokes Hall Lodge, Burnham Rd, Althorne, CHELMSFORD, Essex, CM3 6DT, United Kingdom.
Registered in England and Wales as company number 08914892
Tel 01621-680100 / +44 1621-680100
|
Re: Is it reasonable (or normal) to charge extra to calibrate an essential accessory supplied with an instrument?
On Thu, Oct 11, 2018 at 10:51 AM Dr. David Kirkby from Kirkby Microwave Ltd < drkirkby@...> wrote: Even Keysight (UK) can't supply uncertainties with the calibration of the 4285A. A calibration with uncertainties is available in the USA, but the cost is considerably higher than a standard (non-acredited, no uncertainties) Keysight calibration. I think I will settle with the standard calibration.
It has always surprised me a little how much more is charged for a calibration where they provide you with uncertainties and data. I expect in most cases they do the same work and measure the same data with the same equipment. They just charge you more to provide that data to you.
Where I used to work they had an in house cal lab and they would even notify you if some parameter was still in spec, but had drifted significantly from the last calibration. It was an avionics company and there was a risk that every unit tested after the previous calibration with a piece of test equipment that failed the latest calibration may have to be returned for retesting. Basically, the test equipment could have failed immediately after the previous calibration and every unit tested after that might be bad. Since we had the data from the test equipment calibration and the tested units, were were usually able to determine they were still OK.
Standard calibrations just tell you it met spec and they did not touch it.
Regards,
Mark
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Can I set up a 2.9 GHz (70904A) and 22 GHz (70905A) spectrum analyzer in 70004A display and 70001A mainframe?
Dr. David Kirkby from Kirkby Microwave Ltd
I have an HP 70000 series system consisting of the following parts
* 70004A colour display
* 70001A expansion mainframe
* 70900B local oscillator
* 70905A 22 GHz RF front end
* 70903A 100 kHz to 3 MHz IF section
* 70902A 10 Hz to 300 kHz IF section
* 70310A precision frequency reference
* 2 x 70100A power meters (one does not always zero)
* 70600A 0-22 GHz preselector (not installed, but I have it)
* 70700A digitizer
I just picked up a rather tatty expansion mainframe (70001A), with a few modules in it on eBay.
It has the following modules, only the first two of which I don't already have. * 70904A 100 Hz to 2.9 GHz RF front end - new to me
* 70621A? 100 kHz to 2.9 GHz preamplifier - new to me * 70310A precision frequency reference * 70902A 10 Hz to 300 kHz IF section * 70700A digitizer
I really only bought this for the 70904A 100 Hz to 2.9 GHz RF front end, and to a lesser extent the 70621A preampliifer but I can sell the other parts.
What I am unsure about is whether its possible to add these 3 modules
* 70904A 100 Hz to 2.9 GHz RF front end
* 70600A 0-22 GHz preselector
* 70621A? 100 kHz to 2.9 GHz preamplifier
into the one display/mainframe I already have. Can one have both a 2.9 Ghz and 22 GHz spectrum analyzers in the same system?
So I have 3 slots spare, and want to add
in 3 modules. Physically there's enough space, but I don't know if its
possible to have both the 2.9 GHz and the 22 GHz spectrum analyzer
modules in the same system.
I find the 70000 series quite a confusing system. My mate Paul, G8WYI set it up for me, with all these SMB cables on the rear. It is far from obvious to me where they all go, and thoughts of adding the preselector and another RF front end feel me with horror, as I really have no idea where all the cables need to go.
There are two other problems I have which do not help, but I am sure many people with 70000 series have these issues.
* I can't get to the back of the 70000 easily
* They weigh a ton.
-- Dr David Kirkby Ph.D C.Eng MIET
Kirkby Microwave Ltd
Registered office: Stokes Hall Lodge, Burnham Rd, Althorne, CHELMSFORD, Essex, CM3 6DT, United Kingdom.
Registered in England and Wales as company number 08914892
Tel 01621-680100 / +44 1621-680100
|
Re: HP8656/8657 Hum sidebands
On 10/11/2018 05:39 AM, alwyn.seeds1
wrote:
The close-in spectra of both my HP8656B and 8657B
signal generators show 100Hz and harmonics sidebands at levels of
-50 dBc, gradually falling away up to 3 kHz offset.
The 8657B, which is somewhat older than the 8656B shows these
sidebands at somewhat higher level. ?
I recall some posts on this forum about replacing electrolytic
capacitors in these signal generators.
What was the recommendation and are there particular capacitors I
should check?
Thanks, Alwyn?
_._,_._,_
If the sidebands are really 100 Hz, you must be in a European
country, where the AC power is 50 Hz. Generally this kind of problem
is poor power supply filtering, so the electrolytic caps off the
rectifier(s) are the ones to replace. I'm not familiar with these
signal generators, but if they are so old as to use vacuum tubes, it
could also be caused by a filament to cathode leak on one of them.
--doug, WA2SAY
|
Re: FS: AGILENT 33250A Function Generator AWG
Didn't know about that group.
Thanks.
On 2018-10-11 7:18 PM, Dr. David Kirkby
from Kirkby Microwave Ltd wrote:
toggle quoted message
Show quoted text
On Thu, 11 Oct 2018 at 16:39, 4X6MU via
Groups.Io <ilan_4x6mu= [email protected]>
wrote:
Hi,
I have for sale:
AGILENT 33250A Function Generator AWG
which is a group to buy/sell/swap test equipment.
Regards
Ilan Yacobi
4X6MU
ISRAEL
?
Dr David Kirkby Ph.D C.Eng MIET
Kirkby Microwave Ltd
Registered office: Stokes Hall Lodge, Burnham Rd,
Althorne, CHELMSFORD, Essex, CM3 6DT, United Kingdom.
Registered in England and Wales as company number
08914892
Tel 01621-680100 / +44 1621-680100
|
Re: Is it reasonable (or normal) to charge extra to calibrate an essential accessory supplied with an instrument?
Dr. David Kirkby from Kirkby Microwave Ltd
On Thu, 11 Oct 2018 at 17:56, Dave_G0WBX via Groups.Io <g8kbvdave= [email protected]> wrote:
The same applies with power meters.? If you send in a power meter with a
head and lead, they will be calibrated separately.?? My gripe is that
often they don't do a functional check after the cal', with the items
you send them.? (We¡¯ve had power meters returned that though the head
and body worked OK, the lead was damaged (after it left us to go to
them, so as a "system" it resulted in somewhat wayward un-callibrated
readings.)?? (That was not Keysight by the way.)
I see power meters as quite different, as they are not supplied with a sensor. You buy what sensor you want. I see this as quite different.
I will ask Keysight if they can give me a spec on the resistor.
I don't feel I want to argue too much over this, as I don't want to **** them off too much. Long term, that is probably not a good idea. With Pete and his ECal, it is a very different matter, but calibration of a resistor is a bit less of an issue.
?
We've also had digital readout instruments "Calibrated" against what we
know to be "moving coil meter" display instruments, and not even types
with a mirror scale!? (Again, not Keysight.)
? Yes, I have seen similar. Recently someone was selling a calibrated 26.5 GHz 3.5 mm 85053B verification kit. Now I know those things can't be calibrated by joe public, so I asked how it was calibrated. To cut a long story short, this was calibrated using an 85032B 6 GHz N calibration kit!
goldenrubi is an eBay seller that claims stuff he sells is calibrated, but if you send him a few messages, you realise he is an idiot.
The whole "Calibration Industry" is a bit of a farce, sadly.?? My
personal view.
? I know someone, who personally I would not trust to check a handheld DVM, that was recently working in Intel, "calibrating" 23 GHz Tektronix scopes and bit error rate testers!? The guy is a complete moron.
I recently had a UK company write to me about their calibration services which was "UKAS traceable". Now I know what traceable to a standards lab is (NIST, NPL etc), and I know what UKAS acreddited means, but "UKAS traceable" is a new one on me.
This is a good one. An "acreddited" cal lab in Mexico
They are acreddited to measure frequency from 1 Hz to 40 MHz to 0.05%. The instrument they use is a 3458A, which is rated to measure frequency up to 10 MHz!!!
Even Keysight (UK) can't supply uncertainties with the calibration of the 4285A. A calibration with uncertainties is available in the USA, but the cost is considerably higher than a standard (non-acredited, no uncertainties) Keysight calibration. I think I will settle with the standard calibration. It will fullfil my main aim, which is to determine if this instrument works properly, before I have lost the chance to send it back to the seller and say it is faulty.
Regards.
Dave B (G0WBX)
Dave, G8WRB -- Dr David Kirkby Ph.D C.Eng MIET
Kirkby Microwave Ltd
Registered office: Stokes Hall Lodge, Burnham Rd, Althorne, CHELMSFORD, Essex, CM3 6DT, United Kingdom.
Registered in England and Wales as company number 08914892
Tel 01621-680100 / +44 1621-680100
|
It certainly is a cute little YTO.?
Anyone here have an old parts carcass 8590A?
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On Oct 11, 2018, at 12:44 PM, pianovt via Groups.Io < pianovt@...> wrote: Peter, that YTO was used in the first generation of the 8590A spectrum analyzers. Those were the ones with a free-running 1st LO. The YTO was not made by HP; it was purchased from a company called Microsource which is no longer making that sort of stuff (I think they were purchased by Gigatronics).
The YTO was 1 inch on the side ("1" cube"). It was a low cost design. I don't often see used ones around. Anyway, if you know someone who has an old 8590A parts box, that's the place to get it.
Vladan
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Re: Is it reasonable (or normal) to charge extra to calibrate an essential accessory supplied with an instrument?
Sadly David.
Perfectly reasonable.? As it takes time and resources to do that, hence
runs up costs.
They probably have their own known good "standard" resistors (etc) that
they use to cal'/verify users (and their) instruments.
But to "calibrate" (in truth verify and record) your part, as above it
takes time and resources, said resources are likely to be better
precision devices than your instrument too, then as a transfer standard,
the "Calibration" should be meaningful.
The fact that it is a "standard accessory" is neither hear or their.??
If it was a built in part, then yes, they should verify it as part of
the main instrument cal', but not if it's a separate physical entity
probably with its own identity (serial number or some-such.)
The same applies with power meters.? If you send in a power meter with a
head and lead, they will be calibrated separately.?? My gripe is that
often they don't do a functional check after the cal', with the items
you send them.? (We¡¯ve had power meters returned that though the head
and body worked OK, the lead was damaged (after it left us to go to
them, so as a "system" it resulted in somewhat wayward un-callibrated
readings.)?? (That was not Keysight by the way.)
We've also had digital readout instruments "Calibrated" against what we
know to be "moving coil meter" display instruments, and not even types
with a mirror scale!? (Again, not Keysight.)
The whole "Calibration Industry" is a bit of a farce, sadly.?? My
personal view.
Regards.
Dave B (G0WBX)
--
Created on and sent from a Unix like PC running and using free and open source software.
::
|
Peter, that YTO was used in the first generation of the 8590A spectrum analyzers. Those were the ones with a free-running 1st LO. The YTO was not made by HP; it was purchased from a company called Microsource which is no longer making that sort of stuff (I think they were purchased by Gigatronics).
The YTO was 1 inch on the side ("1" cube"). It was a low cost design. I don't often see used ones around. Anyway, if you know someone who has an old 8590A parts box, that's the place to get it.
Vladan
|
Re: Is it reasonable (or normal) to charge extra to calibrate an essential accessory supplied with an instrument?
The squeaky wheel gets the oil, at least at companies that care about their customers.?
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On Oct 11, 2018, at 12:34 PM, Pete Manfre < pmanfre@...> wrote: How about this.? ?I have a service contract on my eCal.? ?Six months into the 1 yr. Contract I could no longer read it.? ?So I sent it in for repair.? ?They said that unit should not have been given a contract since it was no longer supported.? ?But they said they would be nice and refund the contract cost.? ?I escallated it and? finally they agreed to replaced it with the new model no charge.? ? Moral of the story¡ complain Doc!? ?It was sold with the unit as part of it!?
Pete wa2odo? On Thu, Oct 11, 2018, 12:08 PM Dr. David Kirkby from Kirkby Microwave Ltd < drkirkby@...> wrote: There could be a case for treating it separately, if, once calibrated , it could be used with other 4285A instruments, so would need a separate cal certificate. At least administratively I think that would be the case.
The resistor could be used with any 4285A. There's no S/N on the resistor, so its not in any way tied to a particular instrument. But every other 4285A should have its resistor too - that said, many 4285As on eBay are sold without the resistor.
Dave
--
Dr David Kirkby Ph.D C.Eng MIET
Kirkby Microwave Ltd
Registered office: Stokes Hall Lodge, Burnham Rd, Althorne, CHELMSFORD, Essex, CM3 6DT, United Kingdom.
Registered in England and Wales as company number 08914892
Tel 01621-680100 / +44 1621-680100
|
Re: Is it reasonable (or normal) to charge extra to calibrate an essential accessory supplied with an instrument?
How about this.? ?I have a service contract on my eCal.? ?Six months into the 1 yr. Contract I could no longer read it.? ?So I sent it in for repair.? ?They said that unit should not have been given a contract since it was no longer supported.? ?But they said they would be nice and refund the contract cost.? ?I escallated it and? finally they agreed to replaced it with the new model no charge.? ? Moral of the story¡ complain Doc!? ?It was sold with the unit as part of it!?
Pete wa2odo?
On Thu, Oct 11, 2018, 12:08 PM Dr. David Kirkby from Kirkby Microwave Ltd < drkirkby@...> wrote: There could be a case for treating it separately, if, once calibrated , it could be used with other 4285A instruments, so would need a separate cal certificate. At least administratively I think that would be the case.
The resistor could be used with any 4285A. There's no S/N on the resistor, so its not in any way tied to a particular instrument. But every other 4285A should have its resistor too - that said, many 4285As on eBay are sold without the resistor.
Dave
--
Dr David Kirkby Ph.D C.Eng MIET
Kirkby Microwave Ltd
Registered office: Stokes Hall Lodge, Burnham Rd, Althorne, CHELMSFORD, Essex, CM3 6DT, United Kingdom.
Registered in England and Wales as company number 08914892
Tel 01621-680100 / +44 1621-680100
|
Re: FS: AGILENT 33250A Function Generator AWG
Dr. David Kirkby from Kirkby Microwave Ltd
On Thu, 11 Oct 2018 at 16:39, 4X6MU via Groups.Io <ilan_4x6mu= [email protected]> wrote: Hi,
I have for sale: AGILENT 33250A Function Generator AWG
which is a group to buy/sell/swap test equipment.
RegardsIlan Yacobi
4X6MU ISRAEL
? Dr David Kirkby Ph.D C.Eng MIET
Kirkby Microwave Ltd
Registered office: Stokes Hall Lodge, Burnham Rd, Althorne, CHELMSFORD, Essex, CM3 6DT, United Kingdom.
Registered in England and Wales as company number 08914892
Tel 01621-680100 / +44 1621-680100
|
Re: HP 141T sn:1850A 16959, hp: 8556A sn: 1907A 04190 and hp 8552B sn:1841B sn:1841A15130
Just saved the 141T from the dumpster,
That is quite a dumpster find! Wish I had such luck.... Craig
|
Re: Is it reasonable (or normal) to charge extra to calibrate an essential accessory supplied with an instrument?
Dr. David Kirkby from Kirkby Microwave Ltd
There could be a case for treating it separately, if, once calibrated , it could be used with other 4285A instruments, so would need a separate cal certificate. At least administratively I think that would be the case.
The resistor could be used with any 4285A. There's no S/N on the resistor, so its not in any way tied to a particular instrument. But every other 4285A should have its resistor too - that said, many 4285As on eBay are sold without the resistor.
Dave
--
Dr David Kirkby Ph.D C.Eng MIET
Kirkby Microwave Ltd
Registered office: Stokes Hall Lodge, Burnham Rd, Althorne, CHELMSFORD, Essex, CM3 6DT, United Kingdom.
Registered in England and Wales as company number 08914892
Tel 01621-680100 / +44 1621-680100
|
Re: HP 141T sn:1850A 16959, hp: 8556A sn: 1907A 04190 and hp 8552B sn:1841B sn:1841A15130
Can¡¯t give the location, they are still throwing stuff out. :-)
On Thursday, October 11, 2018, 10:48 AM, Daniel Koller via Groups.Io <kaboomdk@...> wrote:
Ok, this begs the questions:? Where?? What dumpster?? We can't help you until you tell us exactly where this dumpster is!? ;)
And there are places that still throw things in dumpsters?? Every source I have ever acquired stuff from in the past has long since switched to "property management" for disposal.? I haven't had a cool dumpster find in 20 years.
? Dan
On Wednesday, October 10, 2018, 8:22:35 PM EDT, George Fridrich via Groups.Io <george.fridrich@...> wrote:
Just saved the 141T from the dumpster, powered unit up and got no initial signal on Scope, found 1/4 amp fuse open, put fuse in, brought unit up without modules in and fuse did not blow, inspected both 855 units, found 8552B had a burnt component smell, removed A7 board and found R7 burned badly! ?Q2,3,4,6,712 & 18 ?open ( not working). I down loaded some manuals, I want to check voltages before repairing the board, not sure where the voltage test points are on the 141T, drawings are not very good. I would like to find replacement transistors & were to find R7 131ohm 1% resistor 1/8 watt. I would like to bring it back to life, it is so well made, a work of art! Any help would be appreciated.
|
FS: AGILENT 33250A Function Generator AWG
Hi,
I have for sale: AGILENT 33250A Function Generator AWG
Condition: Working excellent Price: 1800$ or best offer. Payment: paypal after inspection
Please contact me direct off the list.
Regards Ilan Yacobi
4X6MU ISRAEL
email: ilan_4x6mu@...
|
Re: Is it reasonable (or normal) to charge extra to calibrate an essential accessory supplied with an instrument?
There could be a case for treating it separately, if, once calibrated , it could be used with other 4285A instruments, so would need a separate cal certificate. At least administratively I think that would be the case. ?
toggle quoted message
Show quoted text
From: [email protected] [mailto:[email protected]] On Behalf Of Dr. David Kirkby from Kirkby Microwave Ltd
Sent: Thursday, October 11, 2018 11:10 AM
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] Is it reasonable (or normal) to charge extra to calibrate an essential accessory supplied with an instrument?? Never seen a clear policy on that. My feeling is if it¡¯s essential to the operation of the Instrument, it should be included in the Instrument Calibration. If it¡¯s an optional accessory then it should be separate.
That's my opinion too, but Keysight want extra to calibrate it. Looking on the find-a-part website, the resistor is only used with the 4285A. I really can't see any justification for charging extra to calibrate the resistor.?
|
Re: Is it reasonable (or normal) to charge extra to calibrate an essential accessory supplied with an instrument?
Dr. David Kirkby from Kirkby Microwave Ltd
Never seen a clear policy on that. My feeling is if it¡¯s essential to the operation of the Instrument, it should be included in the Instrument Calibration. If it¡¯s an optional accessory then it should be separate.
That's my opinion too, but Keysight want extra to calibrate it.
Looking on the find-a-part website, the resistor is only used with the 4285A. I really can't see any justification for charging extra to calibrate the resistor.?
Dave.?
Dave.?
|
bownes
