On 8. Jan 2022, at 05:40, Dave McGuire <mcguire@...> wrote:

AS / ISO 1000:1998 is the standard for display of SI units. It says there should be a single space between the numeral and the unit-cum-multiplier.

Is that a current standard?

No.

See — the ISO/IEC 80000 series has replaced most earlier standards in this space (quantities and units).

But the rule stands.

ISO 80000-1:2009 Section 7.1.4 has this to say:

7.1.4 Expressions for quantities

The symbol of the unit shall be placed after the numerical value in the expression for a quantity, leaving a space between the numerical value and the unit symbol. It should be noted that this rule also applies to the units per cent, % and per mil, ‰. It should also be noted that, in accordance with this rule, the symbol °C for the degree Celsius shall be preceded by a space when expressing a Celsius temperature.

The only exceptions to this rule are for the units degree, minute and second for plane angle, in which case there shall be no space between the numerical value and the unit symbol.

Can’t provide a link, because hides most of the document until you pay for it.
(Most of ISO/IEC 80000 actually is accessible there because it is in the definitions sections, which are not behind the paywall. But not this rule.)

If you don’t want to buy tons of ISO standards, the basics of units and quantities for electrotechnical work have been written up by Rohde and Schwarz (who used to be the distributor of HP equipment in Germany a few decades ago, but mostly peddles their own instruments right now).
I found this document, of all places, in their career section; apparently you are supposed to be able to read, write, calculate, and clearly express your units if you want to work there:



If you don’t trust URL shorteners, here is the full link:



Mandatory reading.
(The specific rule that there is a space between the number and the unit is so ingrained that isn’t even spelled out as such here, but is consistently used in the examples.)

(I don’t like all these rules, just like I don’t always like English spelling very much :-)
But it is the standard… So I don’t meik ahp mai oun ruulz.)

Grü?e, Carsten

Hello Dave,
That standard has been in existence for over 60 years. In fact, I started teaching it in 1968. There may be a later version, but I can't find it. That particular way of displaying scientific terms is also referenced in many texts on writing technical and commercial documents. Just look at any recent Style Manual for any language.
A clear advantage of the space is that it prevents messing up the meaning, particularly when the multipliers are lower case.
73 de Brian, VK2GCE

开云体育

On 1/7/22 9:39 PM, Brian wrote:

AS / ISO 1000:1998 is the standard for display of SI units. It says there should be a single space between the numeral and the unit-cum-multiplier.

Is that a current standard?

Damn. It'll be a hard habit to break; I never use a space.

-Dave

--
Dave McGuire, AK4HZ
New Kensington, PA

AS / ISO 1000:1998 is the standard for display of SI units. It says there should be a single space between the numeral and the unit-cum-multiplier.
73 de Brian, VK2GCE

On 1/7/22 5:58 PM, Chris B wrote:

> policing the uploads to make sure no Artek manuals show up
Shouldn't have any problem from people who read the guidelines but I expect some people may disregard that. Maybe add a reminder on the Upload page ?

I'd rather not modify that, as then it will go away when I update the software. There's already a mention of it on the Contribution Guidelines page.

Unrelated: why do MHz and GHz suffixes show up underlined with a tooltip ? I would imagine the target audience for such a wiki has a pretty good grasp of SI prefixes P )

That's a default behavior of DokuWiki. I've disabled it.

> Yeah, I have a 4195A too, I thought about it for a minute last summer
and decided against doing that page
Heh, I got one started with basic info:

Feel free to reorganize/improve - I took care of most of the boring specs (I hope), didn't get to the good stuff yet. Might come back to it in a few days.

Very nice work. My only suggestion after a quick skim is to try to be more consistent about whether or not units are preceded by a space. And, remember, that page needs to be referenced in the start page and in the model number index, when you feel it is ready.

-Dave

--
Dave McGuire, AK4HZ
New Kensington, PA

> policing the uploads to make sure no Artek manuals show up

Shouldn't have any problem from people who read the guidelines but I expect some people may disregard that. Maybe add a reminder on the Upload page ?

Unrelated: why do MHz and GHz suffixes show up underlined with a tooltip ? I would imagine the target audience for such a wiki has a pretty good grasp of SI prefixes P )

> Yeah, I have a 4195A too, I thought about it for a minute last summer and decided against doing that page

Heh, I got one started with basic info:
https://hpwiki.mcguirescientificservices.com/4195a_network_spectrum_analyzer

Feel free to reorganize/improve - I took care of most of the boring specs (I hope), didn't get to the good stuff yet. Might come back to it in a few days.

开云体育

On Thursday 06 January 2022 09:58:48 pm saipan59 (Pete) wrote:

Per Dave's guidelines, I've only uploaded manuals that do NOT have a 'mark' saying where they were downloaded from.

Oh yeah. I *hate* that! I have a whole mess of datasheets on my web site, but I refuse to upload any with that sort of nonsense in there...

I call 'em "branded", as in what they used to do with cattle.

--
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space, ?a critter that can
be killed but can't be tamed. ?--Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James
M Dakin

Hello Christopher,

Checking the spare parts - I've such a HP10544A Oscillator (working
condition).
For further details (i.e. shipping) may you contact me via pm, please?

Best regards,

Stephan

--
Your sincerely,

Dr.-Ing. Stephan Massner

All,

I bought an hp 5340A counter due to be thrown away that when I received it, had its oscillator pirated. It seems it (A18) and 05340-60089 (A3) have been removed. Would anyone have these parts so I can get the counter up and running?

Thanks in advance.

Christopher Tucker

Hi Mike,

Great news, I for one would be interested in details of your solution.

Peter

On Thu, Jan 6, 2022 at 06:35 PM, Dave McGuire wrote:

Yes, there has been a huge flurry of activity since it was discussed here recently. That's been really nice to see.

You're welcome, HaHa! I've created/updated a bunch (20-something) of pages in the past week or so.
I'm probably 'done' for the moment - just 4 more units that I could maybe add, but they're in the very cold garage...
In most cases, I've only entered basic info that was "close at hand": the most basic specs, a photo, and an intro date. In a lot of the intro dates, I show (for example) "c.1984" based on the earliest copyright date seen in the manual.
So, hopefully I've created a good framework that can be built on in the future.
Per Dave's guidelines, I've only uploaded manuals that do NOT have a 'mark' saying where they were downloaded from.

Pete

I have two Q meters (HF and VHF) and an RX meter for sale in Los Angeles.? Boat anchors, expensive to ship.

All in excellent condition with original or copy manuals.? Everything works.

The Q meters are dark gray, Boonton style, but the RX meter is more recent with HP gray and HP knobs.

Make reasonable offer, any or all.

Bob

On 1/6/22 5:27 PM, Chris B wrote:

Cool, a lot of new content on hpwiki since the last time I visited.

Yes, there has been a huge flurry of activity since it was discussed here recently. That's been really nice to see.

I added the 3478a and 8643a pages but didn't get to the 4195 which I find a bit daunting. Plus, there's no VNA category yet.

Yeah, I have a 4195A too, I thought about it for a minute last summer and decided against doing that page, at least until I have like a whole day to spend on it. ;)

But, feel free to add categories. Use the mailing list to propose changes or additions, though, if you're not sure about something.

Is there a way to get the changelog for individual pages ? Looks like the "Recent Changes" page aggregates the entire wiki...

I haven't bothered with any changelog stuff. If it's just that the "Recent Changes" page looks huge, it may be because there have been a huge number of additions in the past week. If it's everything, then I'll need to take a look at it.

Also, I've been a bit reluctant to upload all the manuals & firmware I have - it's a lot of big files, already available at ko4bb/ keysight/ bitsavers etc.
@D. Mcguire : I'm happy to upload them but wanted to hear your preference first . A few 100MB may not be a problem today but if the wiki picks up in traffic you may feel otherwise...

There are no bandwidth or storage problems here; this isn't a "home" network.

But one thing's for sure, I don't want to find myself in the position of policing the uploads to make sure no Artek manuals show up in there, etc.

At last count, my ~/Documentation/HP directory was sitting at about 16GB.

-Dave

--
Dave McGuire, AK4HZ
New Kensington, PA

The Op manual is an HP original printing, the Service manual is a repro with a CD of the schematics in pdf. The binder in the Op manual has broken away from the outer cover.
See pictures
$15 for both, plus USPS Medial Mail shipping.

Both are original HP printing, in one binder.
$15 plus USPS Media Mail

Cool, a lot of new content on hpwiki since the last time I visited. I added the 3478a and 8643a pages but didn't get to the 4195 which I find a bit daunting. Plus, there's no VNA category yet.

Is there a way to get the changelog for individual pages ? Looks like the "Recent Changes" page aggregates the entire wiki...

Also, I've been a bit reluctant to upload all the manuals & firmware I have - it's a lot of big files, already available at ko4bb/ keysight/ bitsavers etc.
@D. Mcguire : I'm happy to upload them but wanted to hear your preference first . A few 100MB may not be a problem today but if the wiki picks up in traffic you may feel otherwise...