开云体育

Keypad for 70820A module


 

If anyone has a keypad that goes with a HP 70820A module I am interested in obtaining one. ?Picked up a 70004A mainframe with a 70820A module but the keypad is for another module. ?
Mute good news as the module passes self test. ?Now I just have to figure out how to use the microwave transition analyzer does but it look interesting. ?
Thanks?
Dave VE7HR?


 

开云体育

Hi Dave

?

Welcome aboard to the HP 70000? users? ??there is a 70000 user group

Firstly you will require 2 adapters as the input connectors are 2.4 and are not comparable with

Possibly your standard connectors ( noting? SMA / 3.4 / 2.9 MM connectors are all interchangeable )

?

I also have a 70820? and I am currently looking for a mating RF signal generator to work with it

A list of the mating sig generators are in one of the menus on the 70820

?

Best of luck Paul


From: [email protected] [mailto:[email protected]] On Behalf Of Dave Miller
Sent: 16 April 2019 05:01
To: [email protected]
Subject: [HP-Agilent-Keysight-equipment] Keypad for 70820A module

?

If anyone has a keypad that goes with a HP 70820A module I am interested in obtaining one. ?Picked up a 70004A mainframe with a 70820A module but the keypad is for another module. ?
Mute good news as the module passes self test. ?Now I just have to figure out how to use the microwave transition analyzer does but it look interesting. ?
Thanks?
Dave VE7HR?

No virus found in this message.
Checked by AVG -
Version: 2016.0.8048 / Virus Database: 4793/15884 - Release Date: 08/14/18
Internal Virus Database is out of date.


 

开云体育

Hi Paul,
Where do I find this users group?

Mine has the adapters. ?:-)

I have a a few pieces of the MMS system that I use on a regular basic. And almost enough for another basic low frequency setup. ?:-). ?

As for signal generators I have a 8672A which happens to be on the list. ?

So life is good. ?

Thanks for the information Paul?

Dave



On Apr 16, 2019, at 12:56 AM, Paul Bicknell <paul@...> wrote:

Hi Dave

?

Welcome aboard to the HP 70000? users? ??there is a 70000 user group

Firstly you will require 2 adapters as the input connectors are 2.4 and are not comparable with

Possibly your standard connectors ( noting? SMA / 3.4 / 2.9 MM connectors are all interchangeable )

?

I also have a 70820? and I am currently looking for a mating RF signal generator to work with it

A list of the mating sig generators are in one of the menus on the 70820

?

Best of luck Paul


From: [email protected] [mailto:[email protected]] On Behalf Of Dave Miller
Sent: 16 April 2019 05:01
To: [email protected]
Subject: [HP-Agilent-Keysight-equipment] Keypad for 70820A module

?

If anyone has a keypad that goes with a HP 70820A module I am interested in obtaining one. ?Picked up a 70004A mainframe with a 70820A module but the keypad is for another module. ?
Mute good news as the module passes self test. ?Now I just have to figure out how to use the microwave transition analyzer does but it look interesting. ?
Thanks?
Dave VE7HR?

No virus found in this message.
Checked by AVG -
Version: 2016.0.8048 / Virus Database: 4793/15884 - Release Date: 08/14/18
Internal Virus Database is out of date.


 

开云体育


You can use a number of other sig gens with the 70820 by putting their command string in the custom entry option.?

Bob

On Apr 16, 2019, at 08:39, Dave Miller <ve7hr@...> wrote:

Hi Paul,
Where do I find this users group?

Mine has the adapters. ?:-)

I have a a few pieces of the MMS system that I use on a regular basic. And almost enough for another basic low frequency setup. ?:-). ?

As for signal generators I have a 8672A which happens to be on the list. ?

So life is good. ?

Thanks for the information Paul?

Dave



On Apr 16, 2019, at 12:56 AM, Paul Bicknell <paul@...> wrote:

Hi Dave

?

Welcome aboard to the HP 70000? users? ??there is a 70000 user group

Firstly you will require 2 adapters as the input connectors are 2.4 and are not comparable with

Possibly your standard connectors ( noting? SMA / 3.4 / 2.9 MM connectors are all interchangeable )

?

I also have a 70820? and I am currently looking for a mating RF signal generator to work with it

A list of the mating sig generators are in one of the menus on the 70820

?

Best of luck Paul


From: [email protected] [mailto:[email protected]] On Behalf Of Dave Miller
Sent: 16 April 2019 05:01
To: [email protected]
Subject: [HP-Agilent-Keysight-equipment] Keypad for 70820A module

?

If anyone has a keypad that goes with a HP 70820A module I am interested in obtaining one. ?Picked up a 70004A mainframe with a 70820A module but the keypad is for another module. ?
Mute good news as the module passes self test. ?Now I just have to figure out how to use the microwave transition analyzer does but it look interesting. ?
Thanks?
Dave VE7HR?

No virus found in this message.
Checked by AVG -
Version: 2016.0.8048 / Virus Database: 4793/15884 - Release Date: 08/14/18
Internal Virus Database is out of date.


 

I have the same rig, more or less - it didn't have the keypad. I think you can do without it and control everything from the screen menus, while the keypad allows for shortcuts to the basic functions, or to operate it with various programs - or maybe not. Anyway, as I recall, I could run it just fine.

I think the keypads for the various uses are all the same inside, with the difference being the button labels. I later acquired a keypad for a different type unit, but have not tried it to see what happens. I think you could probably use the one you have, and just figure out what the button functions should be.

Unless you're going to need its full 40-50 GHz capability, it's best to just adapt the inputs to SMA-compatible types. I bought some short (12") cable type adapters, which were much cheaper than the ideal, simple straight-through barrel types. I made a little box that mounts onto the input connectors, with the cables inside, and SMAs on the right side, to make it less obtrusive in the front.

Ed


 

On 4/16/19 1:31 PM, Ed Breya via Groups.Io wrote:
I have the same rig, more or less - it didn't have the keypad. I think
you can do without it and control everything from the screen menus,
while the keypad allows for shortcuts to the basic functions, or to
operate it with various programs - or maybe not. Anyway, as I recall, I
could run it just fine.
This is correct; you don't need the module-specific keypad to do
anything on any 70K series instrument.

I have a bunch of 70K stuff running from one display, and I just have
the blank keypad. Works fine.

I think the keypads for the various uses are all the same inside, with
the difference being the button labels. I later acquired a keypad for a
different type unit, but have not tried it to see what happens. I think
you could probably use the one you have, and just figure out what the
button functions should be.
Some of the keypad inserts use double-width buttons I think, but all
they are are plungers that press the key mechanisms underneath.

-Dave

--
Dave McGuire, AK4HZ
New Kensington, PA


 

Thanks Dave,
Yes I am aware that you don't need the keyboard to control things with out but it seems easier to do.
And I like to find all the bits is possible.

I will try out the keyboard that I have. There are so few details on the.
Thanks everyone for the answers

Dave
VE7HR
Surrey BC


On Tue, Apr 16, 2019 at 10:35 AM Dave McGuire <mcguire@...> wrote:
On 4/16/19 1:31 PM, Ed Breya via Groups.Io wrote:
> I have the same rig, more or less - it didn't have the keypad. I think
> you can do without it and control everything from the screen menus,
> while the keypad allows for shortcuts to the basic functions, or to
> operate it with various programs - or maybe not. Anyway, as I recall, I
> could run it just fine.

? This is correct; you don't need the module-specific keypad to do
anything on any 70K series instrument.

? I have a bunch of 70K stuff running from one display, and I just have
the blank keypad.? Works fine.

> I think the keypads for the various uses are all the same inside, with
> the difference being the button labels. I later acquired a keypad for a
> different type unit, but have not tried it to see what happens. I think
> you could probably use the one you have, and just figure out what the
> button functions should be.

? Some of the keypad inserts use double-width buttons I think, but all
they are are plungers that press the key mechanisms underneath.

? ? ? ? ? ? ? ? ?-Dave

--
Dave McGuire, AK4HZ
New Kensington, PA





--
72 de Dave
VE7HR


 

开云体育

Hi Ed? are you saying the 70820 will work at? 50 Ghz ?

?


From: [email protected] [mailto:[email protected]] On Behalf Of Ed Breya via Groups.Io
Sent: 16 April 2019 18:32
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] Keypad for 70820A module

?

I have the same rig, more or less - it didn't have the keypad. I think you can do without it and control everything from the screen menus, while the keypad allows for shortcuts to the basic functions, or to operate it with various programs - or maybe not. Anyway, as I recall, I could run it just fine.

I think the keypads for the various uses are all the same inside, with the difference being the button labels. I later acquired a keypad for a different type unit, but have not tried it to see what happens. I think you could probably use the one you have, and just figure out what the button functions should be.

Unless you're going to need its full 40-50 GHz capability, it's best to just adapt the inputs to SMA-compatible types. I bought some short (12") cable type adapters, which were much cheaper than the ideal, simple straight-through barrel types. I made a little box that mounts onto the input connectors, with the cables inside, and SMAs on the right side, to make it less obtrusive in the front.

Ed

No virus found in this message.
Checked by AVG -
Version: 2016.0.8048 / Virus Database: 4793/15884 - Release Date: 08/14/18
Internal Virus Database is out of date.


 

开云体育

Hi Dave

?

I think there are about? 10 of us that are after the key pad for the 70820

?

The keyboard is a different thing and we have hade grate misunderstandings in the past? the keyboard for the? 70000 system is a? PC type keyboard with a HP-HPIL connector on it and goes into the HP-HPIL socket on the 70004

?

Paul B

?


From: [email protected] [mailto:[email protected]] On Behalf Of Dave Miller
Sent: 16 April 2019 18:44
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] Keypad for 70820A module

?

Thanks Dave,

Yes I am aware that you don't need the keyboard to control things with out but it seems easier to do.

And I like to find all the bits is possible.

?

I will try out the keyboard that I have. There are so few details on the.

Thanks everyone for the answers

?

Dave

VE7HR

Surrey BC

?

?

On Tue, Apr 16, 2019 at 10:35 AM Dave McGuire <mcguire@...> wrote:

On 4/16/19 1:31 PM, Ed Breya via Groups.Io wrote:
> I have the same rig, more or less - it didn't have the keypad. I think
> you can do without it and control everything from the screen menus,
> while the keypad allows for shortcuts to the basic functions, or to
> operate it with various programs - or maybe not. Anyway, as I recall, I
> could run it just fine.

? This is correct; you don't need the module-specific keypad to do
anything on any 70K series instrument.

? I have a bunch of 70K stuff running from one display, and I just have
the blank keypad.? Works fine.

> I think the keypads for the various uses are all the same inside, with
> the difference being the button labels. I later acquired a keypad for a
> different type unit, but have not tried it to see what happens. I think
> you could probably use the one you have, and just figure out what the
> button functions should be.

? Some of the keypad inserts use double-width buttons I think, but all
they are are plungers that press the key mechanisms underneath.

? ? ? ? ? ? ? ? ?-Dave

--
Dave McGuire, AK4HZ
New Kensington, PA




--

72 de Dave

VE7HR

No virus found in this message.
Checked by AVG -
Version: 2016.0.8048 / Virus Database: 4793/15884 - Release Date: 08/14/18
Internal Virus Database is out of date.


 

On April 16, 2019 4:34:23 PM "Paul Bicknell" <paul@...> wrote:
I think there are about 10 of us that are after the key pad for the 70820


The keyboard is a different thing and we have hade grate misunderstandings
in the past the keyboard for the 70000 system is a PC type keyboard with
a HP-HPIL connector on it and goes into the HP-HPIL socket on the 70004
HP-HIL, not HP-HPIL. HP Human Interface Loop. (for those searching)

-Dave

--
Dave McGuire, AK4HZ
New Kensington, PA


 

开云体育

Hi Dave the other? group is

?

hp_70000@...

?


From: [email protected] [mailto:[email protected]] On Behalf Of Dave Miller
Sent: 16 April 2019 13:40
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] Keypad for 70820A module

?

Hi Paul,

Where do I find this users group?

?

Mine has the adapters. ?:-)

?

I have a a few pieces of the MMS system that I use on a regular basic. And almost enough for another basic low frequency setup. ?:-). ?

?

As for signal generators I have a 8672A which happens to be on the list. ?

?

So life is good. ?

?

Thanks for the information Paul?

?

Dave

?

?


On Apr 16, 2019, at 12:56 AM, Paul Bicknell <paul@...> wrote:

Hi Dave

?

Welcome aboard to the HP 70000? users? ??there is a 70000 user group

Firstly you will require 2 adapters as the input connectors are 2.4 and are not comparable with

Possibly your standard connectors ( noting? SMA / 3.4 / 2.9 MM connectors are all interchangeable )

?

I also have a 70820? and I am currently looking for a mating RF signal generator to work with it

A list of the mating sig generators are in one of the menus on the 70820

?

Best of luck Paul


From: [email protected] [mailto:[email protected]] On Behalf Of Dave Miller
Sent: 16 April 2019 05:01
To: [email protected]
Subject: [HP-Agilent-Keysight-equipment] Keypad for 70820A module

?

If anyone has a keypad that goes with a HP 70820A module I am interested in obtaining one. ?Picked up a 70004A mainframe with a 70820A module but the keypad is for another module. ?
Mute good news as the module passes self test. ?Now I just have to figure out how to use the microwave transition analyzer does but it look interesting. ?
Thanks?
Dave VE7HR?

No virus found in this message.
Checked by AVG -
Version: 2016.0.8048 / Virus Database: 4793/15884 - Release Date: 08/14/18
Internal Virus Database is out of date.

No virus found in this message.
Checked by AVG -
Version: 2016.0.8048 / Virus Database: 4793/15884 - Release Date: 08/14/18
Internal Virus Database is out of date.


 

Hi all Dave is correct a typo by me should be HP HIL

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Dave McGuire
Sent: 16 April 2019 21:37
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] Keypad for 70820A module

On April 16, 2019 4:34:23 PM "Paul Bicknell" <paul@...> wrote:
I think there are about 10 of us that are after the key pad for the 70820


The keyboard is a different thing and we have hade grate misunderstandings
in the past the keyboard for the 70000 system is a PC type keyboard
with
a HP-HPIL connector on it and goes into the HP-HPIL socket on the 70004
HP-HIL, not HP-HPIL. HP Human Interface Loop. (for those searching)

-Dave

--
Dave McGuire, AK4HZ
New Kensington, PA


 

Not trying to nitpick, I just didn't want someone to start searching for the wrong thing.

-Dave

On April 16, 2019 4:44:37 PM "Paul Bicknell" <paul@...> wrote:

Hi all Dave is correct a typo by me should be HP HIL


-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Dave McGuire
Sent: 16 April 2019 21:37
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] Keypad for 70820A module

On April 16, 2019 4:34:23 PM "Paul Bicknell" <paul@...> wrote:
I think there are about 10 of us that are after the key pad for the 70820


The keyboard is a different thing and we have hade grate misunderstandings
in the past the keyboard for the 70000 system is a PC type keyboard
with
a HP-HPIL connector on it and goes into the HP-HPIL socket on the 70004
HP-HIL, not HP-HPIL. HP Human Interface Loop. (for those searching)

-Dave

--
Dave McGuire, AK4HZ
New Kensington, PA





--
Dave McGuire, AK4HZ
New Kensington, PA


 

Hi Dave All OK with Me for you to point out any mistakes just a typo but
glad you corrected it for me

Hence me stating the difference between a keypad and a key board
I don not want another range war as people got very upset the last time and
we nearly had blood spilt best just move on

-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Dave McGuire
Sent: 16 April 2019 21:59
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] Keypad for 70820A module


Not trying to nitpick, I just didn't want someone to start searching for
the wrong thing.

-Dave

On April 16, 2019 4:44:37 PM "Paul Bicknell" <paul@...> wrote:

Hi all Dave is correct a typo by me should be HP HIL


-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Dave McGuire
Sent: 16 April 2019 21:37
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] Keypad for 70820A module

On April 16, 2019 4:34:23 PM "Paul Bicknell" <paul@...>
wrote:
I think there are about 10 of us that are after the key pad for the
70820


The keyboard is a different thing and we have hade grate
misunderstandings
in the past the keyboard for the 70000 system is a PC type keyboard
with
a HP-HPIL connector on it and goes into the HP-HPIL socket on the 70004
HP-HIL, not HP-HPIL. HP Human Interface Loop. (for those searching)

-Dave

--
Dave McGuire, AK4HZ
New Kensington, PA





--
Dave McGuire, AK4HZ
New Kensington, PA








-----
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2016.0.8048 / Virus Database: 4793/15884 - Release Date: 08/14/18
Internal Virus Database is out of date.


 

Paul wrote:
"Hi Ed? are you saying the 70820 will work at? 50 Ghz ?"

No, I couldn't remember what the official spec was, but it was somewhere up there. The point was that you need the higher grade cables and connectors to attain full performance, but lesser ones are OK for lesser needs.

BTW this brings up an interesting question. Just how high can a sampling scope go, and still be considered to "work?" With an analog scope you can spec the 3 dB bandwidth or risetime, and expect it to roll off gradually above, but it's still usable for some things, until too much detail is lost, the amplitude level is too low to interpret, or the triggering craps out. With a sampler, I would expect similar behavior, except that at some point aliasing also starts to show and mess it up even more.

Using a more generous definition of "work," I'd guess that at room temperature environment, the 70820A would be able to show an "acceptable" sine wave display up to 50-60 GHz. It would have to be a sine wave regardless of input wave shape, or it would have to be all aliased-up.

If anyone can readily look at this, it may be interesting to see what happens beyond the specs.

Ed


 

and last activity on the HP70000 users group is December 2015 ;-(
Thanks for the link I have subscribed
Dave


On Tue, Apr 16, 2019 at 2:26 PM Ed Breya via Groups.Io <edbreya=[email protected]> wrote:
Paul wrote:
"Hi Ed? are you saying the 70820 will work at? 50 Ghz ?"

No, I couldn't remember what the official spec was, but it was somewhere up there. The point was that you need the higher grade cables and connectors to attain full performance, but lesser ones are OK for lesser needs.

BTW this brings up an interesting question. Just how high can a sampling scope go, and still be considered to "work?" With an analog scope you can spec the 3 dB bandwidth or risetime, and expect it to roll off gradually above, but it's still usable for some things, until too much detail is lost, the amplitude level is too low to interpret, or the triggering craps out. With a sampler, I would expect similar behavior, except that at some point aliasing also starts to show and mess it up even more.

Using a more generous definition of "work," I'd guess that at room temperature environment, the 70820A would be able to show an "acceptable" sine wave display up to 50-60 GHz. It would have to be a sine wave regardless of input wave shape, or it would have to be all aliased-up.

If anyone can readily look at this, it may be interesting to see what happens beyond the specs.

Ed



--
72 de Dave
VE7HR


 

They haven't moved to groups.io?

On 17/04/19 8:40 AM, Paul Bicknell wrote:
Hi Dave the other? group is
hp_70000@...


 

开云体育

Hi all the HP70000 users are also on this group but when things get specific the HP70000 users group is used

?


From: [email protected] [mailto:[email protected]] On Behalf Of Dave Miller
Sent: 16 April 2019 22:35
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] Keypad for 70820A module

?

and last activity on the HP70000 users group is December 2015 ;-(

Thanks for the link I have subscribed

Dave

?

On Tue, Apr 16, 2019 at 2:26 PM Ed Breya via Groups.Io <edbreya=[email protected]> wrote:

Paul wrote:
"
Hi Ed? are you saying the 70820 will work at? 50 Ghz ?"

No, I couldn't remember what the official spec was, but it was somewhere up there. The point was that you need the higher grade cables and connectors to attain full performance, but lesser ones are OK for lesser needs.

BTW this brings up an interesting question. Just how high can a sampling scope go, and still be considered to "work?" With an analog scope you can spec the 3 dB bandwidth or risetime, and expect it to roll off gradually above, but it's still usable for some things, until too much detail is lost, the amplitude level is too low to interpret, or the triggering craps out. With a sampler, I would expect similar behavior, except that at some point aliasing also starts to show and mess it up even more.

Using a more generous definition of "work," I'd guess that at room temperature environment, the 70820A would be able to show an "acceptable" sine wave display up to 50-60 GHz. It would have to be a sine wave regardless of input wave shape, or it would have to be all aliased-up.

If anyone can readily look at this, it may be interesting to see what happens beyond the specs.

Ed



--

72 de Dave

VE7HR

No virus found in this message.
Checked by AVG -
Version: 2016.0.8048 / Virus Database: 4793/15884 - Release Date: 08/14/18
Internal Virus Database is out of date.


 

开云体育

Someone should migrate to to


Dave
VE7HR?


On Apr 16, 2019, at 4:33 PM, Paul Bicknell <paul@...> wrote:

Hi all the HP70000 users are also on this group but when things get specific the HP70000 users group is used

?


From: [email protected] [mailto:[email protected]] On Behalf Of Dave Miller
Sent: 16 April 2019 22:35
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] Keypad for 70820A module

?

and last activity on the HP70000 users group is December 2015 ;-(

Thanks for the link I have subscribed

Dave

?

On Tue, Apr 16, 2019 at 2:26 PM Ed Breya via Groups.Io <edbreya=[email protected]> wrote:

Paul wrote:
"
Hi Ed? are you saying the 70820 will work at? 50 Ghz ?"

No, I couldn't remember what the official spec was, but it was somewhere up there. The point was that you need the higher grade cables and connectors to attain full performance, but lesser ones are OK for lesser needs.

BTW this brings up an interesting question. Just how high can a sampling scope go, and still be considered to "work?" With an analog scope you can spec the 3 dB bandwidth or risetime, and expect it to roll off gradually above, but it's still usable for some things, until too much detail is lost, the amplitude level is too low to interpret, or the triggering craps out. With a sampler, I would expect similar behavior, except that at some point aliasing also starts to show and mess it up even more.

Using a more generous definition of "work," I'd guess that at room temperature environment, the 70820A would be able to show an "acceptable" sine wave display up to 50-60 GHz. It would have to be a sine wave regardless of input wave shape, or it would have to be all aliased-up.

If anyone can readily look at this, it may be interesting to see what happens beyond the specs.

Ed



--

72 de Dave

VE7HR

No virus found in this message.
Checked by AVG -
Version: 2016.0.8048 / Virus Database: 4793/15884 - Release Date: 08/14/18
Internal Virus Database is out of date.


 

I thought I had done that some time ago, but it appears I did not.

However, transfer of groups from yahoo to , which was free in the past, now requires a $110 fee (you must upgrade to premium for the first year), which, were I to have had to pay for all the groups I've transferred/created, would be over $1k at this point.

So, I'm sad to say I won't cough up the $110, however, I have created a new group, xfered all the files, and as soon as the new group is approved by , you all will be able to subscribe to it at [email protected]. As soon as it is approved, I'll post to the yahoo group and invite all the current members of the yahoo hp_70000 group and post a 'We've Moved' note.

Bob


Bob


On Tue, Apr 16, 2019 at 9:05 PM Dave Miller <ve7hr@...> wrote:
Someone should migrate to to


Dave
VE7HR?


On Apr 16, 2019, at 4:33 PM, Paul Bicknell <paul@...> wrote:

Hi all the HP70000 users are also on this group but when things get specific the HP70000 users group is used

?


From: [email protected] [mailto:[email protected]] On Behalf Of Dave Miller
Sent: 16 April 2019 22:35
To: [email protected]
Subject: Re: [HP-Agilent-Keysight-equipment] Keypad for 70820A module

?

and last activity on the HP70000 users group is December 2015 ;-(

Thanks for the link I have subscribed

Dave

?

On Tue, Apr 16, 2019 at 2:26 PM Ed Breya via Groups.Io <edbreya=[email protected]> wrote:

Paul wrote:
"
Hi Ed? are you saying the 70820 will work at? 50 Ghz ?"

No, I couldn't remember what the official spec was, but it was somewhere up there. The point was that you need the higher grade cables and connectors to attain full performance, but lesser ones are OK for lesser needs.

BTW this brings up an interesting question. Just how high can a sampling scope go, and still be considered to "work?" With an analog scope you can spec the 3 dB bandwidth or risetime, and expect it to roll off gradually above, but it's still usable for some things, until too much detail is lost, the amplitude level is too low to interpret, or the triggering craps out. With a sampler, I would expect similar behavior, except that at some point aliasing also starts to show and mess it up even more.

Using a more generous definition of "work," I'd guess that at room temperature environment, the 70820A would be able to show an "acceptable" sine wave display up to 50-60 GHz. It would have to be a sine wave regardless of input wave shape, or it would have to be all aliased-up.

If anyone can readily look at this, it may be interesting to see what happens beyond the specs.

Ed



--

72 de Dave

VE7HR

No virus found in this message.
Checked by AVG -
Version: 2016.0.8048 / Virus Database: 4793/15884 - Release Date: 08/14/18
Internal Virus Database is out of date.