B&K 4007DDS sweep generator

[Jamie]

Michael A. Terrell wrote:

"oparr@hotmail.com" wrote:

"Restocking fee" is really their profit; so they get to make that
profit when they re-sell it...

It's 20% in this case, almost $80.00, if I purchased the product in
error. All hell is going to break loose if they charge it, since this
note will be attached with the return;

=================================================================
RE: B&K 4007DDS sweep function generator

Before purchasing this product, I even spoke to a B&K technician
regarding its features and operation because the manual is far from
being comprehensive regarding this. However, with all that it was
still impossible to tell that the device is designed in such a way
that the basic functionality one expects in any function generator is
lost.

This product is being returned due to its somewhat dysfunctional
attributes, compared to other similar products, which B&K has
confirmed is by design. Listed below are these attributes (or lack
thereof);

1. There is no coarse frequency control. It takes more than ten
revolutions of the frequency control to go from say a frequency of
1KHz to 5KHz. The range buttons cannot help in such cases. Just about
every function generator encountered, including the one I currently
have, allows for both coarse and fine control.



WAAAAAAAAA!!!



2. The device is digital but has no memory. You therefore lose all
your relevant settings when the device is switched off. It is
returned to a 1KHz sinusoidal waveform every time the device is
powered. There is no mention of this in the manual and is completely
unacceptable.



Why? Even if it did store the previous settings, most likely they
would be wrong for the task at hand.



3. The frequency is not displayed while in sweep mode. Instead, all
you see while the device is sweeping is the sweep options. An ill-
conceived design.



So a fast changing digital frequency display is going to help you?
How?



What an ass!.

Have you ever considered the fact that maybe it needs to be in a fixed
operation where settings are required to be maintain between power cycles?

Also, being able to monitor the frequency, at most likely a slow ramp
rate, is a useful tool if you are performing some test on a device. One
may want to know where a change is taking place visually.

It just goes to show your ignorance and how you think the world should
revolve around what you think and believe in..

Lord, help us! between our current leader and idiots like this, we're
in a heap of trouble..

In other words! Who gives a shit what you think ? Most likely "oparr"
won't after that comment.. You seem to lack the common sense of what
value basic functions like "oparr" is looking for, is worth!

It kind of makes me wonder about the authenticity of the drivel you
spew out..

Oh, I'm sure you'll have an asinine comment that makes it sound like
you're regressing back to child hood play ground games.

And if it makes you feel any better, go ahead and post my real name.
Like it makes a shit hole of a difference.

 

[Michael A. Terrell]

Jamie wrote:

Michael A. Terrell wrote:
"oparr@hotmail.com" wrote:

"Restocking fee" is really their profit; so they get to make that
profit when they re-sell it...

It's 20% in this case, almost $80.00, if I purchased the product in
error. All hell is going to break loose if they charge it, since this
note will be attached with the return;

=================================================================
RE: B&K 4007DDS sweep function generator

Before purchasing this product, I even spoke to a B&K technician
regarding its features and operation because the manual is far from
being comprehensive regarding this. However, with all that it was
still impossible to tell that the device is designed in such a way
that the basic functionality one expects in any function generator is
lost.

This product is being returned due to its somewhat dysfunctional
attributes, compared to other similar products, which B&K has
confirmed is by design. Listed below are these attributes (or lack
thereof);

1. There is no coarse frequency control. It takes more than ten
revolutions of the frequency control to go from say a frequency of
1KHz to 5KHz. The range buttons cannot help in such cases. Just about
every function generator encountered, including the one I currently
have, allows for both coarse and fine control.



WAAAAAAAAA!!!



2. The device is digital but has no memory. You therefore lose all
your relevant settings when the device is switched off. It is
returned to a 1KHz sinusoidal waveform every time the device is
powered. There is no mention of this in the manual and is completely
unacceptable.



Why? Even if it did store the previous settings, most likely they
would be wrong for the task at hand.



3. The frequency is not displayed while in sweep mode. Instead, all
you see while the device is sweeping is the sweep options. An ill-
conceived design.



So a fast changing digital frequency display is going to help you?
How?



What an ass!.

Have you ever considered the fact that maybe it needs to be in a fixed
operation where settings are required to be maintain between power cycles?

then buy a crappy old Wavetek with pots.

Also, being able to monitor the frequency, at most likely a slow ramp
rate, is a useful tool if you are performing some test on a device. One
may want to know where a change is taking place visually.

A series of changing digits is fairly useless. If that's what he
really wants, he needs an ultrasonic network analyzer.

It just goes to show your ignorance and how you think the world should
revolve around what you think and believe in..

You still refuse to tell us where you work, yet expect people to
believe your crap.

Lord, help us! between our current leader and idiots like this, we're
in a heap of trouble..

You can always leave, idiot.

In other words! Who gives a shit what you think ? Most likely "oparr"
won't after that comment.. You seem to lack the common sense of what
value basic functions like "oparr" is looking for, is worth!

Yet you offer no suggestions, just your usual trolling and whining.

It kind of makes me wonder about the authenticity of the drivel you
spew out..

Oh, I'm sure you'll have an asinine comment that makes it sound like
you're regressing back to child hood play ground games.

And if it makes you feel any better, go ahead and post my real name.
Like it makes a shit hole of a difference.

Nothing about you makes any difference. You hide behind a fake name,
and pretend you know something. Tell the OP exactly what test equipment
he needs to buy, or go away. The HP 3325 has a touch pad to enter
initial settings, and a rotary encoder to make adjustments. B&K was
never lab grade equipment. They made run of the mill test equipment for
TV shops, just like Sencore & Heathkit.


http://cp.literature.agilent.com/litweb/pdf/03325-90014.pdf is the
operators manual, which shows how to store settings. You can also use
the IEEE-488 or RS-232 interface to program it as part of an ATE or SATE
test system.

http://cp.literature.agilent.com/litweb/pdf/03325-90003.pdf is the
service manual and parts list, for those with enough brains to know what
to do with it. I've troubleshot some of these, when the old guy in the
metrology lab ran into problems. The biggest problem is relay failures
on high usage units.


Now, where are your recommendations?


--
You can't have a sense of humor, if you have no sense!

 

[oparr@hotmail.com]

"Restocking fee" is really their profit; so they get to make that
profit when they re-sell it...

It's 20% in this case, almost $80.00, if I purchased the product in
error. All hell is going to break loose if they charge it, since this
note will be attached with the return;

================================================================RE: B&K 4007DDS sweep function generator


Before purchasing this product, I even spoke to a B&K technician
regarding its features and operation because the manual is far from
being comprehensive regarding this. However, with all that it was
still impossible to tell that the device is designed in such a way
that the basic functionality one expects in any function generator is
lost.

This product is being returned due to its somewhat dysfunctional
attributes, compared to other similar products, which B&K has
confirmed is by design. Listed below are these attributes (or lack
thereof);

1. There is no coarse frequency control. It takes more than ten
revolutions of the frequency control to go from say a frequency of
1KHz to 5KHz. The range buttons cannot help in such cases. Just about
every function generator encountered, including the one I currently
have, allows for both coarse and fine control.

2. The device is digital but has no memory. You therefore lose all
your relevant settings when the device is switched off. It is
returned to a 1KHz sinusoidal waveform every time the device is
powered. There is no mention of this in the manual and is completely
unacceptable.

3. The frequency is not displayed while in sweep mode. Instead, all
you see while the device is sweeping is the sweep options. An ill-
conceived design.

=====================================================
On Sep 20, 2:18 am, Robert Baer <robertb...@localnet.com> wrote:
>

 

[Phil Hobbs]

Michael A. Terrell wrote:

Jamie wrote:
Michael A. Terrell wrote:
"oparr@hotmail.com" wrote:

"Restocking fee" is really their profit; so they get to make that
profit when they re-sell it...
It's 20% in this case, almost $80.00, if I purchased the product in
error. All hell is going to break loose if they charge it, since this
note will be attached with the return;

=================================================================
RE: B&K 4007DDS sweep function generator

Before purchasing this product, I even spoke to a B&K technician
regarding its features and operation because the manual is far from
being comprehensive regarding this. However, with all that it was
still impossible to tell that the device is designed in such a way
that the basic functionality one expects in any function generator is
lost.

This product is being returned due to its somewhat dysfunctional
attributes, compared to other similar products, which B&K has
confirmed is by design. Listed below are these attributes (or lack
thereof);

1. There is no coarse frequency control. It takes more than ten
revolutions of the frequency control to go from say a frequency of
1KHz to 5KHz. The range buttons cannot help in such cases. Just about
every function generator encountered, including the one I currently
have, allows for both coarse and fine control.


WAAAAAAAAA!!!



2. The device is digital but has no memory. You therefore lose all
your relevant settings when the device is switched off. It is
returned to a 1KHz sinusoidal waveform every time the device is
powered. There is no mention of this in the manual and is completely
unacceptable.


Why? Even if it did store the previous settings, most likely they
would be wrong for the task at hand.



3. The frequency is not displayed while in sweep mode. Instead, all
you see while the device is sweeping is the sweep options. An ill-
conceived design.


So a fast changing digital frequency display is going to help you?
How?



What an ass!.

Have you ever considered the fact that maybe it needs to be in a fixed
operation where settings are required to be maintain between power cycles?


then buy a crappy old Wavetek with pots.

Also, being able to monitor the frequency, at most likely a slow ramp
rate, is a useful tool if you are performing some test on a device. One
may want to know where a change is taking place visually.


A series of changing digits is fairly useless. If that's what he
really wants, he needs an ultrasonic network analyzer.


It just goes to show your ignorance and how you think the world should
revolve around what you think and believe in..


You still refuse to tell us where you work, yet expect people to
believe your crap.


Lord, help us! between our current leader and idiots like this, we're
in a heap of trouble..


You can always leave, idiot.


In other words! Who gives a shit what you think ? Most likely "oparr"
won't after that comment.. You seem to lack the common sense of what
value basic functions like "oparr" is looking for, is worth!


Yet you offer no suggestions, just your usual trolling and whining.


It kind of makes me wonder about the authenticity of the drivel you
spew out..

Oh, I'm sure you'll have an asinine comment that makes it sound like
you're regressing back to child hood play ground games.

And if it makes you feel any better, go ahead and post my real name.
Like it makes a shit hole of a difference.


Nothing about you makes any difference. You hide behind a fake name,
and pretend you know something. Tell the OP exactly what test equipment
he needs to buy, or go away. The HP 3325 has a touch pad to enter
initial settings, and a rotary encoder to make adjustments. B&K was
never lab grade equipment. They made run of the mill test equipment for
TV shops, just like Sencore & Heathkit.


http://cp.literature.agilent.com/litweb/pdf/03325-90014.pdf is the
operators manual, which shows how to store settings. You can also use
the IEEE-488 or RS-232 interface to program it as part of an ATE or SATE
test system.

http://cp.literature.agilent.com/litweb/pdf/03325-90003.pdf is the
service manual and parts list, for those with enough brains to know what
to do with it. I've troubleshot some of these, when the old guy in the
metrology lab ran into problems. The biggest problem is relay failures
on high usage units.


Now, where are your recommendations?

At the risk of disturbing this lovely flame war, the 3325s I know don't
have knobs, which is one of their least endearing features. The other
non-endearing one is that the triangle and sawtooth outputs crap out at
10 kHz. Also, iirc some early ones had a nasty glitch at the DAC's
major carry, so I got into the habit of filtering the output. The B
model doesn't do that, and neither do the later A's AFAIK.

Other than that, it's a great instrument--I spent my own money on a nice
used one about 3 months ago. A bit on the mammoth side compared to more
modern stuff--you definitely need a rack.



Cheers

Phil Hobbs

--
Dr Philip C D Hobbs
Principal
ElectroOptical Innovations
55 Orchard Rd
Briarcliff Manor NY 10510
845-480-2058
hobbs at electrooptical dot net
http://electrooptical.net

 

[oparr@hotmail.com]

Now, where are your recommendations?

Let's put the "Clash of the Test Equipment Titans" aside for the
moment...Do you or anyone know of a versatile ramp generator suitable
for connecting to the VCG input of a function generator?

On Sep 21, 3:25 pm, "Michael A. Terrell" <mike.terr...@earthlink.net>
wrote:
>

 

[Nico Coesel]

Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net> wrote:

At the risk of disturbing this lovely flame war, the 3325s I know don't
have knobs, which is one of their least endearing features. The other
non-endearing one is that the triangle and sawtooth outputs crap out at
10 kHz. Also, iirc some early ones had a nasty glitch at the DAC's
major carry, so I got into the habit of filtering the output. The B
model doesn't do that, and neither do the later A's AFAIK.

Other than that, it's a great instrument--I spent my own money on a nice
used one about 3 months ago. A bit on the mammoth side compared to more
modern stuff--you definitely need a rack.

A few years ago I bought an HP3314A function generator. It has tons of
features (and some limitations) but overall I like it very much.

--
Failure does not prove something is impossible, failure simply
indicates you are not using the right tools...
"If it doesn't fit, use a bigger hammer!"
--------------------------------------------------------------

 

[Michael A. Terrell]

"oparr@hotmail.com" wrote:

Now, where are your recommendations?

Let's put the "Clash of the Test Equipment Titans" aside for the
moment...Do you or anyone know of a versatile ramp generator suitable
for connecting to the VCG input of a function generator?

On Sep 21, 3:25 pm, "Michael A. Terrell" <mike.terr...@earthlink.net
wrote:

An arbitrary waveform generator would let you have any waveform you
want. Create the wave shape you want, and use it as is. No need for two
instruments.

If all you want is a simple, linear DC ramp you can build one with a
counter (or microprocessor) & DAC. We used some Analog Devices Dual 18
bit DAC in a design for a 0 to -44 dB video attenuator. That, plus a
switched 20 db gain stage gave us a 0 to -64 dB range with .1 dB steps.
It has a serial input and operates from a single +5 V rail. The second
DAC was used to trim the DC offset for the entire video system.


http://www.analog.com/en/digital-to-analog-converters/audio-da-converters/ad1868/products/product.html


--
You can't have a sense of humor, if you have no sense!

 

[Michael A. Terrell]

Phil Hobbs wrote:

At the risk of disturbing this lovely flame war, the 3325s I know don't
have knobs, which is one of their least endearing features. The other
non-endearing one is that the triangle and sawtooth outputs crap out at
10 kHz. Also, iirc some early ones had a nasty glitch at the DAC's
major carry, so I got into the habit of filtering the output. The B
model doesn't do that, and neither do the later A's AFAIK.

Other than that, it's a great instrument--I spent my own money on a nice
used one about 3 months ago. A bit on the mammoth side compared to more
modern stuff--you definitely need a rack.

Yes, its big, but considering that it has a lot of TTL logic and
relays to set the output level in millivolts or dB, it was fairly
compact for when it was designed. it was intended for ATE applications,
where a rack or two wasn't out of the question. When used with a HP
8660 and other HP equipment of that era, it was rather compact.

The last version of the maual was dated 1990, after all.

We used heavy duty shop carts for the larger test equipment for
several reasons, including the ability to unplug a few cables and roll
the whole thing into the metrology lab, when needed. If a piece of
equipment failed, you just asked a couple techs to lift the top of the
stack and switched out the failed equipment.


--
You can't have a sense of humor, if you have no sense!

 

[JW]

On Mon, 21 Sep 2009 16:08:36 -0400 Phil Hobbs
<pcdhSpamMeSenseless@electrooptical.net> wrote in Message id:
<5o2dnX16sYXZQCrXnZ2dnUVZ_g2dnZ2d@supernews.com>:

[3325]

The other
non-endearing one is that the triangle and sawtooth outputs crap out at
10 kHz.

Good reason to get an HP 8116a instead. They can be had for about $350
working, ($150 non-working) and it's a lot smaller to boot.

 

[oparr@hotmail.com]

It's 20% in this case, almost $80.00, if I purchased the product in
error. All hell is going to break loose if they charge it

For what it's worth, I got a complete refund for the sweep generator.
They didn't deduct their shipping charge.

On Sep 21, 1:39 pm, "op...@hotmail.com" <op...@hotmail.com> wrote:

It's 20% in this case, almost $80.00, if I purchased the product in
error. All hell is going to break loose if they charge it, since this
note will be attached with the return;

================================================================> RE: B&K 4007DDS sweep function generator

Before purchasing this product, I even spoke to a B&K technician
regarding its features and operation because the manual is far from
being comprehensive regarding this. However, with all that it was
still impossible to tell that the device is designed in such a way
that the basic functionality one expects in any function generator is
lost.

This product is being returned due to its somewhat dysfunctional
attributes, compared to other similar products, which B&K has
confirmed is by design. Listed below are these attributes (or lack
thereof);

1. There is no coarse frequency control. It takes more than ten
revolutions of the frequency control to go from say a frequency of
1KHz to 5KHz. The range buttons cannot help in such cases. Just about
every function generator encountered, including the one I currently
have, allows for both coarse and fine control.

2. The device is digital but has no memory. You therefore lose all
your relevant settings when the device is switched off.  It is
returned to a 1KHz sinusoidal waveform every time the device is
powered. There is no mention of this in the manual and is completely
unacceptable.

3. The frequency is not displayed while in sweep mode. Instead, all
you see while the device is sweeping is the sweep options. An ill-
conceived design.

=====================================================