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Re: 8920B Saving last condition?

Ron Wilkinson
 

Greetings all,

Try saving the state as "POWERON", then restart...

Regards,

Ron Wilkinson

mi-Biz Systems Pty Ltd
Perth - Western Australia

====

Artekmedia wrote:

I'm guessing your running this thing in native mode but if you had it
hooked up to the GPIB , then a simple routine could be written to set
the new defaults on start-up. Actually thinking about your request in
more detail the routine could be used to "capture" the current settings
and store them ..then you just run the recall routine on start-up next
time. The more I think about this GPIB is the answer, not to mention
other perks like data retention etc.

Dave
NR1DX

On 3/16/2013 1:45 PM, David Kirkby wrote:

On 16 March 2013 03:21, k8kwh <khoehn@...
<mailto:khoehn%40westshorefire.com>
<mailto:khoehn%40westshorefire.com>> wrote:
Hi,

Is there a fairly simple keyboard command that will set up the 8920B
to 'hold' the last instrument settings for recall when the unit is
next powered up?

I don't know about this instrument, but on my 8720D VNA, if a
calibration state is saved with the name "UPRESET" then it will power
up with that setup. It's a long shot, but you could try naming the
setup you want UPRESET

Dave, G8WRB

--
Dave Henderson
Manuals@... <mailto:Manuals%40ArtekManuals.com>
www.Artekmanuals.com
PO Box 175
Welch,MN 55089
651-269-4265


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Re: counter

 

I toured a factory a few years ago and was surprised to see several Heathkit counters, SM-2420's, still being used in their repair centers. I made a comment to one of the executives and he said they were all hooked up to a precision reference. But I notices last year while also in the same factory most of the Heathkit's were now gone and replaced by HP's. I did still see one. Maybe he was embarrassed I noticed the Heathkit's.

But he was right, the weakest link in the Heathkit SM-2420 is the crystal oven and with a precision reference the digital circuits will be just as good as the reference. I still have a SM-2420 and a spare for parts (unless I get around to fixing it), but I tend to use the HPs and a Racal the most.

The Heathkit's were great things to have during the 50' - 80's, as several of us would not have been able to afford much of any test equipment if it had not been for Heathkit. During most of that time there was not much good surplus stuff at great prices like there is today. Sad to think that may not be true in a few more years.

Hold on to the Heathkit for a back up or second counter. If the HP you get has a reference output you can use it to drive the Heathkit (if it is one that has a reference input) and then make two measurements at the same time off the same reference.

Steve


jcline01@... wrote:


Max,

I grew up on Heathkit and built a few kits before they went under the first time. I recall building a HW101 HF transceiver, 20 MHz scope, HW2016 2-meter transceiver (my first fully synthesized rig), and a morse code keyer (u-matic). There was also the digital weather station and a digital clock for the ham shack. My dad also built a few Heathkits pieces of test gear i the 50's and 60's. It was all good inexpensive stuff that worked reasonably well.

The first time I used a Hewlett Packard frequency counter as an Electronic Technician back in the 1970's, I fell in love. I also appreciated the Fluke digital voltmeters and Tek scopes. But mostly, I dreamed one day of owning the Rolls Royce of test equipment.

Well, today, it is used and older technology, but it still has the wonderful quality that HP built into most every piece of equipment they engineered and constructed.

Best of luuck with the upgrades. I hope to join you in retiremnent in a few years!

Regards,

Joe
--- In hp_agilent_equipment@... <mailto:hp_agilent_equipment%40yahoogroups.com>, "Max Robinson" <max@...> wrote:

Thank you Joe. I'll give it some thought. I do have a well equipped lab
but my frequency counter is a Heathkit. I'm retired so I have lots
of time
and experience. As the price of HP gear has come down I am in the
process
of replacing my Heathkit gear with HP.

Regards.

Max. K 4 O DS.

Email: max@...

Transistor site
Vacuum tube site:
Woodworking site

Music site:

To subscribe to the fun with transistors group send an email to.
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----- Original Message -----
From: <jcline01@...>
To: <hp_agilent_equipment@...
<mailto:hp_agilent_equipment%40yahoogroups.com>>
Sent: Saturday, March 16, 2013 5:51 AM
Subject: [hp_agilent_equipment] Re: counter


Hi Max,

I have refurbished many of the 5335A, and several 5334A/B models
over the
past several years. There is good news and bad news on how repairable
these models may be. The bad news is that these are getting fairly
long in
the tooth, and some parts are reaching the "unobtainium" stage.
The good
news is that there are many of these counters still on the market,
and if
one shops well, one may find a good "donor" or two to fix the
first unit
for not too much money. This method is actually how I got started
refurbishing HP gear. I bought a 5335A Counter for my setup, and
the odds
were against me in that it did not work. The needed parts were not
available through normal suppliers such as Mouser. So, I boughts
another
unit, and it worked! It took two or three more units to find one
that did
not work, so that I could make it a donor unit. By that time, I had a
pretty good inventory of spare parts accummulated...

My experience is that only about 10% of the 5335A counters work
out of the
box. The most common trouble has been the A3/A12 boards with bad
Schmitt
amplifer ICs and signal relays. You need to be able to work on densly
populated circuit boards to repair these. Another common problem
has been
the power supply switching relays overheating on the older models.
Later
designs cured this by changing from a 120 VAC fan to a 24 VDC fan
along
with diode protection from the inductive load switching. I can go
on for
many pages about other issues I have found in the 5335A models and
repaired, but will spare you and the group. I you want more
information,
please contact me offline.

The 5334A models have their share of issues, but because of
simplicity and
somewhat newer design, the only real issues have been the signal
relays on
the main board becoming stuck in one position or the other. This
is easy
to fix with a soldering/desoldering station and parts that are
currently
available from Mouser.

Now the real issue is that you need some basic test equipment in
order to
align these counters once you get them working. When there are no
defective parts, they work pretty well, but severe alignment
problems will
stop them, and you need to be able to align your counter to ensure
that
your measurements are accurate. For that, you will need a two channel
oscilloscope, signal generators, such as a 3325A/B for the low
frequencies, 8657A or similar for the high frequencies, pulse
generator
(8082A), and a good frequency reference, such as Rhubidium
Oscillator or
GPSDO (Z3801A or Thunderbolt). You may need some additional gear for
Channel C such as a 8657B (1300 Mhz), a power meter/sensor, and a
50 ohm
splitter.

These are great counters and do a remarkable job, especially
considering
their age. I truly enjoy working on them and refurbishing for
others to
enjoy. Choose a reliable seller - many of the "Top Sellers" will
send you
garbage and will not pack the equipment properly, but that is a whole
separate topic. Best of luck with your decision.

Regards,

Joe, KN5U

--- In hp_agilent_equipment@...
<mailto:hp_agilent_equipment%40yahoogroups.com>, "Max Robinson" <max@>
wrote:

If one gets one of these and it doesn't work, how repairable is it?

Regards.

Max. K 4 O DS.

Email: max@

Transistor site
Vacuum tube site:
Woodworking site

Music site:

To subscribe to the fun with transistors group send an email to.
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----- Original Message -----
From: "Peter Gottlieb" <hpnpilot@>
To: <hp_agilent_equipment@...
<mailto:hp_agilent_equipment%40yahoogroups.com>>
Sent: Friday, March 15, 2013 9:54 PM
Subject: Re: [hp_agilent_equipment] Re: counter


The 5334 and 5335 also have reciprocal counting, so keep an eye
out for
all of
them. Last 5334B I got I paid $40 and it was mint. It didn't
have the
good
timebase oscillator but I use a rubidium distributed around so
didn't
need
it.

These prices are insane for what you get.


On 3/15/2013 6:06 AM, adrian_microwave wrote:

Paul,

if you want to measure low frequencies with high resolution,
you will
definitely want a counter with reciprocal counting. Otherwise
you're
waiting
for ages, especially with audio signals.

The 5315A (w/o HPIB) and 5316A/B (w/HPIB) are the best bang
for the
buck,
IMO.
They are powerful tools, small, come without a noisy fan and
can be
had
for
stunning little money if you are a little patient.

Adrian

--- In hp_agilent_equipment@...
<mailto:hp_agilent_equipment%40yahoogroups.com>
<mailto:hp_agilent_equipment%40yahoogroups.com>, "Paul Kraemer"
<elespe@>
wrote:

I am beginning to shop for a better frequency counter for my
test
bench

I don't need uhf or even vhf but I do want something HP that
I can
rely
on
10mhz and below

Something basically simple but not a toy. I have a couple of
those
already.

Compact size and latest gee whiz item is not so important as
budget,
reliability, serviceability. OK, I'd like cheap if that is
possible.
I
don't
mind fixing ebay finds if it isn't going to be impossible to
get it
calibrated.

So many models I thought I'd start here

Thank-you

Paul K0UYA

----------------------------------------------------------

No virus found in this message.
Checked by AVG - www.avg.com <>
Version: 10.0.1430 / Virus Database: 2641/5673 - Release Date:
03/14/13


------------------------------------

Yahoo! Groups Links





------------------------------------

Yahoo! Groups Links



Re: counter

 

Max,

I grew up on Heathkit and built a few kits before they went under the first time. I recall building a HW101 HF transceiver, 20 MHz scope, HW2016 2-meter transceiver (my first fully synthesized rig), and a morse code keyer (u-matic). There was also the digital weather station and a digital clock for the ham shack. My dad also built a few Heathkits pieces of test gear i the 50's and 60's. It was all good inexpensive stuff that worked reasonably well.

The first time I used a Hewlett Packard frequency counter as an Electronic Technician back in the 1970's, I fell in love. I also appreciated the Fluke digital voltmeters and Tek scopes. But mostly, I dreamed one day of owning the Rolls Royce of test equipment.

Well, today, it is used and older technology, but it still has the wonderful quality that HP built into most every piece of equipment they engineered and constructed.

Best of luuck with the upgrades. I hope to join you in retiremnent in a few years!

Regards,

Joe

--- In hp_agilent_equipment@..., "Max Robinson" <max@...> wrote:

Thank you Joe. I'll give it some thought. I do have a well equipped lab
but my frequency counter is a Heathkit. I'm retired so I have lots of time
and experience. As the price of HP gear has come down I am in the process
of replacing my Heathkit gear with HP.

Regards.

Max. K 4 O DS.

Email: max@...

Transistor site
Vacuum tube site:
Woodworking site

Music site:

To subscribe to the fun with transistors group send an email to.
funwithtransistors-subscribe@...

To subscribe to the fun with tubes group send an email to,
funwithtubes-subscribe@...

To subscribe to the fun with wood group send a blank email to
funwithwood-subscribe@...

----- Original Message -----
From: <jcline01@...>
To: <hp_agilent_equipment@...>
Sent: Saturday, March 16, 2013 5:51 AM
Subject: [hp_agilent_equipment] Re: counter


Hi Max,

I have refurbished many of the 5335A, and several 5334A/B models over the
past several years. There is good news and bad news on how repairable
these models may be. The bad news is that these are getting fairly long in
the tooth, and some parts are reaching the "unobtainium" stage. The good
news is that there are many of these counters still on the market, and if
one shops well, one may find a good "donor" or two to fix the first unit
for not too much money. This method is actually how I got started
refurbishing HP gear. I bought a 5335A Counter for my setup, and the odds
were against me in that it did not work. The needed parts were not
available through normal suppliers such as Mouser. So, I boughts another
unit, and it worked! It took two or three more units to find one that did
not work, so that I could make it a donor unit. By that time, I had a
pretty good inventory of spare parts accummulated...

My experience is that only about 10% of the 5335A counters work out of the
box. The most common trouble has been the A3/A12 boards with bad Schmitt
amplifer ICs and signal relays. You need to be able to work on densly
populated circuit boards to repair these. Another common problem has been
the power supply switching relays overheating on the older models. Later
designs cured this by changing from a 120 VAC fan to a 24 VDC fan along
with diode protection from the inductive load switching. I can go on for
many pages about other issues I have found in the 5335A models and
repaired, but will spare you and the group. I you want more information,
please contact me offline.

The 5334A models have their share of issues, but because of simplicity and
somewhat newer design, the only real issues have been the signal relays on
the main board becoming stuck in one position or the other. This is easy
to fix with a soldering/desoldering station and parts that are currently
available from Mouser.

Now the real issue is that you need some basic test equipment in order to
align these counters once you get them working. When there are no
defective parts, they work pretty well, but severe alignment problems will
stop them, and you need to be able to align your counter to ensure that
your measurements are accurate. For that, you will need a two channel
oscilloscope, signal generators, such as a 3325A/B for the low
frequencies, 8657A or similar for the high frequencies, pulse generator
(8082A), and a good frequency reference, such as Rhubidium Oscillator or
GPSDO (Z3801A or Thunderbolt). You may need some additional gear for
Channel C such as a 8657B (1300 Mhz), a power meter/sensor, and a 50 ohm
splitter.

These are great counters and do a remarkable job, especially considering
their age. I truly enjoy working on them and refurbishing for others to
enjoy. Choose a reliable seller - many of the "Top Sellers" will send you
garbage and will not pack the equipment properly, but that is a whole
separate topic. Best of luck with your decision.

Regards,

Joe, KN5U

--- In hp_agilent_equipment@..., "Max Robinson" <max@>
wrote:

If one gets one of these and it doesn't work, how repairable is it?

Regards.

Max. K 4 O DS.

Email: max@

Transistor site
Vacuum tube site:
Woodworking site

Music site:

To subscribe to the fun with transistors group send an email to.
funwithtransistors-subscribe@...

To subscribe to the fun with tubes group send an email to,
funwithtubes-subscribe@...

To subscribe to the fun with wood group send a blank email to
funwithwood-subscribe@...

----- Original Message -----
From: "Peter Gottlieb" <hpnpilot@>
To: <hp_agilent_equipment@...>
Sent: Friday, March 15, 2013 9:54 PM
Subject: Re: [hp_agilent_equipment] Re: counter


The 5334 and 5335 also have reciprocal counting, so keep an eye out for
all of
them. Last 5334B I got I paid $40 and it was mint. It didn't have the
good
timebase oscillator but I use a rubidium distributed around so didn't
need
it.

These prices are insane for what you get.


On 3/15/2013 6:06 AM, adrian_microwave wrote:

Paul,

if you want to measure low frequencies with high resolution, you will
definitely want a counter with reciprocal counting. Otherwise you're
waiting
for ages, especially with audio signals.

The 5315A (w/o HPIB) and 5316A/B (w/HPIB) are the best bang for the
buck,
IMO.
They are powerful tools, small, come without a noisy fan and can be
had
for
stunning little money if you are a little patient.

Adrian

--- In hp_agilent_equipment@...
<mailto:hp_agilent_equipment%40yahoogroups.com>, "Paul Kraemer"
<elespe@>
wrote:

I am beginning to shop for a better frequency counter for my test
bench

I don't need uhf or even vhf but I do want something HP that I can
rely
on
10mhz and below

Something basically simple but not a toy. I have a couple of those
already.

Compact size and latest gee whiz item is not so important as budget,
reliability, serviceability. OK, I'd like cheap if that is possible.
I
don't
mind fixing ebay finds if it isn't going to be impossible to get it
calibrated.

So many models I thought I'd start here

Thank-you

Paul K0UYA

--------------------------------------------------------------------------------

No virus found in this message.
Checked by AVG - www.avg.com <>
Version: 10.0.1430 / Virus Database: 2641/5673 - Release Date:
03/14/13


------------------------------------

Yahoo! Groups Links





------------------------------------

Yahoo! Groups Links



Re: counter

 

Thank you Joe. I'll give it some thought. I do have a well equipped lab but my frequency counter is a Heathkit. I'm retired so I have lots of time and experience. As the price of HP gear has come down I am in the process of replacing my Heathkit gear with HP.

Regards.

Max. K 4 O DS.

Email: max@...

Transistor site
Vacuum tube site:
Woodworking site
Music site:

To subscribe to the fun with transistors group send an email to.
funwithtransistors-subscribe@...

To subscribe to the fun with tubes group send an email to,
funwithtubes-subscribe@...

To subscribe to the fun with wood group send a blank email to
funwithwood-subscribe@...

----- Original Message -----
From: <jcline01@...>
To: <hp_agilent_equipment@...>
Sent: Saturday, March 16, 2013 5:51 AM
Subject: [hp_agilent_equipment] Re: counter


Hi Max,

I have refurbished many of the 5335A, and several 5334A/B models over the past several years. There is good news and bad news on how repairable these models may be. The bad news is that these are getting fairly long in the tooth, and some parts are reaching the "unobtainium" stage. The good news is that there are many of these counters still on the market, and if one shops well, one may find a good "donor" or two to fix the first unit for not too much money. This method is actually how I got started refurbishing HP gear. I bought a 5335A Counter for my setup, and the odds were against me in that it did not work. The needed parts were not available through normal suppliers such as Mouser. So, I boughts another unit, and it worked! It took two or three more units to find one that did not work, so that I could make it a donor unit. By that time, I had a pretty good inventory of spare parts accummulated...

My experience is that only about 10% of the 5335A counters work out of the box. The most common trouble has been the A3/A12 boards with bad Schmitt amplifer ICs and signal relays. You need to be able to work on densly populated circuit boards to repair these. Another common problem has been the power supply switching relays overheating on the older models. Later designs cured this by changing from a 120 VAC fan to a 24 VDC fan along with diode protection from the inductive load switching. I can go on for many pages about other issues I have found in the 5335A models and repaired, but will spare you and the group. I you want more information, please contact me offline.

The 5334A models have their share of issues, but because of simplicity and somewhat newer design, the only real issues have been the signal relays on the main board becoming stuck in one position or the other. This is easy to fix with a soldering/desoldering station and parts that are currently available from Mouser.

Now the real issue is that you need some basic test equipment in order to align these counters once you get them working. When there are no defective parts, they work pretty well, but severe alignment problems will stop them, and you need to be able to align your counter to ensure that your measurements are accurate. For that, you will need a two channel oscilloscope, signal generators, such as a 3325A/B for the low frequencies, 8657A or similar for the high frequencies, pulse generator (8082A), and a good frequency reference, such as Rhubidium Oscillator or GPSDO (Z3801A or Thunderbolt). You may need some additional gear for Channel C such as a 8657B (1300 Mhz), a power meter/sensor, and a 50 ohm splitter.

These are great counters and do a remarkable job, especially considering their age. I truly enjoy working on them and refurbishing for others to enjoy. Choose a reliable seller - many of the "Top Sellers" will send you garbage and will not pack the equipment properly, but that is a whole separate topic. Best of luck with your decision.

Regards,

Joe, KN5U

--- In hp_agilent_equipment@..., "Max Robinson" <max@...> wrote:

If one gets one of these and it doesn't work, how repairable is it?

Regards.

Max. K 4 O DS.

Email: max@...

Transistor site
Vacuum tube site:
Woodworking site

Music site:

To subscribe to the fun with transistors group send an email to.
funwithtransistors-subscribe@...

To subscribe to the fun with tubes group send an email to,
funwithtubes-subscribe@...

To subscribe to the fun with wood group send a blank email to
funwithwood-subscribe@...

----- Original Message -----
From: "Peter Gottlieb" <hpnpilot@...>
To: <hp_agilent_equipment@...>
Sent: Friday, March 15, 2013 9:54 PM
Subject: Re: [hp_agilent_equipment] Re: counter


The 5334 and 5335 also have reciprocal counting, so keep an eye out for
all of
them. Last 5334B I got I paid $40 and it was mint. It didn't have the good
timebase oscillator but I use a rubidium distributed around so didn't need
it.

These prices are insane for what you get.


On 3/15/2013 6:06 AM, adrian_microwave wrote:

Paul,

if you want to measure low frequencies with high resolution, you will
definitely want a counter with reciprocal counting. Otherwise you're
waiting
for ages, especially with audio signals.

The 5315A (w/o HPIB) and 5316A/B (w/HPIB) are the best bang for the buck,
IMO.
They are powerful tools, small, come without a noisy fan and can be had
for
stunning little money if you are a little patient.

Adrian

--- In hp_agilent_equipment@...
<mailto:hp_agilent_equipment%40yahoogroups.com>, "Paul Kraemer"
<elespe@>
wrote:

I am beginning to shop for a better frequency counter for my test bench

I don't need uhf or even vhf but I do want something HP that I can rely
on
10mhz and below

Something basically simple but not a toy. I have a couple of those
already.

Compact size and latest gee whiz item is not so important as budget,
reliability, serviceability. OK, I'd like cheap if that is possible. I
don't
mind fixing ebay finds if it isn't going to be impossible to get it
calibrated.

So many models I thought I'd start here

Thank-you

Paul K0UYA

--------------------------------------------------------------------------------

No virus found in this message.
Checked by AVG - www.avg.com <>
Version: 10.0.1430 / Virus Database: 2641/5673 - Release Date: 03/14/13


------------------------------------

Yahoo! Groups Links





------------------------------------

Yahoo! Groups Links



HP/Agilent Drive Test Systems Receivers

 

Does anyone know anything about how to talk to these boxes? They are very nice receivers with built-in GPS. Comms are via RS232, but have no data on what commands are. I've been told that the FPGA firmware was downloaded at startup, which might make things a bit more difficult.

I know Agilent sold the business to JDSU a few years back.

Thanks.


Re: 8920B Saving last condition?

Artekmedia
 

I'm guessing your running this thing in native mode but if you had it
hooked up to the GPIB , then a simple routine could be written to set
the new defaults on start-up. Actually thinking about your request in
more detail the routine could be used to "capture" the current settings
and store them ..then you just run the recall routine on start-up next
time. The more I think about this GPIB is the answer, not to mention
other perks like data retention etc.

Dave
NR1DX

On 3/16/2013 1:45 PM, David Kirkby wrote:

On 16 March 2013 03:21, k8kwh <khoehn@...
<mailto:khoehn%40westshorefire.com>> wrote:
Hi,

Is there a fairly simple keyboard command that will set up the 8920B
to 'hold' the last instrument settings for recall when the unit is
next powered up?

I don't know about this instrument, but on my 8720D VNA, if a
calibration state is saved with the name "UPRESET" then it will power
up with that setup. It's a long shot, but you could try naming the
setup you want UPRESET

Dave, G8WRB

--
Dave Henderson
Manuals@...
www.Artekmanuals.com
PO Box 175
Welch,MN 55089
651-269-4265


Re: 8920B Saving last condition?

David Kirkby
 

On 16 March 2013 03:21, k8kwh <khoehn@...> wrote:
Hi,

Is there a fairly simple keyboard command that will set up the 8920B to 'hold' the last instrument settings for recall when the unit is next powered up?

I don't know about this instrument, but on my 8720D VNA, if a
calibration state is saved with the name "UPRESET" then it will power
up with that setup. It's a long shot, but you could try naming the
setup you want UPRESET

Dave, G8WRB


Re: 8920B Saving last condition?

 

My 8920B allows you to save a number of setups. You can use the limited
naming capability to ID the frequency it is setup for. As an example, 443500
is my UHF repeater test setup. That's about the best it will do.

Tom Holmes, N8ZM
Tipp City, OH
EM79


Re: 85685A special cabling changes

 

The Spec An / Preselector combination does not work without the HSWP connection. There is an error that announces the lack of the connection and the instrument will not go beyond that point.

As far as the two cable types with the different HSWP pickoff, there is no apparent difference in the functionality or effect on measurement accuracy. I had a set of the 8574A cables that had the pickoff on the cable connector side and used that set for performance testing of all vintages of the system when the customer cables were not shipped with the unit.

Bill


Re: counter

 

Hi Max,

I have refurbished many of the 5335A, and several 5334A/B models over the past several years. There is good news and bad news on how repairable these models may be. The bad news is that these are getting fairly long in the tooth, and some parts are reaching the "unobtainium" stage. The good news is that there are many of these counters still on the market, and if one shops well, one may find a good "donor" or two to fix the first unit for not too much money. This method is actually how I got started refurbishing HP gear. I bought a 5335A Counter for my setup, and the odds were against me in that it did not work. The needed parts were not available through normal suppliers such as Mouser. So, I boughts another unit, and it worked! It took two or three more units to find one that did not work, so that I could make it a donor unit. By that time, I had a pretty good inventory of spare parts accummulated...

My experience is that only about 10% of the 5335A counters work out of the box. The most common trouble has been the A3/A12 boards with bad Schmitt amplifer ICs and signal relays. You need to be able to work on densly populated circuit boards to repair these. Another common problem has been the power supply switching relays overheating on the older models. Later designs cured this by changing from a 120 VAC fan to a 24 VDC fan along with diode protection from the inductive load switching. I can go on for many pages about other issues I have found in the 5335A models and repaired, but will spare you and the group. I you want more information, please contact me offline.

The 5334A models have their share of issues, but because of simplicity and somewhat newer design, the only real issues have been the signal relays on the main board becoming stuck in one position or the other. This is easy to fix with a soldering/desoldering station and parts that are currently available from Mouser.

Now the real issue is that you need some basic test equipment in order to align these counters once you get them working. When there are no defective parts, they work pretty well, but severe alignment problems will stop them, and you need to be able to align your counter to ensure that your measurements are accurate. For that, you will need a two channel oscilloscope, signal generators, such as a 3325A/B for the low frequencies, 8657A or similar for the high frequencies, pulse generator (8082A), and a good frequency reference, such as Rhubidium Oscillator or GPSDO (Z3801A or Thunderbolt). You may need some additional gear for Channel C such as a 8657B (1300 Mhz), a power meter/sensor, and a 50 ohm splitter.

These are great counters and do a remarkable job, especially considering their age. I truly enjoy working on them and refurbishing for others to enjoy. Choose a reliable seller - many of the "Top Sellers" will send you garbage and will not pack the equipment properly, but that is a whole separate topic. Best of luck with your decision.

Regards,

Joe, KN5U

--- In hp_agilent_equipment@..., "Max Robinson" <max@...> wrote:

If one gets one of these and it doesn't work, how repairable is it?

Regards.

Max. K 4 O DS.

Email: max@...

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----- Original Message -----
From: "Peter Gottlieb" <hpnpilot@...>
To: <hp_agilent_equipment@...>
Sent: Friday, March 15, 2013 9:54 PM
Subject: Re: [hp_agilent_equipment] Re: counter


The 5334 and 5335 also have reciprocal counting, so keep an eye out for
all of
them. Last 5334B I got I paid $40 and it was mint. It didn't have the good
timebase oscillator but I use a rubidium distributed around so didn't need
it.

These prices are insane for what you get.


On 3/15/2013 6:06 AM, adrian_microwave wrote:

Paul,

if you want to measure low frequencies with high resolution, you will
definitely want a counter with reciprocal counting. Otherwise you're
waiting
for ages, especially with audio signals.

The 5315A (w/o HPIB) and 5316A/B (w/HPIB) are the best bang for the buck,
IMO.
They are powerful tools, small, come without a noisy fan and can be had
for
stunning little money if you are a little patient.

Adrian

--- In hp_agilent_equipment@...
<mailto:hp_agilent_equipment%40yahoogroups.com>, "Paul Kraemer"
<elespe@>
wrote:

I am beginning to shop for a better frequency counter for my test bench

I don't need uhf or even vhf but I do want something HP that I can rely
on
10mhz and below

Something basically simple but not a toy. I have a couple of those
already.

Compact size and latest gee whiz item is not so important as budget,
reliability, serviceability. OK, I'd like cheap if that is possible. I
don't
mind fixing ebay finds if it isn't going to be impossible to get it
calibrated.

So many models I thought I'd start here

Thank-you

Paul K0UYA

--------------------------------------------------------------------------------

No virus found in this message.
Checked by AVG - www.avg.com <>
Version: 10.0.1430 / Virus Database: 2641/5673 - Release Date: 03/14/13


------------------------------------

Yahoo! Groups Links



85685A special cabling changes

Tim Hughes
 

I was reading through the online manuals for the 85685A pre-selector, and noticed that they show two different cabling setups in? two different manuals.

I was wondering if they are interchangeable or whether it depends on what revisions of the SA or pre-selector? you own?

The earlier 1995 (-90003) manual shows a small adapter that plugs in between? the system bus cable, just before it enters the SA itself. This is connected via a coax cable to the pre-selector. The connector cable is a BNC to SMA.

The later 1991 (-90098) user manual/programmers manual shows the same coax going to the middle of a modified system cable connector,which now has an SMA connector mounted directly on it at the display box end. The part number is stated as 85662- 60220 for the 50pin bus cable with SMA.


One might guess they are functionally identical and just save the adapter connector on the original setup?

Aparently the cable acts to adjust or blank output when the pre-scaler is changing from one band to another. The low frequency band has a number of separate prefilter bands and the high range two prefilter bands,the higher frequency one being the tuneable YAG filter. The manual also mentions tuning via varacter on some ranges.

The newer manual also says:
"Verify the SA interconnect cable (50pin0 has a HSWP IN/Out port. If not replace with the one supplied"

Does the system work, with display glitches etc if the SMA connector is not hooked up?

Can anybody throw any light on these differences and has anybody tried patching a regular cable to add a SMA adapter?

Thanks,
Tim


Re: counter

 

If one gets one of these and it doesn't work, how repairable is it?

Regards.

Max. K 4 O DS.

Email: max@...

Transistor site
Vacuum tube site:
Woodworking site
Music site:

To subscribe to the fun with transistors group send an email to.
funwithtransistors-subscribe@...

To subscribe to the fun with tubes group send an email to,
funwithtubes-subscribe@...

To subscribe to the fun with wood group send a blank email to
funwithwood-subscribe@...

----- Original Message -----
From: "Peter Gottlieb" <hpnpilot@...>
To: <hp_agilent_equipment@...>
Sent: Friday, March 15, 2013 9:54 PM
Subject: Re: [hp_agilent_equipment] Re: counter


The 5334 and 5335 also have reciprocal counting, so keep an eye out for all of
them. Last 5334B I got I paid $40 and it was mint. It didn't have the good
timebase oscillator but I use a rubidium distributed around so didn't need it.

These prices are insane for what you get.


On 3/15/2013 6:06 AM, adrian_microwave wrote:

Paul,

if you want to measure low frequencies with high resolution, you will
definitely want a counter with reciprocal counting. Otherwise you're waiting
for ages, especially with audio signals.

The 5315A (w/o HPIB) and 5316A/B (w/HPIB) are the best bang for the buck, IMO.
They are powerful tools, small, come without a noisy fan and can be had for
stunning little money if you are a little patient.

Adrian

--- In hp_agilent_equipment@...
<mailto:hp_agilent_equipment%40yahoogroups.com>, "Paul Kraemer" <elespe@...>
wrote:

I am beginning to shop for a better frequency counter for my test bench

I don't need uhf or even vhf but I do want something HP that I can rely on
10mhz and below

Something basically simple but not a toy. I have a couple of those already.

Compact size and latest gee whiz item is not so important as budget,
reliability, serviceability. OK, I'd like cheap if that is possible. I don't
mind fixing ebay finds if it isn't going to be impossible to get it
calibrated.

So many models I thought I'd start here

Thank-you

Paul K0UYA

--------------------------------------------------------------------------------

No virus found in this message.
Checked by AVG - www.avg.com <>
Version: 10.0.1430 / Virus Database: 2641/5673 - Release Date: 03/14/13


------------------------------------

Yahoo! Groups Links



8920B Saving last condition?

 

Hi,

Is there a fairly simple keyboard command that will set up the 8920B to 'hold' the last instrument settings for recall when the unit is next powered up?

It's time consuming to program 'typical' settings in memory, and even more so to keep track of the memory number of all frequently used settings when using the unit for essentially the same function on next boot after a shutdown.

Thanks......


Re: counter

Peter Gottlieb
 

The 5334 and 5335 also have reciprocal counting, so keep an eye out for all of them. Last 5334B I got I paid $40 and it was mint. It didn't have the good timebase oscillator but I use a rubidium distributed around so didn't need it.

These prices are insane for what you get.

On 3/15/2013 6:06 AM, adrian_microwave wrote:

Paul,

if you want to measure low frequencies with high resolution, you will definitely want a counter with reciprocal counting. Otherwise you're waiting for ages, especially with audio signals.

The 5315A (w/o HPIB) and 5316A/B (w/HPIB) are the best bang for the buck, IMO. They are powerful tools, small, come without a noisy fan and can be had for stunning little money if you are a little patient.

Adrian

--- In hp_agilent_equipment@... <mailto:hp_agilent_equipment%40yahoogroups.com>, "Paul Kraemer" <elespe@...> wrote:

I am beginning to shop for a better frequency counter for my test bench

I don't need uhf or even vhf but I do want something HP that I can rely on
10mhz and below

Something basically simple but not a toy. I have a couple of those already.

Compact size and latest gee whiz item is not so important as budget,
reliability, serviceability. OK, I'd like cheap if that is possible. I don't
mind fixing ebay finds if it isn't going to be impossible to get it
calibrated.

So many models I thought I'd start here

Thank-you

Paul K0UYA
--------------------------------------------------------------------------------

No virus found in this message.
Checked by AVG - www.avg.com <>
Version: 10.0.1430 / Virus Database: 2641/5673 - Release Date: 03/14/13


3709 vs 8981 monitors?

 

Hi there. Can someone explain to me the difference between what these two instruments are used for? They seem very similar.
3709a/b - Constellation Analyzer
8980/81/a/b - Vector Analyzer and HP 8981A Vector Modulation Analyzer

I did some googling but am new to IQ concepts and I could not discern the differences in the function of these units. Could a simple explanation suffice? thanks

73 Eugene W2HX


Re: counter

J. Forster
 

Congratulations, Gene.

Now you need to join the EIP_microwave Yahoo Group!

-John

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

I just bought an EIP 575B which will do 20 GHz with 1 Hz resolution. It
also has a source locking feature to steer an oscillator to phase lock it
(like a sweeper). Picked it up for $200 on ebay last night. I really like
the EIP counters (also have a 548 which goes to 26 GHz)

From: hp_agilent_equipment@...
[mailto:hp_agilent_equipment@...] On Behalf Of J. L. Trantham
Sent: Thursday, March 14, 2013 11:35 PM
To: hp_agilent_equipment@...
Subject: RE: [hp_agilent_equipment] counter



Might want to take a look at the HP 5315A and B and the 5316A and B.

I like the 5334B as well. Might want to download the manuals from the HP
website (Agilent) and look at the various options and features.

Patience will result in a good price.

Good luck.

Joe

-----Original Message-----
From:
hp_agilent_equipment@...<mailto:hp_agilent_equipment%40yahoogroups.com>
[mailto:hp_agilent_equipment@...<mailto:hp_agilent_equipment%40yahoogroups.com>]
On Behalf Of Paul Kraemer
Sent: Thursday, March 14, 2013 8:20 PM
To:
hp_agilent_equipment@...<mailto:hp_agilent_equipment%40yahoogroups.com>
Subject: [hp_agilent_equipment] counter

I am beginning to shop for a better frequency counter for my test bench

I don't need uhf or even vhf but I do want something HP that I can rely on
10mhz and below

Something basically simple but not a toy. I have a couple of those
already.

Compact size and latest gee whiz item is not so important as budget,
reliability, serviceability. OK, I'd like cheap if that is possible. I
don't
mind fixing ebay finds if it isn't going to be impossible to get it
calibrated.

So many models I thought I'd start here

Thank-you

Paul K0UYA

------------------------------------

Yahoo! Groups Links






Re: counter

 

I just bought an EIP 575B which will do 20 GHz with 1 Hz resolution. It also has a source locking feature to steer an oscillator to phase lock it (like a sweeper). Picked it up for $200 on ebay last night. I really like the EIP counters (also have a 548 which goes to 26 GHz)

From: hp_agilent_equipment@... [mailto:hp_agilent_equipment@...] On Behalf Of J. L. Trantham
Sent: Thursday, March 14, 2013 11:35 PM
To: hp_agilent_equipment@...
Subject: RE: [hp_agilent_equipment] counter



Might want to take a look at the HP 5315A and B and the 5316A and B.

I like the 5334B as well. Might want to download the manuals from the HP
website (Agilent) and look at the various options and features.

Patience will result in a good price.

Good luck.

Joe

-----Original Message-----
From: hp_agilent_equipment@...<mailto:hp_agilent_equipment%40yahoogroups.com>
[mailto:hp_agilent_equipment@...<mailto:hp_agilent_equipment%40yahoogroups.com>] On Behalf Of Paul Kraemer
Sent: Thursday, March 14, 2013 8:20 PM
To: hp_agilent_equipment@...<mailto:hp_agilent_equipment%40yahoogroups.com>
Subject: [hp_agilent_equipment] counter

I am beginning to shop for a better frequency counter for my test bench

I don't need uhf or even vhf but I do want something HP that I can rely on
10mhz and below

Something basically simple but not a toy. I have a couple of those already.

Compact size and latest gee whiz item is not so important as budget,
reliability, serviceability. OK, I'd like cheap if that is possible. I don't
mind fixing ebay finds if it isn't going to be impossible to get it
calibrated.

So many models I thought I'd start here

Thank-you

Paul K0UYA

------------------------------------

Yahoo! Groups Links


Re: HP 11664 detector cable

 

Hi Philippe,
?
I believe I have some of these. I will check and let you know.
?
Regards,
?
Jim

--- On Fri, 3/15/13, phaselock <philgievres@...> wrote:


From: phaselock <philgievres@...>
Subject: [hp_agilent_equipment] HP 11664 detector cable
To: hp_agilent_equipment@...
Date: Friday, March 15, 2013, 6:19 AM



?



I am looking an extended cable for my 11664 detector. Ineed to make somme measure 5 to 6 meters from my 8757A scalar anlyzer. If somebody have this cable i am interesting. Best regards.
Philippe








[Non-text portions of this message have been removed]


HP 11664 detector cable

 

I am looking an extended cable for my 11664 detector. Ineed to make somme measure 5 to 6 meters from my 8757A scalar anlyzer. If somebody have this cable i am interesting. Best regards.
Philippe


Re: counter

 

Paul,

if you want to measure low frequencies with high resolution, you will definitely want a counter with reciprocal counting. Otherwise you're waiting for ages, especially with audio signals.

The 5315A (w/o HPIB) and 5316A/B (w/HPIB) are the best bang for the buck, IMO. They are powerful tools, small, come without a noisy fan and can be had for stunning little money if you are a little patient.

Adrian

--- In hp_agilent_equipment@..., "Paul Kraemer" <elespe@...> wrote:

I am beginning to shop for a better frequency counter for my test bench

I don't need uhf or even vhf but I do want something HP that I can rely on
10mhz and below

Something basically simple but not a toy. I have a couple of those already.

Compact size and latest gee whiz item is not so important as budget,
reliability, serviceability. OK, I'd like cheap if that is possible. I don't
mind fixing ebay finds if it isn't going to be impossible to get it
calibrated.

So many models I thought I'd start here

Thank-you

Paul K0UYA