|
Finally picked up a nice power sensor and have a "slightly dysfunctional" meter for it coming, hopefully the meter is an easy fix. This should address my power measurement guesstimates at least!
I also managed to get a "not quite accurate, but calibrated against a good standard" diode head for the HP meter. It's off by about 3dB, but the seller was a t&m collector and had access to some good standards to calibrate against, so while it is "out" at least I know how much it is "out" by!
I also picked up a nice Marconi/IFR 100khz to 20GHz sweeper/sig gen a while ago that addresses another missing piece of the puzzle ... just need a decent 26g analyzer now to add to the 1.8G HP and I think my thirst for measurement gear will be (temporarily) abated!
-- Best regards,
Robin Szemeti
Redpoint Consulting Limited
E: robin@...
T: +44 (0) 1299 405028
M: +44 (0) 7971 883371
CONFIDENTIALITY NOTICE
The information contained in this e-mail is intended only for the
confidential use of the above named recipient. If you are not the
intended recipient or person responsible for delivering it to the
intended recipient, you have received this communication in error
and must not distribute or copy it.
Please accept the sender's apologies, notify the sender immediately
by return e-mail and delete this communication.
Thank you.
-- Robin Szemeti - G1YFG
|
|
|
Clint Sharp <cjaysharp@...>
Hi, my name is Clint and I'm a Test Equipment Addict, I own two spectrum analysers, several power meters, heads, I've lost count of the number of scopes, multimeters, sig gens, sensors, adapters, analysers etc. etc. and I still cast covetous eyes on test equipment auctions, catalogues etc.
Just give in to it, it makes life easier.
On Wed, 21 Oct 2020, 22:39 Robin Szemeti - G1YFG, < robin@...> wrote: Finally picked up a nice power sensor and have a "slightly dysfunctional" meter for it coming, hopefully the meter is an easy fix. This should address my power measurement guesstimates at least!
I also managed to get a "not quite accurate, but calibrated against a good standard" diode head for the HP meter. It's off by about 3dB, but the seller was a t&m collector and had access to some good standards to calibrate against, so while it is "out" at least I know how much it is "out" by!
I also picked up a nice Marconi/IFR 100khz to 20GHz sweeper/sig gen a while ago that addresses another missing piece of the puzzle ... just need a decent 26g analyzer now to add to the 1.8G HP and I think my thirst for measurement gear will be (temporarily) abated!
-- Best regards,
Robin Szemeti
Redpoint Consulting Limited
E: robin@...
T: +44 (0) 1299 405028
M: +44 (0) 7971 883371
CONFIDENTIALITY NOTICE
The information contained in this e-mail is intended only for the
confidential use of the above named recipient. If you are not the
intended recipient or person responsible for delivering it to the
intended recipient, you have received this communication in error
and must not distribute or copy it.
Please accept the sender's apologies, notify the sender immediately
by return e-mail and delete this communication.
Thank you.
--
Robin Szemeti - G1YFG
|
|
|
Hi Robin
Regarding the "slightly
dysfunctional" meter
If you are talking about a Marconi
6960 B then watch out for the IEC socket as it is also a mains
filter and they have a tendency to go bang
I hade 3 Marconi 6960 B on
soak test a few years ago and within 48 hours 2 of the 3 blow their
IEC mans filters replaced the IEC mans filters and all was OK
and don’t forget the Marconi lead is
not compatible with the HP power meter
Re a 26 Ghz analyzer these tend to be expensive suggest
you look at a 18 or 22 Ghz analyser but go for one with a preselector
and external mixer facility
Then you can use an external mixer for 24
Ghz
A good combination is the HP 8569 and
a HP 11970 wave guide mixer either the 18 – 26 Ghz
or the 26-40 Ghz will be OK for 24 Ghz as it is
good to below 22 Ghz
A less expensive option is the HP8565
and this can use any single point external mixer as the dyplexer is inside the
analyser
Feale free to PM me for more information on
HP test equipment
Paul
From:
UKMicrowaves@groups.io [mailto:UKMicrowaves@groups.io] On Behalf Of Robin Szemeti - G1YFG
Sent: 21 October 2020 22:39
To: UKMicrowaves@groups.io
Subject: [UKMicrowaves] New to me
...
Finally picked up a nice power sensor and have a "slightly
dysfunctional" meter for it coming, hopefully the meter is an easy
fix. This should address my power measurement guesstimates at
least!
I also managed to get a "not quite accurate, but calibrated
against a good standard" diode head for the HP meter.
It's off by about 3dB, but the seller was a t&m collector and had access to
some good standards to calibrate against, so while it is "out" at
least I know how much it is "out" by!
I also picked up a nice Marconi/IFR 100khz to 20GHz sweeper/sig gen a
while ago that addresses another missing piece of the puzzle ... just need a
decent 26g analyzer now to add to the 1.8G HP and I think my thirst for
measurement gear will be (temporarily) abated!
--
Best regards,
Robin Szemeti
Redpoint Consulting Limited
E: robin@...
T: +44 (0) 1299 405028
M: +44 (0) 7971 883371
CONFIDENTIALITY NOTICE
The information contained in this e-mail is intended only for the
confidential use of the above named recipient. If you are not the
intended recipient or person responsible for delivering it to the
intended recipient, you have received this communication in error
and must not distribute or copy it.
Please accept the sender's apologies, notify the sender immediately
by return e-mail and delete this communication.
Thank you.
--
Robin Szemeti - G1YFG
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2016.0.8048 / Virus Database: 4793/15886 - Release Date: 08/14/18
Internal Virus Database is out of date.
-- Paul Bicknell G8KFW South Coast UK
|
|
|
Yep, 6960B, picked one up on eBay for £40, apparently does not recognise heads .. but its all fairly simple discrete logic etc, and he confirmed it did power up and run, most likely a broken wire, they use different voltage zeners to select head type.
Thanks for the tip re HP leads/heads. I was going to just make up a lead fro the HP from plugs from Farnell.
On Thu, 22 Oct 2020 at 00:47, Paul G8KFW < paul@...> wrote:
Hi Robin
Regarding the "slightly
dysfunctional" meter
If you are talking about a Marconi
6960 B then watch out for the IEC socket as it is also a mains
filter and they have a tendency to go bang
I hade 3 Marconi 6960 B on
soak test a few years ago and within 48 hours 2 of the 3 blow their
IEC mans filters replaced the IEC mans filters and all was OK
and don’t forget the Marconi lead is
not compatible with the HP power meter
Re a 26 Ghz analyzer these tend to be expensive suggest
you look at a 18 or 22 Ghz analyser but go for one with a preselector
and external mixer facility
Then you can use an external mixer for 24
Ghz
A good combination is the HP 8569 and
a HP 11970 wave guide mixer either the 18 – 26 Ghz
or the 26-40 Ghz will be OK for 24 Ghz as it is
good to below 22 Ghz
A less expensive option is the HP8565
and this can use any single point external mixer as the dyplexer is inside the
analyser
Finally picked up a nice power sensor and have a "slightly
dysfunctional" meter for it coming, hopefully the meter is an easy
fix. This should address my power measurement guesstimates at
least!
I also managed to get a "not quite accurate, but calibrated
against a good standard" diode head for the HP meter.
It's off by about 3dB, but the seller was a t&m collector and had access to
some good standards to calibrate against, so while it is "out" at
least I know how much it is "out" by!
I also picked up a nice Marconi/IFR 100khz to 20GHz sweeper/sig gen a
while ago that addresses another missing piece of the puzzle ... just need a
decent 26g analyzer now to add to the 1.8G HP and I think my thirst for
measurement gear will be (temporarily) abated!
--
Best regards,
Robin Szemeti
Redpoint Consulting Limited
E: robin@...
T: +44 (0) 1299 405028
M: +44 (0) 7971 883371
CONFIDENTIALITY NOTICE
The information contained in this e-mail is intended only for the
confidential use of the above named recipient. If you are not the
intended recipient or person responsible for delivering it to the
intended recipient, you have received this communication in error
and must not distribute or copy it.
Please accept the sender's apologies, notify the sender immediately
by return e-mail and delete this communication.
Thank you.
--
Robin Szemeti - G1YFG
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2016.0.8048 / Virus Database: 4793/15886 - Release Date: 08/14/18
Internal Virus Database is out of date.
--
Paul Bicknell G8KFW South Coast UK
--
Robin Szemeti - G1YFG
|
|
|
Regarding 6960B not
recognising the sensor there is often a socket for the sensor on the back of
the unit and this could be the one in use
just open it up and you can easily change it so the front socket is
useable
Re leads
The Marconi use a special cable but
it appears that providing you use short lengths (1.5 Mt ) you can
use nearly any think but better results ( less noise when using the low range )
are by using the lay of the cable so you
don’t have input and driver signals next to each other
Never made up a HP cable but again
just keep the length short
The best plugs are made by Binder and sold
by Farnell ( lovely company to deal with ) they have 3 versions and did cost
between £10 and £15 each
Marconi started with the cheep version
then went to the expensive version as they have a better cable grip
Regards Paul
From:
UKMicrowaves@groups.io [mailto:UKMicrowaves@groups.io] On Behalf Of Robin Szemeti - G1YFG
Sent: 22 October 2020 01:56
To: UKMicrowaves@groups.io
Subject: Re: [UKMicrowaves] New to
me ...
Yep, 6960B, picked one up on eBay for £40, apparently does
not recognise heads .. but its all fairly simple discrete logic etc, and he
confirmed it did power up and run, most likely a broken wire, they use
different voltage zeners to select head type.
Thanks for the tip re HP leads/heads. I was going to just make up a
lead fro the HP from plugs from Farnell.
On Thu, 22 Oct 2020 at 00:47, Paul G8KFW <paul@...> wrote:
Hi Robin
Regarding the "slightly
dysfunctional" meter
If you are talking about a Marconi
6960 B then watch out for the IEC socket as it is also a mains
filter and they have a tendency to go bang
I hade 3 Marconi 6960 B
on soak test a few years ago and within 48 hours 2 of
the 3 blow their IEC mans filters replaced the IEC mans filters and all was OK
and don’t forget the Marconi lead is
not compatible with the HP power meter
Re a 26 Ghz analyzer these tend to be expensive
suggest you look at a 18 or 22 Ghz analyser but go for one with a
preselector and external mixer facility
Then you can use an external mixer for 24
Ghz
A good combination is the HP 8569 and
a HP 11970 wave guide mixer either the 18 – 26
Ghz or the 26-40 Ghz will be OK for 24 Ghz
as it is good to below 22 Ghz
A less expensive option is the HP8565
and this can use any single point external mixer as the dyplexer is inside the
analyser
Finally picked up a nice power sensor and have a "slightly
dysfunctional" meter for it coming, hopefully the meter is an easy
fix. This should address my power measurement guesstimates at
least!
I also managed to get a "not quite accurate, but calibrated
against a good standard" diode head for the HP meter.
It's off by about 3dB, but the seller was a t&m collector and had access to
some good standards to calibrate against, so while it is "out" at
least I know how much it is "out" by!
I also picked up a nice Marconi/IFR 100khz to 20GHz sweeper/sig gen a
while ago that addresses another missing piece of the puzzle ... just need a
decent 26g analyzer now to add to the 1.8G HP and I think my thirst for
measurement gear will be (temporarily) abated!
Best regards,
Robin Szemeti
Redpoint Consulting Limited
E: robin@...
T: +44 (0) 1299 405028
M: +44 (0) 7971 883371
Thank you.
Robin Szemeti -
G1YFG
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2016.0.8048 / Virus Database: 4793/15886 - Release Date: 08/14/18
Internal Virus Database is out of date.
Paul Bicknell G8KFW South
Coast UK
Robin Szemeti - G1YFG
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2016.0.8048 / Virus Database: 4793/15886 - Release Date: 08/14/18
Internal Virus Database is out of date.
-- Paul Bicknell G8KFW South Coast UK
|
|
|
The marconi head came with a lead, so I hope I am good for that. I'll look for some combi cable with at least two screened cores to make up the HP lead. I always knew thos connectors as "tuschel DIN" ... they were used on the ancient "storno 500" handhelds ...
I use farnell a lot, great company, my "go to" supplier for anything really.
On Thu, 22 Oct 2020 at 02:35, Paul G8KFW < paul@...> wrote:
Regarding 6960B not
recognising the sensor there is often a socket for the sensor on the back of
the unit and this could be the one in use
just open it up and you can easily change it so the front socket is
useable
Re leads
The Marconi use a special cable but
it appears that providing you use short lengths (1.5 Mt ) you can
use nearly any think but better results ( less noise when using the low range )
are by using the lay of the cable so you
don’t have input and driver signals next to each other
Never made up a HP cable but again
just keep the length short
The best plugs are made by Binder and sold
by Farnell ( lovely company to deal with ) they have 3 versions and did cost
between £10 and £15 each
Marconi started with the cheep version
then went to the expensive version as they have a better cable grip
Regards Paul
Yep, 6960B, picked one up on eBay for £40, apparently does
not recognise heads .. but its all fairly simple discrete logic etc, and he
confirmed it did power up and run, most likely a broken wire, they use
different voltage zeners to select head type.
Thanks for the tip re HP leads/heads. I was going to just make up a
lead fro the HP from plugs from Farnell.
On Thu, 22 Oct 2020 at 00:47, Paul G8KFW <paul@...> wrote:
Hi Robin
Regarding the "slightly
dysfunctional" meter
If you are talking about a Marconi
6960 B then watch out for the IEC socket as it is also a mains
filter and they have a tendency to go bang
I hade 3 Marconi 6960 B
on soak test a few years ago and within 48 hours 2 of
the 3 blow their IEC mans filters replaced the IEC mans filters and all was OK
and don’t forget the Marconi lead is
not compatible with the HP power meter
Re a 26 Ghz analyzer these tend to be expensive
suggest you look at a 18 or 22 Ghz analyser but go for one with a
preselector and external mixer facility
Then you can use an external mixer for 24
Ghz
A good combination is the HP 8569 and
a HP 11970 wave guide mixer either the 18 – 26
Ghz or the 26-40 Ghz will be OK for 24 Ghz
as it is good to below 22 Ghz
A less expensive option is the HP8565
and this can use any single point external mixer as the dyplexer is inside the
analyser
Finally picked up a nice power sensor and have a "slightly
dysfunctional" meter for it coming, hopefully the meter is an easy
fix. This should address my power measurement guesstimates at
least!
I also managed to get a "not quite accurate, but calibrated
against a good standard" diode head for the HP meter.
It's off by about 3dB, but the seller was a t&m collector and had access to
some good standards to calibrate against, so while it is "out" at
least I know how much it is "out" by!
I also picked up a nice Marconi/IFR 100khz to 20GHz sweeper/sig gen a
while ago that addresses another missing piece of the puzzle ... just need a
decent 26g analyzer now to add to the 1.8G HP and I think my thirst for
measurement gear will be (temporarily) abated!
Best regards,
Robin Szemeti
Redpoint Consulting Limited
E: robin@...
T: +44 (0) 1299 405028
M: +44 (0) 7971 883371
Thank you.
Robin Szemeti -
G1YFG
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2016.0.8048 / Virus Database: 4793/15886 - Release Date: 08/14/18
Internal Virus Database is out of date.
Paul Bicknell G8KFW South
Coast UK
Robin Szemeti - G1YFG
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2016.0.8048 / Virus Database: 4793/15886 - Release Date: 08/14/18
Internal Virus Database is out of date.
--
Paul Bicknell G8KFW South Coast UK
--
Robin Szemeti - G1YFG
|
|
|
Well, Paul ... you were spot on. I left the meter connected for a while and sure enough, it went bang, with the usual horrible smell from the mains filter.
It still has some other fault, I shall keep investigating.
On Thu, 22 Oct 2020 at 00:47, Paul G8KFW < paul@...> wrote:
Hi Robin
Regarding the "slightly
dysfunctional" meter
If you are talking about a Marconi
6960 B then watch out for the IEC socket as it is also a mains
filter and they have a tendency to go bang
I hade 3 Marconi 6960 B on
soak test a few years ago and within 48 hours 2 of the 3 blow their
IEC mans filters replaced the IEC mans filters and all was OK
and don’t forget the Marconi lead is
not compatible with the HP power meter
Re a 26 Ghz analyzer these tend to be expensive suggest
you look at a 18 or 22 Ghz analyser but go for one with a preselector
and external mixer facility
Then you can use an external mixer for 24
Ghz
A good combination is the HP 8569 and
a HP 11970 wave guide mixer either the 18 – 26 Ghz
or the 26-40 Ghz will be OK for 24 Ghz as it is
good to below 22 Ghz
A less expensive option is the HP8565
and this can use any single point external mixer as the dyplexer is inside the
analyser
Finally picked up a nice power sensor and have a "slightly
dysfunctional" meter for it coming, hopefully the meter is an easy
fix. This should address my power measurement guesstimates at
least!
I also managed to get a "not quite accurate, but calibrated
against a good standard" diode head for the HP meter.
It's off by about 3dB, but the seller was a t&m collector and had access to
some good standards to calibrate against, so while it is "out" at
least I know how much it is "out" by!
I also picked up a nice Marconi/IFR 100khz to 20GHz sweeper/sig gen a
while ago that addresses another missing piece of the puzzle ... just need a
decent 26g analyzer now to add to the 1.8G HP and I think my thirst for
measurement gear will be (temporarily) abated!
--
Best regards,
Robin Szemeti
Redpoint Consulting Limited
E: robin@...
T: +44 (0) 1299 405028
M: +44 (0) 7971 883371
CONFIDENTIALITY NOTICE
The information contained in this e-mail is intended only for the
confidential use of the above named recipient. If you are not the
intended recipient or person responsible for delivering it to the
intended recipient, you have received this communication in error
and must not distribute or copy it.
Please accept the sender's apologies, notify the sender immediately
by return e-mail and delete this communication.
Thank you.
--
Robin Szemeti - G1YFG
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2016.0.8048 / Virus Database: 4793/15886 - Release Date: 08/14/18
Internal Virus Database is out of date.
--
Paul Bicknell G8KFW South Coast UK
--
Robin Szemeti - G1YFG
|
|
|
Hi Robin
OK on the Mains filter
Did I also mention there is a socket on
the back for the power meter and a lot are configured not to use the socket on
the front it can be easily changed inside
Regards Paul
From:
UKMicrowaves@groups.io [mailto:UKMicrowaves@groups.io] On Behalf Of Robin Szemeti - G1YFG
Sent: 28 October 2020 16:21
To: UKMicrowaves@groups.io
Subject: Re: [UKMicrowaves] New to
me ...
Well, Paul ... you were spot on. I left the meter connected
for a while and sure enough, it went bang, with the usual horrible smell from
the mains filter.
It still has some other fault, I shall keep investigating.
On Thu, 22 Oct 2020 at 00:47, Paul G8KFW <paul@...> wrote:
Hi Robin
Regarding the "slightly
dysfunctional" meter
If you are talking about a Marconi
6960 B then watch out for the IEC socket as it is also a mains
filter and they have a tendency to go bang
I hade 3 Marconi 6960 B
on soak test a few years ago and within 48 hours 2 of
the 3 blow their IEC mans filters replaced the IEC mans filters and all was OK
and don’t forget the Marconi lead is
not compatible with the HP power meter
Re a 26 Ghz analyzer these tend to be expensive
suggest you look at a 18 or 22 Ghz analyser but go for one with a
preselector and external mixer facility
Then you can use an external mixer for 24
Ghz
A good combination is the HP 8569 and
a HP 11970 wave guide mixer either the 18 – 26
Ghz or the 26-40 Ghz will be OK for 24 Ghz
as it is good to below 22 Ghz
A less expensive option is the HP8565
and this can use any single point external mixer as the dyplexer is inside the
analyser
Finally picked up a nice power sensor and have a "slightly
dysfunctional" meter for it coming, hopefully the meter is an easy
fix. This should address my power measurement guesstimates at
least!
I also managed to get a "not quite accurate, but calibrated
against a good standard" diode head for the HP meter.
It's off by about 3dB, but the seller was a t&m collector and had access to
some good standards to calibrate against, so while it is "out" at
least I know how much it is "out" by!
I also picked up a nice Marconi/IFR 100khz to 20GHz sweeper/sig gen a
while ago that addresses another missing piece of the puzzle ... just need a
decent 26g analyzer now to add to the 1.8G HP and I think my thirst for
measurement gear will be (temporarily) abated!
Best regards, Robin
Szemeti
Redpoint Consulting Limited
E: robin@...
T: +44 (0) 1299 405028
M: +44 (0) 7971 883371
Robin Szemeti - G1YFG
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2016.0.8048 / Virus Database: 4793/15886 - Release Date: 08/14/18
Internal Virus Database is out of date.
--
Paul Bicknell G8KFW South
Coast UK
Robin Szemeti - G1YFG
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2016.0.8048 / Virus Database: 4793/15886 - Release Date: 08/14/18
Internal Virus Database is out of date.
-- Paul Bicknell G8KFW South Coast UK
|
|
|
