That's relatively good news. I
see the two main hotels? (Fountaingrove and Hilton ) weren't so lucky.
I'm still concerned about the homes of many friends.
Daun
Daun E. Yeagley II, N8ASB
Sent with AquaMail for Android
On
October 9, 2017 11:50:01 PM "caesarv@...
[hp_agilent_equipment]"
wrote:
?
As some of you may know, Keysight's home of Santa
Rosa, CA suffered a major fire.? Thousands of homes were destroyed as
the fire raced down the hillside where Keysight is located.? ABC News
(our ch 7) improperly reported that the entire Keysight compound was
completely destroyed.? In actuality, only two temporary (modular)
buildings were burned.? This is a tiny fraction of the floor
space.? A few rental cars also burned. We did lose our credit union
office but that is why we have ATM
cards.
Never trust a singular
source of news
data.
|
Re: 8901B Power level zeroisation
toggle quoted message
Show quoted text
-----Original Message----- From: "xhfeng2002@... [hp_agilent_equipment]" <hp_agilent_equipment@...>
Sent: Oct 9, 2017 3:38 PM
To: hp_agilent_equipment@...
Subject: [hp_agilent_equipment] Re: 8901B Power level zeroisation
I got a Boonton 8210 modulation meter dirt cheap a while ago. I bought a Boonton 82AD Modulation Meter for under $40, but I haven't cleaned it up and tested it yet. Michael A. Terrell
|
As some of you may know, Keysight's home of Santa Rosa, CA suffered a major fire.? Thousands of homes were destroyed as the fire raced down the hillside where Keysight is located.? ABC News (our ch 7) improperly reported that the entire Keysight compound was completely destroyed.? In actuality, only two temporary (modular) buildings were burned.? This is a tiny fraction of the floor space.? A few rental cars also burned. We did lose our credit union office but that is why we have ATM cards.
Never trust a singular source of news data.
|
Re: Avantek SPP90 amplifier
Hello all,
Its alright Ed. I thank you for your replies. I'm currently in not too much of a rush at this time. Planning to swap this component around late fall or winter. The bench was relocated from a nice A/C room to a "hot box" called the gulf coast climate in preparation for a move that is on going.
I did more reading and it turns out this pdf is so close but not enough. There are 4 databooks in total (page 1-7 "How to use the databook series") with the pdf I posted being one of them. I need 10 MHz to 3000 MHz / 3 GHz at least. The data book I posted only has components going up to 2000 MHz / 2 GHz at most.
So currently, of interest to my case is the databook from Avantek labeled "Microwave and Millimeter Wave Amplifier Data Book".?I usually arrive at a dead end on google unfortunately. I think I can send an email or two but I'm not sure if they are available anymore.
Some more random searches of Avantek components reveal the reason why I came here. Google "PPA-517R" for example.?There is a databook from HP themselves or rather Avantek had HP's name on the datasheets after it was aquired in 1991. The component I have is date coded for 1994. If anyone has anything around that date or can point me where to go it would be appreciated.
Right now I'm trying to break down what "SPP-90" stands for. PP I guess stands for Planar Pak. This can't be a switch either. I know it isn't from the design of the circuit. It has to be some sort of amp with +15V (??mA) constantly going thru its DC bias. S and 90 I have no clue. Is there a modern equivalent of the package name for "planar pak"? SMTO - 8 or SM - 25? I'm going off of a successor of Avantek (Cougar/Teledyne).
-Lex ?
|
Re: HP854A Test Oscillator with worn out attenuator
Low frequency distortion is likely a capacitor failure.? First check
the power supply ripple, then the electrolytics in the feedback
signal path, then the main signal path.? I would start with A2C3,
2900uf, as it is only in circuit on the low range and is part of the
level feedback signal.? Next, A2C5 and A2C11, A2C13, etc.
Dave
On 10/9/2017 1:57 PM, krizhz@...
[hp_agilent_equipment] wrote:
toggle quoted message
Show quoted text
Hi Alan Bill and Dennis. Thank you for your helpful
replies.Unfortunately, the attenuator switch is not similar to the
HP652a, it's a double 16 pole 10 way (balanced with 1 dB and 10 dB
steps). Today I've tried various cleaners and I think the problem
was old switch lubricant that had hardened. After soaking it in
Electrolube, and spraying it with a strong detergent (Power Force
kitchen cleaner) it was rinsed with boiling water. Now, after
drying, it looks good. The only problem is that? the waveform is
distorted when the frequency is below 50 Hz.
|
Re: Chinese-made reflow soldering ovens
I also bought the T962 in order to solder SMD packages with power pads. Did not apply firmware change, but used the kapton tape mod. Another error i found and not mentioned in www was a safety failure. The mains protective ground is connected to the metal case in such a clever way that the case remains isolated, which means: No protective ground. Basically the machine works, but is electrically unsafe (illegal!). I soldered 20 boards, two each time, no problem at all except strong (poisonous?) smell.
|
Re: 8901B Power level zeroisation
I got a boonton 8210 modulation meter dirt cheap a while ago.
|
Re: HP854A Test Oscillator with worn out attenuator
Hi Alan Bill and Dennis. Thank you for your helpful replies.Unfortunately, the attenuator switch is not similar to the HP652a, it's a double 16 pole 10 way (balanced with 1 dB and 10 dB steps). Today I've tried various cleaners and I think the problem was old switch lubricant that had hardened. After soaking it in Electrolube, and spraying it with a strong detergent (Power Force kitchen cleaner) it was rinsed with boiling water. Now, after drying, it looks good. The only problem is that? the waveform is distorted when the frequency is below 50 Hz.
|
Re: Avantek SPP90 amplifier
Sorry Lex, I didn't reply with info back then, because I was under the impression that you had already found what you needed. The link you listed, from the title, seems to be exactly the databook I have on paper, so I can't add any new info.? Good luck with your searching.
Ed
|
Re: HP854A Test Oscillator with worn out attenuator
Please find attached Attenuator Circuit Diagram. Whole Manual way too big too send.
From: hp_agilent_equipment@... [mailto:hp_agilent_equipment@...]
Sent: Monday, October 09, 2017 12:08 PM
To: hp_agilent_equipment@...
Subject: Re: [hp_agilent_equipment] HP854A Test Oscillator with worn out attenuator
I seem to have a box of parts mostly related to HP 652A. Do you have a Schematic to compare 652A to 654A Range Switch and Attenuator Switch? If you do, would you post the schematic for the 654A switches? Google did not turn up complete schematics for 654A. I would test these to see if they are good.
Dennis
--------------------------------------------
On Sun, 10/8/17, krizhz@... [hp_agilent_equipment] <hp_agilent_equipment@...> wrote:
Subject: [hp_agilent_equipment] HP854A Test Oscillator with worn out attenuator
To: hp_agilent_equipment@...
Date: Sunday, October 8, 2017, 12:29 PM
Hello
I found this 854A on eBay recently and
thought I could fix it. Unfortunately the frequency range
switch is rather worn and the attenuator seems to be beyond
repair.
[Non-text portions of this message have been removed]
|
Re: HP854A Test Oscillator with worn out attenuator
I seem to have a box of parts mostly related to HP 652A. Do you have a Schematic to compare 652A to 654A Range Switch and Attenuator Switch? If you do, would you post the schematic for the 654A switches? Google did not turn up complete schematics for 654A. I would test these to see if they are good.
Dennis
--------------------------------------------
toggle quoted message
Show quoted text
On Sun, 10/8/17, krizhz@... [hp_agilent_equipment] <hp_agilent_equipment@...> wrote:
Subject: [hp_agilent_equipment] HP854A Test Oscillator with worn out attenuator
To: hp_agilent_equipment@...
Date: Sunday, October 8, 2017, 12:29 PM
Hello
I found this 854A on eBay recently and
thought I could fix it. Unfortunately the frequency range
switch is rather worn and the attenuator seems to be beyond
repair.
|
Hi Adam, ? I was looking around and found this relatively recent thread on EEVBlog. I didn’t have time to read it in detail, but it looks like it may have some relevant info for you. ? ? Let me know what you think!
Regards, Stan ?
toggle quoted message
Show quoted text
From: hp_agilent_equipment@... [mailto:hp_agilent_equipment@...] Sent: Sunday, October 08, 2017 3:16 PM To: hp_agilent_equipment@... Subject: [hp_agilent_equipment] Re: Hp 70909A vs 70910A ? ? ? I'm located in the Panhandle of Florida, in Shalimar which is just north of Destin on the Bay. One mistake in my previous post is that the total size of the files on the internal memory is closer to 115K rather than 700K.? These files would all fit on a 128K memory card if I can locate one. The issue I'm experiencing is that the firmware within the 70900A seems to be a modified subset of RMB that does not seem to support standard file transfer functions such as those that allow copy of files between storage devices.? So even if I did hook up an HPIB disk or obtain a 128K card for the 70004A, I don't see how I would instruct the 70900 to copy the files somewhere other than the internal storage. This is troubling because I know the internal lithium 3.6V battery is likely to be near the end of it's life, and from what I read in the manual, the RX_Mode program (as well as all other DLPs on the internal memory) will be lost. As for RMB, I do have several machines that run this natively on the 68K processors (VIPER card, 382 VXI system, etc).? But I don't see how these would help over the GPIB?? Separately, I am interested in obtaining the calibration software, which I expect I can run on these machines. The firmware in this 70900A is Rev 960418 (B.06.03). I am talking to the instrument via GPIB and ran a CATALOG? which produced the following listing.? 0876544,0760828 CONFIG,CONFIG,0012938 LARGEST,LARGEST,0760810 ,AG???? 00042 A_AT__,G????? 01436 A_CF__,G????? 00296 A_DELETE__,G????? 00242 A_I_GAIN__,G????? 00106 A_I_OFF__,G????? 00108 A_IQ_QD__,G????? 00106 A_IFBW__,G???? ?01512 A_NFMOFF__,G????? 00190 A_Q_GAIN__,G????? 00106 A_Q_OFF__,G????? 00108 A_RECALL__,G????? 00306 A_SAVE__,G????? 00244 A_SP__,G????? 00250 A_VBR__,G????? 00188 A_WFMOFF__,G????? 00190 AT_AUTO__,G????? 00054 AT_MAN__,G????? 00052 A_SG__,G????? 02806 A_VB__,G????? 01500 BEGIN_RX__,G????? 00532 CUST_FLTRS__,G????? 00170 DELETE__,G????? 00158 DEMOD_AM__,G????? 00172 DEMOD_IQ__,G????? 00420 DEMOD_NFM__,G????? 00272 DEMOD_KEYS__,G?? ???00518 DEMOD_PU__,G????? 00178 DEMOD_WFM__,G????? 00272 DISP_MSG__,G????? 00162 DSP_ONOFF__,G????? 00454 GET_MSI__,G????? 00240 H__,G????? 18708 INSTALL_IP__,G????? 00156 MSI_HPIB__,G????? 00230 MSI_INT__,G????? 00228 MSI_MSIB__,G????? 00230 OPTIONS__,G????? 00118 PR_ONOFF__,G????? 00252 PRESEL__,G????? 00234 RD_CPL__,G????? 00854 RECALL__,G????? 00158 REDISP__,G????? 00328 RFIF_GN__,G????? 00962 RUN_TMPCMP__,G????? 00120 RX_BW__,G????? 00616 RX_BW_MORE__,G????? 00550 RX_DEMOD__,G????? 00172 RX_FREQ__,G????? 00520 RX_GAIN__,G????? 01100 RX_HELP__,G????? 03066 RX_MISC__,G????? 00512 RX_MODE_,G????? 00150 RX_RTN__,G????? 00338 RX_RTN_LS__,G????? 00210 RX_RTN_NS__,G????? 00282 RX_RTN_FS__,G????? 00148 SAVE_RCL__,G????? 00468 SET_ONEOS__,G????? 00082 SAVE_STATE__,G????? 00202 SAVE__,G????? 00144 SG_AUTO__,G????? 00054 SG_MAN__,G????? 00052 SHOW_ANNOT__,G????? 00098 SHOW_VERS__,G????? 00118 RX_ERR__,G????? 01562 RX_INIT__,G????? 01808 RX_SV_RCL__,G????? 08346 RXRMT,G????? 09810 SHOWRX__,G????? 09772 TEMP_COMP__,G????? 00274 TOP_KEYS__,G????? 00314 TRAVGONOFF__,G????? 00296 UNITSKEYS__,G????? 00702 UNITSMENU__,G????? 00118 UNITS_CPL__,G????? 00274 UNITS_DBM__,G????? 00120 UNITS_DBMV__,G????? 00122 UNITS_DBUV__,G????? 00122 UNITS_V__,G????? 00120 UNITS_W__,G????? 00120 UPD_SCRN__,G????? 00442 USER_KEY__,G????? 00226 V_AF_FLAG,G????? 00048 V_AT,G????? 00048 V_AUNITS,G????? 00048 V_CF,G????? 00048 V_CFKEYSET,G????? 00048 V_COUPLED,G????? 00048 V_DEMOD,G????? 00048 V_DISP,G????? 00048 V_HELP,G????? 00048 V_I_GAIN,G????? 00048 V_I_OFFSET,G????? 00048 V_IFB,G????? 00048 V_IF_GAIN,G????? 00048 V_IQ_QUAD,G????? 00048 V_KEYSET,G????? 00048 V_MENU,G????? 00048 V_MSI,G????? 00048 V_ROFFSET,G????? 00048 V_NFM_OFF,G????? 00048 V_OPT_FM,G????? 00048 V_OPT_IQ,G????? 00048 V_PR_COL,G????? 00048 V_PR_INPUT,G????? 00048 V_PR_ROW,G????? 00048 V_Q_GAIN,G????? 00048 V_Q_OFFSET,G????? 00048 V_SG,G????? 00048 V_SP,G????? 00048 V_TRAVG,G????? 00048 V_VB,G????? 00048 V_WFM_OFF,G????? 00048 VOID__,G????? 00040 WBIF__,G????? 14844 u_910,G????? 00884 V_911_CAL,G????? 00048 V_911_COL,G????? 00048 V_911_REV,G????? 00048 V_911_ROW,G????? 00048 ONWINDOW,DG???? 00050 TRD,G? ????02084 s_1,G????? 01122 SA_s_0,G????? 01122 CUST_FLTR,G????? 00376 PR_ON_AC,G????? 00520 PR_OFF_AC,G????? 00520 ONEOS,G????? 00064 ONUSER,G????? 00052 ? ---In hp_agilent_equipment@..., <paul@...> wrote : Hi Adam Regarding 70000 I have not spent any time on the subject over the summer due to other commitments so Firstly could you let the group have your general location so that local help might be found as I am no expert? ? I am told you require a HP 9000 computer system running basic 5.1 or later a hard drive and a floppy either 5.25 or 3.5 and I am well on the way to achieving this Please note the hard and floppy drives for the HP 9000 computer system are very fragile and I haven’t found any replacements ? Regards Paul B ? Paul
Responding to your older post about the 70910A Receiver Personality software.? I have it loaded on my system and desire to archive it.? Perhaps someone here can offer me some ideas on how to do this/talk me through it?? I'm concerned that I don't corrupt or accidentally delete any of the files while I'm at it.? I have a couple 32KB cards, but the total size of the files is about 700K or so.? I don't have the 9122 series floppy drive.? Any thoughts on copying these files over the GPIB to hard disc so I can post them to KO4BB for posterity (and system safety/longevity)?
Adam No virus found in this message.
Checked by AVG -
Version: 2016.0.8013 / Virus Database: 4782/15017 - Release Date: 10/08/17
|
Re: Chinese-made reflow soldering ovens
SMD oven vrs a Hot plate
I’ve not had much success with these low cost ovens, I’ve found they overheat and suffer from hot spots, I guess a case of you get what you pay for. I now use a hot plate, the temperature is far easier to control, and you can correct parts if required during the process.
Harry
From: 'Dave M' dgminala@... [hp_agilent_equipment]
Sent: 08 October 2017 21:40
To: Yahoo Agilent Eqpt; Yahoo DipTrace; Yahoo Fluke_DMM; Yahoo Homebrew_PCB; Yahoo Tekscopes
Subject: [hp_agilent_equipment] Chinese-made reflow soldering ovens
?
Anyone have any experience or have colleagues who have experience using the Chinese-made reflow soldering ovens such as those being sold on the evil auction place?? The one I've looked at is?item number:262955348183 (Model T962).?
?
My eyes have become the major challenge?to producing the one- or two-off projects, since many of the parts that?are available today?are only made in SMD packages.?? I realize that placing them onto the board still remains a challenge, but at least with a proper oven, I won't have to hold a soldering iron steady enough to build the boards.
?
This model seems to be big enough to?handle all the boards that I want to make, so that is a plus.? Just wondering if this model produces good boards with no unsoldered areas, damaged components, etc.? If it can consistently produce good boards, I'll take a chance on one of them.? Reading the Chinglish instructions is scary enough , but maybe I can figure it out well enough to make it work.
?
Hope someone can give good advice
Dave M
[Non-text portions of this message have been removed]
|
Re: Avantek SPP90 amplifier
Hello all,
Bumping for Ed's response and to give further detail of my own search.
I did a bit more searching and found a pdf from a polish? ftp.
Google "Avantek_Modular_and_Oscillator_Components_2nd_ed.pdf"
I'm getting close to finding what I want. Apparently it is a "Planarpak" (trademarked name by Avantek) that is case number PP-25 as it describes a surface mount 1/4 inch sided square package. It also references how to mount the component. Full details are given on 14-38 from that pdf.
-Lex ?
|
Re: Chinese-made reflow soldering ovens
I have had the T962 (with the third party EST mod from day one) and have found it works well. I strongly recommend fitting that mod kit. I also tend to only use approx 60-70% of the drawer area when doing batches of small boards and none of what I've done to date has been particularly challenging in terms of components with large thermal mass - MMCX connectors are about the biggest I guess - but it works fine and is very repeatable. Pay attention to the very comprehensive EST manual, especially as regards positioning the thermocouples and setting the 'idle' fan speed and you won't go far wrong.
On Sunday, October 8, 2017 9:40 PM, "'Dave M' dgminala@... [hp_agilent_equipment]"
?
Anyone have any experience or have colleagues who have experience using the
Chinese-made reflow soldering ovens such as those being sold on the evil auction
place?? The one I've looked at is?item number:262955348183 (Model
T962).?
?
My eyes have become the major challenge?to producing the one- or
two-off projects, since many of the parts that?are available today?are
only made in SMD packages.?? I realize that placing them onto the
board still remains a challenge, but at least with a proper oven, I won't have
to hold a soldering iron steady enough to build the boards.
?
This model seems to be big enough to?handle all the boards that I want
to make, so that is a plus.? Just wondering if this model produces good
boards with no unsoldered areas, damaged components, etc.? If it can
consistently produce good boards, I'll take a chance on one of them.?
Reading the Chinglish instructions is scary enough , but maybe I can figure it
out well enough to make it work.
?
Hope someone can give good advice
Dave M
|
Hi Adam
Thank you for the information about the memory card required as being ?a
128K memory card
I am not a software guy or very pc literate so the listings below mean nothing
to me,
but I have been told the only way to talk to the 70900 is by using a hp
9000 computer running basic 5.1
I have a VIPER card that I haven’t used but I am told that that will
not do the job
2 hp 9000 computer systems on for me another for someone in the uk that is more
skilled than me
?
We might have to re list this topic under as 70900 software & 70910?
personality software ?
I did put out a line once for the person that originally rote the
program but unfortunately she doesn’t appear to be on this site
?
Paul B
From:
hp_agilent_equipment@...
[mailto:hp_agilent_equipment@...]
Sent: 08 October 2017 23:16
To: hp_agilent_equipment@...
Subject: [hp_agilent_equipment]
Re: Hp 70909A vs 70910A
?
I'm located in the Panhandle of Florida, in Shalimar which is just
north of Destin on the Bay.
One mistake in my previous post is that the total size of the files on
the internal memory is closer to 115K rather than 700K.? These files would
all fit on a 128K memory card if I can locate one.
The issue I'm experiencing is that the firmware within the 70900A seems
to be a modified subset of RMB that does not seem to support standard file
transfer functions such as those that allow copy of files between storage
devices.? So even if I did hook up an HPIB disk or obtain a 128K card for
the 70004A, I don't see how I would instruct the 70900 to copy the files
somewhere other than the internal storage.
This is troubling because I know the internal lithium 3.6V battery is
likely to be near the end of it's life, and from what I read in the manual, the
RX_Mode program (as well as all other DLPs on the internal memory) will be
lost.
As for RMB, I do have several machines that run this natively on the
68K processors (VIPER card, 382 VXI system, etc).? But I don't see how
these would help over the GPIB?? Separately, I am interested in obtaining
the calibration software, which I expect I can run on these machines.
The firmware in this 70900A is Rev 960418 (B.06.03).
I am talking to the instrument via GPIB and ran a CATALOG? which
produced the following listing.?
0876544,0760828
CONFIG,CONFIG,0012938
LARGEST,LARGEST,0760810
,AG???? 00042
A_AT__,G????? 01436
A_CF__,G????? 00296
A_DELETE__,G????? 00242
A_I_GAIN__,G????? 00106
A_I_OFF__,G????? 00108
A_IQ_QD__,G????? 00106
A_IFBW__,G???? ?01512
A_NFMOFF__,G????? 00190
A_Q_GAIN__,G????? 00106
A_Q_OFF__,G????? 00108
A_RECALL__,G????? 00306
A_SAVE__,G????? 00244
A_SP__,G????? 00250
A_VBR__,G????? 00188
A_WFMOFF__,G????? 00190
AT_AUTO__,G????? 00054
AT_MAN__,G????? 00052
A_SG__,G????? 02806
A_VB__,G????? 01500
BEGIN_RX__,G????? 00532
CUST_FLTRS__,G????? 00170
DELETE__,G????? 00158
DEMOD_AM__,G????? 00172
DEMOD_IQ__,G????? 00420
DEMOD_NFM__,G????? 00272
DEMOD_KEYS__,G?? ???00518
DEMOD_PU__,G????? 00178
DEMOD_WFM__,G????? 00272
DISP_MSG__,G????? 00162
DSP_ONOFF__,G????? 00454
GET_MSI__,G????? 00240
H__,G????? 18708
INSTALL_IP__,G????? 00156
MSI_HPIB__,G????? 00230
MSI_INT__,G????? 00228
MSI_MSIB__,G????? 00230
OPTIONS__,G????? 00118
PR_ONOFF__,G????? 00252
PRESEL__,G????? 00234
RD_CPL__,G????? 00854
RECALL__,G????? 00158
REDISP__,G????? 00328
RFIF_GN__,G????? 00962
RUN_TMPCMP__,G????? 00120
RX_BW__,G????? 00616
RX_BW_MORE__,G????? 00550
RX_DEMOD__,G????? 00172
RX_FREQ__,G????? 00520
RX_GAIN__,G????? 01100
RX_HELP__,G????? 03066
RX_MISC__,G????? 00512
RX_MODE_,G????? 00150
RX_RTN__,G????? 00338
RX_RTN_LS__,G????? 00210
RX_RTN_NS__,G????? 00282
RX_RTN_FS__,G????? 00148
SAVE_RCL__,G????? 00468
SET_ONEOS__,G????? 00082
SAVE_STATE__,G????? 00202
SAVE__,G????? 00144
SG_AUTO__,G????? 00054
SG_MAN__,G????? 00052
SHOW_ANNOT__,G????? 00098
SHOW_VERS__,G????? 00118
RX_ERR__,G????? 01562
RX_INIT__,G????? 01808
RX_SV_RCL__,G????? 08346
RXRMT,G????? 09810
SHOWRX__,G????? 09772
TEMP_COMP__,G????? 00274
TOP_KEYS__,G????? 00314
TRAVGONOFF__,G????? 00296
UNITSKEYS__,G????? 00702
UNITSMENU__,G????? 00118
UNITS_CPL__,G????? 00274
UNITS_DBM__,G????? 00120
UNITS_DBMV__,G????? 00122
UNITS_DBUV__,G????? 00122
UNITS_V__,G????? 00120
UNITS_W__,G????? 00120
UPD_SCRN__,G????? 00442
USER_KEY__,G????? 00226
V_AF_FLAG,G????? 00048
V_AT,G????? 00048
V_AUNITS,G????? 00048
V_CF,G????? 00048
V_CFKEYSET,G????? 00048
V_COUPLED,G????? 00048
V_DEMOD,G????? 00048
V_DISP,G????? 00048
V_HELP,G????? 00048
V_I_GAIN,G????? 00048
V_I_OFFSET,G????? 00048
V_IFB,G????? 00048
V_IF_GAIN,G????? 00048
V_IQ_QUAD,G????? 00048
V_KEYSET,G????? 00048
V_MENU,G????? 00048
V_MSI,G????? 00048
V_ROFFSET,G????? 00048
V_NFM_OFF,G????? 00048
V_OPT_FM,G????? 00048
V_OPT_IQ,G????? 00048
V_PR_COL,G????? 00048
V_PR_INPUT,G????? 00048
V_PR_ROW,G????? 00048
V_Q_GAIN,G????? 00048
V_Q_OFFSET,G????? 00048
V_SG,G????? 00048
V_SP,G????? 00048
V_TRAVG,G????? 00048
V_VB,G????? 00048
V_WFM_OFF,G????? 00048
VOID__,G????? 00040
WBIF__,G????? 14844
u_910,G????? 00884
V_911_CAL,G????? 00048
V_911_COL,G????? 00048
V_911_REV,G????? 00048
V_911_ROW,G????? 00048
ONWINDOW,DG???? 00050
TRD,G? ????02084
s_1,G????? 01122
SA_s_0,G????? 01122
CUST_FLTR,G????? 00376
PR_ON_AC,G????? 00520
PR_OFF_AC,G????? 00520
ONEOS,G????? 00064
ONUSER,G????? 00052
?
---In hp_agilent_equipment@...,
wrote :
Hi Adam
Regarding 70000 I have
not spent any time on the subject over the summer due to other commitments so
Firstly could you let the
group have your general location so that local help might be found as I am no
expert?
?
I am told you require a
HP 9000 computer system running basic 5.1 or later a hard drive and a floppy
either 5.25 or 3.5 and I am well on the way to achieving this
Please note the hard and
floppy drives for the HP 9000 computer system are very fragile and I
haven’t found any replacements
?
Regards Paul B
From:
hp_agilent_equipment@...
[mailto: hp_agilent_equipment@...
]
Sent: 08 October 2017 03:41
To: hp_agilent_equipment@...
Subject: Re:
[hp_agilent_equipment] Re: Hp 70909A vs 70910A
?
Paul
Responding to your older post about the 70910A Receiver Personality
software.? I have it loaded on my system and desire to archive it.?
Perhaps someone here can offer me some ideas on how to do this/talk me through
it?? I'm concerned that I don't corrupt or accidentally delete any of the
files while I'm at it.? I have a couple 32KB cards, but the total size of
the files is about 700K or so.? I don't have the 9122 series floppy
drive.? Any thoughts on copying these files over the GPIB to hard disc so
I can post them to KO4BB for posterity (and system safety/longevity)?
Adam
No virus found in this message.
Checked by AVG -
Version: 2016.0.8013 / Virus Database: 4782/15017 - Release Date: 10/08/17
No virus found in this message.
Checked by AVG -
Version: 2016.0.8013 / Virus Database: 4782/15020 - Release Date: 10/09/17
|
Re: Some HP 8341A questions
Hi,
today I have dismantled the YO loop assembly, which contains the YTO as well as severak directional couplers etc., see here, this is my unit:
The YTO is the following one
and the PCB can be seen more clearly in this pic:
Does somebody have experience with these HP YTOs? I will test it today, but probably someone has some experience and can give a few hints.
I see a testpoint with +5, I assume this is +5V supply. There are two further testpoints for +20V and -40V. I wonder whether I need all these voltages, or just a few?
Best
Tobias
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From: hp_agilent_equipment@... [hp_agilent_equipment@...]
Sent: Wednesday, October 04, 2017 23:28
To: hp_agilent_equipment@...
Subject: [hp_agilent_equipment] Re: Some HP 8341A questions
?
Yes, it is possible to test the YTO out of the box. It usually needs +15V, -5V. Heater is not necessary for it to oscillator.
Be very careful about the FM coil. I would just tune the main coil only. You need an SA to watch the output. It's usually at +10dBm.
Regards,
Calvin
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Re: Chinese-made reflow soldering ovens
I made a toaster oven reflow oven, and it works very well. I have made about 70 runs, building 50 SMT boards, sometimes 5 at a time, and all came out soldered correctly. The temperature delta across the oven is about 10 degrees C.
For details, see:
The controller I used has been updated. I did not try the updated one yet.
Mark
On Oct 8, 2017 1:40 PM, "'Dave M' dgminala@... [hp_agilent_equipment]" < hp_agilent_equipment@...> wrote:
?
Anyone have any experience or have colleagues who have experience using the
Chinese-made reflow soldering ovens such as those being sold on the evil auction
place?? The one I've looked at is?item number:262955348183 (Model
T962).?
?
My eyes have become the major challenge?to producing the one- or
two-off projects, since many of the parts that?are available today?are
only made in SMD packages.?? I realize that placing them onto the
board still remains a challenge, but at least with a proper oven, I won't have
to hold a soldering iron steady enough to build the boards.
?
This model seems to be big enough to?handle all the boards that I want
to make, so that is a plus.? Just wondering if this model produces good
boards with no unsoldered areas, damaged components, etc.? If it can
consistently produce good boards, I'll take a chance on one of them.?
Reading the Chinglish instructions is scary enough , but maybe I can figure it
out well enough to make it work.
?
Hope someone can give good advice
Dave M
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Re: HP854A Test Oscillator with worn out attenuator
Ok, I was not familiar with that generator. As it is 10 MHz max and specializes in lower frequency operation and a variety of Z outputs as well as balanced and unbalanced... Not as straight forward as I first suggested. However, yes utilizing what is available may be your best approach. Or, because of the special nature of its output attenuator and configuration, you may be best off trying to get another unit as a parts donor with good switch mechanism in tact.
Alan?
On Sunday, October 8, 2017 10:50 AM, "krizhz@... [hp_agilent_equipment]" wrote:
?
Hi Alan Thank you for that suggestion. That seems much more sensible than my plan. Perhaps the external attenuator could be made from the 0.25% resistors from the old unit. It is an 654A which only goes up to 10 MHz. My jobs are usually on low noise monitoring and DC stability measurements.?Chris
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Thanks Paul,
I'm located in the Panhandle of Florida, in Shalimar which is just north of Destin on the Bay.
One mistake in my previous post is that the total size of the files on the internal memory is closer to 115K rather than 700K.? These files would all fit on a 128K memory card if I can locate one.
The issue I'm experiencing is that the firmware within the 70900A seems to be a modified subset of RMB that does not seem to support standard file transfer functions such as those that allow copy of files between storage devices.? So even if I did hook up an HPIB disk or obtain a 128K card for the 70004A, I don't see how I would instruct the 70900 to copy the files somewhere other than the internal storage.
This is troubling because I know the internal lithium 3.6V battery is likely to be near the end of it's life, and from what I read in the manual, the RX_Mode program (as well as all other DLPs on the internal memory) will be lost.
As for RMB, I do have several machines that run this natively on the 68K processors (VIPER card, 382 VXI system, etc).? But I don't see how these would help over the GPIB?? Separately, I am interested in obtaining the calibration software, which I expect I can run on these machines.
The firmware in this 70900A is Rev 960418 (B.06.03).
I am talking to the instrument via GPIB and ran a CATALOG? which produced the following listing.?
0876544,0760828
CONFIG,CONFIG,0012938
LARGEST,LARGEST,0760810
,AG???? 00042
A_AT__,G????? 01436
A_CF__,G????? 00296
A_DELETE__,G????? 00242
A_I_GAIN__,G????? 00106
A_I_OFF__,G????? 00108
A_IQ_QD__,G????? 00106
A_IFBW__,G???? ?01512
A_NFMOFF__,G????? 00190
A_Q_GAIN__,G????? 00106
A_Q_OFF__,G????? 00108
A_RECALL__,G????? 00306
A_SAVE__,G????? 00244
A_SP__,G????? 00250
A_VBR__,G????? 00188
A_WFMOFF__,G????? 00190
AT_AUTO__,G????? 00054
AT_MAN__,G????? 00052
A_SG__,G????? 02806
A_VB__,G????? 01500
BEGIN_RX__,G????? 00532
CUST_FLTRS__,G????? 00170
DELETE__,G????? 00158
DEMOD_AM__,G????? 00172
DEMOD_IQ__,G????? 00420
DEMOD_NFM__,G????? 00272
DEMOD_KEYS__,G?? ???00518
DEMOD_PU__,G????? 00178
DEMOD_WFM__,G????? 00272
DISP_MSG__,G????? 00162
DSP_ONOFF__,G????? 00454
GET_MSI__,G????? 00240
H__,G????? 18708
INSTALL_IP__,G????? 00156
MSI_HPIB__,G????? 00230
MSI_INT__,G????? 00228
MSI_MSIB__,G????? 00230
OPTIONS__,G????? 00118
PR_ONOFF__,G????? 00252
PRESEL__,G????? 00234
RD_CPL__,G????? 00854
RECALL__,G????? 00158
REDISP__,G????? 00328
RFIF_GN__,G????? 00962
RUN_TMPCMP__,G????? 00120
RX_BW__,G????? 00616
RX_BW_MORE__,G????? 00550
RX_DEMOD__,G????? 00172
RX_FREQ__,G????? 00520
RX_GAIN__,G????? 01100
RX_HELP__,G????? 03066
RX_MISC__,G????? 00512
RX_MODE_,G????? 00150
RX_RTN__,G????? 00338
RX_RTN_LS__,G????? 00210
RX_RTN_NS__,G????? 00282
RX_RTN_FS__,G????? 00148
SAVE_RCL__,G????? 00468
SET_ONEOS__,G????? 00082
SAVE_STATE__,G????? 00202
SAVE__,G????? 00144
SG_AUTO__,G????? 00054
SG_MAN__,G????? 00052
SHOW_ANNOT__,G????? 00098
SHOW_VERS__,G????? 00118
RX_ERR__,G????? 01562
RX_INIT__,G????? 01808
RX_SV_RCL__,G????? 08346
RXRMT,G????? 09810
SHOWRX__,G????? 09772
TEMP_COMP__,G????? 00274
TOP_KEYS__,G????? 00314
TRAVGONOFF__,G????? 00296
UNITSKEYS__,G????? 00702
UNITSMENU__,G????? 00118
UNITS_CPL__,G????? 00274
UNITS_DBM__,G????? 00120
UNITS_DBMV__,G????? 00122
UNITS_DBUV__,G????? 00122
UNITS_V__,G????? 00120
UNITS_W__,G????? 00120
UPD_SCRN__,G????? 00442
USER_KEY__,G????? 00226
V_AF_FLAG,G????? 00048
V_AT,G????? 00048
V_AUNITS,G????? 00048
V_CF,G????? 00048
V_CFKEYSET,G????? 00048
V_COUPLED,G????? 00048
V_DEMOD,G????? 00048
V_DISP,G????? 00048
V_HELP,G????? 00048
V_I_GAIN,G????? 00048
V_I_OFFSET,G????? 00048
V_IFB,G????? 00048
V_IF_GAIN,G????? 00048
V_IQ_QUAD,G????? 00048
V_KEYSET,G????? 00048
V_MENU,G????? 00048
V_MSI,G????? 00048
V_ROFFSET,G????? 00048
V_NFM_OFF,G????? 00048
V_OPT_FM,G????? 00048
V_OPT_IQ,G????? 00048
V_PR_COL,G????? 00048
V_PR_INPUT,G????? 00048
V_PR_ROW,G????? 00048
V_Q_GAIN,G????? 00048
V_Q_OFFSET,G????? 00048
V_SG,G????? 00048
V_SP,G????? 00048
V_TRAVG,G????? 00048
V_VB,G????? 00048
V_WFM_OFF,G????? 00048
VOID__,G????? 00040
WBIF__,G????? 14844
u_910,G????? 00884
V_911_CAL,G????? 00048
V_911_COL,G????? 00048
V_911_REV,G????? 00048
V_911_ROW,G????? 00048
ONWINDOW,DG???? 00050
TRD,G? ????02084
s_1,G????? 01122
SA_s_0,G????? 01122
CUST_FLTR,G????? 00376
PR_ON_AC,G????? 00520
PR_OFF_AC,G????? 00520
ONEOS,G????? 00064
ONUSER,G????? 00052
Thanks
Adam
---In hp_agilent_equipment@..., <paul@...> wrote : Hi Adam Regarding 70000 I have not spent any time
on the subject over the summer due to other commitments so Firstly could you let the group have your
general location so that local help might be found as I am no expert? ? I am told you require a HP 9000 computer
system running basic 5.1 or later a hard drive and a floppy either 5.25 or 3.5 and
I am well on the way to achieving this Please note the hard and floppy drives for
the HP 9000 computer system are very fragile and I haven’t found any replacements
? Regards Paul B
From:
hp_agilent_equipment@...
[mailto: hp_agilent_equipment@... ]
Sent: 08 October 2017 03:41
To: hp_agilent_equipment@...
Subject: Re:
[hp_agilent_equipment] Re: Hp 70909A vs 70910A ? Paul
Responding to your older post about the 70910A Receiver Personality
software.? I have it loaded on my system and desire to archive it.?
Perhaps someone here can offer me some ideas on how to do this/talk me through
it?? I'm concerned that I don't corrupt or accidentally delete any of the
files while I'm at it.? I have a couple 32KB cards, but the total size of
the files is about 700K or so.? I don't have the 9122 series floppy
drive.? Any thoughts on copying these files over the GPIB to hard disc so
I can post them to KO4BB for posterity (and system safety/longevity)?
Adam No virus found in this message.
Checked by AVG -
Version: 2016.0.8013 / Virus Database: 4782/15017 - Release Date: 10/08/17
|
Michael A. Terrell
Chris Hayes
Paul Bicknell