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Re: HP 8970B with 346B Noise source - Error 13
Hello Paul, The manual says to use the 346B/C for the calibration which are 15dB ENR sources. It also says you can use the 346A but you need to add +10dB of gain. So a minimum of +11dB sounds normal I
By Razvan Popescu · #145084 ·
Re: HP 8970B with 346B Noise source - Error 13
Razvan I appreciate your reply. Well thats a surprise. 11dbm as measured on a power meter like a HP436, or a spectrum analyzer? Thats 100 mw. I never would have thought to go that high for a input. I
By paulswed · #145083 ·
Re: HP3048 data file format?
Thank you very much Alan! With this I will probably succeed. My main goof was, that I was looking for 4 byte floats... Marko Cebokli
By Marko Cebokli · #145082 ·
Re: HP 8970B with 346B Noise source - Error 13
Hello Paul, I also use my units for Ham Radio and at least I have the 8970A working. I didn't have time to look at the voltages in the B model. I have the original HP noise source but as I said I am
By Razvan Popescu · #145081 ·
Re: HP3048 data file format?
The source code in HP Basic to the 3048 program is available and the load_results is as follows. It basically uses the ENTER command to do HPBASIC IO. The HP BASIC manual reminds us that in binary
By Alan Bain · #145080 ·
Re: 3562A Help/advice
The display module is the HP 1345A. There are two versions, one which includes display memory that it uses to continuously refresh the display, and the other version does not have the display memory,
By Philip Freidin · #145079 ·
Re: HP 8970B with 346B Noise source - Error 13
Razvan I don't have your answer but face a similar issue on my 8970a. Though I do not have any official HP noise source. I do have noise sources and amplifiers so have tried various levels all with
By paulswed · #145078 ·
Re: Artek Manuals - vacation announcement
Can you please confirm those dates? July 6th is not a Thursday. Thanks, Stan
By Stan · #145077 ·
Re: VISA problems with ancient test equipment?
Hi Yves, sent you this message from two different email adresses but both could not be delivered: ============================================ Hi, thanks again for your efforts and your detailed
By dk1vi · #145076 ·
Re: Several problems with Agilent 54810
Check the supply circuit of back light itself. 從我的iPhone傳送
By Yiu On Tony C · #145075 ·
Re: Several problems with Agilent 54810
Hello, *Does anyone have the electrical diagram of the Mitsubishi AA084VB02 LCD screen? * I have found the service manual, but not the schematic. The screen is black, there must be an internal problem
By Gerard · #145074 ·
Re: k&s 1470 Wire bonding reconstruction
Hello Lehane, I was trying last year to send Iban EB3FRN an email but I cannot really find his email address. I am watching his blog site and also his youtube channel but I don't see how to get in
By Razvan Popescu · #145073 ·
Re: 8566B - Low signal on 2-22 GHz band
===== Red LED says heater is working hard to bring up temperature of YTX. It should turn on bright at power up, and turn off when YTX temperature is within target. I just checked on my 8566B, red LED
By Ozan · #145072 ·
Re: 8566B - Low signal on 2-22 GHz band
I have been reading with interest. At the LO output, you are measuring the YIG local oscillator, correct? However, this tells you nothing about the YIG tuned mixer, which, horror of horrors, I hope is
By Jeff Kruth · #145071 ·
Re: 8566B - Low signal on 2-22 GHz band
Hi All, Thanks again for the suggestions. I'm calling it a night, but I wanted to update this thread before turning in. I have already run the test on the LO OUTPUT, and I do get a mixed 321.4 MHz s +
By W4PJB · #145070 ·
Artek Manuals - vacation announcement
A message posting requested by Artek Manuals: Artek Manuals will on vacation from June 27th through July 5th, returning to answer questions, process orders on Thursday July 6th. regards, Ron -
By Ron · #145069 ·
Re: 8566B - Low signal on 2-22 GHz band
Follow this sequence: Right next to the 1st LO OUTPUT connector (front panel) is the IF jumper. Remove the jumper and check it for continuity. The one in the picture on EEVBLOG does not look like the
By pianovt · #145068 ·
Re: 8566B - Low signal on 2-22 GHz band
Hi Pete,you can check:if there is IF out (321.4MHz) from 1.5GHz LPF A6A16 and from ACLU A6A5 to LPF (jumper A6W22).if there is YTX A6A8 drive from current driver A6A7if there is resistance on YTX
By sv1aku · #145067 ·
Re: 8566B - Low signal on 2-22 GHz band
Thanks everyone, I tried running the Preselector Peak Routine, no success. Also, just for kicks, I swapped out the YIG with a supposed "tested good" unit. Also, no change, although I didn't expect
By W4PJB · #145066 ·
Re: k&s 1470 Wire bonding reconstruction
Hello Massimo, Thanks for the tip with the patents! As for the heater I already have some left over power resistors so I can build something similar to yours. I will most probably come to you with
By Razvan Popescu · #145065 ·