¿ªÔÆÌåÓý

  1. HP-Agilent-Keysight-Equipment
  2. Messages
Messages Topics Expanded
Date
Re: HP 8116A woes with E42 error
------ When offset is set to one of the settings that produce -13.2V at the output of U502, what voltages do you measure at 1) anode of CR501 2) emitter of Q501 3) cathode of CR502 4) emitte
By Ozan · #126734 ·
Re: HP 8116A woes with E42 error
So I did some more reading and I was wondering what comes after the DAC output control from A2. As mentioned before, I measured the output of the DAC and listed the voltages in my first post. They
By Swiss · #126733 ·
Re: 53181A 3 GHz prescaler from China
Has anyone measured the additional phase noise from this clock multiplier module, or others? Thanks, Ron -
By Ron · #126732 ·
Re: Limits of the Port Extension on the Cal screen for calibrating at end of cable
Not sure if this has been mentioned, and it is entirely academic, but the attenuation of the cable could degrade accuracy if the cables have significant enough loss. However with your cable (RG213),
By Roger Henderson · #126731 ·
Re: Limits of the Port Extension on the Cal screen for calibrating at end of cable
Thanks to all who replied. I used to design fiber optic systems, among my other system design tasks, and am aware of the fact the receiver cannot sometimes track the source because of long delays in
By Karin Johnson · #126730 ·
Re: HP8563E-Damaged red coax from A4 PCB-Is it easy to replace?
According to the CLIP the A4 assembly is the Log Amp and Cal assembly. J3,J4,J5,J7 and J8 are 50 Ohm SMB connectors according to the parts list. I have not identified the EXACT designation of the RED
By David · #126729 ·
Re: HP8563E-Damaged red coax from A4 PCB-Is it easy to replace?
A few comments on SMB connectors : SMB is a push on RF connector that is a cousin of the SMC connector both are identical except of the SMC being screw on. SMB was designed as a miniature RF connector
By Lothar baier <Lothar@...> · #126728 ·
Re: HP8563E-Damaged red coax from A4 PCB-Is it easy to replace?
What is the signal involved? HP often used SMB for DC bias or things like RF detector outputs when they just wanted a well screened cable. If that is the case here then a slightly squidged cable is
By Adrian Nicol · #126727 ·
Re: HP 8116A woes with E42 error
I did check the supplies. Sorry I forgot to mention that. If I remember correctly the +15 V supply was off, and it wasn't off by much. It was in the millivolts range if I recall. I was able to get
By Swiss · #126726 ·
Re: HP8563E-Damaged red coax from A4 PCB-Is it easy to replace?
I'll also give the warming up trick a try as well and I'll check the continuity as well. Thanks. David.
By David · #126725 ·
Re: HP8563E-Damaged red coax from A4 PCB-Is it easy to replace?
George, I will confirm if there is a connector on the other end and the exact length this coming weekend. Thank you. David.
By David · #126724 ·
Re: HP8563E-Damaged red coax from A4 PCB-Is it easy to replace?
Hi David Having looked at the photograph I would first try slightly warming the cable and then using my thumb and a finger try to roll the damage out of the coax. SMB connectors are not normally used
By george edmonds · #126723 ·
Re: HP8563E-Damaged red coax from A4 PCB-Is it easy to replace?
Hi David This is an SMB connector.? The cable is almost certainly 50 Ohms impedance as is the SMB connector. The red is just for identification, does it have connectors on both ends? What is the
By george edmonds · #126722 ·
Re: HP8563E-Damaged red coax from A4 PCB-Is it easy to replace?
Thank you for your replies so far. Please find attached a photo of the connectors and the damaged coax cable (Red). If I was to buy cable it is important to buy the correct type so that it's the
By David · #126721 ·
Re: HP8563E-Damaged red coax from A4 PCB-Is it easy to replace?
Hi David I suspect that you are asking for a cable using SMB connector/s. Sugest that you photograph it and post the photograph. I have some SMB made up cables G Edmonds
By george edmonds · #126720 ·
Re: HP8563E-Damaged red coax from A4 PCB-Is it easy to replace?
There is no such thing as a push on SMA , the connector you are referring to is more than likely a SMB connector which are common in HP equipment to connect IF and low frequency signal lines, crimp
By Lothar baier <Lothar@...> · #126719 ·
Re: HP 8116A woes with E42 error
Did you check the supplies? You mentioned checking a bunch of stuff, but not that. I've fixed a couple of these (I think), and the problem was simply a bad negative supply, if I recall correctly. In
By Tom Lee · #126718 ·
HP8563E-Damaged red coax from A4 PCB-Is it easy to replace?
I am reassembling my HP8563E SA and I have found a red coaxial cable (approx 2.7mm diameter) that connects to the A4 PCB that has compression damage to the insulation. It has a right angle push on
By David · #126717 ·
HP 8116A woes with E42 error
Hello everyone. Long time lurker / never poster. Waned to see if anyone may have some ideas on an issue that I am having with an 8116A? function generator. The output of the unit slowly started to
By Swiss · #126716 ·
Re: LackRack
Yes... yes it is! I'm not saying I have enough style to avoid this; but, I don't smoke as much of that stuff as some Google engineers might (whatever a Google engineer might be.) Fortunately,
By Roy Thistle · #126715 ·
25001 - 25020 of 151477