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Re: A homemade diode power sensor for HP meters
OK Dave Re the 8484 I actually have 2 of the black 2 grey and one D version a lot better than my original 430 power meter and Sensor with an N connecter on it So just a thought how dues the 8484A
By Paul Bicknell · #126489 ·
Re: A homemade diode power sensor for HP meters
The 8484A was the first diode sensor that HP produced , it was a horrible piece of equipment prone to drift especially if you got one with the black case . Eventually HP redesigned the sensor to solve
By Lothar baier <Lothar@...> · #126488 ·
Re: A homemade diode power sensor for HP meters
Thank you Dave for those kind words of love Paul
By Paul Bicknell · #126487 ·
Re: A homemade diode power sensor for HP meters
Of that there can be NO doubt. But we all love you anyway. ;) -Dave -- Dave McGuire, AK4HZ New Kensington, PA
By Dave McGuire · #126486 ·
Re: A homemade diode power sensor for HP meters
Hi Bruce Thank you for confirming the 8484A is a Diode front end and On re reading your previews mail again it is as clear as MUD Do not worry about Typos as I must be the worst speller on this
By Paul Bicknell · #126485 ·
Re: A homemade diode power sensor for HP meters
It is a type - I meant Diode The 8484 is a DIODE sensor - many other HP diode ensors have a D in the model number as explained B4 Cheers! Beruce Quoting Paul Bicknell <admin@...>:
By Bruce · #126484 ·
Re: A homemade diode power sensor for HP meters
The connecters are available, Binder make 3 types and they did cost ?10 , ? 13 and ?16 each Regarding Diode sensors do not forget the 430 meter was made for Diode sensors also I believe the
By Paul Bicknell · #126483 ·
Re: A homemade diode power sensor for HP meters
OK Bruce please explain ! You say (The 8484 is a dione power sensor. Many other HP diode sensors end with t "D" instead of an "A" in the model number.) I do not understand ?? also is dione in
By Paul Bicknell · #126482 ·
Re: A homemade diode power sensor for HP meters
Hi Paul sounds like you have re engendered the 435 and you say you have achieved a 65 dB dynamic range that is excellent and good for most Amateurs to 6 Ghz but a lot want 10 Ghz suggest you
By Paul Bicknell · #126481 ·
Re: A homemade diode power sensor for HP meters
Talking about power sensor, I got lucky enough to get a (working) 436b and a WORKING \o/ sensor. But unfortunately, got it without the cable. Is there a cheaper source for the cable than ebay? 73 de
By Alexandre Souza · #126480 ·
Re: A homemade diode power sensor for HP meters
The 8484 is a dione power sensor. Many other HP diode sensors end with t "D" instead of an "A" in the model number. E.g. 8485D as opposed to 8485A Cheers! Bruce Quoting Paul Bicknell
By Bruce · #126479 ·
Re: Converting a 3336A signal gen to 3336C
Updates & errors in my previous post : * Display keyboard panel is A5 not A4... * High accuracy attenuator is still there...its center behind the "modify" potentiometer control...whats is removed is
By claude · #126478 ·
Re: A homemade diode power sensor for HP meters
From memory the 8484 power sensor is a diode front end But a working 8481 or 8484 go for about ?120 to ?160 in the UK equivalent to a day’s wages And it would take best part of a day to
By Paul Bicknell · #126477 ·
Re: hp 16702 LA connectivity questio: GPIB, RS-232 > USB, Ethernet
There is actually a TI 9914 GPIB controller populated on the 16700-series logic analyzer CPU board, along with a 75ALS160 and 74ALS164, and a 24-pin header populated where a back panel GPIB connector
By Glen Slick · #126476 ·
Re: hp 16702 LA connectivity questio: GPIB, RS-232 > USB, Ethernet
I don't see that there was ever a GPIB option for the 167xx series. There used to be GPIB<-->RS232 boxes, such as the IOTech Micro488EX, that could be operate as a controller if you wanted the 167xx
By Mark Litwack · #126475 ·
Re: A homemade diode power sensor for HP meters
The biggest issue you run into with diodes is that they have a limited dynamic range if it comes to linearity , agilent tried to compensate for this in the E9300 series sensors by using multiple
By Lothar baier <Lothar@...> · #126474 ·
Re: A homemade diode power sensor for HP meters
The diode approach would be the way to go. Like many of you I also like the large scale HP power meters. You can pick the bodies up for nothing. Though suddenly there seems to be a magical market for
By paulswed · #126473 ·
Re: A homemade diode power sensor for HP meters
Of course. I have a Weinschel NBS power sensor calibration system in my lab. B-) -Dave
By Dave McGuire · #126472 ·
Re: A homemade diode power sensor for HP meters
It’s a different story obviously if you design a complete new sensor but then you still have the problem that you need access to a calibrated sensor to establish your calibration factors
By Lothar baier <Lothar@...> · #126471 ·
Re: A homemade diode power sensor for HP meters
I'm not talking about putting a diode where the thermocouple used to be, I'm talking generally about diode-based sensors on these meters. I'm quite aware of the internals, having studied them
By Dave McGuire · #126470 ·