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Re: HP 436A
Just as a data point, I checked my 436A with 8482A sensor (http://www.tucker.com/images/images_spec/00000289.pdf) and found that it tracked my 8640B accurately between -30 and +20 dBm (to within a
By John Miles <jmiles@...> · #491 ·
Bezel: round available, square wanted
Hi There, I have a spare HP cro bezel, the older aluminium round type with 4 screw holes. Good condition, a bit dusty, minor tarnish, inside paint good. I'm looking for a plastic square type, as
By Ray Robinson <robinson@...> · #490 ·
Re: HP 436A
Dan – Thanks again. Before I say anything else I will try the alignment. It just seems odd that all three of my 436As behave the same way, with all 7 of my sensors, regardless if they are in the
By Mike Feher · #489 ·
Re: HP 436A
Mike, I think that your dynamic range is dependent upon the sensor used. So, if your sensor a 8481A it goes from +20 to -30 then there you go. Most sensors have the 50db range(8482H 45db range).
By Dan Tulloss <dtulloss@...> · #488 ·
Re: HP 436A
Dan - Thanks for the suggestion. Do you remember if you did indeed get a full 50 dB dynamic range on your 436As? - Regards - Mike Mike B. Feher, N4FS 89 Arnold Blvd. Howell, NJ,
By Mike Feher · #487 ·
Re: HP 436A
Mike, Before you go and try and repair the power meter try and do a full re-alignment on it. I have found that if you are not getting good readings at the low end that re-aligning the 436A will
By Dan Tulloss <dtulloss@...> · #486 ·
Re: HP 436A
Brooke - Thanks for the info. The only problem is all three of my 436s behave the same way. What are the chances of all 3 having the same problem? Is there any one on here who does get a full 50 dB
By Mike Feher · #485 ·
HP 436A
Hi Mike: I asked a friend who's probably one of the world's experts on power measurements and he thinks you 436 is defective. His reply is: "Probably the A2 card (AC gain board, contains true range
By Brooke Clarke · #484 ·
Re: Digest Number 173
Brooke - For example, I can take any of my sensors, which are marked to have a 50 dB range and connect them to a signal generator. I start out with the maximum level indicated on the sensor and all
By Mike Feher · #483 ·
Re: Digest Number 173
Hi Mike: How are you making the measurement? 73, Brooke Clarke, N6GCE -- w/Java http://www.PRC68.com w/o Java http://www.pacificsites.com/~brooke/PRC68COM.shtml http://www.precisionclock.com
By Brooke Clarke · #482 ·
HP 436A
I have a question regarding the subject power meter. According to all of the information I have, including catalogs and the manual, the instrument is supposed to be able to have a 50 dB dynamic range.
By Mike Feher · #481 ·
Re: HP 1980B Scope
It Is A Flood Gun (On Mine Anyhow), Perhaps A Missing Voltage Or A Socket Jarred Loose. A Manual May Still Be Available For Free Download At The Teknet Equipment Site. Also There Is A Lithium Cell At
By Greyhawk <greyhawk@...> · #480 ·
HP 1980B Scope
Bought a 1980B scope on E-bay. Everything works except for the graticule illumination. Is this integral to the CRT like the flood gun approach used on some of HP's earlier scopes? Or is there a
By jamesemeister <jamesemeister@...> · #479 ·
How to clean the dial on 331A
Does anyone know what is safe to clean the old style frequency dials on 331A/3330A type units? I dont want to just try somthing and find it removes the lettering. Thanks BL
By computeruser04 <computeruser@...> · #478 ·
Re: Manual for HP1740A
Hi Gearoid, I don't have a scanned one, I'll make you a photocopy of mine. Regards Ray
By Ray Robinson <robinson@...> · #477 ·
Re: Digest Number 167
Thank you Ian Wells Kerinvale Comaudio mail service 1017, Biloela,4715. www.kerinvalecomaudio.com.au 1-email- ianwells@... 2-email- kvcomaudio@... 3-email- kvcomaud@...
By ian wells <ianwells@...> · #476 ·
Re: Digest Number 167
Hi, You could try checking the DIP switch. They can go bad. You may want to replace it. Regards, John
By eboytoronto · #475 ·
Putting best foot forward.... HP1715A
Howdy All- RE: HP1715A (and family) scope -- rear panel foot/bumper. Anyone have a spare rear panel foot (more like a leg) that bolts to the rear apron on the HP 1715A scope? These are black
By vollumscope <perls@...> · #474 ·
RF Voltmeter HP 3406A
Gentlemen, I have a HP 3406A Broadband Sampling Voltmeter I am repairing. According to the test procedure in the manual , the probe assembly is faulty and should be replaced as it is not field
By David Hopkins · #473 ·
Re: Digest Number 167
Thanks George, I too have two of them ! the problem I have is that even with the dip switch on the back set the same, one of them wont allow me to set the day/month, it increments ok as the clock
By VK4ACB <vk4acb@...> · #472 ·