The bolometers ( cared units) maintains his cal factor for several years its very stable there are a lot of papers about it. Send to calibration would be more expensive than the sensor price…?
Regards, Patricio.?
Ing. Patricio A. Greco
Taller Aeronáutico de Reparación 1B-349
Organización de Mantenimiento?Aeronáutico de la Defensa OMAD-001
Laboratorio de Calibración ISO 17025?AREA: RF/MW?
Gral. Martín Rodríguez 2159
San Miguel (1663)
Buenos Aires
T: +5411-4455-2557
F: +5411-4032-0072
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On 24 Apr 2025, at 16:35, Paul Bicknell via <
admin@...> wrote:
OK I have ?filed in the Tegam? on line request only for them to come back asking about end user and how many I want??
My response was I am the end user and only want the price for 1 unit?
?
I have recently bought for about 450 euros a NEW old stock HP478A? option H72?? 1 to 1000 MHz
but unfortunately it does not have a calibration chart on the side any suggestions welcome
It is marked as?
Air force metrology and calibration program ?
Base Measurement Standard
Also I assume the difference between the H72 and the H75? is the H75 is selected for its lower SWR at 50 MHz?
?
?
On Wed, Apr 23, 2025 at 01:33 PM, Razvan Popescu wrote:
Cables and other accessories are bought separately.
AFAICT...? Keysight shows 16K USD ...for the meter, cable, sensor, and support package... so all inclusive... at least in this part of North America.
Not sure about the Tegam ... as you have to 'phone home' for the price... because everyone is special?
Patricio A. Greco