Re: CISPR Resolution Bandwidths and low cost calibrated Antenna
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I have occasionally seen calibrated dipoles on ebay.? They are still expensive for my retirement income, but they do show up and far less than new.
Just checked ebay.? All there is at present is a biconical antenna, 25 - 300 MHz, for $ 990.
Don't forget the old substitution method.? Requires only a well decoupled dipole whose antenna factor is well known and you can construct for any given frequency, a few short runs of coax, and a good signal generator.
For the low frequencies, we used a loop from R&S.? I had one, but gone in the forest fire here in N. Colorado in 2012.? I still have two sets of calibrated dipoles from a decommissioned test lab.?
Dave - W?LEV
Hi
Erik - an excellent low cost design - very well done!
I am interested in measuring to CISPR11 for EMC pre-compliance testing on Industrial RF equiment.
Would it be at all possible to implement the CISPR 16 Resolution Bandwidths please?
These are:
9 kHz to 150 kHz (Band A), RBW = 200 Hz
150 kHz to 30 MHz (Band B), RBW = 9 kHz
30 MHz to 300 MHz (Band C), RBW = 120kHz
300 MHz to 1,000 MHz (Band D), RBW =120kHz
Also, does anyone know of a low cost calibrated Antenna which can measure from 20MHz to 1000MHz?
I have a very large and expensive Sunol Log Periodic Antenna which covers up to 5gHz and is calibrated, but I was rather hoping that eventually a more portable calibrated antenna might become available.
Thanks
Tony
-- Dave - W?LEV
Just Let Darwin Work
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