[time-nuts] OT - Old Hatfield 2105 Step attenuator specs
Alberto di Bene
dibene at usa.net
Wed Jan 8 20:50:14 UTC 2014
On 1/6/2014 2:13 PM, Giuseppe Marullo wrote:
> /I would like to know the specs for this attenuator, especially the
> maximum frequency, if any good folk has a ballpark idea...
> I was not able to locate any info about it./
I too have one, bought cheaply a couple of years ago on eBay. I tested its accuracy
with a calibrated RF generator and a Selective Voltmeter, both from W&G,
at a frequency of approximately 10 MHz.
Up to roughly 70 - 75 dB attenuation, it is reasonably accurate. Beyond that
value, the internal leakages dominates, and you can forget to have an attenuation
of 100 dB, when you set it to the maximum...
73 Alberto I2PHD
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