[Amps] HP vector Voltmeter info

[Karl-Arne Markström]

Hello,

If my memory serves me right, the isolator tip is used to compensate for the effects
of the signal source internal impedances on sampling voltmeter readings.

Without it, low source impedances would cause increased readings compared to those from a higher
resistance, due to the higher charge that is transferred from a low-impedance source to the sample-and-hold capacitor
during the sample instant.

A similar accessory, the 11072A, came with the HP3406 sampling voltmeter.

Hope this helps and 73/

Karl-Arne
SM0AOM

----- Original Message ----- 
From: <RFlabnotes at aol.com>
To: <amps at contesting.com>
Sent: Monday, January 12, 2004 12:17 AM
Subject: [Amps] HP vector Voltmeter info


> I am urgently looking for data on an accessory that came with the HP 8405A 
> Vector Voltmeter. It is the 10216A probe isolator and I am offering a small 
> reward for info on what it really is (no help in the HP manual)..
> 
> Eric von Valtier K8LV
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