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From: "Frank Dinger"
Subject: Re: Using a 'scope as a field-strength-meter
X-Newsreader: Microsoft Outlook Express 6.00.2600.0000
Date: Sun, 12 Jan 2003 01:36:15 -0000
NNTP-Posting-Date: Sun, 12 Jan 2003 01:41:46 GMT
Organization: ntlworld News Service
> I was just starting to piece together a breadboard circuit for an RF
> field strength meter when I happened to notice that keying the
> low-power transmitter under test (half a Watt out) resulted in a
> substantial waveform being displayed on my 'scope about 6 feet away
> (just by induction through the probe lead, I imagine). The question
> then arose as to whether I needed to build a FSM at all, since the
> 'scope is obviously sensitive enough on its own to pick up highly
> local transmissions.
> So I'd like to invite views on whether this is feasible or not. I
> can't see a problem with it, but maybe someone else can. Any ideas,
A FSM usually needs to be a portable device to test antennas in the (near)
field and unless you have a small portable LCD scope a more traditional
instrument with a moving coil meter or LED bar seems more appropriate.
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