[time-nuts] Why a 10MHz sinewave output?

Bob Camp lists at rtty.us
Mon Feb 6 17:37:13 UTC 2012


In addition to the stuff already mentioned, there's one more reason: RFI

If you want to run around with a 10 MHz square wave with 1 ns rise time
edges, it's going to have energy all over the place. To keep the rise time
you will get well into the GHz. That may (as in probably will) interfere
with a lot of RF measurements. 


-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of bob grant
Sent: Sunday, February 05, 2012 10:50 PM
To: time-nuts at febo.com
Subject: [time-nuts] Why a 10MHz sinewave output?

Why is 10MHz output of many sources or distribution amps in the form of
a sinewave?
Is it something to do with signal reflections or ease of isolation?

Since zero crossing detectors are susceptible to noise wouldn't a fast
TTL square 
wave be more appropriate for signal distribution within a equipment

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