1836RE: [olivia] The 30m Band Utilization Chart -- 2 June 2011
- Jun 3, 2011I was taught that, when I use the word "assume", I should expect that the
situation would be ripe for making an ass out of you and me. Hi Hi.
73 Jerry KM3K
From: email@example.com [mailto:firstname.lastname@example.org] On
Behalf Of Waldis Jirgens
Sent: Friday, June 03, 2011 8:26 AM
Cc: Ken Meinken
Subject: Re: [olivia] The 30m Band Utilization Chart -- 2 June 2011
What's your difficulty with "Center Frequency"? It's clear for AM, FM
and CW. Why is it NOT clear for Olivia or PSK31 or PSK125?
You basically use an spectrum of audio frequencies of a certain
bandwidth to modulate a SSB transceiver. Assume the transceiver is tuned
to frequency ftx. Assume the middle frequency of the spectrum is fma.
Then for USB your center frequency is ftx+fma and for LSB ftx-fma.
This is the stuff people learn to pass their licence exam for more than
50 years now...
73: Waldis Jirgens - VK1WJ - http://ilgonis.orgfree.com
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