AMRAD Meeting tonight
Karl W4KRL
W4KRL at arrl.net
Thu May 14 09:08:26 CDT 2015
We can take reservations for the June 11 anniversary dinner by check, cash
or credit card at the meeting tonight..
You can make reservations online or by check anytime. See details at
www.amrad.org/anniversary
*73 Karl W4KRL*
- *May 14, 2015, 7:30pm – Pete McNeil, KF4HCW, “Digital Modulation
Description Language”*
- While considering remote operations on HF there are two problems:
1. Most digital modes done these days require a lot of bandwidth because
the signals are being transmitted and received as digitized audio (or
worse), and 2. Network delays introduce timing problems inherent
in CW work
that are not normally apparent in half-duplex digital and audio work.
- Pete will share his thoughts on developing a method to send digital
timing information rather than analog audio to the transmitter and use
direct synthesis to perform high fidelity modulation. It may be
possible to
use the descriptive language to code every currently known modulation
scheme and then later use the same mechanism for schemes that
have not yet
been invented.
- Tysons Pimmit Library
<http://www.fairfaxcounty.gov/library/branches/ty/>, 7584 Leesburg
Pike, Falls Church, VA 22043
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