This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.
A question relative to the Unisys DIFAX charts and the PNG format: > Is this the product format you get over the Ku-band?The DIFAX maps we get from Unisys are PCX format. The PNG format charts Dan Vietor is/was experimenting with may be the next phase of Unisys DIFAX. He gave me some (as digital files) to look at. They are sweet.
I get my Unisys DIFAX charts by ftp'ing to Unisys once an hour (via cron), 24 times a day. Not a very elegant system. SIO gets no weather data via satellite anymore. We were a Zephyr/Alden C-band customer at one time. We went from there directly to the IDD.
Where we'll go after we stop doing business with Unisys, I don't know. Larry ---===---=-=-=-=-=-=-=-=-=-=-=====[\/]=====-=-=-=-=-=-=-=-=-=-=---===--- -----===(* Climate's what we expect, but weather's what we get. *)===----- Larry Riddle | Climate Research Div | Scripps Institution of Oceanography University of California, San Diego | La Jolla, California 92093-0224 Phone: (858) 534-1869 | Fax: (858) 534-8561 | EMail: address@hidden http://meteora.ucsd.edu/weather.html