Celestaire sells a few types of software. Their address is Celestaire, 416 S Pershing, Wichita, KS 67218, (316) 686-9785.
They also sell aviation and marine navigation eqpt.; their catalog is the most complete I've seen in this area. High prices, though.
Davis Instruments, 3465 Diablo Ave, Hayward, CA 94545, USA sells PC Astro Navigator. They also sell sextants and a few other useful devices.
I (jfh@cs.brown.edu) have a C subroutine package that implements (let the user beware) the programs that used to be used in the HP41 Nav Pac. These include a nautical almanac program and a basic sight-reduction software. This is the only free software I know of. I also have a variation of the ``stars'' program that uses the Yale Star Catalog to print a start chart, customized to any day of the year, from any geographical position, at any time. It comes with no documentation, though...
I have one which helps brush up on the tactics of racing. It's available from
Criteria instruments 7318 N. Leavitt Avenue Portland, Oregon 97203-4840 phone 503-289-1225 fax 503-286-5896 John P. Laurin bbs 503-297-9073 1200/2400 baun 8,n,1.(ps)
Software/hardware for getting weather faxes: Crane in San Diego. For $119 you get the software, manual shortwave headphone adapter, modulator for IBM compatible. 619 233 0223 (da)
OFS WeathFAX, 6404 Lakerest Court, Raleigh, NC 27612, USA (phone 1-919-847-4545) sell a card with software. It's $355 for the kit, $495 assembled. Foreign orders add $14. Animation software is ``free''. The half-length card goes in your PC, accepting audio from your receiver. It demodulates/displays HF marine fax, along with satellite transmissions. Visa/Mastercard accepted.(la)
Software Systems Consulting, 615 S. El Camino Real, San Clemente, CA 92672, USA (phone 1-714-498-5784) sell a demodulator with software for $250. The (external) demodulator plugs into your PC serial port.(la)
MFJ Enterprises Inc, Box 494, Miss. State, MS 39762, USA (phone 1-323-5869, fax 1-601-323-6551) have the MFJ-1278 ``Multi Mode Data Controller''. It (with software) supports RTTY, CW, SSTV and some other modes, along with fax of course. It is an external unit and connects to your PC serial port. Last price I saw was about $280. Software around $60.(la)
Ed Wallner's TIDES program is one of the simplest and best, and it's shareware! Valid for as long as 200 years from now (albeit with some loss of accuracy). TIDES can be downloaded from many bbs's, or: Edwin P. Wallner; 32 Barney Hill Road; Wayland, MA 01778-3602; 508-358-7938 (pk).
Also you can get TIDES 3.02 by ftp to sunsite.unc.edu (pk).
Other Tides programs: tides202.zip is available for awhile on ftp.ais.org in pub/jon. I haven't checked the accuracy yet, but it appears to do what I want. (jz)
More Software: More prorams are available on the ship to shore bbs. (jz)
Vancouver BC 1-604-540-9596 Portland OR 1-503-297-9073 Alameda CA 1-510-365-8161 Redwood City CA 1-415-365-6384 Chicago IL 1-708-670-7940 Arlington VA 1-703-525-1458 NYC NY 1-718-430-2410