Great news Skip and Dave,. Thanks from Norway :) 73 de LA5VNA Steinar
Dave AA6YQ skrev: > > Nice work, Skip! Congrats!!! > > 73, > > Dave, AA6YQ > > -----Original Message----- > *From:* digitalradio@yahoogroups.com > [mailto:[EMAIL PROTECTED] Behalf Of *kh6ty > *Sent:* Tuesday, January 01, 2008 9:24 PM > *To:* digitalradio@yahoogroups.com > *Subject:* [digitalradio] NBEMS available for beta testing > > The NBEMS development team is pleased to announce the availability of a > Windows NBEMS software suite for beta testing. > > The NarrowBand Emergency Messaging System (NBEMS) for Windows is a > suite of > software programs designed for point-to-point, fast, error-free, > emergency > messaging up to or over 100 miles distant, and takes up a very minimum of > space on the ham bands, leaving more space for all other ham activites. > > The system is designed primarily for use on the two-meter band, or on HF > with NVIS antennas, where there is a minimum of fading (QSB) to slow down > message transfers. Two meters has the advantage that distances long > enough > to span disaster areas of up to 100 miles can be dependably covered with > small, portable antennas. In hilly regions, if two meters is not workable > over the distances required, NVIS antennas on HF can be employed instead, > but are not nearly as portable. > > The system uses the computer soundcard as the modem and, other than a > simple > interface connection between the computer and transceiver, no additional > hardware is needed. > > Composing and sending emergency messages on NBEMS utilizes the same > Outlook > Express, Outlook, or Windows Mail, email program used for Internet email, > and is no more difficult than sending an email over the Internet. > Messages > just go over the radio instead, when the Internet, phone service, or > repeater system is not locally reachable in an emergency. > > PSK63, PSK125, or PSK250 is used to modulate either two-meter SSB, or > HF SSB > transmitters, using horizontally polarized antennas for greatest > range. Two > meters is unique in that the propagation is more constant than on the > lower > bands from 6 meters on down, range is greater, and absorption less, > than on > the lowest UHF band, 70 cm, so much wider modes, that handle QSB by > continuing to work far below the noise level, are not needed. > > This point-to-point system does not utilize repeaters, or email > robots, for > message forwarding. All forwarding is always done by stations manned > by live > operators on both ends, who can comfirm that a frequency is clear > locally, > negotiate a QSY if necessary to avoid causing interference, and confirm > delivery of a message by the intended recipient. The system depends > upon a > multitude of radio amateurs providing the traditional public service > function, similar to the way they always have, and gives more hams a > chance > to help out with emergency communications without requiring a large > hardware > investment. > > The software can also be used for daily casual communications on PSK31, > PSK63, RTTY, or MFSK16 and is capable of sending flawless, high > resolution, > passport photo-sized color images, in less than 10 minutes over any path > that can sustain PSK250 without excessive repeats. > > All the members on this digitalradio reflector are invited to > participate in > the beta test of the NBEMS. The NBEMS suite can be downloaded for beta > testing from: http://w1hkj.com/NBEMS/ <http://w1hkj.com/NBEMS/> . > > Please give the system a try and send comments and bug reports to > [EMAIL PROTECTED] <mailto:KH6TY%40comcast.net>. > > Happy New Year to you all! > > The NBEMS Development Team > > Skip, KH6TY > Dave, W1HKJ > >
