Andover Emergency management Group invites W1HIS - Propogation

MIT Professor Chuck Counselman, W1HIS, will give a presentation on HF Propagation on May 7th, at 7pm, at the Andover Safety Center in Andover, MA. Hosted by the Andover Emergency Management Group (AEMG) this talk is a general primer on HF propagation.

The talk will be oriented towards the ham who has a 100-W HF transceiver, no amp, and no tower, just a trapped multiband vertical on the ground or a wire 25 ft above ground, and who rarely (if ever) works CW or any of the so-called digital modes. The goal is to enable this ham to choose the best combination of time and frequency to work, say, parts of the USA 50, 150, 1500, and 3000 miles away, the Caribbean, and Europe, by SSB on HF.

The level of the presentation assumes that the intended audience has heard of ionospheric propagation but is fuzzy about how the maximum and minimum usable frequencies (MUF & LUF) vary with time of day, time of year, and solar activity; and what happens around the times of local sunrise & sunset.

The practical, how-to, mechanical aspects of HF ionospheric propagation  will be emphasized while the theoretical aspects are minimized. Just enough of the science will be discussed to help the ham remember why and when things happen.  Covered will be daytime D-region absorption; critical frequencies, such as foF2; NVIS; normal daytime E and F, and normal night-time F2 propagation; single and multiple F-hops.  Little will be said about paths longer than about 5000 miles (8000 km).

 Web sites will be listed where ready-made propagation predictions can be found, and where customized propagation predictions can be generated for the individual's TX power, antenna, and mode (e.g., CW or SSB voice).

all invited

KA1ULN   >>> YL
>>>>>catch me on 28.390<<<<<<
 

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if you are a YL and love Ham Radio, we are looking for YOU.

Please join all YL's on thursday night   9 pm  EST on  14.288 20 meters.  there are YL's all over the world

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33

WSSTVC 15 meter Fall Dash SSTV

This is a short note to remind you of the forthcoming WSSTVC 15-Meter Fall Dash 

SSTV Contest which will be held this coming weekend.

The Contest starts on Saturday, 5 April 2014 at 00:00 UTC, ends on Sunday,

 6 April 2014 at 23:59 UTC, and is held in the 15-meter band.

The Club now has over 450 members, and members are encouraged to take part - 

the more members you contact, the more multiplier points you will receive.

Full rules and more information at http://contests.wsstvc.org .

Please Note: The Contest WILL take place this weekend!  I have unfortunately 

had some medical problems this last few months, and I have not scored the 

Fall 2013 Contest yet, but I am now definitely on the road to recovery. 

Rob DM1CM, WSSTVC Admin.

come and join us.