[CW] International Beacon Project (IBP)

D.J.J. Ring, Jr. n1ea at arrl.net
Sun Oct 8 23:21:12 EDT 2023


United Nations
4U1UN
New York City
Canada
VE8AT
Eureka, Nunavut
United States
W6WX
Mt. Umunhum, CA
Hawaii
KH6RS
Maui
New Zealand
ZL6B
Masterton
Australia
VK6RPB
Rolystone
Japan
JA2IGY
Mt. Asama
Russia
RR9O
Novosibirsk
Hong Kong
VR2B
Hong Kong
Sri Lanka
4S7B
Colombo
South Africa
ZS6DN
Pretoria
Kenya
5Z4B
Kariobangi
Israel
4X6TU
Tel Aviv
Finland
OH2B
Lohja
Madeira
CS3B
São Jorge
Argentina
LU4AA
Buenos Aires
Peru
OA4B
Lima
Venezuela
YV5B
Caracas

Listening on:

20m. 14.100 MHz
17m  18.110 MHz
15m  21.150 MHz
12m  24.930 MHz
10m  28.200 MHz

An operator at home listening won't hear all 18 one after the other but may
copy several during the sequence.
Each station starts its transmission sequence with the call-sign sent at 22
words a minute. This is followed by four dashes. The first dash is send
using 100 watts, the next at 10 watts, then one watt and finally 100
milliwatts. The whole process takes ten seconds, then the next station in
the sequence starts
transmitting on that frequency and so on around all 18 across the world.

The reduction in transmitter power for the four dashes gives the listener
an indication of band conditions. For instance, hearing the 100 watt and
10-watt signals, but not the lower two power tones, could mean that you may
not be able to have contacts with stations themselves using low power or
have a less efficient antenna system and poorer location that the beacon.
If you can hear the final 100 milliwatt signal, that that means the band is
wide-open to that region of the world.
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