Thursday, January 14, 2010
ALL EMCOMM STATIONS
FROM: D W THORNE, K6SOJ, WRRL-1
DATE/TIME: JAN 14, 2010 1940Z
SUBJECT: HAITI DISASTER SPECIAL BULLETIN NR 2
INFORMATION GATHERED FROM VARIOUS SOURCES -- DISSEMINATE AT WILL
ADDITIONAL AMATEUR FREQUENCIES that may be active with EMERGENCY traffic:
3977, 3985, 7265, 7290, 14265, and 14300 kHz.
Avoid transmitting within 3 kHz (on either side) of these frequencies except for EMERGENCY or PRIORITY traffic.
Normal protocol for major disasters is NO INBOUND "Health and Welfare" (W) or Routine (R) traffic for a minimum of 72 hours. There are only 143 (est.) licensed amateurs in Haiti. Only one or two stations are known to be QRV. It will probably be much longer before any inbound DWIs (Disaster Welfare Inquiries) can be handled or processed. Even when W or R traffic addressed to Haiti can be accepted, it may be many weeks before relief agencies have information or means to contact survivors and reply.
RECOMMEND: EMCOMM traffic stations my accept message traffic...but advise the originating person/party that it will be held until a means to forward/deliver it can be established. (After Hurricane Katrina there thousand of DWIs that were never delivered.)
SUGGEST: EMCOMM operators advise persons with DWIs to contact U.S. Dept. of State, the American Red Cross or the Salvation Army (they all have websites for this purpose) and follow the instructions provided.
BULLETIN from JAN 13:
All radio amateurs are requested to keep 7045 kHz and 3720 kHz clear
for possible emergency traffic related to the major earthquake in Haiti.
International Amateur Radio Union (IARU) Region II Area C Emergency
Coordinator Arnie Coro, CO2KK, reports that as of 0245 UTC on January
13, nothing had been heard from radio amateurs in Haiti, but that the
above frequencies were being kept active in case any Haitian hams
manage to get on the air, and in case of other related events in
surrounding areas, including aftershocks and a possible tsunami.
7045 is CW only. (RTTY and data is also legal in the U.S.)
3720 is CW and phone (LSB) in U.S. and is limited to advanced and extra class amateurs
HOW TO READ PROPAGATION NUMBERS
The A index [ LOW is GOOD ]
- 1 to 6 is BEST
- 7 to 9 is OK
- 11 or more is BAD
Represents the overall geomagnetic condition of the ionosphere ("Ap" if averaged from the Kp-Index) (an average of the eight 3-hour K-Indices) ('A' referring to amplitude) over a given 24 hour period, ranging (linearly) typically from 1-100 but theoretically up to 400.
A lower A-Index generally suggests better propagation on the 10, 12, 15, 17, & 20 Meter Bands; a low & steady Ap-Index generally suggest good propagation on the 30, 40, 60, 80, & 160 Meter Bands.
SFI index [ HIGH is GOOD ]
- 70 NOT GOOD
- 80 GOOD
- 90 BETTER
- 100+ BEST
The measure of total radio emissions from the sun at 10.7cm (2800 MHz), on a scale of 60 (no sunspots) to 300, generally corresponding to the sunspot level, but being too low in energy to cause ionization, not related to the ionization level of the Ionosphere.
Higher Solar Flux generally suggests better propagation on the 10, 12, 15, 17, & 20 Meter Bands; Solar Flux rarely affects the 30, 40, 60, 80, & 160 Meter Bands.
K index [ LOW is GOOD ]
- 0 or 1 is BEST
- 2 is OK
- 3 or more is BAD
- 5 is VERY VERY BAD
The overall geomagnetic condition of the ionosphere ("Kp" if averaged over the planet) over the past 3 hours, measured by 13 magnetometers between 46 & 63 degrees of latitude, and ranging quasi-logarithmically from 0-9. Designed to detect solar particle radiation by its magnetic effect. A higher K-index generally means worse HF conditions.
A lower K-Index generally suggests better propagation on the 10, 12, 15, 17, & 20 Meter Bands; a low & steady Kp-Index generally suggest good propagation on the 30, 40, 60, 80, & 160 Meter Bands.
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