Friday, April 15, 2011
Use of the special prefix, which is "GR", "MR" or "2R" is conditional on allocation of a Notice of Variation to the License (NoV) which can be quickly obtained via a simple process on this RSGB web site, which also contains all relevant information.
The last date and time for application is 18:00 BST on Tuesday 26th April 2011. All NoVs which are approved by Ofcom will be provided by close of business on Thursday 28th April 2011. No postal applications will be accepted and all NoVs will be sent by Email to the address supplied as part of the application.
For more info, Click Here
I am hoping to write up a few reviews next week on the HEIL Pro Set Plus, Yaesu FTM 350 AR and the MFJ 1279M Deluxe Multimode Sound Card Interface. It has been a while since I have done a review, mine or someone else's.
This weekends contest.
|NCCC Sprint Ladder||Apr 15|
|Holyland DX Contest||Apr 15-16|
|TARA Skirmish Digital Prefix Contest||Apr 16|
|ARLHS Annual Spring Lites QSO Party||Apr 16-24|
|ES Open HF Championship||Apr 16|
|CQ Manchester Mineira DX Contest||Apr 16-17|
|Feld Hell Sprint||Apr 16|
|Michigan QSO Party||Apr 16-17|
|EU Spring Sprint, SSB||Apr 16|
|EA-QRP CW Contest||Apr 16-17|
|Ontario QSO Party||Apr 16-17|
|YU DX Contest||Apr 16-17|
|ARRL Rookie Roundup, SSB||Apr 17|
|Run for the Bacon QRP Contest||Apr 18|
Articles of Interest;
|Dayton 2011 Contest Dinner|
|Dayton ConTest University - CTU USA 2011|
|WRTC 2014 Team Selection Critera Released|
|2010 WWSA Update|
|New Amateur Radio Operators Organization|
|98th Anniversary of the Titanic Disaster|
Big B to brush up his ham radio skills
ARNewsline Report 1757 -- April 15 2011:
ZM Amateur Radio prefix for Rugby World Cup
When Pig's Fly Special Event Stations
Amateur radio enthusiasts set to run Speyside special
Elementary School Students Make Contact with Astronauts
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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