IC-R8600 – Wideband Communications SDR Receiver
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The IC-R8600 is a super wideband communication receiver that covers the radio spectrum from 10 kHz to 3 GHz. It also has the capability to decode selected digital communication signals including, D-STAR, NXDN, dPMR and P25. The ... Читать дальше »
THIS WEEK'S CONTESTS September 10 - 17, 2018 Edition
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THIS WEEK'S CONTESTS:
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ARRL September VHF Contest: 1800Z, Sep 8 to 0300Z, Sep 10
Geographic Focus: United States/Canada
Participation: Worldwide
Mode: All
Bands: 50 MHz and up
Classes: Single Op All Band(Low/High)
Single Op Portable
Single Op 3-Band
Single Op FM
Rover
Limited Rove
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SB PROP @ ARL $ARLP036
ARLP036 Propagation de K7RA
ZCZC AP36
QST de W1AW
Propagation Forecast Bulletin 36 ARLP036
From Tad Cook, K7RA
Seattle, WA September 7, 2018
To all radio amateurs
SB PROP ARL ARLP036
ARLP036 Propagation de K7RA
Sunspots disappeared again, since August 28. Average daily sunspot
number dropped from 17.7 (during the prior week) to 0, (naturally).
Average daily solar flux declined from 70.6 to 67.8. Geomagnetic
indicators quieted, with average daily planetary A index changing
from 19.9 to 6.3, and mid-latitude A index going from 13.4 to 5.9.
Predicted solar flux is 68 on September 7-14, 75 on September 15-17,
72 on September 18-22, 70 on September 23, 68 on September 24
through October 1, 70 on October 2-6, 72 on October 7, 70 on October
8-9, 75 on October 10-14, 72 on October 15-19, 70 on October 20 and
68 on October 21.
Predicted planetary A i
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