Amateur radio operators also reported for duty, as they do during nearly every kind of disaster, natural or man-made.According to the American Radio Relay Leagueham radio operators were stationed at local hospitals and large nursing homes through the middle of last week in Mendocino County. In ...
4. A receiver radio frequency (RF) section for receiving a RF signal having a frequency within a band of RF frequencies comprising: (a) a plurality of bandpass filters each having a predetermined bandpass range of frequencies; (b) logic means for selecting one of said plurality of bandpass...
For this year, WTWW shortwave radio station will be broadcasting a call in program for field day participants. Frequencies and times from their site: Starting at 2 PM Central Daylight Time (7pm / 1900 UTC) until 7pm CDT (12:00 Midnight / 0:00 UTC) when we will then switch frequencies...
Since I installed my SSB which is for both Marine Channels and the Ham Frequencies I've ran across a good number of other sailing hams and hams on other islands south of us. Looking forward to possibly meeting some of these people on my 2013 trip down the Leeward's and Windward's Under...
I keep getting an error when I try to download from the ARRL LOTW site, or import a local adif file after download, when using the QSO list QSL import feature. The error message is: ":0" is an invalid integer I cannot seem to fix this problem. I deleted cqrlog (on ubuntu), remov...
FREEDOM FIGHTERS FOR AMERICA WORLD RADIO CONTACT: chris@freedomfightersforamerica.com or chris@walkingtall.us "Yet, while denial might placate those who do not prefer to confront unpleasant facts, truth does not mold itself to the wishes and desires of ...
As a result, the dense fringe, composed of high frequencies in the filtering window, is also removed. Therefore, the filtering process may destroy the fringe frequency and result in the loss of fine details, especially in areas of complex textures. To overcome this problem, we can incorporate...