[600MRG] FCC Proposes to Permit Amateur Access: 2200m, 160m topics

James Hollander mrsocion at aol.com
Tue Apr 28 17:42:16 CDT 2015




Non-exhaustive pointers to amateur-interesting material, see http://www.fcc.gov        .  Scroll down and click at  the 4/27/15 entry at left on "implementation-world-radiocommunication-conferences-wrc-07-wrc-12."  FCC Notice of Proposed Rulemaking. 2200m and 160m bands. Get PDF, see pp. 9-20, 58-64, 103, 105, 211, 222-223, and 251-253, 255. 

   135.7-137.8 KHz 2200m: 1W EIRP (over isotropic, 0.61W over dipole)  [pp. 9-15]  FCC would makeamateurs secondary to power utilities' PLC (Power Line Carrier) systems. FCC proposes 2200m amateur stations beseparated from transmission lines by a specified distance, limits on EIRP andantenna heights, and fixed locations only.[p.61, 251-3.] FCC addressesits technical questions to amateurs about 2200m as well as for 630m. [p. 62-66,para. 171-172, 175-181]. FCC asks if 2200m transmit antenna height vs.2200m transmitter power should be regulated, and whether to forbid 2200mautomatic transmitter control. [pp. 64-65]
 
   160m:FCC proposes to raise amateurs from secondary to primary in 1900-2000KHz aswell as the current 1800-1900KHz primary allocation. [pp.15-19] Reasons:  amateurantennas experimentation… efficient, physically low profile MF transmit antennas,anti-skywave transmit antennas…local ground wave coverage while generatingminimal interference at distant points…noise cancelling and weak-signal RXantennas... emergency communications…
    But FCC would authorize buoy stations in 1900-2000kHz, output power <= 10 W, buoy antenna <= 15 feet above sea level.Regarding “Sel-Call buoys”: would authorize ship stations to transmit selectivecalling signals 1900-2000 kHz, with output power <= 10 W, antenna height <=20 feet above the mast of the ship. Non-radiolocation buoys: 1900-2000 kHzprimary to maritime mobile service in Regions 2 and 3, restricted to radio buoyoperations on open sea  only. [pp. 18-20]
 
   2-3.3MHz ham use request is deferred by FCC, different technicalissues. [p20-21 carryover] 
 
  Under-9KHzunallocated amateur use request is also deferred.  [p. 20-21 carryover.] WRC-12 adopted the U.S. proposals re ITU-R studies show the optimalfrequency for arrival time difference (ATD) measurements is around 9.76 kHz,and…lightning detection systems are optimized with 3KHz bandwidth signal from8.3-11.3 kHz.  [p. 55]
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