[Elecraft] FCC Proposes to Permit Amateur Access to 2200 and 630 Meters

Edward R Cole kl7uw at acsalaska.net
Tue May 5 03:21:53 EDT 2015


Old topic (getting caught up on my e-mail since being on 12-day vacation):

I have been using my K3/10 since 2010 on 630m (have both KXV3 and 
KBPF3 installed).  TEST mode allows transmission thru transverter I/F 
at 0.1-1.5mw and reception down to 490-KHz with original SYNTH.  I 
use my K3 to drive a surplus NDB transmitter at 0.1mw in place of the 
xtal osc section to get 100w output.  I use a 43-foot by 122-foot 
inverted-L with short ground radials to achieve about 3w 
ERP.  Furthest reception of my CW has been Buffalo, NY.  I have 
received signals from Oregon and BC here in grid BP40 (Alaska).

The new SYNTH will enable use to 472-KHz/478-KHz which is the 
proposed band for ham use.  I am authorized to transmit thru license 
with WD2XSH/45 (ARRL Experimental Group).

I use either my K3 or a SDR-IQ as Rx on 630m achieving down to -115 
dBm reception (lowest noise floor using the Inv-L).  I have run both 
CW and WSPR.

Antenna currently down by wind breakage (minor).  I support my inv-L 
by two 50-foot towers separated 130-foot apart.  My signal is 
received 70-mi away at 35 dB SNR by ground-wave 24/7/365.  Ground 
wave appears to be solid out to 250mi.  Sky wave is night-time prop 
and best in winter when atmospheric static is lowest.

73, Ed - KL7UW
http://www.kl7uw.com
     "Kits made by KL7UW"
Dubus Mag business:
     dubususa at gmail.com



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