[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"
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