[600MRG] On the air

[John Langridge]

Per RBN, seems to be working well based on your late evening and
overnight tests!

  NR4U	  W8JI 	378 mi	474.2	CW	CQ	-1 dB	16 wpm	0635z 15 Jan	4 hours ago
  W3OA	  W8JI 	247 mi	472.7	CW	CQ	2 dB	16 wpm	0632z 15 Jan	4 hours ago
  KB5NJD	  W8JI 	750 mi	472.7	CW	CQ	7 dB	16 wpm	0630z 15 Jan	4 hours ago
  NR4U	  W8JI 	378 mi	472.7	CW	CQ	2 dB	16 wpm	0629z 15 Jan	4 hours ago
  W3OA	  W8JI 	247 mi	472.7	CW	CQ	3 dB	16 wpm	0540z 15 Jan	5 hours ago
  NR4U	  W8JI 	378 mi	472.7	CW	CQ	5 dB	16 wpm	0539z 15 Jan	5 hours ago
  NR4U	  W8JI 	378 mi	472.7	CW	CQ	4 dB	16 wpm	0502z 15 Jan	5 hours ago
  NR4U	  W8JI 	378 mi	472.7	CW	CQ	1 dB	16 wpm	0452z 15 Jan	5 hours ago
  NR4U	  W8JI 	378 mi	472.7	CW	CQ	8 dB	17 wpm	0427z 15 Jan	6 hours ago
  NR4U	  W8JI 	378 mi	472.7	CW	CQ	6 dB	17 wpm	0402z 15 Jan	6 hours ago
  W3OA	  W8JI 	247 mi	472.7	CW	CQ	3 dB	17 wpm	0358z 15 Jan	6 hours ago
  KB5NJD	  W8JI 	750 mi	472.7	CW	CQ	2 dB	17 wpm	0355z 15 Jan	6 hours ago
  NR4U	  W8JI 	378 mi	472.7	CW	CQ	2 dB	17 wpm	0352z 15 Jan	6 hours ago
  W3OA	  W8JI 	247 mi	472.4	CW	CQ	3 dB	17 wpm	0339z 15 Jan	7 hours ago
  NR4U	  W8JI 	378 mi	472.5	CW	CQ	2 dB	17 wpm	0337z 15 Jan	7 hours ago




On 1/14/23, Tom W8JI <w8ji at w8ji.com> wrote:
> I was disappointed in my IC7100.
> I now have an IC751A running. Being a 1.8-30 MHz rig the PA is a whole
> lot lot better on 472kHz.
>
> I measured off 510 feet of #10, attached an insulator 190ft from one
> end, and pulled it up with the short section vertical. I now have an
> Inverted L with ~190 ft vertical and ~310ft horizontal between two
> towers, using an existing large radial field. It measures 41 j0 at
> 472kHz and models about 25-30% efficiency.
>
> I hope the attached file helps someone else. It took me several hours to
> figure out the IC751A! I almost gave up on it.
>
> 73 Tom
>
>
> --
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