You keep pulling tricks out of the hat to make things work! That is great and maybe you can apply OP4H DDS to the various 9 kHz stations on the air!
I saw my signal pop-up on the spectagram and I kept the TX on and all of a sudden at about 0650 UT the signal dropped out like someone threw a switch! No fading-no warning just gone! I shut down at 0700.
I think you agree there is no better mode that can match your DS and certainly nothing to come close to DDS. Bob
From:
[email protected]To:
[email protected]Date: Wed, 2 Apr 2014 10:19:00 +0200
Subject: Re: LF: 29.499 tonight OP2H/DS...
Days are getting warmer, nights are shorter,
and QRN is increasing...
This morning
was noisier than last night, and the Op-2H carrier was not very
conspicuous here in the 106 uHz spectrogram. Anyhow a "deep deep search"
with reduced carrier detection threshold produced a single hit with decent
correlation:
2014-04-02 05:54:29 WH1XBA 6448km
29499.000Hz 0mHz -60.5dBOp 100% 14.6dB
I have annotated those reduced-threshold detections
by an asterisk and added them to the table at the bottom of the opds
page
Best 73,
Markus (DF6NM)
Sent: Tuesday, April 01, 2014 9:17 AM
Subject: Re: LF: 29.499 tonight OP2H/DS...
Bob, in spite
of your carrier standing out well above the noise this morning, overnight
opds-2H produced no hits above the correlation threshold which is
currently set to 14 dB. Rerunning the data with lower
threshold showed one close detection:
2014-04-01 02:59:24 WH1XBA 6448km
29499.000Hz 1mHz -56.1dBOp 100% 13.8dB
and another one which seemed to have good SNR
and plausible timing but very low correlation:
2014-04-01 05:10:42 WH1XBA 6448km
29499.000Hz 1mHz -51.9dBOp 76% 11.8dB
Unfortunately no trace from Dex on 29501 became
visible.
Best 73,
Markus (DF6NM)
Sent: Monday, March 31, 2014 7:09 PM
Subject: LF: 29.499 tonight OP2H/DS...
WH2XBA NY on VLF for the evening with above OPERA mode-All decodes
and detections wanted-thanks, Bob
