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Alex, all,
yes, both Opera and WSPR (and likely also JT9) can
decode partial transmissions from about 50% upwards. Last night I actually started another Op-32 sequence at
22:00, but had to abort the transmission after 20 minutes when it started to
rain. Anyhow pskreporter later showed a number of successful
decodes with 22:33 timestamps.
Given a strong enough signal, opds deep
search often finds a correct correlation after less than 20% of the
sequence is through, creating a "look-ahead" spot in the output.
Best 73,
Markus
Sent: Sunday, September 29, 2013 7:51 PM
Subject: LF: interesting Opera's facts
Dear LF enthusiasts!
Has an interesting facts for
the past night:
- I TX and RX a 15 min periods.
- at the same time, were RX Op8 and
Op32
00:06
136 SM6BHZ de R7NT Op32 2149 km -29 dB in KN97LF with 0.5ERPw + 20 m
Vert
00:00
- 00:15 TX WSPR-15 R7NT
23:45
- 00:00 RX R7NT
23:30
- 23:45 TX WSPR-15 R7NT
23:34
start TX Op32 by SM6BHZ
22:30
136 SM6BHZ de R7NT Op32 2149 km -32 dB in KN97LF with 0.5ERPw + 20 m
Vert
22:15
- 22:30 RX R7NT
22:00
- 22:15 TX WSPR-15 R7NT
21:58
start TX Op32 by SM6BHZ
19:01
136 DF6NM de R7NT Op32 -36 dB in KN97LF
18:45
- 19:00 RX R7NT
18:30
- 18:45 TX WSPR-15 R7NT
18:29
start TX Op32 by DF6NM
ie sufficient 50% of
reception (???) Hartmut
Wolff, DL-SWL and Bob, W2ZM - CONGRATS! First NA in EU on
73kHz!
Beacon WSPR-15 is ON 137603 15min TX / 15min RX, WsLoop, Op8/Op32
RX ON
73! Alex R7NT 136.73.ru
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