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Re: LF: 500 kHz JT4A

To: "[email protected]" <[email protected]>
Subject: Re: LF: 500 kHz JT4A
From: Rik Strobbe <[email protected]>
Date: Fri, 22 Jan 2010 22:47:44 +0100
In-reply-to: <[email protected]>
References: <[email protected]> <[email protected]> <[email protected]> <[email protected]>
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Sender: [email protected]
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Gary,

OK, I just decoded you (see previous mail).
But signals are that strong that CW would be armchair copy.
I guess I have to figure out the sync problem (as I understand a good value would be 20 or more). Inituitive I assume that tuning into a signal is done by clicking on the trace, but even if I click on your signal (and see a marker on your freq.) most of the time it is still decoding Jim. Another odd thing: when I decode you you get the same "dB" value (-2) as Jim, while Jim's signal is a lot stronger.

73, Rik  ON7YD - OR7T

Quoting Gary - G4WGT <[email protected]>:

Rik,

That will be me on 503.600 kHz. I will put the power up a bit.

73,  Gary - G4WGT

2010/1/22 Rik Strobbe <[email protected]<mailto:[email protected]>> As said I haven't read any instructions / manual but maybe the figures WSJT7 spits out on the readable copies of Jim may give a clue:
Sync = 9
dB = -2
DT = 0.0
DF = -107
W = 33

73, Rik  ON7YD - OR7T


Quoting Rik Strobbe <[email protected]<mailto:[email protected]>>:

Hello Gary, Jim,

I just fired up WSJT7 in JT4A mode.
I can see a very fat trace at 503.460 that decodes as "TEST M0BMU" and
a little less fat trace at 503.600 that is probably Gary. But even if
I set the marker on 503.600 (1300Hz audio) I still keep decoding "TEST
M0BMU".
It is my first test with JT4A and I haven't read the instructions /
manual, so it is intuitive use.

73, Rik  ON7YD - OR7T

PS: both signals are clearly audible (Jim is S7)

Quoting Gary - G4WGT <[email protected]<mailto:[email protected]>>:

LF,

I will be beaconing WSJT JT4A again this evening & I would welcome
any decodes, I have made changes in view of not decoding a reply
last night. I just need to confirm my outgoing signal before
changing Tx operation to CQ calls.

502.300 kHz USB dial frequency. Tx 503.600 kHz on even minutes.

73,

Gary - G4WGT.













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