Hey Andy,

Bear with me here.  I am hearing signals on 14.076 but apparently not 
decoding
all the time.  Suddenly there will be the "huh?" from the program with RRR ? 
and
such displayed on a particular line.  BUT, never did see a callsign 
anywhere.

Then, without warning, I see:

151100  2  -10  -1.4  32  3 #      W6IDS  K7UV  DN31         0     10

Now, apparently I'm being called by HIM.....though I had not been sending up
to that point, just listening and my presence was not visible.  I just 
clicked on
TX1 and sent the li'l callup message shown there (I had double-clicked on 
his
call to insert).  Saw no reply from the station.

I did see following lines ending with RO ?, another ending with OO ? and 
then
finally 73 ?

I believe I screwed up my end of things 'cause I read in one of your 
messages
that "AUTO" was supposed to be on.  I did not do that.  When Auto is on (and
"TX first" is UNCHECKED, the exchange sequence (general messages) take
place automatically and in the right sequence, once I first start 
transmission
with TX1?

Without touching anything, I then subsequently printed CQs from EA4RH
and OZ1JVX  and also  then EA4RH calling OZ1JVX:

153100 11   -9  4.4  -22  3 *      CQ EA4RH IN80             1   0
153300  0  -17  5.3   30  7
153400  0  -17  3.4 -474  3
153500  5  -10  4.4  -22  4 *      CQ EA4RH IN80             1   0
153600  0  -18  3.5 -474  1
153700  3  -12  5.2  -19  2 *      OZ1JVX EA4RH IN80         1   0
153800  0  -18  1.2 -474  1

However, no comm exchange occured it seemed.

I'm showing medium strength signals at one point, yet while decoding, no
info is displayed for several minutes, despite the signal sending.  This now
raises a question about tuning.  All I do is load the program and do nothing
with the SpecJT waterfall window.  Right now, the scale at the top reads
from "0" to 1300 Speed "4".

Does the program automagically lock onto a signal(s) and decode them?
I began today with clicking on a weak signal around 460, the "slider" then
jumped over to it and settled just a little "offcenter" to the right of the 
trace.
Signals seem to be around from 20 to perhaps 900 all morning, but I did
not see any indication that the program was trying to seek and lock on any
of them per se.

Are we supposed to "point 'n shoot" like we might for PSK? Are we supposed
to have the "scale slider" sit right on top of a signal with the red markers 
equally
straddling the trace to get proper print?

While typing this message, here's what I've been receiving in the 
background.
I can see the signals, some stronger than others, but no intelligence being
printed:

162600 10  -20        22  3   73  ?
162700 10  -20        20  4   73  ?
162800  4  -28        19  3   73  ?
162900  0  -16 -0.9   19  5
163000  1  -16  0.0   19  3 #
163100  0  -13  4.0   19  3
163200  0  -20  0.1   19  3
163300  0  -12  2.4   19  3
163400  1  -19 -1.9   19  3 *
163500  0  -21 -1.0   19  1
163600  0  -13  7.3   19  3
163700  0  -19  7.9   19  1
163800  0  -11  3.8   19  3
163900  0  -16 -0.2  972  1
164000  2  -11 -1.3  980  5 #
164100  0  -20  0.5 -207 25
164200  0  -18  2.1 -210  4
164300  0  -21  4.9 -210 11
164400  0  -13  0.1 -137  3
164500  0  -19  6.8  942  1
164600  0  -14  5.5  759  3
164700  0  -16  2.4 -137  3

Now, I know you're just a "ROOKIE"........that said, any insight you can
shed for me?  I'd entertain any insight from anyone else also, for that
matter.  I think others will be interested - there's been a few off line
comments to me, expressing some "intuitive difficulties" as I during
this learning curve.

Howard W6IDS
Richmond, IN

----- Original Message ----- 
From: Andrew O'Brien
To: [email protected]
Sent: Wednesday, April 04, 2007 11:24 AM
Subject: Re: [digitalradio] JT65A Protocol


Dave,

JT65A is the submode for HF use.  The same protocol is used since the 
software is the same. One station calls on the "first minute" (00,02,04,06, 
etc) and the other on the second (01, 03, etc).

  >SNIP<  >SNIP< 

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