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eHam Forums / Digital / Several JT65 RB questions
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on: November 01, 2012, 02:44:55 PM
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I was wondering about a few RB's online. I registered here.. http://jt65.w6cqz.org/receptions.php and now I can see the reports, but they scroll off fast. So, If I call CQ, how do I see if anyone heard me? I assume I am the TX station. Also, when I go to PSKREPORTER.INFO and look at the map, can I put my call in and ONLY see the stations who heard me? These questions seem simple but when I do go to the map there seems to be too much there. Also, when on the w6cqz lists I can see when I am in a contact with someone my call is showing in RX and the person I am working is in TX but I do not see me in TX. Does that mean that no one is hearing me?
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32
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eHam Forums / Digital / RE: Can I test JT65HF with 2 mic's?
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on: October 30, 2012, 08:47:20 PM
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I use a Buxcomm Rascal -- about 10 years old. It needs an RS-232 connection for TX/RX switching, and (with any modern computer) that means you'll have to get a USB-to-RS232 adapter. And that has problems of its own.
There may be a newer "Rascal USB", but I haven't tried it or heard any comments.
The SignaLink USB is probably the easiest interface to get up and running right. Since it has a built-in soundcard, you don't have to worry about Windows changing TX or RX levels. And it does its own RX/TX switching, using VOX. It gets consistent good reviews here, and elsewhere. f you have the cash, it's a good choice.
If the TS-940SAT has a 6-pin "DATA" jack for packet operation (check the manual), you can almost certainly use the standard SignaLink 6-pin cable.
Charles
Well, it has a 6 pin and a 13 pin. I believe the 13 pin is the one to use.
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33
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eHam Forums / Digital / RE: Can I test JT65HF with 2 mic's?
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on: October 30, 2012, 04:29:31 PM
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Good work!
I started PSK31 with an "air interface". It only took about a half-dozen QSO's before I ordered a real interface -- once I knew it worked, I wanted it to work _right_.
Charles
YES, I agree. I got an answer to a CQ from Japan, but our dogs started barking and the "air interface" made it impossible to continue. The rig and computer will move downstairs, but I agree and was thinking of the Signalink USB. Is that what you got? Also, I logged the QSO with JT65-HF and uploaded it to eQSL. Do I need to delete my log file when I work others? I wonder if I don't what eQSL does to dups.
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eHam Forums / Digital / RE: Can I test JT65HF with 2 mic's?
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on: October 28, 2012, 03:57:44 PM
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But holding the mics steady for the length of a JT65 QSO -- let us know how it works out.
It sounds like your antenna (a length of wire) has no "ground side" to work against. In your shoes, I'd wait till I have a real antenna (_any_ real antenna!) before transmitting.
Charles
Well, I found an old 10m dipole that I had made years ago. It now seems to be cut for about 32MHZ! Anyway, I put it in the room as an L and the 940SAT tuner liked it. So, I tried a JT65 CQ. I had the MC85 MIC sitting on the RIG and the goose neck bent over to be near the Computer speaker. A true "Air Interface". I got an answer to my first JT65 CQ! Of coarse I will try a few more, and can not wait to put my R5 up!
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36
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eHam Forums / Digital / RE: Making XP's built in Internet Time work for JT65-HF
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on: October 23, 2012, 12:17:46 PM
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Thank you both. I may try D4 again as there should be no reason for it not to work. Also, will Atomic.exe set at boot up?
Also, with my reg mod, would D4 or Atomic.exe be any more accurate than the XP built-in method?
This program usually only needs to be run once. However if you have timing problems just run it and reset everything. I usually will run it if I reboot to make sure things stay in sync but then I usually leave my PC on 24/7 so it is not an issue. I went to this method after I too had problems with D4. OK, and I do not know what was wrong with D4. I wonder what the default server is before I specified?
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37
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eHam Forums / Digital / RE: Making XP's built in Internet Time work for JT65-HF
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on: October 22, 2012, 06:15:00 PM
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Thank you both. I may try D4 again as there should be no reason for it not to work. Also, will Atomic.exe set at boot up?
Also, with my reg mod, would D4 or Atomic.exe be any more accurate than the XP built-in method?
Well I can tell you this from my experience. When I first started operating JT65 I had the XP clock set to update automatically. After the first day of using JT65 HF I could no longer decode signals. I talked to my buddy about that he he asked if I had my CPU clock synced. I said yes, using the XP clock update. Not good enough he told me, download D4. Did that and have not had any problems since then and it has been close to two years of operating JT65. OK, but was it because the XP clock updated once per week (default) or is it bad even if you change it as I did to every 4 hours? So far I can decode OK. Still, D4 ought to work for me and I think I will try running it again. I think I got ver 5.
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39
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eHam Forums / Digital / Making XP's built in Internet Time work for JT65-HF
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on: October 21, 2012, 01:35:32 PM
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I was going to post this in Computers, but the main interest in having a VERY accurate computer time is, of course, JT65-HF.
I, like many, wanted to try JT65-HF...at least to see if I can receive/decode it. I saw all the tips and they all said to get software like Dimension 4 to keep your system clock accurate. I am using XP and my internet time server was set to 0.pool.ntp.org however my wife uses time.windows.com.
This worked, but it only updates every 7 days. If I boot in the morning (I do not leave my system powered up) and tell the clock to UPDATE NOW, JT65-HF is good for the rest of the day. Anyway, I found a solution that lets you use XP the way it is without using any other software. I did this as I tried D4 and had no luck.
Here is what I thought. IF I could make XP update the clock far more often than every 7 days, it should work. Also, XP must know when the last update was, so that when I turned the system on, it would know that the 7 days was or was not due!
I found the value...in seconds...that XP uses and changed it to 14400 SECONDS. That is 4 hours and it does update every 4 hours. Of course you can make it any number of seconds you want. However, the best part is that when I power on the next morning, the system sees that it is long over due and updates the clock! JT65-HF get an accurate clock every time.
Here is what to do.... I assume you all know how to use regedit. Go to the following KEY
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\W32Time\TimeProviders\NtpClient
Select SpecialPollInterval
Change DECIMAL value from 604800 (7 days) to some other value in seconds. As I said, I used 14400 seconds (4 Hours).
As I said, D4 did not work for me and I did try to set the HTTP value but it kept timing out. I am sure I can fix it but it seems like what I have in XP now works fine.
OH, you will need to reboot in order to see/verify the change.
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40
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eHam Forums / Digital / RE: Can I test JT65HF with 2 mic's?
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on: October 18, 2012, 12:13:13 PM
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TNX, Gene.
Well, I believe I will not use FSK, so I can just use SSB mode for the PSK31 and JT65. I am looking at the Signalink USB as it is easy. Also, how much more is it, by the time you get the connectors and xfmr's, etc? One reason I wanted to try the 2 mic "air" interface is to see how soon those modes get old. I think PSK31 will be OK, but I think JT65HF is just an award mode!
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eHam Forums / Digital / RE: Can I test JT65HF with 2 mic's?
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on: October 17, 2012, 04:38:56 PM
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I've used a 2-microphone "air interface" to do PSK31.
It should work for JT65 -- just get the "mic gain" set correctly, so you don't splatter. JT65 (I think) uses one tone at a time, so you don't have to worry about IMD.
But holding the mics steady for the length of a JT65 QSO -- let us know how it works out.
It sounds like your antenna (a length of wire) has no "ground side" to work against. In your shoes, I'd wait till I have a real antenna (_any_ real antenna!) before transmitting.
Charles
Well, I will have to wait...darn it! I did try to tune with the TS940SAT's tuner but it would not get a match. I will have to put my R5 up, lashed to a deck post and run coax to it just to be sure I get rid of the noise from inside the house. At least I hope that is the source. At any rate, I can not believe what I can decode on 15 and 10 on JT65HF! That is why I tried the XMT just to see if I got anywhere. I guess I am better off that it did not work. I may even try a quick dopole, but would be better off with the R5 back up! Then on to an interface so I do not need the 2 mic interface!
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42
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eHam Forums / Digital / RE: Can I test JT65HF with 2 mic's?
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on: October 17, 2012, 12:15:16 PM
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Thanks ALL:
Yes, 12 seconds. I only asked about 2 mic's as a trial. Not sure just what I will need for an interface for my TS940SAT. Will I need isolation transformer(s)?
I would prefer PSK31 as I am not too sure I like the call, sig rpt and 73 format of JT65. I guess it is the same as the LEO's on 2. I worked a few stations with a homebrew 2/440 antenna and thought "well, that worked...so what". I am afraid I would feel that way about JT65HF. Great for awards though. I will, of course, try it out.
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43
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eHam Forums / Digital / RE: Can I test JT65HF with 2 mic's?
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on: October 16, 2012, 06:13:18 PM
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I've used a 2-microphone "air interface" to do PSK31.
It should work for JT65 -- just get the "mic gain" set correctly, so you don't splatter. JT65 (I think) uses one tone at a time, so you don't have to worry about IMD.
But holding the mics steady for the length of a JT65 QSO -- let us know how it works out.
It sounds like your antenna (a length of wire) has no "ground side" to work against. In your shoes, I'd wait till I have a real antenna (_any_ real antenna!) before transmitting.
Charles
Well, I understand. Perhaps I can make a quick 15M dipole and support it over a few tree limbs. I can keep both mic's stable, so that would be good. I think I prefer PSK31 if the noise level improves as I hope as JT65 is too canned a process. I was a good ragchewer on ssb (and AM) and hate the "5/9" after a 20 second DX contact. I admit falling into that before we moved from CA to OR!
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eHam Forums / Digital / Can I test JT65HF with 2 mic's?
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on: October 16, 2012, 04:23:01 PM
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I installed Digipan and brought my TS940SAT upstairs to my Computer. Jeeze that is one heavy rig! Then I put a hunk of wire into the coax socket. It was about 20 feet thrown around the room. I CAN decode some PSK31, but I have about an S8 noise level. Still surprised it worked at all and I was just testing with a Mic on the 940's speaker. I believe the noise is from all the stuff in the house as it only goes down a few S units with the computer off. My guess is all the CAT 5!
So, I tried installing JT65HF! WOW, even with all that noise I get so many stations from all over on 15M...and 20M, so now I finally get to my question...
Can I test JT65HF using 2 Mics? I mean I know I can get a decode with a mic over the speaker, but can I tell it to answer a CQ and with my MC50 held to the Computer speaker complete a QSO? I guess I have about 14 seconds to press send on the Mic's PTT?
I know RF will be in the room, but I will just run 15-20 watts or so. I guess SWR would not even matter at that power level, or should I just hold off until I put up my R5 again?
Thanks all...just trying to get on again. I still have all the "stuff" for 2KW, but I have not put antenna(s) up yet and have no more desire to run high power!
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eHam Forums / Digital / RE: Too much info on PSK31??
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on: October 13, 2012, 12:52:14 PM
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After 3 pages of responses I find it interesting that the OP never came back. Maybe he thought all the response were to long like the macros he hates.
73 and have a good day wn2c
You know, I always hate that on any forum. I always wonder why someone posts and never returns. This even happens on the TIVO forum where people have a specific question and never return!
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