Dick,
Greetings from the Marshall Islands and from a fellow Paragon User.
I am sorry to hear the troubles you are having with you Paragon. I use RTTY
here on my Paragon and have not had that trouble but there is one difference
in our setup. I run the Paragon in RTTY mode (Shift CW) and input a TTL
level into the rig and it generates the FSK internally.
I do use the Paragon in SSB with an audio input in the PSK31 mode and have
had no troubles but I can offer these suggestions.
Make sure the Power connector on the back of the rig is clean and tight. I
have had trouble previously on my rig when it was run in RTTY at a club
station. The connector got hot enough to partially melt and turn brown the
connector in the rig itself. You may want to insert a tool into the
connector to slightly retighten the female side of the plug, especially if
these look enlarged or distorted. The outside two are the DC and the inner
two carry the AC for PS switching (not used on the Paragon). Since you have
redone all the grounds and since it does not happen until you have been
transmitting for quite some time I think it is power related. If it was RF
getting into the rig it would happen from the start of the transmission. You
might take a scope and put it on the DC to the rig and see what happens
after you transmit a while in RTTY. Look for "spiky" negative going pulses
which could make the processor in the Paragon lock up. I had this happen
with my Paragon and Ten Tec supply when some of the smaller value filter
caps in the Power Supply were going bad. I chased trouble around the rig for
a long while before I realized that it was a power supply trouble. You noted
that the Paragon locks up when going "from transmit to receive". Check for
spikes or glitches on the power supply during this TX/RX cycle.
Hope this helps you some, Dick. Let me know what you find.
Regards,
George V73GT
************* Original Message ***************
From: "Dick White" <KS0M@KTIS.Net>
To: "Post Mail Ten Tec" <tentec@contesting.com>
To: <tentec@contesting.com>
Date: Sat, 22 Jun 2002 09:50:13 -0500
Subject: [TenTec] New kid on the block
Hello to all of you. I just found out about this reflector and this is my
first post. I was told that someone on this reflector might be able to help
me with my Patagon problem. I have had a Paragon problem for six months and
have been unable to fix it. It first happened on December 30, 2001.
Problem: When doing RTTY in the LSB setting, the Paragon "locks up" on me
when doing a QSO as it goes from transmit to receive. By "lock up" I mean -
all the button lights come on, the frequency changes and cannot be changed,
nothing works and the rig will not respond to any command. The only solution
is to turn the rig off- turnback on and hit the reset button. This puts it
back into the default settings. I have to reset everything (time,
freq.-memories etc.) so I can continue to operate. Needless to say, the
person I was in QSO with is either confused, gone or both. I usually run
about 25 watts of power for RTTY ( and the amp if I need more). This problem
happens no matter what power setting I use. But, I can run a RTTY contest
ok. It has locked up on me only once during a contest when I called CQ
several times in a row. The short contest exchange does not cause this to
happen ( so far). It always happens when I am in transmit too long.
Note: this does not happen when I am working CW. I can run long winded CW
QSO's all day and this never happens. I have put it in CW, key down with 50
watts for 5 minutes and it never failed. I do not have a Mic and the Paragon
has never been used for phone in LSB or USB. I started working RTTY in LSB
about five years ago and had no problem until last December.
What have I done: The Paragon was sent to Ten Tec January 2002. They
returned it to me saying there was nothing wrong with it when they tested
it. I never found out how they tested it when it was in the shop. That is,
did they try RTTY in the LSB mode ?? I never got an answer. Long telephone
conversations with Don at Ten Tec did not produce a cure. He did say that
the Paragon is very sensitive to RF and I could have a ground loop. I have
reworked the ground system and added more rods and wire. I have put toroids
on everything and there has been no change. I have tried many things to fix
this, without success. The Paragon was set up at a friends house and it
"locked up" when we tried RTTY in the LSB mode. My IC-735 back up rig does
RTTY in LSB without this problem. I still think there is something wrong
with the rig andTen Tec missed something when they had it. Hate to send it
back.
Comments and questions will be appreciated. Maybe someone has run into a
similar problem. Thanks for letting me in. I have had this Paragon since
Dayton 1998 and I like it so well that I want to keep it. It is by far the
best CW rig ever. I may give up and dedicate my back up rig to RTTY and
continue usong the Paragon for CW only.
73....Dick - KS0M
Richard C. "Dick" White ks0m@ktis.net
Fulton, MO. 65251-2215
Amateur Radio Station - KS0M (ex WB0WLX - KC0MY)
ARRL DXCC Honor Roll / CW - 5BDXCC #3295 / CW
Life Member, American Radio Relay League
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