Search String: Display: Description: Sort:

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TenTec\]\s+Paragon\s+II\s+RS\-232\s+noise\s*$/: 14 ]

Total 14 documents matching your query.

1. [TenTec] Paragon II RS-232 noise (score: 1)
Author: Ken Brown <ken.d.brown@hawaiiantel.net>
Date: Thu, 22 Jan 2009 20:40:50 -1000
I hooked up the serial data port on my Paragon II to my computer for logging of the frequency. There is a buzzing noise in the speaker/headphones with every data string. The volume of the noise does
/archives//html/TenTec/2009-01/msg00301.html (7,211 bytes)

2. Re: [TenTec] Paragon II RS-232 noise (score: 1)
Author: "Vic Klein" <vhklein@ptd.net>
Date: Fri, 23 Jan 2009 07:05:47 -0500
Nope, no noise at all when the RS-232 port is accessed on my Paragon, I just checked. Sounds like something is amiss. =Vic= WA4THR -- -- From: Ken Brown <ken.d.brown@hawaiiantel.net> Reply-to: ken.d.
/archives//html/TenTec/2009-01/msg00302.html (7,800 bytes)

3. Re: [TenTec] Paragon II RS-232 noise (score: 1)
Author: VE1BN <ve1bn@eastlink.ca>
Date: Fri, 23 Jan 2009 12:12:14 -0400
Ken - It never happened with my Paragon II. Is the noise you are experiencing still there when you pull the RS232 Interface Card? Maybe just needs reinstallation to see if the card connector needs cl
/archives//html/TenTec/2009-01/msg00304.html (9,447 bytes)

4. Re: [TenTec] Paragon II RS-232 noise (score: 1)
Author: "jerome schatten" <romers@shaw.ca>
Date: Fri, 23 Jan 2009 08:49:47 -0800
Sounds like the computer and the rig are not at the same AC ground potential. That is, if you measure the AC voltage between those grounds, you may be surprised to see tens of volts. Best, jerome - v
/archives//html/TenTec/2009-01/msg00305.html (9,225 bytes)

5. Re: [TenTec] Paragon II RS-232 noise (score: 1)
Author: "Jim Brown K9YC" <k9yc@audiosystemsgroup.com>
Date: Fri, 23 Jan 2009 10:28:22 -0800
I'd bet on a "pin 1 problem" at one or both ends of the cable. Study http://audiosystemsgroup.com/RFI-Ham.pdf especially "Solving Problems in the Shack" and the K9YC serial cable. Also look at the si
/archives//html/TenTec/2009-01/msg00306.html (8,419 bytes)

6. Re: [TenTec] Paragon II RS-232 noise (score: 1)
Author: "Roger Hughes" <roger.h@comcast.net>
Date: Fri, 23 Jan 2009 21:53:54 -0600
Could be RFI coming from 1 or more places to there. Well Like I do just start undoing cables one at a time untill I goes away. Try another PS. It could be different levels in the ground potential. Or
/archives//html/TenTec/2009-01/msg00307.html (11,112 bytes)

7. [TenTec] Paragon II RS-232 noise (score: 1)
Author: Ken Brown <ken.d.brown@hawaiiantel.net>
Date: Sat, 24 Jan 2009 13:10:44 -1000
Thanks to all for the suggestions for finding the cause of and fixing the RS-232 noise in my Paragon II. Have not tried pulling the card. Turning off the RS-232 communications makes the noise go away
/archives//html/TenTec/2009-01/msg00310.html (10,061 bytes)

8. Re: [TenTec] Paragon II RS-232 noise (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Date: Sat, 24 Jan 2009 18:23:01 -0600
Pin 1 is chassis ground. Some devices have neglected to connect it and that can compromise the cable shielding. Its certainly likely. Then there are RS-232 drivers and RS-232 drivers. The rules of RS
/archives//html/TenTec/2009-01/msg00311.html (12,181 bytes)

9. Re: [TenTec] Paragon II RS-232 noise (score: 1)
Author: "Tom Mandera" <tsm1@tmcom.com>
Date: Wed, 15 Dec 2010 10:48:55 -0700
I have a Paragon II and I have the serial noise as well. "Scratch scratch scratch" every time the computer does anything on the serial line. It's there on the speaker, it's there on my head phones.
/archives//html/TenTec/2010-12/msg00343.html (8,372 bytes)

10. Re: [TenTec] Paragon II RS-232 noise (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Date: Wed, 15 Dec 2010 12:16:38 -0600
How about checking the control board grounding, as well as the cable shield grounding? 73, Jerry, K0CQ _______________________________________________ TenTec mailing list TenTec@contesting.com http:/
/archives//html/TenTec/2010-12/msg00344.html (9,124 bytes)

11. Re: [TenTec] Paragon II RS-232 noise (score: 1)
Author: Richards <jruing@ameritech.net>
Date: Wed, 15 Dec 2010 15:13:13 -0500
Why not call TT while your rig is in the shop and as them if they can fix that also? ==K8JHR == == _______________________________________________ TenTec mailing list TenTec@contesting.com http://lis
/archives//html/TenTec/2010-12/msg00345.html (8,128 bytes)

12. Re: [TenTec] Paragon II RS-232 noise (score: 1)
Author: "Phil Chambley Sr." <k4dpk@comcast.net>
Date: Wed, 15 Dec 2010 15:21:26 -0500
I had an Omni VI that picked up noise off one of the pair from the processor to the DB-25, and the noise was getting into the transmit audio. I wrapped the pair with aluminum foil grounded to the cha
/archives//html/TenTec/2010-12/msg00346.html (8,900 bytes)

13. Re: [TenTec] Paragon II RS-232 noise (score: 1)
Author: Jim Brown <k9yc@audiosystemsgroup.com>
Date: Wed, 15 Dec 2010 12:44:10 -0800
Yes, cable shield connection (NOT GROUNDING) is quite important. It MUST go to the shielding enclosure on both ends. DO NOT CONNECT CABLE SHIELDS TO THE SO-CALLED "GROUND" PIN ON THE DB CONNECTOR --
/archives//html/TenTec/2010-12/msg00347.html (8,378 bytes)

14. Re: [TenTec] Paragon II RS-232 noise (score: 1)
Author: "Dr. Gerald N. Johnson" <geraldj@weather.net>
Date: Wed, 15 Dec 2010 15:23:19 -0600
Two other things that might help involve the RS-232 drivers. In the classic RS-232 standard the rate of rise and fall was limited (which effectively limited serial port speeds sometimes below 1200 ba
/archives//html/TenTec/2010-12/msg00348.html (10,526 bytes)

Current List: 1 - 14
Page: [1]
This search system is powered by Namazu