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Message |
    
Bob_p
Advanced Member
Username: Bob_p
Post Number: 658
Registered: 7-2004
| | Posted on Friday, January 21, 2005 - 2:40 pm: | 
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Recently I was in the radio shack and my wife turned the TV on, and the noise level jumped from dead quite to between 3 and 5 S units of noise. I've checked a couple of times, turning the set on and off and it is the T.V. The Television is a plain old CRT, (no a Hi-Def or a plasma sets here) and it's only about a year old.
Does anyone have a solution for this? It pretty much knocks out my ability to use the radios on everything but 10,11, and 12 meters, but even there I can hear a slight increase in noise in the noise level.
Thanks in advance
Bob |
Chad
Member
Username: Chad
Post Number: 99
Registered: 11-2004
| | Posted on Saturday, January 22, 2005 - 12:25 pm: |
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The televisions are finally getting back at us! Think they make a CBI filter. Does all the TV's do it or is it isolated to that one. I'd choke the power cord and see what happens, if not the TV is becoming a radiator, has this always happened? if it just started then something may bve going wrong with the TV. |
Bob_p
Advanced Member
Username: Bob_p
Post Number: 660
Registered: 7-2004
| | Posted on Thursday, January 27, 2005 - 12:53 am: |
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Chad thanks for responding.
It is only the new Toshiba set that is causing problems. The other sets don't cause any problems at all. The Toshiba fits in our entertainment center, where our Hitachi is too big even though they are both 32" sets. The entertainment center is a solid oak three piece set that my wife isn't willing to part with, so we had to find a set to fit in it, and all of the better new sets are too deep, and wide.
I just bought the HF rig in November, but don't remember it causing problems at first, but I just might not have noticed it.
I've heard of Plasma and HD sets causing problems, but this is a standard TV and is only about a year old. But I realize that doesn't mean that there isn't something wrong with it.
I don't know if this means anything, but I recently put a new 20 meter dipole up, and was checking the area with a field strength meter, and as I walked passed the TV towards the front door, the needle shot up to the far right of the meter. So I walked back away from the set about 4 feet and it was still showing about 3 out of 5 on the meter. When I turned the TV off the meter went flat.
I also think it's strange that the TV doesn't bother 10,11, or 12 meters, but causes about 3 to 5, S units of noise on 15, 17 and 20 meters.
By the way I was curious and unplugged the cable box, thinking that maybe the set was interacting with the box, but the noise was still there. I guess I should have disconnected the coax and Audio/video cable too but...
So for now if I want to use 15,17 or 20 meters I have to make sure the set is off, and with people in the house that can be a problem.
I don't know if ther is a filter of any sort that might stop the RF, but am willing to try any suggestions.
Thanks
Bob |
Kid_vicious
Intermediate Member
Username: Kid_vicious
Post Number: 176
Registered: 9-2004
| | Posted on Thursday, January 27, 2005 - 4:30 pm: |
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check all of the coax connections going into and out of the TV. if you are using ANY premade jumpers, throw them away. i have never seen a high quality cable on a pre made jumper. you're a radio nut right? go buy some RG-59 or RG-6 and put the good quality connector on yourself; if you feel you can do it right. i agree with wrapping the power cord around a ferrite stick.
did you buy this TV used? was it on for very extended lengths of time in its previous environment? like say in a bar? if it was over used you might have to degauss to screen. if you dont know what i mean by this, then you definitely dont want to do it yourself!
hope i helped.
matt |
Bob_p
Advanced Member
Username: Bob_p
Post Number: 666
Registered: 7-2004
| | Posted on Thursday, January 27, 2005 - 6:34 pm: |
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Kid_vicious Thanks for responding. I bought the TV new as I mentioned it was a cheap set. I only paid $400.00 for it at Best Buy. I'll try to get a couple of ferrite sticks here in the next week or so. Depending on how fast they ship them from my source.
I do have a few snap on beads that I'll try, but I've never heard of anything like this from a new set.
The TV does stay on most of the time at the house since my wife and I are both retired, she spends time either watching court TV or on the computer. She does do some voluneteer work, but it's only a few hours a week. So the set gets alot of day time use. Basically it's on from about 9:00am to 12:00pm every day.
Thanks for the suggestions
Bob |
Kid_vicious
Intermediate Member
Username: Kid_vicious
Post Number: 179
Registered: 9-2004
| | Posted on Thursday, January 27, 2005 - 9:54 pm: |
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if you bought the TV new then you neednt be concerned with the usage. i was referring to used sets that have been on 24hrs. a day for five years. maybe its a brand thing; like Toshiba's audio amplifier board is leaky or something. i know how annoying interference can be when you are trying to listen to static looking for weak signals. it can make listening unbearable. OK, here's the solution: get some copper based paint. they make it with actual copper powder in it. paint the entire living room with it, and tell the wife its the new trendy look. then just ground the TV to the wall. and when i say "to the wall" i mean "to the wall!"
matt |
Chad
Intermediate Member
Username: Chad
Post Number: 113
Registered: 11-2004
| | Posted on Friday, January 28, 2005 - 8:46 am: |
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Check this out: http://www.technewsworld.com/story/37435.html
This story came out one day after I installed 5 identical models here. |
1861
Junior Member
Username: 1861
Post Number: 48
Registered: 2-2004
| | Posted on Friday, January 28, 2005 - 12:21 pm: |
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BOY , THAT IS SCARY , TO THINK THE FCC CAN FINE YOU FOR WATCHING TV. THINK I,LL LEAVE THE TV OF AND STICK TO MY CB,s |
Chad
Intermediate Member
Username: Chad
Post Number: 116
Registered: 11-2004
| | Posted on Friday, January 28, 2005 - 2:21 pm: |
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No kidding. It was a college student, when I was in college the last thing I wanted was ANYONE federal in my place while I was "watching TV"
So I guess Toshiba's may have a little leakage?
Better yet what was oscillating? I can't think of anything in a TV that needs to be running at 121.5 MHz.
A Pentium class on screen display ?  |
Sg569
Member
Username: Sg569
Post Number: 67
Registered: 12-2004
| | Posted on Friday, January 28, 2005 - 2:46 pm: |
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I agree 1861, That is scary. |
Chrisdey
New member
Username: Chrisdey
Post Number: 1
Registered: 1-2005
| | Posted on Friday, January 28, 2005 - 11:55 pm: |
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Have TVI problems with my neighbor. He has three tv's, I only come accross one. I have Galaxy DX 95 T peaked and tuned on 90' of 213 with a balun up top, lightning arrester and an IMAX 2000. I have a para-dynamic low pass and a Bencher low pass. Gave my neighbor two inline high pass filters and one for his a/c to plug his TV into. Have a ferrite torroid on the was to wrap his a/c line around and have the radial kit on order from IMAX.
I can increase the mast height 18 more feet to 36' mast height, 60 feet total to the top of antenna. What else can I do? Is there andything obvious I am missing. I have a great neighbor and must keep great relations with him. But love my radio and don't even run any heat. I turn it down low and talk only on side band. Let me know if I am issing anything. Thank you in advance.
Kindest regards,
Chris in NJ |
Bob_p
Advanced Member
Username: Bob_p
Post Number: 668
Registered: 7-2004
| | Posted on Saturday, January 29, 2005 - 12:33 am: |
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That really is nuts, thanks for the link.
I just put new monter cables on everything in the entertainment center, and it is still sending out RF.
As far as it goes the TV is HD ready, and has a good size menu. But does the other set, so it never made any sense to me why when I turned on the Toshiba it would lnock out my radio that way.
Thanks again for the link
Bob |
Kid_vicious
Intermediate Member
Username: Kid_vicious
Post Number: 185
Registered: 9-2004
| | Posted on Saturday, January 29, 2005 - 4:21 pm: |
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bob p, i think you should contact Toshiba and mention that article. you might just get a new TV out of the deal. have you wrapped the power cord around some ferrite yet?
chrisdey, you are going to continue to bleed on your neighbor until you do two things:
1. ground your station properly. im not going to go into how to do this, just do a search in this forum for "grounding" and follow the techs' advice.
2. REPLACE YOUR MODULATION LIMITER! when you had your radio "peaked and tuned", (gosh i hate that term!) someone probably removed a part in your radio and now you are creating all kinds of spurious emissions, it may make your meter swing like crazy, but it is all a lie. run your radio stock with a good mic, maybe alittle echo, or a speech processor.
as far as the antenna height goes: definitely push the antenna up another 18'!!! putting the base of your antenna at 36' is going to make you get out better and hear further than you ever have. the radials will help the interference too, but not if you have a clipped limiter.
matt |
Bob_p
Advanced Member
Username: Bob_p
Post Number: 670
Registered: 7-2004
| | Posted on Saturday, January 29, 2005 - 4:35 pm: |
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Kid_vicious thanks for asking. I did put three snap on ferrite beads on the power cord, with no differnce in the problem.
I sent Toshiba an e-mail and will call them on Monday. Hopefully they can do something, I have the receipt and it's dated 11/24/03.
Thanks again
Bob |
