| Author |
Message |
    
Keiths121
Junior Member
Username: Keiths121
Post Number: 19
Registered: 8-2009
| | Posted on Sunday, September 27, 2009 - 11:09 pm: | 
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I'm getting interference on my radio from the router at intervals of about 300Khz. Its stronger on some freqs than others. If I unplug the router goes away. I've moved the router 4 times already and seems no matter where I move it am still getting the interference. Anyone know what I can do to fix this?
KF5CTE
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Tech237
Moderator
Username: Tech237
Post Number: 1229
Registered: 4-2004
| | Posted on Monday, September 28, 2009 - 10:42 am: |
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The problem is most likely the power supply. Try filtering all the leads (ferrite chokes) that go to or from the router.
The frequency you mentioned leads me to suspect that it is using a switch mode style of power supply, and these are known (in cheap versions at least) to generate noise like you would not believe.
Simon
Tech237
N7AUS
.
I thought he said, "there was no rust for the wicked, and I own an MGB"
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Keiths121
Junior Member
Username: Keiths121
Post Number: 20
Registered: 8-2009
| | Posted on Monday, September 28, 2009 - 8:22 pm: |
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I was messing around with this earlier today and found out if I unplug the ethernet cable but the router is still plugged in the noise will stop. Tried switching the ethernet cables but with any cable the noise is there. Do you think a shielded ethernet cable will help any?
KF5CTE
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Bruce
Senior Member
Username: Bruce
Post Number: 5189
Registered: 9-2003
| | Posted on Tuesday, September 29, 2009 - 6:30 am: |
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place a wire over the cable by slowly twisting it and ground both ends one to the computer one to the router box.
IF a shield wire is going to help this should show some improvement. |
Train_man
Member
Username: Train_man
Post Number: 69
Registered: 10-2007
| | Posted on Tuesday, September 29, 2009 - 2:02 pm: |
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"I was messing around with this earlier today and found out if I unplug the Ethernet cable but the router is still plugged in the noise will stop."
Unplugged the cable from what? |
Keiths121
Junior Member
Username: Keiths121
Post Number: 21
Registered: 8-2009
| | Posted on Tuesday, September 29, 2009 - 5:45 pm: |
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There is an ethernet cable that runs from the cable modem to the router. I unplugged one end from the router.
KF5CTE
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Keiths121
Junior Member
Username: Keiths121
Post Number: 22
Registered: 8-2009
| | Posted on Tuesday, September 29, 2009 - 5:51 pm: |
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bruce, that is not feasible. The router and the computer are in seperate rooms and have a wireless connection at 2.4GHZ. The cable coax runs from the wall to the cable modem. An ethernet cable connects the cable modem to the router. Than it goes to two seperate computers via wireless connection.
KF5CTE
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Train_man
Member
Username: Train_man
Post Number: 70
Registered: 10-2007
| | Posted on Wednesday, September 30, 2009 - 2:08 am: |
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What brand/model is the router?
I have a Linksys 2.4ghz Wireless G router not more than 2'
away from my radio and I have no noise what so ever. |
Keiths121
Junior Member
Username: Keiths121
Post Number: 23
Registered: 8-2009
| | Posted on Wednesday, September 30, 2009 - 7:28 am: |
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Train_man, Thats excellent you have no noise on your radio from your router. However I still do. I Did a search on google about this problem and it seems a lot of operators are having this issue with linksys routers. I think I'm just going to buy another brand of router.
KF5CTE
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Keiths121
Junior Member
Username: Keiths121
Post Number: 24
Registered: 8-2009
| | Posted on Wednesday, September 30, 2009 - 7:17 am: |
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Same router. Linksys wireless G.
KF5CTE
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Ironmike
New member
Username: Ironmike
Post Number: 9
Registered: 6-2007
| | Posted on Thursday, October 15, 2009 - 10:14 am: |
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How about ferrite rf chokes on each end of the cat5? |
Airplane1
Senior Member
Username: Airplane1
Post Number: 1349
Registered: 5-2004
| | Posted on Thursday, October 15, 2009 - 10:52 am: |
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I have a netgear router and have no problems. |
