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#1
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RF interference from a hdd
I have a desktop setup next to my radio tuned to a local FM station.
Normally the desktop has an IDE hdd setup as primary master. I have used a half dozen different IDE hdd's in this desktop without noticing radio interference. Yesterday I cloned the IDE to a Maxtor 250GB SATA hdd (XP Pro). Today I have radio interference when the hdd reads (on bootup). Is this a cable issue, or a connection issue? |
#2
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RF interference from a hdd
hdtv? wrote:
I have a desktop setup next to my radio tuned to a local FM station. Normally the desktop has an IDE hdd setup as primary master. I have used a half dozen different IDE hdd's in this desktop without noticing radio interference. Yesterday I cloned the IDE to a Maxtor 250GB SATA hdd (XP Pro). Today I have radio interference when the hdd reads (on bootup). Is this a cable issue, or a connection issue? Just the different way the drive connects to the system. SATA uses a rather higher speed serial connection, that's what the S is there for. |
#3
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RF interference from a hdd
Previously hdtv? wrote:
I have a desktop setup next to my radio tuned to a local FM station. Normally the desktop has an IDE hdd setup as primary master. I have used a half dozen different IDE hdd's in this desktop without noticing radio interference. Yesterday I cloned the IDE to a Maxtor 250GB SATA hdd (XP Pro). Today I have radio interference when the hdd reads (on bootup). Is this a cable issue, or a connection issue? Open case? Other than that it may be a flaky power cable connector. Arno |
#4
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RF interference from a hdd
"Arno Wagner" wrote in message ... Previously hdtv? wrote: I have a desktop setup next to my radio tuned to a local FM station. Normally the desktop has an IDE hdd setup as primary master. I have used a half dozen different IDE hdd's in this desktop without noticing radio interference. Yesterday I cloned the IDE to a Maxtor 250GB SATA hdd (XP Pro). Today I have radio interference when the hdd reads (on bootup). Is this a cable issue, or a connection issue? Open case? Other than that it may be a flaky power cable connector. Arno Yea, my main desktop is always open case for ease of hdd swaps. I know the negatives re cooling/dust and I have various disk caddies here as well. |
#5
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RF interference from a hdd
Previously hdtv? wrote:
"Arno Wagner" wrote in message ... Previously hdtv? wrote: I have a desktop setup next to my radio tuned to a local FM station. Normally the desktop has an IDE hdd setup as primary master. I have used a half dozen different IDE hdd's in this desktop without noticing radio interference. Yesterday I cloned the IDE to a Maxtor 250GB SATA hdd (XP Pro). Today I have radio interference when the hdd reads (on bootup). Is this a cable issue, or a connection issue? Open case? Other than that it may be a flaky power cable connector. Arno Yea, my main desktop is always open case for ease of hdd swaps. I know the negatives re cooling/dust and I have various disk caddies here as well. Ok, wit an open case it may simple be a cable that is in a different position and now radiates towards your A/V equipment. The primary rrason for metal cases is RF shielding ... Arno |
#6
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RF interference from a hdd
Maybe trying a ferrite clamp or toroid on all the leads might help,
or get an old ferrite rod antenna from a duff AM transistor radio strip the coils off and wrap a few turns of the leads from the drive round it, this will act as a rf choke hopefully stopping the leads acting as an antenna. This ought to prevent radiation from the leads, direct radiation from the unit will require screening the unit... VHF FM only requires a few inches of wire to make an effective antenna. Ferrite clamps tend to be on the expensive side compared to toroidal core's obviously they have to be big enough to allow the wire to pass through, even one just slipped over the wire 'could' help. The only other alternative is to move the radio further away. Davy |
#7
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RF interference from a hdd
"Arno Wagner" wrote in message ... Previously hdtv? wrote: "Arno Wagner" wrote in message ... Previously hdtv? wrote: I have a desktop setup next to my radio tuned to a local FM station. Normally the desktop has an IDE hdd setup as primary master. I have used a half dozen different IDE hdd's in this desktop without noticing radio interference. Yesterday I cloned the IDE to a Maxtor 250GB SATA hdd (XP Pro). Today I have radio interference when the hdd reads (on bootup). Is this a cable issue, or a connection issue? Open case? Other than that it may be a flaky power cable connector. Arno Yea, my main desktop is always open case for ease of hdd swaps. I know the negatives re cooling/dust and I have various disk caddies here as well. Ok, wit an open case it may simple be a cable that is in a different position and now radiates towards your A/V equipment. The primary rrason for metal cases is RF shielding ... Arno As SATA is serial I/F, data clock is much higher than PATA I/F, hence different RF effect. Closed case will reduce. Mike. |
#8
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RF interference from a hdd
Previously Michael Hawes wrote:
"Arno Wagner" wrote in message ... Previously hdtv? wrote: "Arno Wagner" wrote in message ... Previously hdtv? wrote: I have a desktop setup next to my radio tuned to a local FM station. Normally the desktop has an IDE hdd setup as primary master. I have used a half dozen different IDE hdd's in this desktop without noticing radio interference. Yesterday I cloned the IDE to a Maxtor 250GB SATA hdd (XP Pro). Today I have radio interference when the hdd reads (on bootup). Is this a cable issue, or a connection issue? Open case? Other than that it may be a flaky power cable connector. Arno Yea, my main desktop is always open case for ease of hdd swaps. I know the negatives re cooling/dust and I have various disk caddies here as well. Ok, wit an open case it may simple be a cable that is in a different position and now radiates towards your A/V equipment. The primary rrason for metal cases is RF shielding ... Arno As SATA is serial I/F, data clock is much higher than PATA I/F, hence different RF effect. Closed case will reduce. Mike. The primary advantage of serial ATA is that it uses twisted pair. Arno |
#9
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RF interference from a hdd
"Arno Wagner" wrote in message
Previously hdtv? wrote: "Arno Wagner" wrote in message ... Previously hdtv? wrote: I have a desktop setup next to my radio tuned to a local FM station. Normally the desktop has an IDE hdd setup as primary master. I have used a half dozen different IDE hdd's in this desktop without noticing radio interference. Yesterday I cloned the IDE to a Maxtor 250GB SATA hdd (XP Pro). Today I have radio interference when the hdd reads (on bootup). Is this a cable issue, or a connection issue? Open case? Other than that it may be a flaky power cable connector. Arno Yea, my main desktop is always open case for ease of hdd swaps. I know the negatives re cooling/dust and I have various disk caddies here as well. Ok, wit an open case it may simple be a cable that is in a different position and now radiates towards your A/V equipment. The primary rrason for metal cases is RF shielding ... And obviously you only need that at bootup. After that you can just take the cover off again. Arno |
#10
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RF interference from a hdd
I had the same problem and most of the RF interference stopped when I
plugged the hard drive in to another connection to the Power supply. I plugged in a fan and DVD drive to the same cable so that no unused pluggs were on the cable plugged in to the SATA drive. |
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