Tokend Posted October 22, 2006 Report Share Posted October 22, 2006 Just got my new MZ-RH1!! It's my first Hi-MD, and I am SO looking forward not only to playing and recording, but also uploading all my old MD recordings to computer. What an utterly cool piece of technology. I had bought 10 Hi-MD discs a few months ago, when they were $4 apiece from Musician's Friend. So, with 40 bucks invested, I HAD to get the MZ-RH1. As I type, I'm listening to Flaco Jimenez from an outdoor concert a while back. Crowd noise, not so much left-right separation, and many other sound recording boo-boos, but it sounds completely fantastic. The only knock so far, if you can call it that, is, because it's so small and light, the RH1 doesn't have a high pounds-per-dollar value. :-) One question, though. The unit came with a couple of snap-closable ferrite cores, with instructions to wrap them around mic and line-in cords. The supplied USB charger cord and remote cord already had their own cores attached. What do these things do? What happens if I record without them? Or, what happens if I use them when I'm not supposed to? Thanks, and wheee!!! Go, Flaco. Quote Link to comment Share on other sites More sharing options...
A440 Posted October 23, 2006 Report Share Posted October 23, 2006 You might as well take off the cores. People here have tested recording, playing, etc., with and without them and they make no difference.You may get a hum in your recordings if you record using AC power instead of the battery. However, the ferrite core on the charger cable, on a microphone cable, etc., will not change that. Do your recordings on battery power if at all possible. As far as I can tell, they only include the ferrite to give you more exercise when you carry the equipment. Viva la musica norteña. Quote Link to comment Share on other sites More sharing options...
MDX-400 Posted October 23, 2006 Report Share Posted October 23, 2006 Personally I would not take off the cores. Wasn't there just recently a thread about the core on the remote cord of the MC40ELK remote; which, when removed, created a hum added to recording? Quote Link to comment Share on other sites More sharing options...
A440 Posted October 23, 2006 Report Share Posted October 23, 2006 They make no difference with noise from the RM-MC40ELK remote, which is not bundled with the RH1 anyway. Static from a remote occurs when turning the backlight on and off, and the ferrite does not affect that--it's a grounding problem. They ferrite clamps are supposed to cut down on radio frequency interference generated by the MD. If you are worried about interfering with crucial radio communications, feel free to leave them on. http://forums.minidisc.org/index.php?showtopic=8662 Quote Link to comment Share on other sites More sharing options...
Stuge Posted October 23, 2006 Report Share Posted October 23, 2006 (edited) Ferrite cores are used around cables for Electromagnetic Interference (EMI)suppression. They reduce the extraneous currents in the cables produced bylarge, nearby Radio Frequency fields such as AM radio transmitters, TVtransmitters, amateur radios, shipboard radios, etc. Edited October 23, 2006 by stuge Quote Link to comment Share on other sites More sharing options...
Tokend Posted October 23, 2006 Author Report Share Posted October 23, 2006 Ferrite cores are used around cables for Electromagnetic Interference (EMI)suppression. They reduce the extraneous currents in the cables produced bylarge, nearby Radio Frequency fields such as AM radio transmitters, TVtransmitters, amateur radios, shipboard radios, etc.Thanks to all for this information. I have no reason not to use these cores, but was just curious about what purpose they serve. And, Happy Diwali to you too, Stuge. Quote Link to comment Share on other sites More sharing options...
BobS Posted October 23, 2006 Report Share Posted October 23, 2006 Their purpose is to reduce the amount of RFI (radio-frequency interference) put out by the unit. There are a lot of high frequency sources in an MD and the leads (as the AC adaptor, remote cord etc) act as antenna radiating these signals. The FCC sets limits as to these emissions and one of the ways to meet the regulations is with these ferrites. I doubt you will notice any difference in recording or playback sound without them. Quote Link to comment Share on other sites More sharing options...
Stuge Posted October 23, 2006 Report Share Posted October 23, 2006 And, Happy Diwali to you too, Stuge.Happy Diwali to you as well Quote Link to comment Share on other sites More sharing options...
Sparda Posted October 25, 2006 Report Share Posted October 25, 2006 So it supresses out going interference and not in going interference? Because i wouldn't mind my RH1 showing its presence . Quote Link to comment Share on other sites More sharing options...
sharpsony Posted November 21, 2006 Report Share Posted November 21, 2006 So it supresses out going interference and not in going interference? Because i wouldn't mind my RH1 showing its presence .The ferrite cores primarily suppress outgoing interference which may, for example, impair reception of FM or AM broadcasts. So it might be useful to use the cores while recording radio shows off simple (portable) radio units with internal antennas. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.