Need help with Magnum Dynalab MD 90
Maybe this is the place to ask this.
I have a Magnum Dynalab MD 90, using a Day Sequerra FM Urban Antenna. There are several stations the MD picks up but gets no sound on. Apparently the tuner can't pull in the signal well enough to matter. The stereo LED is on with these stations, but the signal is almost non-existent. Living in NY there is a lot of multipath to deal with. I'm across the street from Brooklyn Tech high school, which is probably another reason why reception is tricky. I wonder if MD's MD-205 Signal Sleuth will help, since it would amplify signals, or do I need to consider a new antenna or (gasp) tuner to pull in more stations in an urban environment? |
Have you tried a simple dipole?
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Charles.......Perhaps it is time to send the MD 90 to the factory for a total alignment. It will come back like new.
http://www.magnumdynalab.com/images/...md90-large.jpg Or, maybe it's time to let her go and replace it with the Mganum Dynalab MD 108 triode tuner. :thumbsup: http://www.magnumdynalab.com/images/...108t-large.jpg |
Thanks for the new thread.
I don't know where those "there but not there" stations are located or their formats. And there are some stations that don't come in clearly, suggesting (to me) antenna positioning or signal strength is an issue for them. In two cases, I used to get them better than I do now. While I don't think I'll lose sleep over this, I do wonder why it's occurring, and if there's a reasonable solution. Depending upon how curious I become and how badly I want to pursue that solution, troubleshooting is in order. Steps I can think of off the top of my head include checking the settings on the MD 90, then repositioning the antenna, replacing the antenna, trying an amplifier (MD's own Signal Sleuth), then upgrading or replacing the tuner; the McIntosh MR88 popped into my head, and now MD's own 105 as well (that 108 looks nice too). Outright replacement is a last resort, of course. |
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The other option, list it in the Marketplace and let some other lucky person have it to get the upgrades done and own a fine Magnum Dynalab tuner. |
^^^
Oh no! I'd pulled that post you quoted back to edit and ended up deleting it. I wanted to add that there's an upgrade to the MD 100 for $660. It offers: • MD 100 audio section • High grade polypropylene Solen capacitors in the audio path • Upgrade the RF section with low tolerance hand selected critical components • WBT/RCA connectors • Balanced outputs • Precision tuning assembly If I decide that I really want those phanotm stations (whatever they are) and I get nowhere with the antenna, I can either go for the Sleuth or the MD 100 upgrade. It's things like this that take me down the path to "hobbydom," if I'm not careful. Well, this and curiosity. But I lean toward the 100 upgrade in a circumstance like this, frankly. And as usual Dan, you offer good information. |
Charles.......That upgrade sounds like a bargain, too. You also mentiuoned the Magnum Dynalab MD205 Signal Sleuth. I have one that I am presently using with a McIntosh MR74 tuner. It improves the signal quality of at least eight stations that used to be fringe and objectionably noisy. The MD205 is worth it's price of $440.00.
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Here, therefore, is my plan. As before, I want to try repositioning the DS antenna, despite limited placement options. But depending upon those results, I will contact Magnum Dynalab and seek feedback on which option (MD205 or MD 100 conversion) offers the most bang. Or maybe I get both, even. And away I go . . . |
I heard from Magnum Dynalab today, and their preliminary assessment is I would do best to change out the antenna. They suggest their SR-100 for my particular circumstances. Or if I want, I could go for one of their internet tuners, and I could trade in my MD 90 toward that.
The antenna is only $35, so why not try that, I'm thinking, before going a more expensive route. Besides, its smaller profile would give the SR-100 more placement flexibility, even in my crowded apartment. |
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