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Re: Phantom Power. Question from The Ghost Who Walks :-)

Subject: Re: Phantom Power. Question from The Ghost Who Walks :-)
From: "vickipowys" vpowys
Date: Sat Jan 2, 2010 9:49 pm ((PST))

I am sure some more knowledgeable person will chime in soon, but
meanwhile can I say that the LS-10 ( I have one) does not supply
Phantom Power, but it does supply Plug-in Power which is altogether
different.  So you will still need to use the 1.5 V battery in your
mic.  The LS-10 will accept a mic that is being Phantom Powered by an
external device such as a pre-amp, but why have a lot of add-ons that
you really don't need?

The 1.5 V battery should last a whole day or more if it is anything
like the Sennheiser ME series of mics which also take a single AA

I love the idea of recording birds in your backyard in Alice
Springs!  Hope you will post a few selections to the naturerecordists
group pages.  Then I will be able to travel in my mind back to the
Alice :-)



On 03/01/2010, at 4:31 PM, greg.winterflood wrote:

> I've recently acquired an Olympus LS-10 Linear PCM Recorder. I used
> to use a Marantz PMD 222 single channel tape recorder and an Audio-
> Technica AT815b shotgun mike. I've noticed talk about Phantom Power
> on the list, but don't quite understand it. I have checked the
> specifications of my mike. It takes Phantom Power. I've opened the
> mike and found that after ~6 years of dis-use the leak proof 1.5V
> battery in the mike base was intact. Phew!
> I am interested in obtaining advice on using the AT815b as a single
> channel [the LS-10 Instruction Book says: Left Channel]input into
> the LS-10 using Phantom Power. The Output Connector of the mike is
> a 3-pin XLRM. I have soldering skills.
> My reason for asking is: Will I see a significant difference in
> recording bird calls with the use of Phantom Power over and above
> using an AA battery in the mike itself? The mike 'specs' say that
> Phantom Power gives a Dynamic Range of 106dB, 1kHz at Max SPL,
> whereas the battery gives a Dynamic Range of 91dB.
> I am not sure of the significance of this difference, having always
> been confused by logarithims and dB!
> My main interest is in recording backyard bird calls. Birds often
> alight in several large eucalypt trees around my house and my idea
> is to point the shotgun mike at a single tree for a prolonged period.
> My Fluke multimeter tells me I have 47.5V DC coming from the
> telephone wall socket. Apart from inverting that and sending it
> back to the grid at a profit, any ideas?
> Cheers
> Greg
> Alice Springs
> ------------------------------------
> "While a picture is worth a thousand words, a
> sound is worth a thousand pictures." R. Murray Schafer via Bernie
> Krause
> Yahoo! Groups Links

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