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3649Re: Active loop antenna

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  • mwmwmfilms
    Jun 14, 2007
      How can I get a schematic for the Degen DE-31 active antenna? Anyone
      nice enough to email me a copy? mwmwmfilms@...

      Thanks
      Chris


      --- In loopantennas@yahoogroups.com, "Ralph Lane" <rlane7301@...> wrote:
      >
      > Hi, add me to the list for the Loop antenna schematic.
      >
      > Ralph
      >
      > ----- Original Message -----
      > From: "Fraser" <fraser.castle@...>
      > To: <loopantennas@yahoogroups.com>
      > Sent: Friday, March 02, 2007 11:55 AM
      > Subject: [loopantennas] Re: Active loop antenna
      >
      >
      > > Rob,
      > >
      > > Email me and I'll add you to the list of email recipients for the
      > > schematic.
      > >
      > > Fraser
      > >
      > > --- In loopantennas@yahoogroups.com, "Rob Moore" <rmoore5@> wrote:
      > >>
      > >> Hi,
      > >>
      > >> I'd like a copy of the WL500 schematic! It will save me a lot of
      > >> trouble tracing through the wiring and PC board.
      > >>
      > >> Regards,
      > >> Rob
      > >>
      > >>
      > >> --- In loopantennas@yahoogroups.com, "Fraser" <fraser.castle@>
      > > wrote:
      > >> >
      > >> > Hi Franco,
      > >> >
      > >> > The AOR WL500 uses a MAR6 MMIC from Minicircuits as it's RF
      > > amplifier.
      > >> >
      > >> > The WL500 is varacap diode tuned and uses "bulk inductance" in
      > > the form
      > >> > of two switched fixed inductors to bring the 2 turn loop to
      > > resonance
      > >> > at the required frequency.
      > >> >
      > >> > I was VERY surprised to see the MAR6 attched directlt to the
      > > output of
      > >> > the tuned loop as it is a 50 ohm inout and output device. I would
      > > never
      > >> > have used such a device in a tuned loop design myself. AOR made
      > > it work
      > >> > though and the WL500 was apparently a pretty decent tuned HF
      > > Loop. It
      > >> > is now discontinued.
      > >> >
      > >> > I do have the schematic of the AOR WL500 if you need it but the
      > > two
      > >> > fixed loop inductors are not detailed either in type or
      > > inductance
      > >> > value so some experimentation may be required.
      > >> >
      > >> > You could do worse tan buy a Degen DE31MS as they are so cheap
      > > from
      > >> > China via eB*y. You could then experiment with that design to
      > > improve
      > >> > it if required.
      > >> >
      > >> > PM me you email address if you want the schematic.
      > >> >
      > >> > Regards
      > >> >
      > >> > Fraser
      > >> >
      > >> > --- In loopantennas@yahoogroups.com, "exnci2000" <awfhgm@> wrote:
      > >> > >
      > >> > > Hi,
      > >> > > On minicircuits.com catalog,there are some interesting
      > > mololithic Rf
      > >> > > amplifier ERA/MAR series offering good IP3.I would like to know
      > > if you
      > >> > > have some schematich diagram to homebrew an active broadband
      > > loop
      > >> > > antenna from 100 Khz to 30 Mhz !!
      > >> > > Best regards
      > >> > > Franco
      > >> > > Italy.-
      > >> > >
      > >> >
      > >>
      > >
      > >
      > >
      > >
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