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@..., "Ralph Lane" <rlane7301@...> wrote:
Hi, add me to the list for the Loop antenna schematic.
Ralph
----- Original Message -----
From: "Fraser" <fraser.castle@...>
To: <loopantennas@...>
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@..., "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@..., "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@..., "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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