| This
simple but
efficient Echo
Link interface
measures
9cm x 6cm
and is
designed
on Double
Sided PTH
Board.
Provides
Full
Isolation
between
Rig &
Computer
by using
two audio
transformers
& two
Opto
Couplers.
May be
powered
from DTR
Line by
running a
script on
your PC or
by
supplying
external
12V DC.
This
interface
may be
made
“Self-Powered”
if you run
a script
called
“DTR
on/off”.
Since DTR
is not
used, it
may power
the Opto
coupler
transistors.
However,
interface
may be
powered by
external
12V to get
the same
performance.
Rig
ground is
100%
isolated
from PC
ground
with
facility
to
decouple
by 0.1uf
capacitors
(marked
C/L-X) or
Inductors
to remove
hum or
noise, if
required.
In fact, this is nothing but a Sound Card
Interface with an addition of "COR" isolation circuit.
With
this, I
hope to
see more
amateurs
joining
this
exciting
digital
mode.
|
DTR
Powered
Echo Link
Interface
-
"Tiny
Echo"
button next to the item you wish to buy. A new Paypal
Secure web page will open with your item & price details.
Press "Continue shopping" to return to this page or
"Proceed to checkout" for payments.
"
button to see what all items you have. You may change quantity
if required & proceed to "Check-out".
