[Icom] IC-R8500 Questions ?????

Fri, 20 Jun 2003 16:24:19 -0700

Ted,

A quick update.  I am extremely pleased with the results of the 8500 and =
the
Tek 492 spectrum analyzer.  Your predictions are verified, and my =
interests
are 40 MHz and above so there is no problem with the limitations below =
30
MHz.  Thank you again for some very insightful learning !

Just thought you would like to know !

-Scott Schappert
Molecular Inversion Dynamics
Engineering Consultant Group, COMSEC
949.654.0702
=20

-----Original Message-----
From: [email protected] [mailto:[email protected]] On
Behalf Of Ted Marston
Sent: Saturday, June 14, 2003 12:47 PM
To: [email protected]
Subject: RE: [Icom] IC-R8500 Questions ?????

Scott:

Between 30 MHz and 2 GHz you will have a usable BW of 10 MHz (+/- 5
MHz), and it is very flat over 7 MHz (+/- 3.5 MHz).  Below 30 MHz the BW
is only usable over 20 - 40 KHz (not very useful).  A DC block using a
.01 - .02 uf capacitor will work fine.  Although it would be better (in
my opinion) to remove the DC feed choke in the R-8500 receiver for the
10.7 MHz IF output.

   Ted, Rochester, NY
=20

----Original Message-----
From: [email protected] [mailto:[email protected]] On
Behalf Of Scott Schappert
Sent: Saturday, June 14, 2003 2:50 PM
To: [email protected]
Subject: [Icom] IC-R8500 Questions ?????

I am in the process of acquiring a Tektronix spectrum analyzer and have
a
couple of questions for those who may have had similar experiences with
the
R8500.  I would like to interface the IF output to the spectrum
analyzer,
but apparently there is 9 VDC on this output for the TV option.  Could I
assume that a DC block would solve the 9 VDC issue, but then, does
anyone
know about bandwidth (assuming, again, limitations) or even if the IF
out is
usable for the application of a spectrum analyzer.  I would appreciate
any
comments or suggestions in this regard.  And, as always, a heap of
advance
thanks !=20

=20

-Scott

=20

=20

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Your Moderator: Dick Flanagan W6OLD, [email protected]
Icom Users Net: Sundays, 1700Z, 14.315 MHz
Icom FAQ: http://www.qsl.net/icom/