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World of Ham Radio 1997
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r7000_06.doc
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1997-02-01
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43 lines
R7000.6
TV INTERFACE FOR R7000
John Biro
I just got the video interface for the R7000, and to my
surprise it is not an internal option. It bolts to the
side of the radio (right side were the rubber feet use
to mount). It is about 1 inch wide, and the same
height and length as the R7000, and in a matching
cabinet.
TV video is taken off the 10.7 MHz IF output jack, this
presents a problem if you are using it for a Band
Scope. It also "steals" the power from the IF output
(the center pin of the IF out carries 12VDC so be care-
ful not to short it out).
The interface provides RCA type jacks for both Video
out and Audio out. The Video is standard levels and
the Audio is low level output for input to a typical
audio amp (it can not drive a speaker directly). I am
not sure why the audio output is there as you can moni-
tor the audio on the R7000, looking at the circuit they
do have a sideband filter circuit so I would assume the
audio is cleaner but I have not tried it and do not
have any problem with the R7000 audio receiving WBFM
from the TV stations.
Results: The TV-R7000 works OK, but I am just disap-
pointed in the fact that it does not mount internally
in the R7000. This could also help in its high price
tag of $119. I had a Yaesu FRG9600 with video option
(only about $30), and it worked about the same. The
picture quality is good, and it is very stable. My
antenna is vertically polarized, so I am working cros-
sed polarized for TV stations but still get good
results, strangely better on UHF then VHF freq. In
fact, I get UHF on this set up better then my late
model TV upstairs.
CONTINUED IN R7000.7