Introduction
1705A Spectrum Monitor 1-11
NEWYORK CITY CHICAGO
LOSANGELES
HONOLULU
ANCHORAGE
GREENWICH
ENGLAND
NORTH
POLE
PRIMEMERIDIAN
000°
INTERNATIONALDATELINE
180°
45°W
45°E
90°E
135°E
135°W
SPACENET2
69°
RCAK2
81°
RCAK1
85°
SBS3
97°
GSTARA2
103°GSTARA1
105°ANIKB
109°
ANIKC2
112.5°
SPACENET1
120°
MORELOS1
113.5°
MORELOS2
116.5°
SBS5
122°
ASC1
128°
ARCTIC
CIRCLE
Figure1 -4: Sample longitudinalmap of t he Ku-Band satellites of most interest to
newsvehicle earth stat ionson t he North American continent and Hawaii
Using the 1705A for Satellite Communication
The 1705A has two separate inputs, one, the L--BandInput, is specifically
designed to work with LNB down converters,which have an output signal range
of 0.95 to 1.80 GHz. This provides a meansof looking at the signals from either
Ku or C--Bandsatellites. The second input is identified as 70 MHz andaccepts
signals from 45 to 100 MHz. Thissecond input is primarily designed to work
with the IF frequencyof an exciter, but can also be used to look at signals in the
low VHF television band and theF M broadcastband up to 100 MHz.