Aircraft 118 - 136 MHz AM Band

©Brooke Clarke, N6GCE, 2002

Background

This plot was made at Ukiah, CA (39:11 N, 123:09 W) from 11 to 12 March 2002 by using an OE-254 Antenna and an Agilent 4395A in Spectrum Analyzer mode with DISPLAY/DATA HOLD set at MAX.  In this mode the display remembers the maximum points.  With Display Data Hold off a typical trace would show no signals and after many sweeps you might see one trace that would disapear on the next sweep.  Note the sweep time in the lower right corner is 14.17 seconds.

Frequency Table

By manualls using the submarkers in frequency order the signals can be identified as:
 
Freq MHz
Pwr  dBm
119.9575
-66.237
120.745
-68.093
122.995
-59.373
125.245
-74.729
125.8525
-63.194
127.810
-51.836
128.350
-75.455
129.4075
-72.354
131.9275
-69.441
129.4075
-72.354
129.4975
-76.216
130.0375
-56.150
130.4875
-80.551
131.140
-67.687
131.2075
-67.540
131.545
-67.943
134.155
-79.000
134.9875
-76.890
135.1675
-70.965

Note the frequencies shown above may be low by 10 kHz +/- because to get 5 kHz precision the span needs to be 4 MHz or less.
This page needs to be remeasured.

Other Spectrum Plots

0 to 200 kHz

136 to 138 MHz
150 to 154 MHz
153 to 157 MHz 


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This is the  time this page has been accessed since since 12 March 2001.