Spectrum Analyzer Menus
2715 User Manual
6–11
300
Twin Lead
Folded Cut Dipole
300
-To-75
TV Balun
Homemade Twin Lead Antenna
Non-Metallic
Mounting Board
(Masonite)
5600
f(MHz)
inches
1.425
f(MHz)
meters
Figure 6–4: Equipment Setup for Field Strength Measurements
With the 2715, you enter the attenuation using the EXTERNAL ATTEN/AMPL
feature from the INPUT menu and the antenna factor, measurement distance, and
reference distance using the DBUV/M SETUP under the REFERENCE LEVEL
UNITS of the INPUT menu. Note that many commercial antenna suppliers
include the balun losses in the antenna factor. For the most accurate results, use
an antenna calibrated at the specified reference distance and perform the
measurement at that distance. If possible, measure the return loss of the antenna
to make certain it is properly tuned to the desired frequency. See Tektronix
application note 26W-7037-1, Spectrum Analyzer Fundamentals, concerning
return loss measurements.
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