CHAPTER 24
Operation
Connect the other end of your transmission
line to a good quality SWR meter and then to
your radio. While using low power (less than
200 watts output), check the VSWR across
each band from 14.0 to 29.7 MHz. Record this
information for future reference. See Table 1.
Check the VSWR periodically to ensure
proper operation.
The front-to-back ratio may be checked by
using a steady carrier transmitted by a local
station (at least a 1/2 mile away). The front-to-
back ratio may be affected by the proximity of
metallic structures or guy wires less than 10
feet below the antenna.
This completes your installation of the
TH7DX. Happy DX'ing!
VSWR
Type of VSWR
Date Date Frequency VSWR
VSWR
Date Date VSWR VSWR
14.00
14.10
14.20
14.30
14.35
21.00
21.10
21.20
21.30
21.40
21.45
28.00
28.25
28.50
28.75
29.00
29.50
29.70
Table 1
