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The picture is a top view of the 651-S1 Receiver. The two white lines (click on the picture to enlarge) indicate two boards are missing from this unit. When purchasing this
unit the ideal is to purchase a unit with all
the options. This unit is missing the second filter option and the ISB (independent sideband) option. In addition the VLF converter is missing from the RF module (see next page). In the collectors market you will see a wide difference in price on this unit because of the options that may or may not be installed ($1000-2000 08/00).
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