E.F. Johnson Company CONVENTIONAL VOTING RECEIVER, User Manual

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VHF RECEIVER
2-3
July 2000
Part No. 001-2000-720
2.2.3 EDIT
Figure 2-6 EDIT MENU
This menu is used to create new files and set or
change the CVR operating parameters. The filename
for the CVRs in this file is shown in the lower left cor-
ner of the screen.
Setup Parameters
This programs the Receiver parameters and
options of each CVR at a Site. The following para-
graphs explain the parameters that are set by this
screen (see Figure 2-7) and give a brief description of
each.
NOTE: The parameters are shown in the lower left of
the pop-up screen for reference.
Figure 2-7 SETUP PARAMETERS
Repeater Number
Each CVR is programmed with a repeater num-
ber from 1-30 for reference. Number selection can be
arbitrary as long as each CVR is assigned a different
number.
Receiver Frequency
Each CVR is programmed with the freuqency
that it is operating on.
VHF Frequency Step
Using the space bar, select either:
5000 Hz or 6250 Hz for allowable frequency spacing.
EXAMPLE 1:
A receive frequency of 163.055 MHz would have
a local oscillator (LO) frequency of
163.055 MHz + 52.95 MHz = 216.005 MHz.
Divide 216005000 by 5000 = 43201.00
Divide 216005000 by 6250 = 26088.80
Since 43201 is an integer, select 5000.
EXAMPLE 2:
A receive frequency of 163.0625 MHz would
have a local oscillator (LO) frequency of
163.0625 MHz + 52.95 MHz = 216.012500 MHz.
Divide 216012500 by 6250 = 34562.00.
Divide 216012500 by 5000 = 32612.50
Since 34562 is an integer, select 6250.
To eliminate the chance of incorrect synthesizer
settings arising from ambiguous frequencies, make
sure this setting is correct.
Select Repeater
Select the repeater number to be programmed or
edited from the pop-up menu (see Figure 2-8). Move
the cursor with the arrow keys to highlight the repeater
number and press Enter.
Figure 2-8 REPEATER LIST
Repeater List
default
Rptr 1
-------
-------
-------
Rptr 30