Olson Technology OTD-3000-I - Manual (Page 5)

025-000390 REV B Page 5
A) Decide on the required frequency yyy.xx.
B) Temporarily drop the .xx part and compute the total switch value required by adding 39.0 to the
remaining number.
C) Set the DIP switches to equal the total required value.
D) Change the SW 2 setting if frequency ends with .00, .05, or .75. Factory setting is .25MHz.
E) Select the proper input tuner band and set the appropriate switch to activate this band.
EXAMPLE:
A) Example frequency of 76.25MHz is desired.
B) 76.25 - .25 = 76.0 + 39.0 = 115, the total switch value required.
C) The switch settings for a total of 115 would be: 1100 1110 00. Set the 1st 10 positions to this value
1 = Up, 0 = Down.
D) .25 is the default for SW 2 so it does not require changing.
E) 76.25MHz is in the 48-168MHz band, so set position 4 of the right switch down (on) to select this
band.
Figure 3 - SWITCHES SET FOR 76.25MHz
The first time you perform this procedure, it may help to practice with a frequency whose switch settings are
illustrated in one of the switch tables in this manual.
8) MISCELLANEOUS
The OTD-3000-I is equipped with a 0.25 slo-blo fuse. For safety, and to maintain proper performance of
the unit, please replace only with an equivalent fuse.