Of the 25 frequencies that are now in your scanner, some are *outside*
of the normal scanning range of the unit!  We're going to use these to
access our "new" frequency ranges.
_Using these frequencies_
1.  Turn the squelch *all* the way off, so you hear noise.  Turn the
    volume most or all of the way down.
2.  Press MANUAL, 14, MANUAL.  This should show 66.45 MHz.
3.  Repeatedly press the DOWN search key until you reach exactly 66.0
    MHz.  If you go past 66.0, you can't just search back up.  You'll
    have to go back to step 2.
4.  Press MONITOR, which puts 66.0 in one of the monitor memories.
5.  Press MANUAL, 91, MANUAL, which sets the scanner to channel 91.  I
    use bank 10 as my "hack" bank.  You can use whatever you want, but
    the directions are written in terms of what I'm doing.
6.  Press PROGRAM, MONITOR, ENTER, which puts 66.0 into channel 91.
7.  Repeat steps 2-6.  Start searching from 87.425 MHz in channel 16,
    this time going UP to 88.0 MHz.  Put the results in channel 92.
8.  Repeat steps 2-6.  Start searching from 888.96 MHz in channel 23,
    going DOWN to 868.95 MHz.  Put the results in Channel 93.
9.  Repeat steps 2-6.  Start searching from 888.96 MHz in channel 23,
    going UP to 896.10 MHz.  Put the results in Channel 94.
10. Turn the volume and the squelch controls back to normal settings.
    Re-enter all your old frequencies and settings, taking care to
    avoid disturbing the four in channels 91-94.
Now uncramp your fingers and check your work.  You should find the
frequencies 66, 88, 869.95 and 896.10 MHz in channels 91-94 (or
wherever you wanted to put them).  These four frequencies have the
distinction of being the lowest and highest frequencies in our two
newly available scanning ranges.
All this is unfortunately necessary, as even with the hardware mod
outlined above, you still can't enter frequencies in these ranges
directly.  Nor can you perform a limit search in them.
You can, however, perform a direct search in these ranges.  Simply
manually select one of your four bracketting frequencies, then hit the
UP or DOWN search button.  If you search past the end of your range,
you can't just reverse, so you'll have to go back and start again.  If
you find something interesting, you can put it in a monitor memory and
then transfer it to whatever channel you want.  Once in a regular
channel, it can be scanned like any other.
If you lose a channel you've stored from one of these ranges, say by
power failure or accidentally programming a new frequency, you can
restore it by opening up the squelch and direct searching UP or DOWN
from a nearby frequency, then move it to monitor and then back to the
desired channel.  If you've used a scanner in the past that lacks
direct entry, you're already familiar with this channel entry method.
_In conclusion_
If you choose to attempt the modification outlined above, you do so at
your own risk.  If you're at all uncomfortable with the thought of
mucking around with the internals of your scanner, DON'T DO IT!
This mod would not have been possible without tons of help in the form
of earlier published mods, general technical assistance, and plain old
hand-holding.  *Some* of the people I'd like to thank are as follows:
Bill Cheek (1:202/731)
John Thompson (1:369/55)
dbarton@moe.cc.emory.edu
K. Bryan Painter
Samantha Hamby
Happy Hacking!
Troy
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