Concerning _wanted pro46 mod_, Jared Baker said to All in SCANRADIO:
 JB> Does anyone know of a mod for the Pro-46 handheld scanner?
I know of a few.  Deciding which will work is the hard part.  On the back of 
the scanner is a little white label that says something like "4A3". What does 
yours say?
 JB> I heard that it had a keyboard mod but what is it?
Turn off the scanner, hold down 2, 9, and L/Out, then turn the scanner on. 
The scanner should now have values entered in the first 25 channels (and scan 
them normally), with the remainder being clear (which means your old 
frequencies just got erased).
IF this happens, follow the procedure at the end of this message.  If not, 
you may have to open the case and fiddle with the hardware.  If it's an 
earlier model, you might be able to move a diode and fully restore the gap. A 
later model, and you might be able to clip a wire and re-enable the keyboard 
mod trick.  I've got both those mods here somewhere...
 JB> It will recieve some cellular now out of the box mostly 890.000-
 JB> 900.000 but has a gap from 868.000 to 890.000.
Actually, those aren't cellular signals, but rather cellular images. Keep in 
mind that listening to these are probably just as illegal as listening to the 
real thing. 
Excerpt from PRO46THC.MOD
/It is not legal to listen to other people's telephone conversations/
/with radio and/or scanner equipment.  This modification is provided/
/for information purposes only, not as an attempt to encourage people/
/to commit illegal acts.  No warranty is offered or implied./
Troy H. Cheek's PRO-46 Mod for 'unmodifiable' models, v0.1  08-14-96
This mod will allow certain PRO-46 variants to access the 66-88 and
869-896 MHz ranges in 5 and 30 kHz steps, respectively.
(much deleted)
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.
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