Pro 2004 Modifications
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Pro-2004 modifications
Page 1 of 5
Modify Realistic PROPRO-2004 for Cellular Coverage.
The following document explains how to modify a Radio Shack Realistic Pro-2004 scanner to receive the 800 mhz cellular telephone frequencies which were disabled prior to the unit being sold. This modification is specifically for the Pro-2004. There are other mods available for other scanners, but this document does not cover those. This mod is simpler than the one done by Rep Tauzin. Tauzin had to use a soldering iron to modify the scanner he used to demonstrate the ease and simplicity involved. This mod does not need a soldering iron, unless you desire to do one or both of the additional mods not associated with receiving cellular frequencies. If a U.S. Representative can do it, so can you. Tools required:
Phillips screwdriver Wire cutters
Additional modifications included for those handy with a soldering iron:
Increase memory from 300 channels to 400 channels
mhtml:file://E:\Radio and scanner\Scanner\Pro-2004\Pro-2004 modificat... 11/5/2009
Pro-2004 modifications
Page 2 of 5
Increase scan rate from 16 to 20 channels per second
CAVEAT: If you do such modification, you do so at your own risk. It is currently rumored that the FCC is of the opinion that any modification done to a scanner in order to receive cellular communications is illegal. As far as I know, the PRO-2004 was manufactured before the law requiring that scanners not have the capability to be readilly modified, and it is my opinion (I am NOT a lawyer) that such a law which rumors claim the FCC is citing, is not retroactively applicable to scanners manufactured before the law cited. You assume all risk, legal and technical, if you decide to undertake this modification. While it might be illegal to modify a scanner to receive cellular communications, certainly it can't be illegal to have, obtain or distribute the information detailing how such a modification can be done. 1. Remove the four screws from the back of the radio, and slide the cover off of the scanner chasis.
2. Turn the scanner upside down. In the center of the circuit board, you will find a shielded enclosure. Remove the cover of the enclosure and rotate the scanner so the front panel is towards your body.
mhtml:file://E:\Radio and scanner\Scanner\Pro-2004\Pro-2004 modificat... 11/5/2009
Pro-2004 modifications
Page 3 of 5
3, On the right side inside the enclosure, you will see the CPU for the scanner. On the left side you will see several diodes and resistors, and blank pads for diodes.
4. Near the top of the column of diodes, you will find one labeled as D513. You may clip one lead of D513 and separate the leads so they do not touch. This restores cellular coverage to the Pro-2004. 4a. NOTE: If you plan to attempt the 400 channel or speed-up mod, you may want to desolder the diode instead for use in the additional mods. If you do not intend to do either of the additional mods, skip to step 7. If you need to get to the underside of the CPU circuit board, use extreme care so as to not damage any wires or circuits.
mhtml:file://E:\Radio and scanner\Scanner\Pro-2004\Pro-2004 modificat... 11/5/2009
Pro-2004 modifications
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5. 400 CHANNEL MOD: Count from diode placement pad D513 uo to D510. (The D510 pad may be unlabeled). By installing a diode in position D510, in the same polarity as the other diodes in the stack, you will increase the number of memory channels from 300 to 400. 6. 20 CHANNELS PER SECOND MOD: D514 is just below D513, the diode you clipped to gain cellular coverage. By installing a diode in this position, in the same polarity as the other diodes in the stack, you will increase your scan speed from 16 CPS to 20 CPS. (This might not be preferable if you scan a lot of weak signals, as the speed could cause them to be skipped.) 7. Before replacing the cover on the shielded enclosure, make sure that you have not left any wire or solder droppings within, which could cause shorts. 8. Replace the cover on the shielded enclosure, making sure all the retaining tabs engage. Slide the scanner chassis back into the case and replace the four screws on the back. That's it.
NOTE: With the 400 channel mod, you now have 40 channels per bank rather than 30, so the small bank numbers on the keypad will no longer be accurate. Should you have the desire to download this entire page, pictures and all... s'pose you are concerned that the US Government might desire to censor the content of this page, then you can download the packaged file right HERE The author's home page
mhtml:file://E:\Radio and scanner\Scanner\Pro-2004\Pro-2004 modificat... 11/5/2009
Pro-2004 modifications
Page 5 of 5
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mhtml:file://E:\Radio and scanner\Scanner\Pro-2004\Pro-2004 modificat... 11/5/2009
Page 1 of 5
Modify Realistic PROPRO-2004 for Cellular Coverage.
The following document explains how to modify a Radio Shack Realistic Pro-2004 scanner to receive the 800 mhz cellular telephone frequencies which were disabled prior to the unit being sold. This modification is specifically for the Pro-2004. There are other mods available for other scanners, but this document does not cover those. This mod is simpler than the one done by Rep Tauzin. Tauzin had to use a soldering iron to modify the scanner he used to demonstrate the ease and simplicity involved. This mod does not need a soldering iron, unless you desire to do one or both of the additional mods not associated with receiving cellular frequencies. If a U.S. Representative can do it, so can you. Tools required:
Phillips screwdriver Wire cutters
Additional modifications included for those handy with a soldering iron:
Increase memory from 300 channels to 400 channels
mhtml:file://E:\Radio and scanner\Scanner\Pro-2004\Pro-2004 modificat... 11/5/2009
Pro-2004 modifications
Page 2 of 5
Increase scan rate from 16 to 20 channels per second
CAVEAT: If you do such modification, you do so at your own risk. It is currently rumored that the FCC is of the opinion that any modification done to a scanner in order to receive cellular communications is illegal. As far as I know, the PRO-2004 was manufactured before the law requiring that scanners not have the capability to be readilly modified, and it is my opinion (I am NOT a lawyer) that such a law which rumors claim the FCC is citing, is not retroactively applicable to scanners manufactured before the law cited. You assume all risk, legal and technical, if you decide to undertake this modification. While it might be illegal to modify a scanner to receive cellular communications, certainly it can't be illegal to have, obtain or distribute the information detailing how such a modification can be done. 1. Remove the four screws from the back of the radio, and slide the cover off of the scanner chasis.
2. Turn the scanner upside down. In the center of the circuit board, you will find a shielded enclosure. Remove the cover of the enclosure and rotate the scanner so the front panel is towards your body.
mhtml:file://E:\Radio and scanner\Scanner\Pro-2004\Pro-2004 modificat... 11/5/2009
Pro-2004 modifications
Page 3 of 5
3, On the right side inside the enclosure, you will see the CPU for the scanner. On the left side you will see several diodes and resistors, and blank pads for diodes.
4. Near the top of the column of diodes, you will find one labeled as D513. You may clip one lead of D513 and separate the leads so they do not touch. This restores cellular coverage to the Pro-2004. 4a. NOTE: If you plan to attempt the 400 channel or speed-up mod, you may want to desolder the diode instead for use in the additional mods. If you do not intend to do either of the additional mods, skip to step 7. If you need to get to the underside of the CPU circuit board, use extreme care so as to not damage any wires or circuits.
mhtml:file://E:\Radio and scanner\Scanner\Pro-2004\Pro-2004 modificat... 11/5/2009
Pro-2004 modifications
Page 4 of 5
5. 400 CHANNEL MOD: Count from diode placement pad D513 uo to D510. (The D510 pad may be unlabeled). By installing a diode in position D510, in the same polarity as the other diodes in the stack, you will increase the number of memory channels from 300 to 400. 6. 20 CHANNELS PER SECOND MOD: D514 is just below D513, the diode you clipped to gain cellular coverage. By installing a diode in this position, in the same polarity as the other diodes in the stack, you will increase your scan speed from 16 CPS to 20 CPS. (This might not be preferable if you scan a lot of weak signals, as the speed could cause them to be skipped.) 7. Before replacing the cover on the shielded enclosure, make sure that you have not left any wire or solder droppings within, which could cause shorts. 8. Replace the cover on the shielded enclosure, making sure all the retaining tabs engage. Slide the scanner chassis back into the case and replace the four screws on the back. That's it.
NOTE: With the 400 channel mod, you now have 40 channels per bank rather than 30, so the small bank numbers on the keypad will no longer be accurate. Should you have the desire to download this entire page, pictures and all... s'pose you are concerned that the US Government might desire to censor the content of this page, then you can download the packaged file right HERE The author's home page
mhtml:file://E:\Radio and scanner\Scanner\Pro-2004\Pro-2004 modificat... 11/5/2009
Pro-2004 modifications
Page 5 of 5
BAIT anfo bomb nazi white paramilitary overthrow hacker modify nitrate diesel blast cap
mhtml:file://E:\Radio and scanner\Scanner\Pro-2004\Pro-2004 modificat... 11/5/2009
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