Scanner Frequently Asked Questions
Section 3 - Racing & Conventional Scanners

RACING SCANNERS

General Questions

Product: Racing Scanners
Question: Do you have lists of racing frequencies?
Answer: We regret we do not have on-line lists of racing frequencies. However, you can find links to on-line lists by doing a web-search for the words RACING FREQUENCIES and the specific race. We are aware of the following sites which have scanner frequencies; however, please note that these internet sites are not affiliated with RadioShack Corporation and off-site information is neither created, maintained nor verified by RadioShack Corporation. Responsibility for the content rests solely with the page owner(s). AmMotorSports http://www.ammotorsports.com/ForRaceFans.htm SpeedFX: Nascar http://www.speedworld.net/ About.com Auto Racing http://autoracing.about.com/cs/scanner/index.htm
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RACING SCANNERS

Product-specific Questions

Product: PRO-74 Scanner	Cat. No.: 200-0513
Question: What is the impedance of the headphone jack?
Answer: The jack is rated at 16 ohms.
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Product: PRO-74 Scanner	Cat. No.: 200-0513
Question: How do I use limit search?
Answer: This is not a feature on this scanner. You can do a band search, but not a limit search.
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Product: PRO-89 Racing Scanner	Cat. No.: 200-0514, 200-0048
Question: Is there a cable for wired programming for my racing scanner?
Answer: Yes; this cable and software is available as catalog number 20-048. This is a store-stocked item and can be either purchased through your local store, ordered through our Catalog Order Center at 800-843-7422, Option 2, (Catalog, Parts and Accessory Ordering) or ordered on-line by clicking on the catalog number.
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Product: PRO-89 Racing Scanner	Cat. No.: 200-0514, 200-0048
Question: How do I get On-air Programming to work with my computer?
Answer: The steps in the manual are incorrect; On-air programming allows you to program your scanner by tuning to a particular frequency provided by the racetrack. It does not use a computer. The correct steps for doing this are given below: Turn off the scanner. While pressing ENT and 8, turn on the scanner. On Air and PGM appear and the scanner automatically receives 154.600 MHz in FM mode. Then On Air and the frequency alternate. If you do not want to use 154.600 MHz to receive programming, press PGM. PGM flashes. Then, use the number keys to enter the frequency you want to receive and press ENT. To change the frequency back to the default (154.600 MHz), hold down ENT then press CL. Note: You cannot use an AM frequency during on-air programming. Do not enter a frequency between 108.000 and 136.9875 MHz. When the scanner successfully receives all data, End and FiniSh appear. If the scanner received an error while receiving data, End and d-Err appear. If the scanner received a checksum error while receiving data, C-Err and a number appear. The number shown next to C-Err indicates the packet number where the error occurred.
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CONVENTIONAL SCANNERS

Product: PRO-25 Portable Scanner

Cat. No.: 200-0106

Question: How do you program this?

Answer: This is crystal-controlled, rather than programmable. While RadioShack no longer carries crystals, you may find what you need by contacting International Crystal Manufacturing Co., Inc. for assistance.

International Crystal Manufacturing Co., Inc.
10 North Lee Street
Oklahoma City, OK 73102

Customer Service: 606-283-5000
Technical Assistance: 800-725-1426

Please note: this company is not affiliated with RadioShack Corporation.

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Product: PRO-25 Portable Scanner

Cat. No.: 200-0106

Question: What is the frequency range?

Answer: This scanner requires crystals for each individual frequency and supports a maximum of 8 crystals installed at any time. The frequency range is:

30-50 MHz

118-139 MHz

144-174 MHz

450-512 MHz

While RadioShack no longer carries crystals, you may find what you need by contacting International Crystal Manufacturing Co., Inc. for assistance.

International Crystal Manufacturing Co., Inc.
10 North Lee Street
Oklahoma City, OK 73102

Customer Service: 606-283-5000
Technical Assistance: 800-725-1426

Please note: this company is not affiliated with RadioShack Corporation.

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Product: PRO-27 2-Channel Pocket Scanner

Cat. No.: 200-0108

Question: How do I change frequencies?

Answer: This scanner is crystal-controlled. While RadioShack no longer carries crystals, you may find what you need by contacting International Crystal Manufacturing Co., Inc. for assistance.

International Crystal Manufacturing Co., Inc.
10 North Lee Street
Oklahoma City, OK 73102

Customer Service: 606-283-5000
Technical Assistance: 800-725-1426

Please note: this company is not affiliated with RadioShack Corporation.

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Product: COMP-100 Scanner

Cat. No.: 200-0110

Question: What is the formula to convert a frequency for use with this scanner?

Answer: This scanner uses 16 switches set to either 1 or 0 to program the frequency. Here is the formula, with an example to work with:

Take the display and divide it into groups of 4 bits each:

01 02 03 04	05 06 07 08	09 10 11 12	13 14 15 16
1	2	3	4

Group 1 is as follows:

Band	MHz	1	2	3	X
VHF Lo	30-50	0	0	0	0
VHF Hi	150-172	0	0	1	120
UHF LO	450-470	0	1	0	420
UHF Mid	470-490	0	1	1	440.0025
UHF Hi	490-512	1	0	0	460.0025

Bits 1, 2, and 3 are from the column 1, 2, and 3 above. To find bit 4, do the following:

(Freq - X +10.7) / 12.8

The answer is between 3 and 5. If the answer is 4 or greater, then bit 4=0. If the answer is less than 4, bit 4=1.

Subtract either 3 or 4 from the number to leave a positive number 0 and less than 1. Multiply by 16. Enter the whole part of the number as HEX in group 2 above.

Subtract the whole number to leave a value again greater than 0 and less than 1. Multiply by 16 again. Enter the whole part of the number as HEX in group 3 above.

Subtract the whole number to leave a value again greater than 0 and less than 1. Multiply by 10 this time. Enter the whole part of the number as HEX in group 4 above.

Example: 40.125 MHz

The 1 2 3 bits = 0 0 0

000x xxxx xxxx xxxx

The formula yields 3.9707031, making bit 4 = 1

0001 xxxx xxxx xxxx

Subtract 3 from 3.9707031, yielding 0.9707031

Multiply 0.9707031 by 16, yielding 15.53125, and making group 2 = 15 (1111)

0001 1111 xxxx xxxx

Subtract 15 from 15.53125, yielding 0.53125

Multiply 0.53125 by 16, yielding 8.5, making group 3 = 8 (1000)

0001 1111 1000 xxxx

Subtract 8 from 8.5, yielding 0.5

Multiply 0.5 by 10, yielding 5, and making group 4 = 5 (0101)

The coding for 40.125 MHz is 0001 1111 1000 0101.

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Product: PRO-2020 Scanner

Cat. No.: 200-0112

Question: What is the frequency range?

Answer: The frequency ranges are as follows:

VHF Mid:	30-50 MHz
Aircraft:	108-136 MHz
VHF High:	138-174 MHz
UHF:	410-512 MHz

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Product: PRO-2021 Programmable Scanner

Cat. No.: 200-0113

Question: How many channels and what is the frequency range?

Answer: This has 200 channels. The frequency ranges are given below:

VHF Low:	68-88 MHz in 5 kHz steps
VHF Mid:	30-50 MHz in 5 kHz steps
Aircraft:	108-136 MHz in 25 kHz steps
VHF High:	138-174 MHz in 5 kHz steps
UHF:	410-512 MHz in 1.25 kHz steps

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Product: PRO-2001 Scanner

Cat. No.: 200-0115

Question: How do I program frequencies?

Answer: It is programmed as below:

Turn on the scanner.
Turn Squelch clockwise
Press the channel switch.
Select the channel you want to program.
Press Manual, then Program, and the Program LED will light up.
Enter the frequency.
Monitor until you hear a station.
Press Enter.

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Product: PRO-2011 20-Channel Programmable Scanner

Cat. No.: 200-0118

Question: Where is the backup battery located and what battery does it use?

Answer: This scanner does not have a battery backup.

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Product: PRO-53 Crystal-controlled Scanner

Cat. No.: 200-0122

Question: How do I identify which crystal is installed?

Answer: The frequency is written on the crystal.

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Product: PRO-54 FM Scanner

Cat. No.: 200-0123

Question: What crystals did this come with?

Answer: This scanner did not come with crystals installed. While RadioShack no longer carries crystals, you may find what you need by contacting International Crystal Manufacturing Co., Inc. for assistance.

International Crystal Manufacturing Co., Inc.
10 North Lee Street
Oklahoma City, OK 73102

Customer Service: 606-283-5000
Technical Assistance: 800-725-1426

Please note: this company is not affiliated with RadioShack Corporation.

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Product: PRO-55 VHF/UHF Scanner

Cat. No.: 200-0124

Question: How do I program this?

Answer: This is not a programmable scanner; it is crystal controlled. While RadioShack no longer carries crystals, you may find what you need by contacting International Crystal Manufacturing Co., Inc. for assistance.

International Crystal Manufacturing Co., Inc.
10 North Lee Street
Oklahoma City, OK 73102

Customer Service: 606-283-5000
Technical Assistance: 800-725-1426

Please note: this company is not affiliated with RadioShack Corporation.

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Product: PRO-1 Patrolman Scanner

Cat. No.: 200-0130

Question: I need a replacement AC adapter.

Answer: This used the 200-1501 adapter, which is no longer available due to the age of this scanner (it was discontinued in 1970). It was a specially designed adapter with 2 positive and 1 negative.

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Product: PRO-30 Scanner

Cat. No.: 200-0131

Question: I need a replacement AC adapter.

Answer: This requires a 9V, 300 mA (minimum) adapter with a 2.1 mm / 5.5 mm plug. The 273-1810 DC/DC adapter meets these requirements and includes the correct plug. The 273-1767 AC/DC adapter meets these requirements and comes with your choice of one free adaptaplug. You will need the "M" size adaptaplug, Cat. No. 273-1716.

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Product: PRO-31 Portable Scanner

Cat. No.: 200-0132

Question: How do I program this scanner?

Answer: The scanner is programmed as below:

Press Manual.
Press the channel number you want to program.
Press Manual.
Press Program.
Enter the frequency.
Press Enter.

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Product: PRO-35 100-Channel Portable Programmable Scanner

Cat. No.: 200-0136

Question: What jack does the power cord go into? There are two jacks.

Answer: For either a DC or AC power source, connect the barrel plug to the jack on the left side of the antenna - the jack on the back side of the battery pack is for charging only.

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Product: PRO-36 Programmable Scanner

Cat. No.: 200-0137

Question: What is the recommended power adapter?

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Product: PRO-36 Programmable Scanner

Cat. No.: 200-0137

Question: What is the recommended power adapter/charger?

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Product: PRO-38 10-Channel Programmable Scanner

Cat. No.: 200-0139

Question: What battery pack and charger are used for this?

Answer: The battery pack is no longer available as the PRO-38 was discontinued in 1991. The charger for this pack is a 9V, 300 mA (minimum) adapter with a 1.3 mm / 3.4 mm plug. The 273-1810 DC/DC adapter meets these requirements and includes the correct plug. The 273-1767 AC/DC adapter meets these requirements and comes with your choice of one free adaptaplug. You will need the "H" size adaptaplug, Cat. No. 273-1711.

When charging, be sure to change the switch in the battery compartment (Alk/Chg) to Chg.

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Product: PRO-2005 AM/FM Programmable Scanner

Cat. No.: 200-0144

Question: Why does this scanner keep beeping?

Answer: If it shows a battery symbol and it beeps -- it is the low battery indicator and either the battery pack or internal lithium battery is low.

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Product: PRO-2006 Scanner

Cat. No.: 200-0145

Question: What is the ATT switch for?

Answer: The ATT switch toggles the built-in attenuator.

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Product: PRO-2056 Mobile Scanner

Cat. No.: 200-0147

Question: Is there a chip to allow 800 MHz range?

Answer: We do not have an update for the PRO-2056. We have no information on and cannot support modification of our scanners.

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Product: PRO-2026 100-Channel Mobile VHF/UHF Programmable Scanner

Cat. No.: 200-0148

Question: How do I lock out service frequencies?

Answer: The priority and lock-out features do not function in this mode.

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Product: PRO-2046 100-Channel Programmable Mobile Scanner

Cat. No.: 200-0149

Question: Is it triple conversion? What are the IF frequencies?

Answer: No, it is dual-conversion. The IF Frequencies are 10.85 MHz and 450 kHz.

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Product: PRO-2046 100-Channel Programmable Mobile Scanner

Cat. No.: 200-0149

Question: Is this a digital or analog scanner?

Answer: This is an analog scanner.

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Product: PRO-2066 Trunk-Mounted Mobile Scanner

Cat. No.: 200-0195

Question: I need a replacement DC adapter.

Answer: This is available by special order as part number RSU 11122827. You can order this through your local store or by calling the order center at 800-843-7422.

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Product: PRO-2066 Trunk-Mounted Mobile Scanner

Cat. No.: 200-0195

Question: Does this have a backlight?

Answer: Yes, this scanner includes a backlit liquid crystal display.

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Product: PRO-2066 Trunk-Mounted Mobile Scanner

Cat. No.: 200-0195

Question: What are the specifications on micro volt reception on the VHF high band (108-176 MHz)?

Answer: The PRO-2066 is rated at 0.5 mV.

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Product: PRO-43 200-Channel Portable Scanner

Cat. No.: 200-0300

Question: What is the impedance of the external speaker jack?

Answer: The jack is rated for an 8 ohm speaker, such as Cat. No. 210-0549 and 210-0541.

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Product: PRO-39 VHF/UHF Hand-Held Scanner

Cat. No.: 200-0303

Question: Is this dual or triple conversion and what are the IF frequencies?

Answer: This uses dual-conversion. The IF frequencies are 10.7 MHz and 455 kHz

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Product: PRO-46 VHF/UHF 100-Channel Scanner

Cat. No.: 200-0305

Question: Why won't this scanner pick up the Blue Angels frequencies?

Answer: The frequencies are outside of the scanner's reception band.

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Product: PRO-46 VHF/UHF 100-Channel Scanner

Cat. No.: 200-0305

Question: What adapter works with this?

Answer: This requires a 9V, 300 mA (minimum) adapter set to tip negative. The 273-1767 AC/DC adapter meets these requirements and comes with your choice of one free adaptaplug. The 273-1767 AC/DC adapter meets these requirements and comes with your choice of one free plug (plug "H", Cat. No. 273-1711)..

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Product: PRO-51 200-Channel Scanner

Cat. No.: 200-0308

Question: What charger does this require?

Answer: This requires a 9V, 300 mA (minimum) adapter with a 1.3 mm / 3.4 mm plug. The 273-1810 DC/DC adapter meets these requirements and includes the correct adaptaplug. The 273-1767 AC/DC adapter meets these requirements and comes with your choice of one free plug (plug "H", Cat. No. 273-1711).

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Product: PRO-51 200-Channel Scanner

Cat. No.: 200-0308

Question: Is this a trunking scanner?

Answer: No.

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Product: PRO-76 Scanners

Cat. No.: 200-0313, 200-0048

Question: Is there a cable for wired programming for my scanner?

Answer: Yes; this cable and software is available as catalog number 20-048. This is a store-stocked item and can be either purchased through your local store, ordered through our Catalog Order Center at 800-843-7422, Option 2, (Catalog, Parts and Accessory Ordering) or ordered on-line by clicking on the catalog number.

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Product: PRO-79 Scanners

Cat. No.: 200-0314, 200-0048

Question: Is there a cable for wired programming for my scanner?

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Product: PRO-79 Scanners

Cat. No.: 200-0314

Question: How do I get the scanner into Wired mode for programming?

Answer: To use the Wired Programming for the PRO-79, you will need to follow the steps below:

Note: Wired programming stops if the scanner receives an empty channel number.

Turn off the scanner.
Connect the scanner to the PC using a PC cable.
While pressing ENT and 9, turn on the scanner. PGM and WirEd appear. Then send the data from the PC. StArt and the data being received by the scanner appears in the order it is received.
Note: If the scanner receives no data from the PC for more than 20 seconds or if you press any key, wired programming stops. If the scanner did not receive a start bit from the PC, StArt does not appear.
When the scanner successfully receives all data, End and FiniSh appear. If the scanner received an error while receiving data, End and d-Err appear. If the scanner received a checksum error while receiving data, C-Err and a number appear. The number shown next to C-Err indicates the packet number where the error occurred.
Note: If the scanner did not receive an end bit from the PC, End does not appear.

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Product: PRO-2029 60-Channel Scanner

Cat. No.: 200-0404

Question: How do I program frequencies into this scanner?

Answer: This is programmed as below:

Press Manual.
Press Program.
Enter the frequency.
Press Enter.

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Product: PRO-2034 60-Channel Programmable Base Scanner

Cat. No.: 200-0411

Question: Why am I not getting the last digit on the display between 29-54 MHz and 137-174 MHz?

Answer: In order to enter the last digit, you need to enter frequency manually. However, you will not see the last digit -- you will see a (0) for it instead. These frequencies have a step rate of 5 kHz.

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Product: PRO-2036 200-Channel Scanner

Cat. No.: 200-0412

Question: I need a replacement lithium battery for this scanner.

Answer: The 3-Volt, 180 mAh lithium battery is available as part number RSU 10586923. Because this is available as special order only, you would need to order it through either your local RadioShack store or by calling 800-843-7422.

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Product: PRO-2038 50-Channel Scanner

Cat. No.: 200-0413

Question: Why am I not getting some frequencies in the 450-470 MHz; is it due to rounding?

Answer: Yes, the step frequency (12.5 kHz) is automatic and will always do this.

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Product: PRO-2043 30-Channel Direct Entry Programmable Scanner

Cat. No.: 200-0415

Question: Does this have a backlight display?

Answer: No.

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Product: PRO-2043 30-Channel Direct Entry Programmable Scanner

Cat. No.: 200-0415

Question: This has lockout showing on all channels, and it won't go out.

Answer: If 000.000 is displayed on the channel, then there is no frequency stored. When you program a new frequency, the lockout is automatically removed. You cannot remove lockout before programming a channel. If this is not the case, then you may need to reset the scanner.

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Product: PRO-2050 VHF/UHF/Air/800 MHz 300-Channel Scanner

Cat. No.: 200-0430

Question: Why is it giving an error once the frequencies have been programmed in?

Answer: It should not do this. Try resetting, then program the frequencies in different banks and try again.

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Product: PRO-2050 VHF/UHF/Air/800 MHz 300-Channel Scanner

Cat. No.: 200-0430

Question: What does this use for memory backup and how long will it hold memory?

Answer: It uses an EEPROM for memory backup and should last years.

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Product: PRO-2050 VHF/UHF/Air/800 MHz 300-Channel Scanner

Cat. No.: 200-0430

Question: What type of antenna does it come with?

Answer: This comes with a telescoping antenna.

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Product: PRO-2050 VHF/UHF/Air/800 MHz 300-Channel Scanner

Cat. No.: 200-0430

Question: Why do I have to turn squelch all the way for aircraft channels?

Answer: Aircraft frequencies have limited access.

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Product: PRO-2037 200-Channel Programmable Scanner

Cat. No.: 200-0461

Question: How do I program frequencies?

Answer: You can program the frequencies using the steps below:

Press Manual.
Enter the channel number you want to program.
Press Program.
Enter the frequency.
Press Enter.

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Product: PRO-2037 200-Channel Programmable Scanner

Cat. No.: 200-0461

Question: I can't program 867.7870 - it programs as 867.7750 and 867.437 programs in as 867.425. Why?

Answer: These frequencies have a step rate of 12.5 KHz.

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Product: PRO-2042 1000-Channel Programmable Scanner

Cat. No.: 200-0464

Question: Can you dim the backlight?

Answer: No.

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Product: PRO-25 100-Channel Programmable Scanner

Cat. No.: 200-0505

Question: What adapter is required?

Answer: This has a power requirement of 6 Volts DC and a minimum of 300 mA.

The 273-1805 DC/DC adapter meets these requirements and comes with your choice of one free adaptaplug. The 273-1758 AC/DC adapter meets these requirements and also comes with your choice of one free adaptaplug.

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Product: PRO-28 30-Channel Hand-Held Scanner

Cat. No.: 200-0508

Question: What is the difference between 200-0508UV and 200-0508UW?

Answer: The only difference is the manufacturing date.

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Product: PRO-66 Scanner

Cat. No.: 200-0511

Question: What is the power adapter tip size & polarity for this scanner?

Answer: 5.5 mm (Outer), 2.1 mm (Inner), Tip = Positive. This tip is available as the "M" size adaptaplug for our adapters, sold as Cat. No. 273-1716.

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Product: PRO-67 200-Channel 800 MHz Scanner

Cat. No.: 200-0512

Question: Can you charge NiMH batteries in this scanner?

Answer: No.

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Product: PRO-63 100-Channel Hand-Held Scanner

Cat. No.: 200-0561

Question: How do I set the scanner so that it does not use priority scanning?

Answer: If you don't want to use priority, then you need to enter zeroes for each priority channel. If you enter a frequency in a priority channel, then it will go to that channel when someone talks on that frequency.

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Product: PRO-64 400-Channel Hand-Held Scanner

Cat. No.: 200-0564

Question: How do I charge the batteries?

Answer: While you can use rechargeable batteries to power the scanner, you must remove them from the scanner and use an external charger. You cannot charge the batteries in the scanner.

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Product: PRO-64 400-Channel Hand-Held Scanner

Cat. No.: 200-0564

Question: How do I get a replacement battery pack?

Answer: The 7.2-Volt / 600 mAh battery pack is no longer available as the PRO-64 was discontinued in 1997.

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Product: PRO-64 400-Channel Hand-Held Scanner

Cat. No.: 200-0564

Question: Do you sell an adapter for using the PRO-64 with a computer?

Answer: The adapter is no longer available as the PRO-64 was discontinued in 1997.

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Product: PRO-64 400-Channel Hand-Held Scanner

Cat. No.: 200-0564

Question: In the computer interface, how do I get information on commands not on the CD?

Answer: We do not have this information and can only recommend that you contact the software designer at:

Computer Aided Technology
Mail: P.O. Box 18285, Sports City, LA 71138
Tech Support: 318-687-2555 or 888-722-6228
Fax: 318-686-0449
E-mail: scancat@scancat.com

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Scanner Frequently Asked Questions Section 3 - Racing & Conventional Scanners

RACING SCANNERS

General Questions

Product-specific Questions

CONVENTIONAL SCANNERS

RACING SCANNERS

General Questions

RACING SCANNERS

Product-specific Questions

CONVENTIONAL SCANNERS

Scanner Frequently Asked Questions
Section 3 - Racing & Conventional Scanners