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20-428 Owner’s Manual 

 

Page 1 of 50   

RadioShack 
 
20-428 
PRO-2055 1,000 Channel Multi Trunking Mobile/Base Scanner 
 
Please read this user’s guide before installing, setting up and using your new product 

www.radioshack.com

 

 
 
Thank you for purchasing your Pro-2055 multi trunking scanner from RadioShack. You can mount 
your scanner in a fixed position and use it as a base scanner or you can use it as a mobile scanner by 
mounting it in a vehicle. This scanner is one of a new generation of scanners designed to track 
Motorola® Type I and II (such as Smartnet® and Privacy Plus®) and hybrid analog trunking 
systems, GE-Ericsson (EDACS®) type systems, and EF Johnson (LTR) type systems which are 
extensively used in many communication systems. No additional hardware or add-on cards are 
needed. 
 
what’s included 
 
user’s guide 

quick start guide  

preloaded data addendum 

Scanner  

Antenna 

DC cable w/fuse   

AC adapter 

DIN sleeve and keys (2)   

Mounting bracket 

Knob (2)  

Rubber washer (2) 

Lock washer (2) 

Screw (2) 

Rubber foot (3) 

 
contents 
 
will add 
 
© 2005 RadioShack Corporation. 
All Rights Reserved. 
 
RadioShack, RadioShack.com, Hypersearch, Hyperscan, and Adaptaplug are trademarks used by 
RadioShack Corporation. 
Motorola, Smartnet, ASTRO and Privacy Plus are registered trademarks of Motorola Inc. 
EDACS is a registered trademark of MA-COM Inc. 
LTR is a registered trademark of EF Johnson. 
 
 
 
your scanner’s keypad 
 
TRUNK – stores the Trunking ID code or holds the trunking ID while scanning. 

Summary of Contents for Pro 2055

Page 1: ...ACS type systems and EF Johnson LTR type systems which are extensively used in many communication systems No additional hardware or add on cards are needed what s included user s guide quick start gui...

Page 2: ...even preprogrammed weather channels or jumps to a Skywarn channel you programmed 997 999 PRI Priority sets and turns the priority function on or off TEXT lets you input text MODE changes the receive m...

Page 3: ...nner into the sleeve until it locks in place Notes To remove your scanner from the DIN sleeve insert the two keys straight into the scanner s front panel Then remove the scanner by pulling front panel...

Page 4: ...utlet through your vehicle s ignition or from your vehicle s cigarette lighter from a wall outlet add photograph 1 Connect the tip of the supplied AC adapter to the DC 13 8V jack at the rear of your s...

Page 5: ...e such as a cigarette lighter socket you need a 12V 600mA DC cigarette lighter adapter not supplied available at your local RadioShack store 1 Insert the adapter s barrel plug into the scanner s DC 13...

Page 6: ...When you mount your scanner in your dashboard you will need to connect an external speaker or headphones add photograph listening safely To protect your hearing follow these guidelines when you use he...

Page 7: ...The AM mode sets the scanner to receive transmissions using amplitude modulation AM primarily used for aircraft military some amateur radio and some government transmissions Refer to Specifications f...

Page 8: ...s setting is called the Motorola mode Motorola systems are Trunking systems used primarily by business and public safety groups to efficiently allocate a small number of frequencies as few as five to...

Page 9: ...g is called the EDACS mode EDACS systems are trunking systems used primarily by business or private communications service providers as well as by some public safety organizations EDACS systems transm...

Page 10: ...s occurring on To correctly program this Home Repeater number into your scanner be sure that the channel number in the bank is equal to the number that is displayed after the R For example if you see...

Page 11: ...o open or closed mode In open mode the scanner scans signals transmitted in all systems The scanner stops on any ID code and only uses the ID list to look up ID text tags In closed mode the scanner st...

Page 12: ...the point of threshold to avoid receiving noise or signals that are too weak to understand storing known frequencies into channels Good references for active frequencies are RadioShack s Police Call...

Page 13: ...n the display Because steps are so close together the audio quality will not be affected by the offset After a transmission the scanner automatically pauses for 2 seconds on this channel before procee...

Page 14: ...gram a specific code press FUNC MODE and then use the arrow keys to scroll to the desired CTCSS or DCS code You can also use the keypad to enter the code manually Note that the scanner will automatica...

Page 15: ...5 627 754 031 074 155 244 311 412 466 631 032 114 156 245 315 413 503 632 036 115 162 246 325 423 506 654 043 116 165 251 331 431 516 662 047 122 172 252 332 432 523 664 storing trunking frequencies i...

Page 16: ...in the 6 meter range input HAM 6m as follows H is the second letter associated with 4 on the keypad Press 4 then 2 A is the first letter associated with 2 on the keypad Press 2 then 1 M is the first l...

Page 17: ...sign the text tag to a channel or you press FUNC and bank number when you assign the text tag to a bank press 1 Then press the desired number you want to enter To enter lowercase character or a charac...

Page 18: ...aft SR5 Amateur Bands SR6 Limit search User changeable Follow these steps to select preprogrammed search bands and search them for active frequencies 1 Repeatedly press SRCH to select your desired sea...

Page 19: ...6 6500 14 156 7000 15 156 7500 16 156 8000 17 156 8500 18 156 9000 19 156 9500 20 157 0000 21 157 0500 161 6000 22 157 1000 23 157 1500 24 157 2000 25 157 2500 161 8000 161 8500 26 157 3000 27 157 350...

Page 20: ...50 23 27 2550 24 27 2350 25 27 2450 26 27 2650 27 27 2750 28 27 2850 29 27 2950 30 27 3050 31 27 3150 32 27 3250 33 27 3350 34 27 3450 35 27 3550 36 27 3650 37 27 3750 38 27 3850 39 27 3950 40 27 4050...

Page 21: ...4 445 15 154 650 154 950 15 155 010 155 370 60 155 415 155 700 15 155 730 156 210 60 158 730 159 210 60 166 250 170 150 2 453 0375 453 9625 12 5 458 0375 458 9625 12 5 460 0125 460 6375 12 5 465 0125...

Page 22: ...lt setting searching active frequencies in a range You can program the desired frequency range for a search 1 Repeatedly press SRCH to select SR6 2 Press PROG then SRCH Enter SR6 Search Range Limits a...

Page 23: ...e and SR5 Amateur bands You can turn off or on the groups by pressing the group numbers For example to turn off 0 press 0 In the Air and Limit search bands press FUNC then press to start searching up...

Page 24: ...You can configure your scanner to operate in SAME Standby mode where it monitors a selected weather radio station for SAME alerts for areas you specify You can program your scanner with up to 10 FIPS...

Page 25: ...utomatically change every 3 seconds 2 Press any key except DIM to stop test sound mode Skywarn Many areas of the country have amateur radio repeaters that have been designated as Skywarn repeaters Dur...

Page 26: ...n copy a frequency into a vacant channel in a specified bank when the scanner stops on the frequency during search or tune mode 1 Press FUNC then ENT when you find a frequency you want to copy Bank 9...

Page 27: ...e frequency is found the transmission is played through your scanner s speaker and you can quickly store it in any of your scanner s memory locations using Signal Stalker II Your scanner s Signal Stal...

Page 28: ...of the Signal Stalker II will be impacted Signal Stalker II features a special lockout mode that causes the scanner to skip a 1 MHz segment if five or more lockouts exist in that 1 MHz segment To act...

Page 29: ...the group s specific CTCSS or DCS code for a certain frequency CTCSS and DCS can also help reduce instances where interfering signals cause your scanner to stop on one channel When your scanner stops...

Page 30: ...ner s channels Then when the scanner stops on the channel DLY appears and the scanner continues to monitor the channel for 2 seconds after the transmission stops before it resumes scanning The delay f...

Page 31: ...ch bank is activated All ranges Locked out appears and the scanner does not search reviewing locked out frequencies To review the frequencies within a search bank that you locked out 1 Press SRCH to s...

Page 32: ...riority feature does not operate while the scanner receives a trunking voice channel or during trunking delay time Therefore the priority check seems random during peak hours If you program a weather...

Page 33: ...on that frequency the scanner sounds the alert tone To turn off the priority feature press PRI changing the receive mode The scanner is preset to the most common AM or FM receive mode for each frequen...

Page 34: ...es to att You cannot set the attenuator while the scanner is scanning Press FUNC and then ATT to set the attenuator to its global mode Global ATT appears for 2 seconds at the bottom line and atg appea...

Page 35: ...ansferred they are set to default 1 Turn on both scanners 2 Connect the connecting cable to each scanner s PC IF jack CLONE MODE Press UP to send Remove cable to exit appears 3 Press Confirm to send d...

Page 36: ...d for the ID appears If not found scanning resumes immediately unless the bank is in open trunking mode Notes There might be more than one talk group transmitting at a time in some Motorola trunking s...

Page 37: ...an EDACS system you must store them in the Logical Channel Number order usually listed as LCN For example LCN1 would go into channel 01 for the current bank and LCN2 would go into channel 02 If you a...

Page 38: ...am the scanner to receive transmissions in the UHF Lo band 406 512 MHz of the Motorola Trunking system You can receive these transmissions by checking the trunking system s control channel You must pr...

Page 39: ...nking Notes On the 800 MHz Trunking band you can select a base frequency normal or offset On the 900 MHz Trunking band you do not need to set the base frequency base offset step 1 Press PROG then TRUN...

Page 40: ...S11 S4 S4 S4 S4 S4 S3 6 S11 S4 S12 S4 S4 S12 S4 S4 7 S11 S4 S4 S4 S4 S4 Block Size Code 9 10 11 12 13 14 15 16 0 S4 S0 S4 S0 S3 S4 S4 S3 1 S4 S0 S0 S0 S3 S3 S4 S10 2 S0 S0 S0 S0 S11 S10 S4 S10 3 S0 S...

Page 41: ...D save X XX then it changes to ID XXXX The first X in ID save X XX is the sub bank number 0 4 in the bank XX is the number of IDs from 00 29 in each sub bank If the ID has already been stored when you...

Page 42: ...ped on a voice channel VC appears hold down TRUNK until ID hold ON appears When ID hold is activated and the scanner receives a voice channel the scan indication S at the first digit in the top line c...

Page 43: ...1 Press TEXT while the scanner is receiving the voice channel and indicating the text name The ID code appears as MOT XXXXXX etc 2 Press TEXT again to cancel delay function in ID indication mode You c...

Page 44: ...new set of talk group IDs 1 Press PROG 2 Press TRUNK to enter a talk group ID memory mode 3 Select a talk group ID bank using FUNC or 4 Press FUNC then 6 Clear entire list Press 1 to clear all any ot...

Page 45: ...operate it birdie frequencies Every scanner has birdie frequencies Birdies are signals created inside the scanner s receiver These operating frequencies might interfere with transmissions on the same...

Page 46: ...z 0 5 V 806 960 MHz 0 7 V 1240 1300 MHz 0 7 V AM 25 54 MHz 1 V 108 136 99166 MHz 1 V 137 174 MHz 1 5 V 216 225 MHz 3 V 406 512 MHz 2 V 806 960 MHz 2 V 1240 1300 MHz 3 V Selectivity 25 27 995 MHz at AM...

Page 47: ...might need to reset or initialize it If you have problems with the scanner first try resetting it which will retain items stored in memory If that does not work initialize the scanner You may be able...

Page 48: ...is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect...

Page 49: ...nnels are storage areas for frequencies Whereas a channel can only contain one frequency a bank can hold numerous channels Search Banks contain preprogrammed frequencies in the scanner s memory Your s...

Page 50: ...nted object into the reset hole on the back of the scanner or initialize the scanner see Initializing the Scanner The scanner is on but does not scan What s wrong The squelch might not be adjusted cor...

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