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HomeMy WebLinkAboutAgenda Report - March 3, 1993 (88)os CITY OF LODI COUNCIL COMMUNICATION AGENDA TITLE: New Radio Repeater System for Lodi Police Department, purchased with Asset Seizure Funds MEETING DATE: March 3, 1993 PREPARED BY: Police Chief RECOMMENDED ACTION: To approve the purchase of a new Radio Repeater System and installation of three new telephone circuits for a total cost of $30,133.11 for the Police Department. BACKGROUND INFORMATION: Captain Larry D. Hansen will be present to answer any questions the Council may have. Please refer to the attached informational memorandums. FUNDING: Asset Seizure Funds in the amount o $30,133.11. i �0 � )-, - Flo d illiams Chief of Police FAW:sm cc: City Attorney APPROVED THOMAS A. PETERSON recyclea cave, City Manager CC -1 I, u D I P O L I C E D E P .. R T M E N T M e m o r a n d u m To: Floyd A. Williams Chief of Police From: Captain Larry D. Hansen Patrol Division Commander Date: February 23, 1993 Subject: RADIO REPEATER SYSTEM As you are aware, City Council approved a special allocation from our Asset Seizure funds to purchase new weapons for the Lodi Police Department. Prior to making the purchase of these weapons, supervisors and officers expressed concern over spending money on weapons rather than on a new radio repeater system. We conducted a survey and determined that the majority of our personnel felt the radio reception was so poor, it deserved to be a higher priority than the purchase of weapons. Lieutenant David Main did the research with Motorola and submitted a proposal for a new Radio Repeater System. This system should greatly enhance the ability of our officers to communicate on their portables. Many officers feel strongly that this is an officer safety issue. The three radio repeaters will be placed on towers located at Lodi Fire Station #2 (705 E. Lodi Avenue), Lodi Fire Station #3 (2141 S. Ham Lane) and Woodbridge Fire Station on Augusta Street. The cost of this system is $27,985.11 for the equipment and $2,148.00 for the three telephone circuits. In addition, there will be a monthly charge of $137.04 for the 2001 Voice Grade 2 -wire telephone lines. The total cost out of Asset Seizure funds for equipment and installation of telephone circuits is $30,133.11. NOTE: Please refer to attached memorandum from Lieutenant David Main and the proposal submitted by Motorola. Respectfully submitted, C Cap ai arry D. Hansen Patrol Division Commander LDH: jh P A R T M c n; T ^" e m o r a rr d :i m To: .ar:,t.^in ._arry Han_•en From: �David .J. Main <� L. teutenant Date: August 14, 1992 Subject: RADIO REPEATER. SYSTEM #f#Mf###fffi— As I am sure you are aware, radio reception and transmission in south Lodi has been very poor, especially when using portable radios. it isnot uncommon for it to be virtually impossible to transmit via portable radio south of Kettleman Lane. This creates a real officer safety hazard. In exploring all of the possible solutions I find that most are very expensive, in excess of $70,000.00. The easiest cure and probably the most cost effective, would be to install a satellite receiver voting station. In simpler terms this system acts as a repeater. I have outlined two different proposals for your review and consideration. HOW THE SYSTEM WORKS: Spectra Tac, Satellite Receiver Voting System is designed to enhance radio communication. A great deal of our radio communication is done on portable radios. Portable radios as you know without any type o -F a repeater systemldas very little talk out range, though the portable can easily pick up the powerful base station transmitter. The most practical way to increase this range is to supplement the base station receiver with a satellite receiver located within range of the portable radio. More receivers can be placed throughout a given area to insure that no matter where the user is, the portable can be picked up on one of these satellite receivers. This system is called a Total Area Coverage System, This Total Area Coverage System basically through an internal process, compareE and selects the test signal for transmission which is called receiver voting, It actually votes on the best signal. I realize that funds are tight at tree present time and I have tried to find the moi"t cost ef4er tine system that would take care of our current pr-blem. PROPOSAL ONE: To be able t,�, true . +tirig staition �yStern t h•9 !i unc ...elver. Ba s. gad rhe• `:en1 1 it is r4'c.(Imrn-nd-d That South Loa:. (possibly at tn.- Fire Station at west Lane and Armstrong) c,r,e in eat•t !_6d1, ind or,e north. Tnis would allow oortabie access to virtually -very locat.on within the city. l have included a total :;ost break down which is attached. COST: $ 31,750.00 PROPOSAL TWO: The least costly method to correct the problem of poor portable radio transmission in south Lodi, is to install one receiver in south Lodi. The main problem with this method is that you are dealing only with south Lodi as opposed to the entire city, and that in order to have a true voting system there needs to be• more than one receiver. It is true however than when you purchase this system 'that you are in actuality getting two receivers because there: must be one installed at the base station. The ideal situation is to have several receivers placed through out the city. However considering fiscal limitations this second proposal might be a temporary solution to the problem. Obviously proposal one is the most ideal. COST: s 21,000.00 Respectfully Submitted, David J. Main Lieutenant ��4�-� a s a' • 1 MOTOROLA COMMUNICATIONS Sc ELECTRONICS, INC. BID SPREAD SHEET Prepared by: DAVID NAASZ Date• 7/8/92 — Customer: LODI POLICE DEPT. Inv. No. Address: Opening date: SPECTRATAC ' ITEM QTY. DESCRIPTION STD.UNIT STD.TOTAL 1 3 C04RTB3108 TAC RX $3317.00 $ 9.951.00 1A 3 C105 RX SERVICE MOD. 278.00 834.00 1B 3 C28 REVERTING 474.00 1422.00 1C 3 C12 RF AMP 98.00 294.00 1D 3 C192 RX HAND SET 129.00 387.00 2 3 TRN6342 BATTERY BRACKET 82.00 246.O0 SUBTOTAL $13,134.00 3 1 T1786 DIGITAC COMPARATOR 2307.00 2307.00 3A 1 C195 41' CABINET 103.00 103.00 3B 4 0178 SOM 507.00 2268.00 3C 1 C175 KEYING MODULE 809.00 809.00 3D 1 C192 HAND SET 129.00 129.00 W ri O�A i3ODI POLiCE DEPT TAC SYSTEM INSTALLATION QUOTE i. Install and optomize 3 sight 'TAC system. Recievers to be located at Lodi Fire station #2 and #3 and at Woodbridge station #1. $2900.00 2. install and optomize single reciever and comparator. $ 1500.00 loiwedwoo a41 iol elgeyeAe Oslo woisAs Ajoileq AoueBiowa Isuolldp -elgelloAe sep!aodsa JyeeAB 411M slepow :sioy000/ e7llleies g to slndui Ideaae of se1nPoW Aipenp•IouBIS 9 41!m iolondwoo 7e111g10 UOlms-fdwo3 you! -OC 1441 44 PyeP011nuOaae eq us* eel/e1 -i1q Pall SmRooel 11141 of do :"poneq A* -Si We Ienolldo 411- uenleae/ OM.L ZHW IZB-908 ZHW OZ4-90b ZHW Z LS-OSt- ZHW bL t -Z£ L waISXS 6UQ0A .JaAIaaa8 al!IlaleS ��e�—elja3ad d�ot�rolo V�' Spectra -TAC sa._ Jite receiver voting system • Highest Audio Quality • Maximum System Flexibility • Easy Serviceability • Solid State Integrated Circuit Reliability • Data Handling Capability • Status Tone 13 d8 Below Audio The Industry's First Receiver Voting System With: • Path Loss Factoring • Path Response Compensation • Superior Receiver Shielding and Filtering • "Smart" Notch Filter* *—Does Not Degrade Voice A user equipped with a portable radio has a limited talk -out range. though his receiver can easily pick up the powerful base station transmitter. A practical way to increase this range is to supple- ment the base station receiver with a satellite receiver located within range of the portable. More such receivers plac- ed throughout a given area insure that no matter where the user is, the portable can be picked up on one of these satel- lite receivers. This setup constitutes a Total Area Coverage (TAC) system. The process of comparing and selecting the best signal when a portable reaches two or more satell , ; is known as receiver voting. The Spectra -TAC satellite receiver vot- ing system provides the user on foot with a dramatic increase in range and effectiveness of vital communications. Receiver The Spectra -TAC satellite receiver is an integrally packaged unit consisting of an RF -IF section, power supply, audio control module, and oncoder module. Dependint) on system design, the unit can also house either a Digital Private - Line coded squelch module or a Private - Line tons -coded squelch module. To reduce unwanted interference. the RF -IF section is housed in a thoroughly shield- ed package with filtered inputs. This section of the receiver provides the basic receive functions. The power sup- ply provides a constant regulated volt- age to the unit, even through crucial periods of power brown -outs. The power supply also has the capability of charg- ing an optional emergency battery, and of providing an alert signal if a power outage should occur. The Audio Control module and the Encoder module provide signalling information to the Compar- ator. Signals from these modules also enable the system to compensate for varying phone line loss and poor fre- quency respon--e. and to check for phone line outage. Comparator The Comparator evaluates the quality of the audio from the remote receivers and selects the receiver with the best audio.' This selection is a continuous process. The selected audio is then sent to a transmitter or to a dispatcher con- sole, or to both, depending on system needs. The Comparator is modular in construction, with the basic unit accom- modating a command module, a power supply and up to 8 Signal Quality Mod- ules, which makes it capable of hand- ling up to 8 remote receivers. Other models are available for greater system requirements. The Comparator power supply provides a constant regulated voltage to the unit. As with the receiver. the Comparator will continue to func- tion during power company brown -outs, and the supply has the capability to charge an optional emergency battery which can power the unit if power fails. The command module provides the Comparator r•ecessary audio amplification required to the system. The Signal Quality Mod- ules make continuous measurements of the received audio quality. Both com- parison and reselection are continuous. a necessary feature since a user on patrol often moves from the best coverage area o! one receiver into the hest coverage area of another receiver. Features • Benefits Comparator "Smart" Notch Filter.— Spectra -TAC satellite voting system features a "Smart" notch filter in the audio path that switches out whenever voice is pre- sent. • The elimination of all notch filters when voice is present results in the clearest, sharpest audio quality available. Not available with tone keying module. Automatic Line Level Adjustment: • Prevents daily line changes from affect- ing the strength of the signal at the .Provided input line sensitivity spmstmcatbn is : M. 'The term "mien" refers to the MOCVt! s eenetnti capablL rtv, not a filter used in SOnM moomle telephone systems. Comparator. Line levels do not need to be readjusted constantly to reflect line changes. Speed and Quality: The Comparator makes its first selection within 40 milii- seconds with continuous selection oc- curring in less than 1 millisecond. Voting is accomplished with 2 dB steps. • These features assure the best and most rapid audio quality selection. Panel -Mounted LEDs: Provide Signal Quality Module status information • indicating whether the receiver is voted. is unsquelched, or if there has been a failure. Built-in Power Supply: • Can be used with 120 or 240 volt. 50 or 60 Hz power sources, provides constant, regulated do power to the Comparator even with significant drop in input voltage, as in power brown -out periods. System Expansion Capability: Each Comparator chassis will handle up to 8 receivers. Additional Comparator mod- els and Add -Comparator options are available to allow comfortable expan- sion to handle any feasible system requirement. Line Outage Indication: Tells when a phone line has failed open or shorted. Transient Protection: Prevents damage caused by phone line transients. Light Emitting Diode Indicators: No light bulbs to replace. —13 dB Status Tone: This continuous signalling tone (present when receiver is squelched) is set 13 dB below peak audio signal fit to maintain high audio quality while minimizing cross- talk and channel overloading on multi- plex equipment. Receiver MICOR Radio Performance: a The all solid-state Sensitron receiver. with its .35µV EIA SINAD sensitivity coupled with high selectivity and intermodula- tion rejection. ensures maximum sys- tem performance. 800 MHz Availability: 0 All the advan- tages of Spectra -TAC receiver voting systems can now be applied to the clear spactrum of 800 MHz. Full RF Shielding: 0 Provides superior protection from RF interference at crowded sites. Receiver shown with optional test module installed. Compact Size: The receiver package is designed for 19" (475 mm) rack mounting and is only 51/." (131.25 mm) high. Several cabinet sizes are available to meet system needs. Built-in Trickle Charger: 0 Keeps op- tional battery charged for standby emergency operation_ Emergency Power Alert: fit A tone sig- nal notifies the dispatcher that the re- ceiver is on battery operation. Built-in Equalizer: fl/ Provides correc- tion for poor telephone line frequency response, maintains audio quality. Built-in Test Oscillator Included for Line Frequency Response Checks Integral Power Supply: 9 Provides 120/240Y ac. 50/60 Hz operation. Choice of Squelch: Models are avail- able with Private -Line tone -coded squelch Or with Digital Private -Line coded squelch. IMTS Compatibility: • All Spectra -TAC satellite receivers are fully compatible with Pulsar tone control IMTS systems, or optionally with DC control IMTS systems. Options Emergency Power and Alert is avail- able on both the Receiver and Compar• ator for use in case of an AC power failure. The Receiver emergency power battery will supply 24 hours of oper- ation for one Receiver/ Encoder. while the Comparator emergency power bat- tery will provide 8 hours of operation for a single Comparator chassis unit. Both have automatic battery recharge and notify the dispatcher of AC failure with periodic bursts of tone during receiver unsquelched periods_ Line Priority permits the control con- sole in tone control systems to take over transmitter operation from the Comparator. Secondary Line Driver allows the Com- parator to act as a subcomparator in larger systems, or may be used to pro- vide a second 600 ohm audio output. Receiver Test Module allows the test- ing of all RF metering points, line level measurements, and a 20 dB quieting measurement. Local monitoring is pro- vided by an integral 0.5 watt amplifier and speaker. Receiver and Comparator Handsets: Provide system intercom capability. Keying Modules: Provide tone and DC keying functions for repeater stations. Spectra -TAC satellite receiver voting system Receiver -Encoder Comparator ELECTRICAL Timing ELECTRICAL Coded Squelch Receiver: Status tone is removed Power Supply: 120/240V ac. 50-60 Hz Power Supply: 120/240V ac, upon operation of the 13.8V do 50-60 Hz Optional battery operation receivers coded squelch Input tine with automatic switchover switching circuit. Impedance. 600 ohms. balanced and battery recharge. MECHANICAL Input Line Timing Receiver/Encoder: 5`/s- x 19' rack panel Senaltivib: -38 dBm for status tone Carrier Squelch 131.25 mm x 475 mm -25 d8m at 1000 Hz Revenuer: Status tone isremovedremoved within 40 milliseconds Enclosures: Indoor 30' Cabinet holds Output Line after receipt of a 20 dB up to 3 receiver -encoders Impedance: 600 ohms, balanced quieting signal. and a muliicoupler Output Audio Level: Adjustable. +11 dBm max. Receiver 406420 MHz Output Audio Response: =1 CB from 300 to 3000 Hz 172-174 MHz - a50 512 MH: - - - 806a21 MHz - with voice transmission EIA Modulation Output Audio Acceptance: s7 kHz minimum =7 kHz minimum -8 kHz minimum _ Distortion: Less than 3% at 1000 Hz selectivity— Unselected EIA SINAD: -100 dB at =30 kHz' -90 dB at =25 kHz -80 dB at X25 kHz Channel Rejection: -50 d8m -95 dB with preamp -90 dB with preamp Oscillator Channel element Channel element and Channel element Timing: Initial selection within 40 Frequency maintains oscillator AFC maintain oscillator maintains oscillator milliseconds. Change of selection in Iess than 1 St&Mllty: frequency within frequency withinlresuency within millisecond. Dropout 0WS% from -30•C =-0002% from 00025% from delay adjustable, 10 to +W*C amblent -301C to +601C -30'C to �601C seconds maximum (+25'C reference) ambient (+25'C ambient (• 25'C (x.0002% using AFC reference) reference) MECHANICAL Optional) WITHOUT WITH WITHOUT WITH Comparator Chassis. 51:' x 19- rack panel Sensitivity— PREAMP PREAMP PREAMP PREAMP 131.25 mm x 475 mm 20 d8 quieting: Less than Less than Less than Less than Less than .5 AV Comparator 0-5 PV 0.25 AV 0-5,-V 0.25 rV Capacity: 8. 16 or 24 site inputs. EIA SINAD: Less than Less than Less than Less than Less than .35 AV depending upon model. (Per EIA RS2048) 0.35 rV 0.175 AV 0.35 AV 0.175 AV Enclosures: 30' indoor Compa•Sta• IntennodWellon— tion cabinet (holds up to EIA SINAD: -80 dB -75 dB -85 dB -80 dB -75 dB four comparator units) - Spurious A Image Reflection: 100 dB 95 dB 100 dB 100 dB 100 dB minimum minimum minimum minimum minimum System Attack Time Squaich Sensitivin.— 0.20 MV 0.10 AV 0 25 AV 0 125 AV 25 AV or less at Carrier Squelch: Audio is present at the Carrier Squelch or fess at or less at or less at or less at threshold output of the Comparator (adjustable): threshold threshold threshold threshold within 80 milliseconds Coded Squelch 0.20 AV 0.10 AV 025 AV 0.125 AV 25 AV or less at after receipt Of a 20 d8 (fixed): or less or less or less or less threshold quieted signal. Audio Telephone Line Telephone Line Telephone Line Tone -Coded Characteristics: Output: • 11 dom at Output + II dam at Output + I, d8m at Squelch: Audio 15 present at the Rel. EIA RS 2048 600 ohms, balanced 600 ohms balanced600 ohms balanced output of the Comparator within atiehe f5dBlOet. do. Response' -11 - 3 de Response' . 1 - 3 (38alter Response + 1. - 3 oB operatinds oosecn of the p emphasis chair. Distortion: 3% a: 1000 Hz Distort:an 3`6 a: 1000 Hz Distortion: 3° a at 1000 Hz receiver's coded squelch actedstics Hum 3 Noise: - 55 dB Hum 8 Noise - 55 dB Hum 8 Noise: - 55 d8 switching circuit 3043000 Hz For Local Speaker foot 1 For Local Speaker lobi I For Local Speaker iopt ) Output Available: 'ir watt Output Available •h watt Output Available '/, watt at 16 ohms at 16 ohms at 16 ohms Numbers Response . 2. - 8 dB Response . 2 - 8 08 Response + 2. - 8 dB FCC Certification Distortion 5% at 1000 Hz Distortion 56•1 at 1000 Hz Distortion 5% at 1000 Hz Hum A Noise: - 50 dB Mum 6 Noise - 50 dB Hum 8 Noise: - 50 dB 132-174 MHz: RC0107 406-512 MHz: RC0108 RF Input 806821 MHz: RC0134 Impedance: Nominal 50 ohms Nominal 50 ohms Nominal 50 ohms 85 dB B 25 kHz "M`I MOTOROLA Support Services Wherever Motorola sells. our Droduct u ro,o.o+a is backed by service In the U S, we have 900 authorized or Company 1301 E. Algonquin Road. Schaumburg, Illinois 60196 )wnea centers in addition our Telephone 13121 3971000 products are serviced throuahoui the worio by a wide network of SDeci ications subject to change without notice »moenv or authorized �ndeDe-�ce^• �+.. Motorola. MICOR, Spectra -TAC. PULSAR, •Lslrihul0r service orcaniza•r"s SENSITRON. ComDa-Station. Private -Line and Digital Privawl-ine are trademarks of Motorola Inc. O e 1975 by Motorola Inc ■Printed in U.S A 187071 Merit Motorola ,s an Eauai Empiovmenl ODportunitv•A­ ,,1•+e Ac?,,,;E•n; i,y>r R3 4-49E i A�9QTQROL A Communications and Electronic, ir?c. North America Group Western Customer Division November 3, 1992 Lodi Police Dept. 230 West Elm St. Lodi, CA 95240 Attn: Capt. Hansen Lt. Main Gentlemen: Please find enclosed the updated SpectraTac system description and equipment list you requested. !d'k,!— geply lV This SpectraTac System will consist of 3 Spectratac receivers and one Spectratac comparator that will support Lodi PD channel one. These receivers will be located at Lodi Fire Stations 2, 3 and at Woodbridge Fire Station 1. The comparator will be located at the Lodi PD radio room on Elm St. Receive audio from these receivers will be routed to the comparator through the use of dedicated public telephone lines. It is the responsibility of the Lodi Police Dept. to supply these lines. Motorola will assist Lodi PD with phone line specification and interface at telephone company "D" mark locations at the TAC system sights. TAC receiver installation cannot be completed until these phone lines are installed and operational. TAC receiver antennas will be installed on the hose towers at Lodi Fire stations 2, 3 and at Woodbridge Fire Station 1. Permission for these installations is the responsibility of Lodi PD Dept. (Motorola can assist if required). Delivery of this equipment is 4 weeks ARO. Installation can begin upon equipment delivery. Payment terms are net 30 days from receipt of equipment. Thank you for choosing Motorola as your communications system supplier. Sincerely, MOTOROLA Communications & Electronics, Inc. David Naasz 'g Account Executive BID SPREAD SHEET PREPi,RED BY: DAVID NAASZ CUSTOMER: LODI POLICE DEPT./SPECTRATAC SYSTEM ZTEM QTY DESCRIPTION UNIT PRICE i EXTENDED PRICE 1 3 C04RTB3108 TAC RX $2853.00 $8,559.00 IA 3 C105 RX SERVICE MOD $ 278.00 $ 834.00 1R 3 C28 REVERTING $ 474.00 $1,422.00 1C 3 C12 RF AMP $ 98.00 $ 294.00 1D 3 C192 RX HAND SET $ 129.00 $ 387.00 2 3 TRN6342 BATTERY BRACKET $ 82.00 $ 246.00 SUBTOTAL $11,742.00 3 1 T1786 COMPARATOR $1984.00 $1,984.00 3A 1 C195 41' CABINET $ 103.00 $ 103.00 3B 4 C178 SQM $ 567.00 $2,268.00 3C 1 C175 KEYING MODUL $ 809.00 $ 809.00 3D 1 C192 HAND SET $ 129.00 $ 129.00 3E 3F 4 5 6 1 C235 CONSOLE PRIORITY $ 618.00 $ 618.00 1 C238 CONSOLE INTERFACE $ 98.00 $ 98.00 COMPARATOR SUBTOTAL $6009.00 3 TDE6712 5.5 DB GAIN $ 700.00 $2100.00 3 TDN6599 1/2 FOAM 100 FT. $ 450.00 $1350.00 1 MICOR REPTR-MODIFICATION $1523.00 EQUIPMENT TOTAL $22,724.00 TAX 1,761.11 FREIGHT 600.00 INSTALLATION 2,900.00 TOTAL $27,985.11 It Ift