020-Florida Department of Criminal Law Enforcement0A °f San_ ord, Fl orida
P. O. Box 1778 f 32771
September 17, 1976
Mr. R. E. Dyke, Chief
Administrative Services
State of Florida
Department of Criminal Law Enforcement
P. 0. Box 1489
Tallahassee, Florida 32302
Dear Mr. Dyke:
Please find attached completed lease agreement for mounting
a two -way radio equipment antenna on the City of Sanford's
elevated water tank on Mellonville Avenue.
When your office has finalized the lease, kindly return a fully
executed copy for our files.
Yours very truly,
H. N. Tamm, Jr.
City Clerk
HNT:jd
Enclosure
"The Friendly City"
AGREE A'IENT
The parties to this agreement are the Florida Department of Criminal
Law Enforcement, a state agency, hereinafter referred to as licensee and
City of Sanford
, hereinafter referred to as
Licensor, who for and in consideration of the sum of
($ ) per month, do hereby mutually covenant and agree as follows:
That the premises leased hereby is space on a building and /or tower located
at longitude 81 degrees, 15 minutes 11 seconds
West, latitude 28
degrees, 48 minutes 09 seconds
North, for mounting two -way radio equipment, antenna and
transmission line. Equipment type and placement on and associated with the tower struc-
ture are subject to approval of licensor.
That this agreement shall continue in effect until such time as either party shall
give thirty days written notice to the other of its desire to terminate.
That it shall be the responsibility of the licensee to provide whatever filters, iso-
lation traps, and such electronic devices which are reasonably deemed necessary by the
licensor for the elimination of interference to other equipment operating at this site, shall
said interference be caused by licensee's equipment. In the event interference is not cor-
rected after notification, licensor may require licensee to cease all transmissions immedi-
ately and remain out of operation as long as interference continues.
The licensee shall be liable for and indemnify the licensor in those instances where
the licensee would be liable under applicable laws of the State of Florida.
Entered into this day of , 1.9
If Licensor is an Individual:
Signed, sealed and delivered in
the presence of: LICENSOR:
(SEAL)
(SEAL;
AS TO LICENSOR
If Licensor is a Corporation:
Signed, sealed and delivered in
the presence of:
AS TO I�nNP3 =?1W.X Mayor
Name of C • r n
CIT F 4FORP,FLORIDA
I3y: _ �}-h.i _(Corporate Seal)
IDix YxxXdoax Mayor
ATTEST
kx.fSx1KxAx)7 t Clerk
Signed, sealed and delivered in
the presence of:
LICENSEE:
STATE OF FLORIDA
DEPARTAIENT OF CRIl11INAL LAW ENFORCEAIE1
By:
Agency head
AS TO LICENSEE
STATE OF FLORIDA
OF , fH E STq�,
N
e - �
'-' POST OFFICE BOX 1489
TALLAHASSEE 32302
PHONE 904 - 488 -7880 REUBIN O'D. ASKEW, Governor
• hCOD WESP13S% BRUCE A. SMATHERS, Secretary of State
ROBERT L. SHEVIN,Attorney General
WILLIAM A. TROELSTRUP GERALD LEWIS, Comptroller
August 24, 1976 THOMAS D. O'MALLEY, Treasurer
Commissioner
DOYLE CONNER, Commissioner of Agriculture
RALPH D. TURLINGTON, Commissioner ofEducation
Mr. Pete Knowles, City Manager
City of Sanford
City Hall
Sanford, Florida
Dear Mr. Knowles:
The Department of Criminal Law Enforcement has a need for antenna
space in the general vicinity of Sanford, Florida. I understand that
Special Agent Hudson of our Orlando Field Office has contacted you
regarding the possibility of this agency obtaining antenna space on
your water tower located on Mellonville Road at Celery Avenue. I
would like to take this opportunity to formally request space on the
previously mentioned water tower for two -way radio equipment. I
am enclosing a data sheet covering the equipment that would be installed
and a copy of this Department's normal lease agreement.
Please review the agreement and, if acceptable, affix appropriate
signatures and return to me for finalizing. Copies of the fully executed
lease will be forwarded for your files.
Sincerely yours,
Frederick N. Johns, Director
Division of Staff Services
R.E. DWe,hief
Administrative Services
RED:MMsc
Enclosures
EQUIPMENT LIST
Description
uantit
UHF repeater, 70 watts in 3
outdoor pole mount cabinet
Decibel Products, Inc. model 3
DB410 antenna
Voting Selector
3*
Transmission line, 7/8 inch diameter as needed
foam filled, Heliax coaxial cable,
Andrew type FHJ5 -50A or equivalent
*The three voting selectors will be mounted in one weatherproof,
outdoor cabinet.
ST R
PROGRESS LIIIE
FM BASE STATION
TONE OR DC CONTROL
REPEATER OR REMOTE /REPEATER CONTROL
*PLUG -IN CONTROL MODULES
*UP TO 6 DC FUNCTIONS
* UP TO 12 TONE FUNCTIONS
V0)_AX51'Lf RA010
UHF BAND
FREQUENCY RANGES
406 -420, 450 -470 MHz
* RF POWER RATINGS
12, 25, 35, 40, 70, 250 WATTS
*CONTINUOUS DUTY OPERATION
CABINET STYLES
p
�
1
4 .
DESK MATE (DT)
• INDOOR INSTALLATION
h
j ..
FLOOR MOUNT (VT)
• INDOOR INSTALLATION
REPEATER STATIONS are used in many two -way radio systems
to provide increased range, elimination of area dead spots, long
range mobile- to-mobile communications, or accommodate up to
ten separate users from a single SHARED REPEATER STATION.
Repeater stations are particularly suited for remote mountain -top
installations.
MASTR Professional repeater stations are offered with a variety
of functions; cabinet styles, power ratings, method of operation and
options to provide the user with a fitting selection for a specific
application.
CONTROL PROVISIONS — Every MASTR repeater or remote/
repeater station is equipped with a basic control shelf which accepts
one or more plug -in function modules. The type and quantity of
modules furnished determines how a particular station will operate
and the method by which it may be controlled. The control system
is inherently flexible and may be easily field converted from one
mode of operation to another.
A repeater station is provided with a "repeater" function moxlule
which enables the station to automatically retransmit each message
which it receives. A remote /repeater station is similar to a standard
repeater except it includes added function modules which enable it
to be operated as either a repeater or remote station. The remote
functions modules may be specified for operation on either a DC
or tone control system.
STABILIZED PERFORMANCE is a result of MASTR's full -time
voltage regulation, that provides constant sensitivity, transmitter
drive and extended tube filament life over wide excursions of pri-
mary AC power. The need for extra line voltage regulating devices
is eliminated.
SILICON TRANSISTORS plus long -life, industrial rated power
tubes, and all other components provide cool, continuous duty,
operation which result in efficient performance over many years
of reliable operation. The inherent dependability is further en-
hanced by the solid -state power supply used in these stations.
FREQUENCY STABILITY of +0.0002'; - without ovens or heat-
ers. MASTR maintains frequency stability be the exclusive com-
bination of electronic voltage regulation and temperature com-
pensation.
A WIDE RANGE OF OPTIONS is available to provide even more
modes of operation and convenience. These include Solid -state
Channel Guard, h: 3 M1i signalling, repeater- disable, shared repeater
control, cabinet blower, intercom and many others.
,r.e..r �y^^ 7fi^^'+ w�.`°.+ y�"" �'-"' t':, w- v�pp- �a. w..- �e•-^` T�^.."",.:' wr'!^+ w' �. � •°"�- +...- ..r�..w.rt° "•ee+..... �. -- . ...... -•. -.,r
i�
POLE MOUNT (PT)
• INDOOR OR OUTDOOR
INSTALLATION
ce rtified and guarant
OPERATIN a SPECIFICATIONS
MASTR Progress Line BASE STATIONS
For Repeater Operatic
406 -420; 450 -470 MHz
GENERAL
AC POWER INPUT (Watts)
WEIGHT (Approximate): 150 lbs.
DOMESTIC SHIPPING 165 lbs.
COMBINATION SHIPPING (Domestic Pack):
DUTY CYCLE: Continuous duty, per EIA
TEMPERATURE Operable over ambient temperature
RANGE: range —30 to +600C.
( -22PF. to +140
VOLTAGE Electronically controlled, including
REGULATION: transmitter tube filaments
METERING:
DESK MATE — Centralized metering sockets plus Optional
internal Metering Panel
POLE MOUNT — Centralized metering sockets plus Optional
internal Metering Panel
FLOOR MOUNT —35 -70 Watt, centralized metering sockets, plus
2 panel- mounted meters 250 Watt, centralized
metering sockets, plus 4 panel- mounted meters
with space for Optional Line Voltmeter
Centralized metering sockets (receiver and transmitter driver) accomo-
date the General Electric TM -11 Test Set, or a single 0 -3 V DC. 20,000
Ohms /Volt meter may be used
RECEIVER
RF Input Impedance:
RF POWER
OUTPUT
PA POWER
INPUT
STANDBY, INCLUDING
TRANSMIT
MODEL
S ERIES
_ (Watts)
(Watts)
TRANSMIT F
95
95
0.50 }iv
195
195
DT, PT, & VT 55'
12
30
DT, PT, & VT 55'•
25
60
95
220
DT, PT, & VT 55
35
85
116
95
250
DT, PT, & VT 75•"
40
70
179
95-
340
DT, PT, & VT 75
VT 85 (450-470 only)
250
500
176
1100
Requires Option 7616 for operation in certain Operational Fixed (Radio Link) Systems.
FCC Part 95 (Citizens Radio Service) .
• •Requires Option 7611
for operation under
FCC Part 93 (Land Transportation Services)
• Requires Option 7044
for operation under
AC POWER INPUT:
117 VAC,
50/60 Hz. Operable over i 20 %o Input Voltage
Range
DESK MATE POLE MOUNT
DIMENSIONS:
High
30 -3/8"
42"
Wide
14"
25 - 1/2"
23"
12 - 1/2"
Deep
WEIGHT (Approximate): 150 lbs.
DOMESTIC SHIPPING 165 lbs.
COMBINATION SHIPPING (Domestic Pack):
DUTY CYCLE: Continuous duty, per EIA
TEMPERATURE Operable over ambient temperature
RANGE: range —30 to +600C.
( -22PF. to +140
VOLTAGE Electronically controlled, including
REGULATION: transmitter tube filaments
METERING:
DESK MATE — Centralized metering sockets plus Optional
internal Metering Panel
POLE MOUNT — Centralized metering sockets plus Optional
internal Metering Panel
FLOOR MOUNT —35 -70 Watt, centralized metering sockets, plus
2 panel- mounted meters 250 Watt, centralized
metering sockets, plus 4 panel- mounted meters
with space for Optional Line Voltmeter
Centralized metering sockets (receiver and transmitter driver) accomo-
date the General Electric TM -11 Test Set, or a single 0 -3 V DC. 20,000
Ohms /Volt meter may be used
RECEIVER
RF Input Impedance:
50 ohms
Channel Spacing:
25 kHz
Sensitivity:
—100 d6
EIA 12 dB SINAD
0.35 Nv
20 dB Quieting
0.50 }iv
Critical Squelch
0.20mv
Channel Guard Squelch
6 dB SINAD
Selectivity:
—85 dB
EIA 2- Signal
(25 kHz
Channels)
Frequency Stability:
0.0002% from
to +60
(1st Oscillator)
—30
)Modulation Acceptance:
Intermodulation:
±7.5 kHz
i
Spurious and
Image Rejection:
—100 d6
Audio Response:
8
de�emphasis300to3 000HzperEIA.
Audio Output:
5 watts at 3.5 ohms at less
than 5% distortion.
ECR -1394G
200 lbs.
215 lbs.
FCC
FILING
NUMBER
ET -59 -C
ET -59 -C
ET -59 -C
E T -60 -C
E T -60 -C
ET -71 -C
APPLICABLE TO
PART NUMBER
(FCC Rules)
21,89,91,93,95
21,89,91,93,95
21,89,91,93
21,89,91,93
21 ,89,91
21,89,91
FLOOR MOUNT
69"
22"
23"
(70W) (250W)
300 lbs. 400 lbs
320 lbs. 420 lbs.
REMOTE CONTROL COMBINATIONS:
Line -to- transmitter
Terminating Impedance: 600 ohms (optional 150 or 900 ohm)
Line Level: —20 dBm to +11 dBm
Receiver -to -line
Output Level: +11 dBm sine wave (0 VU voice)
Output Impedance: 600 ohms (optional 150 or 900 ohm)
Notch Filter (tone only): 2175 Hz
Line loop impedance. 11,000 ohms (8000 line + 3000 terminatior
(DC only) maximum
Function Module Response
Tone Control (up to 12 Functions): 1050 -2175 Hz
DC Control (up to 6 Functions): 0, f6, ±11, —2.5 ma
TRANSMITTER
RF Power Output:
55 Series
75 Series
85 Series
Output Impedance:
Spurious Emission:
406 to 420 MHz
450 to 470 MHz
Harmonic Emission:
Modulation Deviation
12/25/35 watts
40/70 watts
250 watts f 10%
50 ohms
—85 dB
—90 dB
—70 dB
0 to ±5 kHz
Frequency Stability:
FM Noise:
Audio Response:
Audio Distortion:
±.0.0002% from
—30 to +60
—55 dB
Within +1 and —3 dB of 6 dB oc-
tave pre- emphasis 300 to 3000 Hz
per EIA standards
Less than 5%
MOBILE RADIO DEPARTMENT
GENERAL ELECTRIC COMPANY • LYNCHBURG. VIRGINIA 24502
GENERAL ELECTRIC
12/72 Printed in U.S.A
cu••oo". «♦ ,yr1 a•
Go"A.l 11 1C Cn
' _ P
g A r`
A single -rack Voting Selector is capable of handling up to 6
receivers. The basic rack will be equipped with the necessary
number of receiver modules or dummy panels, an audio
t �` amplifier module and a power supply section with a built -in
4 speaker. Each receiver module has a three position switch
which may be used to over -ride the normal voting function.
A preferred receiver may be seized or an objectionable re
ceiver rejected at the discretion of the operator. Display light .
tell the operator when receivers are unsquelched, selected or
automatically removed from the system due to a failure. All
modules and the power supply section slide out to simplify
servicing. Moreover, the receiver modules are interchangeable.
VOTING SELECTOR RACK
FOR 4 RECEIVERS
SATELLITE RECEIVER IN
WM CABINET
?.
The system is fail-safe in that a defective receiver or a faulty
telephone line can not fool the comparator and tie up the
system. As soon as the trouble is corrected, the line and re-
ceiver are automatically reconnected.
A second Selector rack is connected in parallel with the basic
rack when 7 to 12 receivers are used. It contains only one
to six receiver modules (or blank panels) and a power supply.
The selector racks are normally supplied mounted in a Desk
Mate cabinet. However, they may be individually purchases
for custom mounting.
Single channel Satellite Receivers are supplied in Desk Mate.
Phie Mount, Wall Mount or Floor Mount cabinets. Models are
available with Channel Guard and /or Noise Blanker Options.
Each is furnished with a power supply, a speaker and a choice
of tone or E & M Signalling. An optional standby battery -
powered supply is offered for each receiver. Batteries, whet
supplied, are kept charged by the regular power supply.
With Tone signalling, the Satellite Receiver sends a single 195f
Hz tone down the line whenever its receiver is squelched. Thi
moment the receiver is unsquelched, an electronic switch re
moves the tone and sends the received audio instead. The ton,
is never heard, even when on the line. With 1.1 & M signalling, :
contact closure is used to indicate the presence of audio
: -.�. /FILE /M ;I
SELECTS SIGNAL WITH BEST AUDIO
CAN RESPOND TO 2 dB IMPROVEMENTS
VOTES IN LESS THAN 50 MILLISECONDS
VOTING IS CONTINUOUS
7i'OPERATES OVER AC OR DC LINES
The General Electric Receiver Voting System is capable of
handling any number of Satellite Receivers. However, a
practical system may have 6 to 12 separate receivers controlled
from a dual rack Voting Selector. The type of control used
enables the receivers to be operated over AC or DC telephone
lines, power line carrier and radio or microwave links.
The GE system features selection based on the quality of a
signal as compared to all others appearing at the Voting Se-
lector. It considers each signal for the best Audio Signal-to-
Noise ratio and takes only the most readable message. It votes
in less than 50 ms . . .so fast that not a syllable is lost.
Voting is continuous. The selector constantly seeks an irn-
proved signal and will switch to another receiver ii its audio is
as little as 2 dB better and the change will result in performance
improvement. The selection curve is weighted so that a much
larger difference is required whenever the "voted" receiver and
"better" receiver present very high quality (or very noisy)
signals.
If continuous voting is not preferred, the Selector may be
easily restrapped for other modes of operation. For example,
it may be set up to hold the first acceptably quiet signal for
a preset period, from 5 to 25 seconds before voting again.
It could also be made .to lock -on to any.signal for the duration
of the transmission.
or
9.2 dBd GAIN DB -90
406-512 MHz
BROAD BAND ANTENNA
OMNI OR ELLIPTICAL PATTERN
MODEL DB -410 is a heavy duty, light
weight, high gain antenna for use in
the 406 -512 MHz band. It is suitable
for mounting to the top or on the side
of a tower. Clamps for top mounting
are supplied with the antenna, but
an additional side mount kit (Model
D13-5012) must be ordered for side
mounting.
ELECTRICAL DESIGN. The antenna
is an eight stack collinear array de-
signed to provide high gain, broad
bandwidth and minimum pattern dis-
tortion. A binary cable harness is used
to insure equal in -phase power distri-
bution to all radiating elements. The
unique dual dipole radiating element
assemblies are designed to improve
collinearity, thus increasing efficiency
of the array.
OPTIONAL RADIATION PATTERN.
The DB -410 can be used as an omni-
directional antenna having a gain of
9.2 dBd or as an elliptical pattern an-
tenna having a maximum gain of 10.4
dBd. An omni - pattern is achieved
when alternate dual dipole assemblies
are aligned at a 90° angle with the
others. An elliptical pattern is obtained
when all dual dipole assemblies are
positioned in line (collinear) along the
mast. The antenna can be changed in
the field from one pattern to the other
using only ordinary hand tools.
CONSTRUCTION. Extremely rugged,
the DB -410 will survive winds up to
100 mph. Since it is constructed en-
tirely of metal (except for the cable
harness), with all elements operated
at DC ground, the antenna is almost
immune to lightning damage.
DUAL AND QUAD ANTENNA models
are available which include multiple
independent antennas on a common
mast, each with a separate feed line.
Model DB -410D consists of two DB-
408 antennas; Model DB- 410DL, two
DB -408L antennas; Model DB -4100,
four DB -404 antennas; Model DB-
4100L, four DB -404L antennas. With
these dual and quad antenna models,
the elements of one antenna can be
positioned to provide either an omni
or elliptical pattern without regard to
the other antennas on the common
mast.
DB -410L
(elliptical pattern)
HORIZONTAL. RADIAT ION PAT rERN OF OB 410
( - -) AND Dil 410L ( - - ) WI I H RLSPECI
TO HALF WAVE DIPOLE (0d13 LEVEL)
DB -410 I
(omni pattern)
I
45
U`
1
DB -410L
(elliptical pattern)
HORIZONTAL. RADIAT ION PAT rERN OF OB 410
( - -) AND Dil 410L ( - - ) WI I H RLSPECI
TO HALF WAVE DIPOLE (0d13 LEVEL)
DB -410 I
(omni pattern)
I
45
certified and gu aranteed
OPERATING SPECIFICATIO14S
MULTIPLE RECEIVER VOTIi\�G SYSTEM
SATELLITE RECEIVER with Tone Signalling and Standby Power L: :1 .�,,r'>�^.:'�t
General:
INPUT POWER: 117 VAC ±20%
TEMPERATURE RANGE: —30 to 460
Standby Power Panel:
BATTERY TYPE: 12 V, 4.5 Amp.-Hr., sealed
gel Electrolyte.
Will operate one receiver and tone panel for 16 hours (min)
when fully charged @ +25
Requires 3 days to fully recharge.
Occupies 2 rack units.
Tone & Signalling Panel:
TONE FREQUENCY:
TONE OUTPUT LEVEL:
TONE OUTPUT LEVEL
(Receiver unsquelcfied):
AUDIO OUTPUT LEVEL
OUTPUTIMPEDANCE:
CURRENT:
SWITCH VOLTAGE:
Occupies one rack unit.
1950 Hz 310 Hz
—20 to +11 dBm
< -60 dBm
_20 to +11 dBm
600- mtransformer coupled.
<30ma @10.0V
2 V w/< 100 ms rise time
to unsquelch
Receiver: See Specification sheet on any combination using the same MASTR Professional Receiver
Occupies 3 rack units in a DM, PM or VM cabinet.
Occupies 5% rack units in a WM cabinet
Ca acity of Standard Cabinets for Different Receiver Arrangements
VOTING SELECTOR ° 'r"�� '°
MODEL SERIES:
P
Number of Receivers Accommodated (w /o multi couplers)
Type of
With Tone Panel
With Tone Panel
With E & M Signalling
With E & M Signalling
Cabinet Used
and Standby Pwr. Panel
Only
and Standby Pwr. Panel
Only
Desk Mate (DM)
2
3
3
5
5
Pole Mount (PM)
3
4
8
3
6
more than 8
Floor Mount (VM)
5
1
Wall Mount (WM)
1 1
1
1
VOTING SELECTOR ° 'r"�� '°
MODEL SERIES:
VSD
INPUT POWER:
117 VAC ±10%
CABINET DIMENSIONS:
30.3/8" (H) x 14" (W) x 25 -1/2" D
INITIAL RESPONSE TIME:
< 50 ms from unsquelch to select.
INPUT IMPEDANCE:
600 n
INPUT LEVEL:
> —30 dBm
AUDIO OUTPUT:
5 watts @ 5% distortion, 3.2 .rt
600 -n OUTPUT LEVEL:
Adjustable to +11 dBm
FREQUENCY RESPONSE:
ft dB from 300 Hz to 3 kHz
except for notch frequency.
NOTCH FREQUENCY:
1950 Hz +10 Hz
Each 6- receiver voting selector rack occupies 4 (19 ") rack units
NOTCH DEPTH:
UNSELECTED CHANNEL
REJECTION:
RESET TIME:
FAILURE TIME
(Steady Line Level):
TELEPHONE LINE
REQUIREMENT;
Attenuation:
Frequency Shift:
>40dB
40 dB
10 ms after receipt of tone
from all receivers.
30 seconds nominal.
i (AC or DC)
Allowed input at 1950 Hz must
not be attenuated below —30 dBm
±10 Hz maximum.
OPTIONS OFFERED
7685, 7686, 7687, 7688 & 7689 — For a regular MASTR Professional Local, Remote or Repeater Station. To enable its receiver to vote
as part of the system.
7691 — Deletes cabinet from Voting Selector.
7693, 7694, 7695, 7696, 7793, 7794, 7795 and 7796 — Supplies Receiver, Power Supply, Tone Panel and harness for separate installation.
7681, 7682, 7683, 7684, 7785, 7786, 7787 and 7788 — Supplies Receiver, Power Supply, COR and harness for separate (E & M) installation.
7697 — Cabinet Heater for Battery Panel (WM)
7698 — Cabinet Heater for Battery Panel (PM)
7699 — Antenna multicoupler (4 Rx capability)
5243, 5246, 5247, 5248, 5249, 5250, 5251, 5252, 5253, 5254 and 5255 — Supplies panels for multi station Radio Control Center (right
turret) with lights and switches in parallel with Voting Selector.
5244, 5245 — Supplies kit to enable DESKON, TCC or Radio Control Center to connect to a Voting Selector.
5240, 5241, 5242 — Cable assembly to connect Voting Selector to RCC equipped with paralleled switch /light panel.
MOBILE RADIO DEPARTMENT
GENERAL ELECTRIC COMPANY 'i LYNCHBURG. VIRGINIA 24502
G
ENERAL ELECTRIC
ECR•1584B
8/71 Printed In U.S.
r
16
Figure 1
RATED PER EIA STANDARDS
I Figure 2
SIDE MOUNTING
When the DB -410 and DB.410L antennas are mounted to
the side of a tower the horizontal radiation pattern neces-
sarily becomes distorted. The patterns shown below indi-
cate the typical pattern shape of the antenna side mounted
on a tower with an 18" face using the DB -5012 Side Mount
Kit. The patterns for 12" and 24" towers will be similar.
iq
i' • I i
DB -410 (Omni) mounted on side of tower
DB -410L elements pointed toward tower
DB -410L elements broadside to tower
The DS -5012 Side Mount Kit positions the antenna approxi-
mately 16 " from the tower and consists of an upper sway
brace, lower bracket (both galvanized) and the necessary
hardware for attaching the bracket to round tower members
up to 3" OD, or angular members up to 2" on a side
Other size clamps can be supplied on special order.
ORDERING INFORMATION
Model Frequency
DB -410 Antenna, omni- directional Specify model
DB -410L Antenna, elliptical and exact
DB -410D Dual Antenna, omni - directional frequency (or
DB -41ODL Dual Antenna, elliptical frequency
DB -4100 Quad Antenna, omni- directional range)
OB -4100L Quad Antenna, elliptical
DB -5012 Side Mount Kit
ANTENNA GAIN VS. FREQUENCY
12 dEl -
i
11 dB - * 4
-10 -8 -6 -4 -2 fo +2 +4 +6 +8 +10
Frequency in MHz
The curves illustrate the gain of the DB -410 and DB -410L
across a 20 MHz bandwidth. Maximum gain of 9.2 dBd
(DB -410) and 10.4 dBd (DB -410L) occur at the mid -band
frequency (fo) of each frequency range. The gain of the
D6-410L is shown at the pattern maximum in the hori-
zontal plane.
ELECTRICAL
DATA
Frequency Ranges:
. . . . .
. . . .406.420 MHz
. . . . .
. . . .450 -470 MHz
. . . . .
. . . .470 -490 MHz
. . . . .
. . . .490 -512 MHz
Bandwidth . . . . . .
. . . Same as above
VSWR . . . . . . . .
. . . 1.5 to 1 or less
Nominal impedance . . .
. . . . . 50 ohms
Gain (over half wave dipole) .
. . . . See Figure 2
Rated power input . . . .
. . . . . 250 watts
Vertical pattern beamwidth
(half power points) . . .
. . . . . . . 7°
Decoupling between antennas
(dual and quad models) .
. . . 30 dB minimum
Lightning protection . . .
. . . . Direct ground
Standard Termination: Captive
Type N male attached to
end of flexible lead. Other fittings
are available on special
order.
MECHANICAL DATA
Materials:
Mast — upper . . . 6061 -T6 Aluminum
1 OD with -?�" to 1 / 8 " wall
Mast — lower . . . . 6061 -T6 Aluminum
2" OD with 1 / 8 " to 1 / 4 " wall
Radiating elements . . . 6061 -T6 Aluminum
3 /a" OD with .058" wall
Mounting clamps . . . . . . Galvanized steel
Maximum exposed area
(flat plate equivalent) . . . . . . 3.33 sq. ft.
Wind rating:*
Survival (w /o ice) . . . . . . 100 mph
Survival ( / radial ice} . . . . 70 mph
For 3 dB degradation 60 mph
Lateral thrust at 100 mph
(40 psf flat equivalent) .. . . . . . 133 lbs.
Bending moment at top clamp
at 100 mph (40 psf flat
equivalent) . . . . . . . . . 916 ft. lbs.
Overall length (450 -470 MHz) . . . . 18 ft. 1 in.
Net weight (w /clamps) . . . . . . . 34 lbs.
Shipping weight (w /clamps) . . . . . . 58 lbs.
Mounting Clamps (DB 365) are supplied with the antenna
and fit round tower members up to 23/ OD, angle
members up to 2 ". Other size clamps can be furnished
on special order.
'Top mounted antenna Wind rating is Rrhatly increw ;cd when
antenna is side mounted with appropriate side mount kit.
NOTE: The rnechanlcal sper.lficatluna ato ellghtly dogrddod lot tho
antenna covering tho 406 -420 MHz band.
f I SP7t
Pt <r+t rn trt a n. 12-7(
• w
i
FOAM HELIAX CABLE
r
These transmission line assemblies use low loss, 50 - ohm, Heiiax coaxial cable with foam dielectric and a
corrugated copper outer conductor. These highly reliable assemblies, available with or without the protective
polyethylene jacket, provide a combination of strength, flexibility and efficiency. Cable can be furnished in
factory- tested, sealed and inspected assemblies or may be ordered in bulk with any of a full line of
connectors as separate items.
TYPE N FEMALE
01"
i
I
MALE UHF
PL -259
TYPE UHF MALE
MALE UHF
PL 259
TYPE N FEMALE
v
r
MALE UHF
PL 259
TYPE UHF MALE
f!
ti
MALE UHF
PL 259
O 111111111im
__ '1 /2` DB-2044
I/ DB -2043 1 / 2 " DB -2053 z / DB -2046 1 / DB -2054
7 / e " DB•2045 7 /8" DB -2055 is / DB -2067 7 / 8 " DB 2056 I
A complete transmission line assembly, as pictured above, includes: (1) the coaxial cable, (2) connector to the antenna,
(3) an 8 foot flexible lead with connectors including, (4) a PL -259 (male UHF) to connect to the radio equipment, (5) Installa-
tion wires for attaching the cable to the tower,' (6) a roll of polyethylene tape and, (7) a tube of silicone.
The coaxial cable is available in both t / >" and ' /N" sizes (see back side of sheet for electrical and mechanical details), each
size with or without the protective jacket, and with either a UHF male connector (PL -259) or a Type N f-male connector
(UG•1186) at the antenna end of the transmission line assembly. These various combinations are illustrated abovr; pler.e
order by model number and cable length. QyRegistered trademark of Andrew Corporation
*Stainless steel hanger kits, wraplock and hoisting grips are also available as separate items. f
i
97
V
1
10
0.1
To 100 1000 10000
FREQUENCY IN MEGAHERTZ
10 ., ' 10
FREQUENCY IN MEGAHERTZ
i
CABLE
1 / FHJ4.50
7 / 8 " FHJ5 -50
1 / FHJ7.50
Model
Number
i DB -2043
DB -2053
I
1 DB -2044
DB -2054
DB -2045
DB•2055
DB -2046
DB -2056
DB•2067
ORDERING INFORMATION
I
Model
43 MHz 72 MHz
, Ili•
.48
Number
Cable Type
.25
Top Connector (Antenna End)
DB -2043
1 /2" Copper Cable — plain
■
Female N j
D13-2053
1 /2" Copper Cable — plain
(FH4 -50B)
Male UHF
B rill
1 /2" Copper Cable -- jacketed
(FHJ4 -50B)
Female N
I DB 2054
i'
(FHJ4 50B)
Male UHF
i
DB -2045
7 /8" Copper Cable — plain
(FH5 -50A)
Female N
I
DB -2055
�
_
Male UHF
DB -2046
7 /a" Copper Cable — jacketed
(FHJ5 -50A)
Female N
DB -2056
3 /8" Copper Cable -- jacketed
(FHJ5 -50A)
Male U11F
I DB -2067
1 / Copper Cable — jacketed
(Ft -50)
Female N
��I:11
III
■
■■�
i■■■
ON
■
..q
11
i
■
■11
1111■
1111111■
111
To 100 1000 10000
FREQUENCY IN MEGAHERTZ
10 ., ' 10
FREQUENCY IN MEGAHERTZ
i
CABLE
1 / FHJ4.50
7 / 8 " FHJ5 -50
1 / FHJ7.50
Model
Number
i DB -2043
DB -2053
I
1 DB -2044
DB -2054
DB -2045
DB•2055
DB -2046
DB -2056
DB•2067
SHIPPING INFORMATION
Lengths of up to 500 feet of 1 / cable, or up to 300 feet of z / cable are shipped in disposable cartons. Lengths
i
in excess of these are shipped on non - returnable reels (no deposit required). The 1 12" and 7 / traw mis'Jon line I
assemblies are shipped with connectors attached and with installation materials included in the package.
I �
Nru .Tr r , Ire 11 A 12.7
ATTENUATION IN
ORDERING INFORMATION
I
Model
43 MHz 72 MHz
152 MHz 454 MHz
.48
Number
Cable Type
.25
Top Connector (Antenna End)
DB -2043
1 /2" Copper Cable — plain
(FH4 -508)
Female N j
D13-2053
1 /2" Copper Cable — plain
(FH4 -50B)
Male UHF
1 DB -2044
1 /2" Copper Cable -- jacketed
(FHJ4 -50B)
Female N
I DB 2054
1 / Copper Cable — jacketed
(FHJ4 50B)
Male UHF
i
DB -2045
7 /8" Copper Cable — plain
(FH5 -50A)
Female N
I
DB -2055
7 /e" Copper Cable — plain
(FH5 -50A)
Male UHF
DB -2046
7 /a" Copper Cable — jacketed
(FHJ5 -50A)
Female N
DB -2056
3 /8" Copper Cable -- jacketed
(FHJ5 -50A)
Male U11F
I DB -2067
1 / Copper Cable — jacketed
(Ft -50)
Female N
SHIPPING INFORMATION
Lengths of up to 500 feet of 1 / cable, or up to 300 feet of z / cable are shipped in disposable cartons. Lengths
i
in excess of these are shipped on non - returnable reels (no deposit required). The 1 12" and 7 / traw mis'Jon line I
assemblies are shipped with connectors attached and with installation materials included in the package.
I �
Nru .Tr r , Ire 11 A 12.7
ATTENUATION IN
DECIBELS PER 100 FT.
— SPECIFIC FREQUENCIES
35 MHz
43 MHz 72 MHz
152 MHz 454 MHz
.48
.53 .70
1.06 1.98
.25
.28 .37
0.57 1.10
.17
.19 .25
.39 .79
Minimum
Bending
Radius
(Inches)
5
5
10
10
20
955 MHz
3.10
1.80
1.33
Weight
Per
Foot
(Pounds)
.125
.185
.32
.42
1.35
MECHANICAL
DATA
Outer
Conductor
Outer
Major Diameter
Diameter
(Inches)
Over Jacket
Size
O.D.
(Inches)
3 /
.540
1/
Y2 "
"
.540
.620
7/
.980
7/
7 "
a
.980
1.090
15 /
1.830
2.000
Minimum
Bending
Radius
(Inches)
5
5
10
10
20
955 MHz
3.10
1.80
1.33
Weight
Per
Foot
(Pounds)
.125
.185
.32
.42
1.35
CIT� OF SANFORU
MEMORANDUM
From: CITY MANAGER Date August Z' 1976
To: Mr. Bob Miller
Subject: Request t put an antenna on city water tank at 13th
,and French
B.)b:
A state agency has asked if they can mount an antenna, eith feet
t can our watern tank. We already have two of :nur therer.
Questinn to you, can ycu tell from the attached specs if this
will be OK frk m the radi- operr3tion end to h :ve this rintenna and
repeaters on the same tower with ours ? ?? ? ?? Let me kn. wh_it you
think.
Thanks, B b. Pete
CITlJ OF SANFORU
MEMORANDUM
From: CITY MANAGER
Date ilugust � 2 i, 1976
To City Att . ruey
Subject: Review (if ier,se f -r Fntenn— on city water tr wer
Vern:
Attnehee? is Ii request f: r the Tep= �jrtraeut >f Lr,ty Eng ,rcement t -
m unt k.n =ntf3nzlr n ;cur w t::nk at 1 �;t h ,- n( , ' French. They have
sent ., sttindard lezise f:;rn.
Please review r)nd see if y -u think the 1e: se will be (. -K. I h.>ve
.31s t.btaiued 'i c..;Py :f their specs r.nd sent them to B b Hiller to
review t; see if their sign! will interferr with ,
What d,. y:,u think ab .ut their lease form ? ? ? ? ? ?? Will it indemnify
the City ? ? ?? They wi11 have a couple of ctjbents on the graund as
well as the antenna on the ti_wer as this is to be a repeater station.
Pete
r
si
For the file:
8 /27/75
I talked with Mr. Bob Miller and he said that he felt there
would be not trouble with the additional antenna on the water tank.
He said to be sure and safe guard the City to require they be
responsible to correct any bleeding over or any interferance to
the City's signals and that the state be required to correct the
trouble. He said there would be a way outside chance of harmonics
causing this but it could be corrected.
dl2ieeers
August 30,1976
Mr.W.E.Knowles
City Manager
City Of Sanford
Dear Mr.Knowles:
AUTHORIZED ' INDEPENDENT
CSC No. 417
Mobile Communication Service Center
2619 Off, 2),4w - ;D,F,e 322_0352 - S
41 0'td 7loaEd4 32771
I have looked over the specifications from General Electric
on antenna & repeaters.From specifications furnished I see no
reason for any problems.
However I suggest in granting the request,that if problems are
created from installation of this equipment,the agency at their
expense will correct it or remove the equipment,to my knowledge
we are not having any problems at this time.
Milers
2619 Orlando Drive