Transcript Document 7768870

PCARS REPEATERS
Presentation
“Everything you wanted to
know but were afraid to ask”
5/26/2016
PCARS Repeater Presentation
What is a “REPEATER”
A device that receives, amplifies, and
retransmits a signal. Consists of a
transceiver (transmitter and receiver) and
is used to boost signal levels to extend the
system distance.
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PCARS Repeater Presentation
Typical PCARS Repeater
TO ANTENNA
Duplexer
RX FILTER
146.250
TX FILTER
146.850
Rx
Input
Tx
Output
RCVR
XMIT
Tx Audio
Rx Audio
COS (Squelch)
CONTROL
CIRCUITS
COR (PTT)
Phone Line
120VAC
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12 VDC
POWER
SUPPLY
12 VDC
PCARS Repeater Presentation
CAT-1000
Repeater
Controller
What is a Duplexer?
A duplexer is a device which allows a
transmitter operating on one frequency
and a receiver operating on a different
frequency to share one common
antenna with a minimum of interaction
and degradation of the different RF
signals.
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PCARS Repeater Presentation
The Repeater Duplexer filters
Also called Cavity Filters
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PCARS Repeater Presentation
How are repeaters controlled
•
•
•
•
Over the air on the Repeater’s frequency
By the Telephone Line - Manually
By a Telephone Line with Modem and S/W
By a Local Computer via a Serial Port.
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PCARS Repeater Presentation
PCARS Repeater Controllers
All PCARS Repeaters use controllers made by:
Computer Automation Technology
The 146.61 and 146.85 use the CAT-1000 controller
The 444.425 uses the CAT-300 controller
Refer to Computer Automation Technology their website for more info
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PCARS Repeater Presentation
CAT-1000 Controller Timers
There are 19 total timers that can be set
You need to only remember the following four
• ID Timer – 10 Minutes
• Talk Timer- 4 Minutes
(Resets on receiver squelch)
• Phone-Patch Tx - 30 Second
• Failsafe Timer – 10 Minutes (Resets on receiver squelch)
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PCARS Repeater Presentation
146.01/61 Repeater
Frequency
Transmit - 146.610 MHz
Receive - 146.010 MHz
Holmes Medical Center
Location:
(8th Floor Radio/Pager Room)
Manufacture:
Configuration:
Antennas:
Output Power:
100% Emergency Power
Phone-Patch
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VHF Engineering (Hybrid)
2 RCVR, 1 XMTR
2 Husler G7-144 (7dB Gain)
~ 50-70 watts EIRP
YES, Hospital Power
YES
PCARS Repeater Presentation
146.61 Repeater Coverage
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PCARS Repeater Presentation
146.61 Repeater Site
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PCARS Repeater Presentation
One of two 146.61 Repeater Antennas
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PCARS Repeater Presentation
146.25/85 Repeater
Frequency
Location
Manufacture
Configuration
Antennas
Antenna height
Output Power
Emergency Power
Phone-Patch
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Transmit - 146.850 MHz
Receive - 146.250 MHz
Harris Corp.400 Ft Tower Site
Hi Pro Model R1
1 RCVR, 1 XMTR
DB-228 (~10 dB Gain)
328-370 feet (42 feet long)
~ 100 watts EIRP
Yes (Battery and Generator)
Yes
PCARS Repeater Presentation
The OLD GE MASTR II Repeater
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PCARS Repeater Presentation
Inside the Mastr II Repeater
CAT-1000
Controller
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PCARS Repeater Presentation
146.85 Repeater Site
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PCARS Repeater Presentation
146.85 Repeater Site
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PCARS Repeater Presentation
146.85 Repeater Site
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PCARS Repeater Presentation
Harris 400 Foot Tower
PCARS Antenna
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PCARS Repeater Presentation
400 foot Tower
PCARS
Antenna
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PCARS Repeater Presentation
Old Block House
New Block House is much larger
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PCARS Repeater Presentation
PCARS Antenna Damage
from Hurricane
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PCARS Repeater Presentation
New Antenna gets Installed
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PCARS Repeater Presentation
PCARS Helping Antenna Crew
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PCARS Repeater Presentation
444.425/444.925 Repeater
Frequency
Location
Manufacture
Configuration
Antennas
Antenna height
Output Power
Emergency Power
Phone-Patch
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Transmit – 444.425 MHz
Receive – 449.425 MHz
BellSouth Building (Rialto)
ICOM RP-4020
1 RCVR, 1 XMTR
Diamond X-510 (~10 dB)
~ 125 feet
80-100 Watts EIRP
YES (Battery and Generator)
NO
PCARS Repeater Presentation
444.425 Repeater site
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PCARS Repeater Presentation
Antenna Location on Roof
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PCARS Repeater Presentation
ICOM RP-4020 Repeater
Type:
Amateur UHF repeater
Frequency range:
430-450 MHz
Mode:
FM
RF Power output:
10, 25 or 50 W depending on version
Sensitivity:
N/A
Selectivity:
N/A
Image rejection:
N/A
Voltage:
13.8 VDC or mains
Current drain:
RX: Max 1.2 A, TX: Max 7, 10 or 17 A depending on
version
Impedance:
50 ohms
Dimensions
(W*H*D):
425*149*368 mm
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PCARS Repeater Presentation
444.425/ 449.425 Repeater
ICOM RP-4020
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PCARS Repeater Presentation
Using the Phone Patch
• All PCARS Repeaters with Phone-Patches work
the same and have the same basic
programming.
• All Speed-Dial numbers are programmed into
both repeaters
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PCARS Repeater Presentation
Bring up the Phone-Patch and
Dialing the number
Identify by saying
“ This is (Your Call) for the W4MLB Auto-Patch
Un-key and listen for the Beep – Immediately key your Tx and dial the
access code plus the seven digit telephone number (10 digits)
Listen for the number to be verified and them dialed. If the number is
wrong, enter the pound tone as soon as the number is announced. The
repeater will cancel the dial and you may re-dial the number.
When the party answers, you should tell them they are on an Auto-Patch
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PCARS Repeater Presentation
Terminating the Phone-Patch
Terminate the patch by pressing “ # ” and
listen for the voice asked for you to ID.
Respond by saying “ This is (YOUR CALL)
clear the Phone-Patch.
Listen for the beep to signify termination of
the patch and you have finished
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PCARS Repeater Presentation
Other Info
Talk time is limited to less than 4 minutes
per Phone-Patch call
You must transmit every 30 second to keep
the patch active
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PCARS Repeater Presentation
PCARS Auto-Patches
• All PCARS Repeaters have controllers With
Auto-patches
• All Auto-Patches work the same
• Only the 146.610 and 146.850 have available
phone connections
• Auto-Patch is for Club Members Only
• Only Local calls can be made
• Calls are limited to 4 minutes
• Auto-Patch has Speed-Dial option
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PCARS Repeater Presentation
Public Service Numbers stored
in the Auto-Dialer
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•
•
•
•
•
•
•
•
•
911
901
902
903
904
905
906
907
908
909
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FIRE, POLICE, AMBULANCE (Emergencies only)
Melbourne Police Dept.
Palm Bay Police Dept.
Indialantic Police Dept.
Indian Harbor Beach Police Dept.
Melbourne Beach Police Dept.
Satellite Beach Police Dept.
Brevard County Sheriff's Dept.
Florida Highway Patrol.
United States Coast Guard.
PCARS Repeater Presentation
Using Speed-Dial Numbers
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PCARS Repeater Presentation