Peninsula engineering solutions Rf-2000e User manual

no buildings no roads no power lines

just great reliability.

World Headquarters

39 Grand Canyon Lane

San Ramon,

CA 94583 USA

President

Frank Martens

Phone

925.901.0103

Fax

925.901.0403

Peninsula Engineering

Solutions, inc. may

change speciﬁcations as

necessary to meet

industry requirements. Website www.peninsulaengineering.com Email [email protected]

Applications

• Low-cost, highly reliable 2 GHz microwave through repeater for extending range of or clearing obstructed microwave radio paths.

• Excellent performance with analog, digital, or video microwave radios; channel capacity to 1200 FDM, 1 DS3, 45 Mb/s PCM,

34 Mb/s PCM.

• Compatible with any manufacturer’s 2 GHz radio terminal.

• Solar power compatible -- economical in thin routes and remote locations.

Features

• Two RF output power level available: +24/+28 dBm analog, +18/+22 dBm digital.

• Power consumption only 2.2 amperes at 12 Vdc for regular-power duplex operation.

• Solar powered, ac powered, or powered by primary cells.

• Compact and lightweight -- ideally suited for remote sites that do not have access roads or commercial power.

• Environmentally protected aluminum, weathertight, lockable cabinet. No extra environmental shelter required in most installation.

Suitable for use at unimproved sites anywhere in the world -- Alaska to Saudi Arabia.

• Internally protected duplex, frequency diversity, and three-way or “Y junction” configurations available.

• Only one active element per channel, the internally redundant linear ampliﬁer.

• AGC/ALC provided to correct input fades and reduce overload.

• Maximum gain can be field-adjusted for easy fine-tuning.

• In the case of single duplex conﬁguration, ampliﬁers can be replaced without disrupting service.

• RMAS-110 Alarm system (optional) can remotely monitor repeater.

• Equipped with directional couplers for in-service RF output power measurements.

• No frequency conversion -- received signal is ﬁltered, ampliﬁed, and re-radiated.

• Very reliable, greater than 85,000 hours MTBF for duplex.

• Available as a self-contained RF repeater for use with customer-furnished antenna and power equipment or as a complete package

including repeater, antenna, solar electric panels, battery charger, and batteries. 01

RF-2000E/EW Repeater

Microwave Repeater Systems

RF-2000E/EW Repeater

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Table of Contents

APPLICATIONS

FEATURES

TECHNICAL SUMMARY

1. GENERAL

2. FUNCTIONAL DESCRIPTION

Basic Repeater

Amplifiers

Directional Couplers

AGC/ALC Adjustment

Power Supply

3. ALARMS

4. LICENSING

5. ORDERING

6. INSTALLATION

General

Power Wiring

DC Power

7. TESTS

General

Test Equipment

Application of Power

Antenna Isolation Measurement

Antenna Orientation, AGC/ALC set

and Output Measurement

RX/TX Pad Installation

8. MAINTENANCE

Routine Maintenance

Administration Requirements

Trouble Location

Amplifier Replacement, Out of Service

Amplifier Replacement, In Service

Return Procedure

APPENDIX A

Antenna System

1. GENERAL

• This Section provides information for the Peninsula

Engineering RF-2000E, RF-2000EW, RF Repeater Assembly;

hereinafter referred to as the RF-2000E /EW. The RF-2000E

/EW may be used with any manufacturer’s 2.0-GHz radio

operating in the 1.7-2.3 GHz frequency range to provide an

intermediate repeater.

• The RF-2000E /EW assembly is an RF through repeater

designed for remote loca-tions. No tuning is required, and

the use of highly reliable components and minimum ac-tive

circuitry eliminates most subsequent maintenance. The

repeater assembly consists of an equipment mounting panel,

contained in a aluminum, weatherproof cabinet. If desired,

the equipment mounting panel only may be mounted in a

standard 19-inch (483-mm) rack, or the complete assembly

may be wall-mounted. In most applications however, the

complete assembly is pole- or tower-mounted. Front views

of the repeater are shown in Figures 1.1 and 1.2.

• In addition to the RF-2000E /EW re-peater assembly,

Peninsula Engineering offers accessory equipment consisting

of antennas and mounting hardware, coaxial cable, batteries

and hardware, and an ac power supply with an integral

standby battery. The recommended antennas are parabolic

grid, solid or high performance types chosen per application.

2. FUNCTIONAL DESCRIPTION

Basic Repeater

• The RF-2000E/EW duplex repeater uses internally redun-

dant ampliﬁers for transmission in each of two directions.

Each ampliﬁer is powered by two separate battery supplies

for added reliability. Bandpass ﬁlters and circulators,

which form a duplexer network, direct the received signals

to the amplifiers and combine the amplifier outputs with

the received signals to a common antenna port for transmis-

sion in each direction (see Figures 2.1~2.6).

• The received signal from “A” antenna, identiﬁed as fre-

quency “f1,” connected through N(male) to N(male) jumper

supplied, enters the repeater panel via the panel mounted

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type N (f) connector and is then fed to a branching circula-

tor. From the circulator, the f1 signal is passed to an isolator

and then to the f1 receive bandpass ﬁlter. The bandpass ﬁlter

passes the f1 signal to a second isolator and (optional) f1

receive pad and then to amplifier A1. The (optional) delay

equalizer assembly just before the input port of the ampliﬁer

will route the signal via a circulator to delay equalizer

which will correct the group delay within the speciﬁcation.

The signal then is routed back to the main route via the

circulator into the ampliﬁer. The amplified f1 signal passes

to the (optional) f1 transmit pad. From the transmit pad,

the f1 signal then passes the isolator and the f1 transmit

bandpass ﬁlter to the branching circulator and then to the

panel mounted type N(female) connector for connection to

“B” antenna through the second N(male) to N(male) jumper.

• In the other direction, the received signal from “B” antenna,

identiﬁed as frequency “f2,” enters the repeater panel via the

coax jumper to the panel mounted type N(female) connector

and is then fed to a branching circulator. From the circulator,

the f2 signal is passed to an isolator and then to the f2 receive

bandpass ﬁlter. The bandpass ﬁlter passes the f2 signal to

a second isolator and (optional) f2 receive pad and then to

amplifier A2. The (optional) delay equalizer assembly just

before the input port of the amplifier will route the signal via

a circulator to delay equalizer which will correct the group

delay within the specification. The signal then is routed back

to the main route via the circulator into the ampliﬁer. The

ampliﬁed f2 signal passes to the (optional) f2 transmit pad.

From the transmit pad the f2 signal then passes through an

isolator and the f2 transmit bandpass ﬁlter to the branching

circulator and then to the panel mounted type N(female)

connector for connection to “A” antenna through the coax

jumper supplied.

• Receive pads reduce the repeater re-ceive signals to

approximate the recommended input level. The transmit pads

reduce the output signal levels of the repeater to prevent

overloading of the terminal receiver in a short path. Pads are

mounted on input and output of amplifiers. Table 2.1 shows

the nominal input and output power level for single channel

Level 1 duplex configuration. Detail information for other

configurations is in Technical Summary at the be-ginning of

this manual.

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RF-2000E/EW Repeater

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RF-2000E/EW Repeater

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Table 2.1

RF-2000E/EW Duplex Nominal Power Level

(Power Level 1)

Modulation Nominal Nominal

Input Output

dBm dBm

FM/FSK/MSK -21 +24

4PSK/QPSK/OQPSK -23 +22

8PSK -25 +20

16 QAM -27 +18

QPR3/9QPRS -26 +19

QPR5/25QPRS -26.5 +18.5

QPR7/49QPRS -27 +18

QPR9 -28 +17

Ampliﬁers

• In digital radio applications, in order to maintain linearity

over the entire signaling envelope, the amplifiers operate

at a reduced average power level to meet the output power

level requirement as shown in Table 2.1. Each ampliﬁer is

mounted on the front of the panel to allow easy AGC/ALC

adjustment and amplifier replacement in the field. Necessary

information for ordering spare or replacement ampliﬁers is

provided in Part 5, Ordering.

Directional Couplers

• Directional couplers, built into the ampliﬁers, provide signal

monitor points (Figure 2.3). These allow in-service measure-

ment of transmit output power. The monitor points are

calibrated to indicate actual RF out-put power at the antenna

connector. When measuring transmit power, the power

meter reading obtained, plus the loss (in dB) marked at the

ampliﬁer monitor point, minus the branching loss (in dB)

marked on the panel, equals actual transmit output power.

For example:

(1) Power meter indication = +5.0dBm

(2) Loss marked at monitor = 18.2dB

(3) Branching Loss = -2.2dB

(4) Output Power = +21.0dBm

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AGC/ALC and Max.Gain Adjustment

• There are two ﬁeld-adjustable potentiometers on the

amplifier (shown in Figure 2.7). The repeater Output level

and Nominal gain is adjusted by AGC/ALC potentiometer.

The other potentiometer is for Maximum Gain adjustment,

which is left at minimum attenuation by the factory. If for

any system requirement, the maximum (linear) gain of the

repeater can be reduced by this potentiometer. However,

any reduction of the maximum gain of the repeater will also

reduce the AGC/ALC range of the repeater by the same

amount. For various options of repeaters, with the same

operation point, input/output power level, they will have the

same AGC dynamic range. However, more complex options

have higher branching loss, hence less maximum available

gain. Therefore they will have less downfade reserve, dB to dB.

Power Supply

• The only active elements in the RF-2000E /EW assembly

are the ampliﬁers which operate from a +13.5 Vdc source.

Current requirements are 1.0 Amperes per amplifier for

Power Level 1 frequency channel and 1.4 Amperes per

ampliﬁer for Power Level 2 frequency channel. The repeater

assembly may be powered from solar panels/batteries,

primary cells only, or from an ac/dc supply with standby

battery (shown in Figures 2.8 and 2.9). 3A fuses are used

for Power Level 1 and 4A fuses are used for Power Level 2.

• Storage batteries and solar cell panels are selected on

the basis of the average insulation and temperature range

at the site. The batteries are engineered to provide the

required reserve capacity across the temperature range and

during periods when the output from the solar panels is low

or not available. Controllers are used with the solar panels

to efficiently charge the batteries without overcharging.

Peninsula Engineering can determine the solar and battery

capacity. The location of the site should be speciﬁed when

requesting assistance.

• In areas where commercial power is available, an ac power

supply can be provided. Although one ac power supply will

provide ample current to power all ampliﬁers, dual AC power

supplies are recommended for higher reliability. The dual

AC power supply system also contains two charge controllers

and two sets of standby battery to provide power during

AC power failures. Each battery is float charged while the

power supply is on and has 100 amp-hours as standard

capacity. Additional batteries can be purchased if the system

requirement needs.

• In locations where commercial power is not available and

solar panel charging is impractical, primary cell batteries

capable of powering an RF-2000E/EW repeater in excess of

a year are available. In such applications, the battery instal-

lation should be given an environmental shelter according to

the manufacturer’s recommendations.

3. ALARMS

• The RF-2000E/EW repeater can be provided with an

optional alarm system to remotely monitor the repeater site.

Conditions that are typically monitored are listed below:

Standard Telemetry:

a) A and B Battery Voltage

b) Battery Temperature

Standard Trip Points:

c) A and B Battery Major Alarm (2)

d) East and West RF Output Low (2)

e) Amplifier Alarm

f) Cabinet Door Open

g) 6 Each User Points, Strappable:

Closed or Open = Alarm

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4. LICENSING

FCC ID: EK2A101

5. ORDERING

• The RF-2000E/EW RF Repeater As-sembly is ordered by

specifying the system model number RF-2000E/EW-XX

(Tables 5.1, and 5.2). Spare ampliﬁers and in-service

ampliﬁer change kit (Ref. Sec. 8.07) are listed in Table 5.3.

Attenuators are provided by specifying their part numbers.

Transmission engineering must be completed before ordering

because the necessary attenuator values are determined from

the path calculations. Part numbers are listed in Table 5.4.

• When doing the initial system layout of a radio hop which

includes a RF-2000E/EW RF Repeater Assembly, several fac-

tors must be considered prior to ordering, to ensure correct

antenna connections.

(a) Terminal transmit-Repeater receive frequencies (F1

and F2 or F1, F3 and F2, F4).

(b) Physical mounting of RF-2000E/EW repeater on tower

(or crossarms) in relation to mounting of antennas.

The RF-2000E/EW repeater may be factory-tuned so that f1

RCV (LEFT) associates with the lower of the two frequencies

and f2 RCV (RIGHT) with the higher; or vice versa. By com-

paring the factors listed above, correct antenna/coaxial

feeding connections will result. The equipment order must

specify the f1 and f2 frequencies. For example:

f1 RCV=2204MHz and f2 RCV=2245MHz

f1 RCV=2245MHz and f2 RCV=2204MHz

Table 5.1

RF-11000 RF Repeater Ordering Information

Channel Bandwidth : 40 MHz

Standard Assembly Part Number Description Frequencies (MHz)

RF-11000-51 900-0211-51 Duplex F1, F2

Delay Equalized

RF-11000-52 900-0211-52 Duplex, Frequency Diversity F1, F2, F3, F4

Delay Equalized

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Table 5.1

RF-2000E RF Repeater Ordering Information

Standard RF-2000E Repeater Assemblies

Frequency Range: 1.7~2.3 GHz

Standard Assembly Part Number Description Frequencies (MHz)

RF-2000E-01 900-0210-01 Duplex, F1

All Directions Power Level 1 F2

Maximum loading 1200 FDM

channels, 672 PCM channels

or a color video channel

RF-2000E-02 900-0210-02 Duplex, Frequency Diversity F1 F3

F2 F4

RF-2000E-03 900-0210-03 One-Way F1

Power Level 1

RF-2000E-21 900-0210-21 Duplex, F1

One Direction Power Level 1 F2

One Direction Power Level 2

RF-2000E-22 900-0210-22 Duplex, Frequency Diversity F1 F3

One Direction Power Level 1 F2 F4

One Direction Power Level 2

RF-2000E-41 900-0210-41 Duplex, F1

All Directions Power Level 2 F2

RF-2000E-42 900-0210-42 Duplex, Frequency Diversity F1 F3

All Directions Power Level 2 F2 F4

RF-2000E-43 900-0210-43 One-Way F1

Power Level 2

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Table 5.2

RF-2000EW RF Repeater Ordering Information

Standard RF-2000EW Repeater Assemblies

Frequency bands : 1.7~2.1ghz [1.9~2.3 Ghz]

Standard Assembly Part Number Description Frequencies (MHz)

RF-2000EW-11 900-0212-11, Duplex, Delay Equalized F1

[RF-2000EW-14] [900-0212-14] All Directions Power Level 1 F2

Maximum loading 1200 FDM

channels, 672 PCM channels

or a color video channel

RF-2000EW-12 900-0212-12, Duplex, Frequency Diversity F1 F3

[RF-2000EW-15] [900-0212-15] Delay Equalized F2 F4

RF-2000EW-13 900-0212-13, One-Way, Delay Equalized F1

[RF-2000EW-16] [900-0212-16] Power Level 1

RF-2000EW-31 900-0212-31, Duplex, Delay Equalized F1

[RF-2000EW-34] [900-0212-34] One Direction Power Level 1 F2

One Direction Power Level 2

RF-2000EW-32 900-0212-32, Duplex, Frequency Diversity F1 F3

[RF-2000EW-35] [900-0212-35] Delay Equalized F2 F4

One Direction Power Level 1

One Direction Power Level 2

RF-2000EW-51 900-0212-51, Duplex, Delay Equalized F1

[RF-2000EW-54] [900-0212-54] Delay Equalized F2

All Direction Power Level 2

RF-2000EW-52 900-0212-52, Duplex, Frequency Diversity F1 F3

[RF-2000EW-55] [900-0212-55] All Directions Power Level 2 F2 F4

RF-2000EW-53 900-0212-43, One-Way, Delay Equalized F1

[RF-2000EW-56] [900-0212-56] Power Level 2

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Table 5.3

Spare/Replacement Ampliﬁer Ordering

Description Stock Number

Ampliﬁer, Power Level 1 090-0193-01

Ampliﬁer, Power Level 2 090-0194-01

Sparing Kit 091-0005-01

Table 5.4

Coaxial Attenuator

Stock Number Attenuation Part Number Attenuation

149-0128-01 1.0dB 149-0128-11 11.0dB

149-0128-02 2.0dB 149-0128-12 12.0dB

149-0128-03 3.0dB 149-0128-13 13.0dB

149-0128-04 4.0dB 149-0128-14 14.0dB

149-0128-05 5.0dB 149-0128-15 15.0dB

149-0128-06 6.0dB 149-0128-16 16.0dB

149-0128-07 7.0dB 149-0128-17 17.0dB

149-0128-08 8.0dB 149-0128-18 18.0dB

149-0128-09 9.0dB 149-0128-19 19.0dB

149-0128-10 10.0dB 149-0128-20 20.0dB

149-0128-XX Coaxial Attenuator. Equipped with SMA male and female connectors.

May be inserted in receive line or transmit line for RF level coordination.

Table 5.5

Alarms Ordering, RMAS-110 Alarm System

Standard Assembly Transmit

Stock Number Module

900-0246-01 1 + 0

900-0246-02 1 + 1

900-0246-03 2 + 1

900-0246-04 3 + 1

One alarm transmit module can send information to terminals at one or both ends of the Repeater

Link. Order receive modules for one or two locations as needed.

• Alarm system is optional. It should be ordered according

to Table 5.5.

• Orders should include a shipping destination and a billing

address. Upon receipt of your order, Peninsula Engineering

returns an acknowledgment with the scheduled shipping

date. An equipment list showing the equipment ordered and

shipped, is included with the shipment.

6. INSTALLATION

General

• When the RF-2000E/EW equipment is received, inspect it

carefully for damage. Claims for damage should be reported

directly to the transportation company involved immediately,

in accordance with their instructions.

• The RF-2000E/EW assembly can be mounted on crossarms

on a wood-pole structure, a steel tower, or on a wall. At

extremely hot environment, eg. desert, shading from direct

sunshine may be required. The length of all power leads

should be limited and the wire size adequate to minimize the

voltage drop. The repeater assembly, battery boxes, solar

panels, and antennas should all be mounted before any

wiring is done. Mounting hole dimensions for the repeater

housing are shown in Figure 6.1.

• Prior to cutting to length and connecting the coaxial feed-

lines, verify which repeater receive frequency associates with

each antenna port. The repeater receive frequencies are

marked on the repeater panel by each “N” type connector.

• The coaxial feedlines are terminated in type N(female)

connectors with extended threads. The threaded end mounts

in a hole in the cabinet bottom with a 5/8-24 UNEF (Type

N), PWC P/N 125-0063-09 nut. The connector type is

Andrew P/N L45N or equivalent. A jumper of semi-rigid

coax (Figure 6.2) is provided to connect from the feedline

connector to the panel connector (Left: 187-0278-01 and

Right: 187-0278-02).

TO ENSURE TIGHT CONNECTION, DO NOT USE ANY

WASHERS OR SPACERS BETWEEN CABINET AND NUT.

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Power Wiring

• Remove the fuses from the holders in the battery boxes,

if storage batteries are used. The power leads can be

brought into the repeater housing through the 1/2 inch

(13mm)-non-metallic conduit (NMT) ﬁttings provided. Use

paired 10-gauge (2.50-mm) wire from the batteries to the

repeater terminal block and from the solar panels to the

charge controller terminal block. Connect the NEGATIVE

leads to terminals 1 and 4 of ter-minal block TB-1 as shown

in Figures 1.1, 1.2 and 2.8. If a single ac supply is used,

jumpers must be installed between terminals 2 and 3 on the

lower side of the terminal block as shown in Figures 1.1

and 1.2. The NEGATIVE power lead is then connected to

terminal 1 or 4 as shown. Note that the equipment uses

a negative ground.

DO NOT CONNECT ANY POSITIVE POWER LEAD TO TB-1

AT THIS TIME.

Application of power is covered in para-graph 7.03.

DC Power

• The repeater is normally powered from a dual battery

system designated “A” and “B.” The “A” battery is wired to

power the “A” side of the equipment. Similarly, the “B”

bat-tery is wired to power the “B” side of the equipment.

Standby power switchover is accomplished within each

ampliﬁer. Each ampliﬁer has a primary and secondary

battery input. If the primary battery should fail, operation

will immediately continue on the secondary battery.

7. TESTS

General

• Few adjustments are required on the RF-2000E/EW

repeater. After application of power, AGC/ALC adjustment,

and proper antenna orientation, the equipment is ready

to be placed in service. Use of portable or mobile radio to

establish a talk path between the RF-2000E/EW repeater

site and the terminals, will aid in completing the tests and in

verification of normal (calculated) system operation.

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