Microhard Systems DDL2450 User manual

DDL2450 & DDL900 Amplifier
10W 2.4GHz | 900 MHz Linear Amplifiers
Document: DDL Amplifier.Operating Manual.v1.3.1
Date: June 2017
Operating Manual
150 Country Hills Landing NW
Calgary, Alberta
Canada T3K 5P3
Phone: (403) 248-0028
Fax: (403) 248-2762
www.microhardcorp.com

© Microhard Systems Inc. Confidential 2
Important User Information
Warranty
Microhard Systems Inc. warrants that each product will be free of defects in material and workmanship for a period of one (1) year for its
products. The warranty commences on the date the product is shipped by Microhard Systems Inc. Microhard Systems Inc.’s sole liability and
responsibility under this warranty is to repair or replace any product which is returned to it by the Buyer and which Microhard Systems Inc.
determines does not conform to the warranty. Product returned to Microhard Systems Inc. for warranty service will be shipped to Microhard
Systems Inc. at Buyer’s expense and will be returned to Buyer at Microhard Systems Inc.’s expense. In no event shall Microhard Systems
Inc. be responsible under this warranty for any defect which is caused by negligence, misuse or mistreatment of a product or for any unit
which has been altered or modified in any way. The warranty of replacement shall terminate with the warranty of the product.
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HAS BEEN ADVISED OR OTHERWISE HAS KNOWLEDGE OF THE POSSIBILITY OF SUCH DAMAGES AND TAKES NO AC-
TION TO PREVENT OR MINIMIZE SUCH DAMAGES. IN THE EVENT THAT REGARDLESS OF THE WARRANTY DISCLAIM-
ERS AND HOLD HARMLESS PROVISIONS INCLUDED ABOVE MICROHARD SYSTEMS INC. IS SOMEHOW HELD LIABLE OR
RESPONSIBLE FOR ANY DAMAGE OR INJURY, MICROHARD SYSTEMS INC.'S LIABILITY FOR ANYDAMAGES SHALL NOT
EXCEED THE PROFIT REALIZED BY MICROHARD SYSTEMS INC. ON THE SALE OR PROVISION OF THE HARDWARE TO
THE CUSTOMER.
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The Buyer hereby acknowledges that Microhard Systems Inc. has a proprietary interest and intellectual property rights in the Hardware,
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(ii) reproduce or modify any Hardware, Software or Products or make any copies thereof, (iii) reverse assemble, reverse engineer or decom-
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© Microhard Systems Inc. Confidential 3
Revision History
Revision Description Initials Date
1.0.1 First Release PEH Jan 2017
1.2.0 Added Updated Pictures, Drawings, 900 MHz version PEH April 2017
1.3.0 Added drawings for reflect new power connector. PEH June 2017
1.3.1 Added voltage required for optional trigger PEH June 2017

© Microhard Systems Inc. Confidential 4
1.0 Overview
The DDL amplifier is a 10W 2.4GHz linear amplifier, designed for Digital Data Link applica-
tions. The DDL Amplifier offers a compact, rugged design, that features high speed automatic
TX/RX switching. The DDL Amplifier is a COTS device that does not require an export permit.
1.1 Performance Features
Key performance features of the DDL Amplifer include:
• 2.4 GHz or 900 MHz Frequency Band Operation (Model Dependant)
• Rx Band-pass filtering
• Automatic Tx/Rx switching
• External Tx-RX triggering, if required
• Overvoltage protection on all ports
• Tx/Rx LEDs
• Light Weight
• Compact & Rugged design
• Direct mounting of optional (not included - 3rd Party) 60mm cooling fan

© Microhard Systems Inc. Confidential 5
1.0 Overview
1.2 DDL amplifier Specifications
Electrical/General
Supported Frequency: DDL2450 Amplifier: 2.4 GHz
DDL900 Amplifier: 900 MHz
Tx Power Gain: DDL2450 Amplifier: 10-11 dB Typical
DDL900 Amplifier: 13-14 dB Typical
Tx O/P Power:
Rx Gain: DDL2450 Amplifier: 5 dB ± 1 dB
DDL900 Amplifier: 8 dB ± 1 dB
Rx/TX Switching: 1 µs Typical, 2 µs Max
Impedance: 50 Ω
DC Supply Voltage: 24-30 VDC
Current Draw: 2.5A @ 28VDC OFDM Conditions w/Adequate Heatsink
External Trigger: The amplifier can be manually switched between Tx & Rx modes by
(Optional) applying 0 / 3.3VDC signal (referenced to GND) at this terminal.
Environmental
Operation Temperature: -40oF(-40oC) to 185oF(85oC)
Humidity: 5% to 95% non-condensing
Mechanical
Dimensions: Approx: 3.3” x 3.0” x 0.95”
(85mm x 75 mm x 24 mm)
4.1” x 3.4” x0.95” (including connectors)
Weight: Approx. 275 grams
Connectors: Radio: Female SMA
Antenna: Female SMA
Power: Circular Quick Connect 3pin (1 Mating connector Included*)
Modulation Power
P1dB >25W
QAM 64 8W
QAM 16 10W
QPSK 13W

© Microhard Systems Inc. Confidential 6
2.0 Hardware Description
2.1 Connection Diagram
The diagram below illustrates the connection and basic requirements of the DDL Amplifier in
a system. Antenna types and power supplies are shown for illustration purposes and may
vary from application to application.
Coaxial Cable
(Minimal Loss)
RP-SMA Male
Coaxial Cable
(Minimal Loss)
SMA Male
SMA Female
RP-SMA Male
SMA Female
RP-SMA Female
ANTENNA
Capable of 10W
Radio
24-30V DC
3A Minimum
Power Supply
3 Wire Cable
Min AWG18(5A)

© Microhard Systems Inc. Confidential 7
2.0 Hardware Description
2.2 Mechanical Drawings

© Microhard Systems Inc. Confidential 8
2.0 Hardware Description
2.3 Power Cable Connection Diagram

© Microhard Systems Inc. Confidential 9
2.0 Hardware Description
2.4 Optional Cooling Fan Installation (Not included)

150 Country Hills Landing NW
Calgary, Alberta
Canada T3K 5P3
Phone: (403) 248-0028
Fax: (403) 248-2762
www.microhardcorp.com
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