ETS-LINDGREN 8000-070 RF Power Amplifier User Manual
- June 5, 2024
- ETS LINDGREN
Table of Contents
ETS-LINDGREN 8000-070 RF Power Amplifier
Notes, Cautions, and Warnings
Note: Denotes helpful information intended to provide tips for better use
of the product.
CAUTION: Denotes a hazard. Failure to follow instructions could result in
minor personal injury and/or property damage. Included text gives proper
procedures.
WARNING: Denotes a hazard. Failure to follow instructions could result in
SEVERE personal injury and/or property damage. Included text gives proper
procedures.
Safety Information
Warning : Avoid exceeding the stated maximum input level as this can
cause a risk of damaging the equipment.
Warning: There is a significant risk of an electrical or burn hazard, to
avoid this always ensure the output is terminated prior to switching on the
equipment.
Protective Earth Ground (Safety Ground): Indicates protective earth
terminal. You should provide uninterruptible safety earth ground from the main
power source to the product input wiring terminals, power cord, or supplied
power cord set.
Waste Electrical and Electronic Equipment (WEEE) Directive: (European
Union) At end of useful life, this product should be deposited at an
appropriate waste disposal facility for recycling and disposal. Do not dispose
of with household waste.
Introduction
The ETS-Lindgren Model 8000-070 RF Power Amplifier is capable of supplying 18 watts into a 50 ohm load over the frequency range 700MHz to 4200MHz. The amplifier is designed with sufficient gain so that it may be used with normal output levels of signal sources.
- A safety interlock on the rear panel is also provided, which will mute the amplifier when grounded.
- The unit is powered by a switched mode power supply for high efficiency, high power factor, and a wide voltage range operation. The unit is air cooled with integral fans and is protected against faulty cooling by excess temperature sensing.
- A front panel fault indicator is provided to indicate over-temperature.
The amplifier is designed for rugged operation into a variety of loads and is
primarily intended for use as an RF power source for EMC susceptibility
testing, but is also applicable to other systems requiring a wide-band linear
amplifier.
This amplifier is designated as Professional Equipment and should not be
operated by untrained staff. As this product has the capability to generate
high levels of RF energy it is not intended for use in a residential
environment.
Standard Configuration
- The 8000-070 amplifier is supplied for installation into a 19 inch rack.
- The RF connectors are N type input which are located on the rear panel of the amplifier.
Maintenance
If you have any questions concerning maintenance or if the amplifier system is misoperating, contact ETS-Lindgren Customer Service. See Service Procedures for contact information.
CAUTION: Before performing any maintenance, follow the information
provided in Before You Begin on page 13.
WARNING: There are no user serviceable parts within the RF Power
Amplifier system.
To prevent electrical shock, DO NOT remove covers.
Warranty will be void if the covers are opened.
ALWAYS UNPLUG THE UNIT BEFORE CLEANING. Clean the exterior of the cabinet
using a damp cloth.
Service Procedures
CONTACTING ETS-LINDGREN
Note: Please see www.ets-lindgren.com for a list of ETS-Lindgren offices, including phone and email contact information.
SENDING A COMPONENT FOR SERVICE
- Contact ETS-Lindgren Customer Service to obtain a Service Request Order (SRO).
- Briefly describe the problem in writing. Give details regarding the observed symptom(s) or error codes, and whether the problem is constant or intermittent in nature. Please include the date(s), the service representative you spoke with, and the nature of the conversation. Include the serial number of the item being returned.
- Package the system or component carefully. If possible, use the original packing materials or carrying case to return a system or system component to ETS-Lindgren.
Specifications
Electrical Specifications
Note: The third order intercept point is a nominal value as its
calculation depends upon the power level at which distortion measurements are
made.
Note: Output VSWR tolerance is specified for excitation within the
permitted levels and frequency range.
Frequency Range (Instantaneous) | 700MHz – 4200MHz |
---|---|
Rated Output Power | 18W Minimum |
Output Power at 1dB Gain Compression | 12W Minimum |
Gain | 43dB Minimum |
Third Order Intercept Point | 51dBm |
Gain Variation with Frequency | +/- 3dB |
Harmonics at Rated Linear Power
| Better than -14dBc (0.7-1GHz) Better than -20dBc (1-4.2GHz)
Output Impedance| 50 Ohms
Stability| Unconditional
Output VSWR Tolerance| Infinity:1
Input VSWR| 2:1
RF Connector Style| Type N Female
Safety Interlock| BNC Female, S/C and O/C to Mute
USB/GPIB/Ethernet Interface| Standard
Physical Specifications
Case Dimensions | 19 inch, 3U Rack, 500mm deep |
---|---|
Weight | 6 kg (13.2 lb) |
Environmental
Operating Temperature Range | 0-40°C |
---|---|
Altitude | Up to 2000m above sea level |
Humidity | 95% (Non-condensing) |
Before You Begin
CAUTION: Before connecting any components, follow the information provided in Safety Symbols on page v.
Unpacking
The 8000-070 amplifier is supplied with the following contents:
- Power Cable (10A)
- Spare Fuse (T 3.15A H 250V 20mm)
- User Manual (This document)
- Calibration Test Report
- Remote Control Interface Manual
- Remote Control Interface Disc
- USB Cable
If any signs of damage are found no attempt should be made to install or
operate the amplifier system. Contact ETS-Lindgren Customer Service
immediately to report the problem.
If the shipping carton has been damaged, retain the shipping carton and
packing material for the carrier’s inspection. Check that the equipment is
complete and is in an undamaged condition, and then contact ETS-Lindgren
Customer Service for further advice.
Safety Information
- This RF amplifier has been designed and tested in accordance with BS EN61010-1 and has been supplied in a safe condition. This manual contains warning information that must be followed to ensure safe operation and to retain the apparatus in a safe condition.
- This apparatus does not incorporate components liable to explode or implode during normal operating conditions.
- In normal operating conditions this apparatus does not liberate injurious or poisonous gases.
- Sound levels of this apparatus in a rack are below 85dBA as required by EN61010-1.
- If local regulations have a lower limit, appropriate action should be taken in line with the local regulations so as to comply.
- This apparatus is of Installation Category 2.
Warnings
WARNING: This apparatus is capable of delivering harmful levels of radio
frequency power. Ensure at all times during operation that the RF output is
properly terminated with an adequately rated termination or transducer and
that the cables and connectors attached to the apparatus are in good
condition.
The use of suitably rated mains cords must only be used as specified within
this document, see Rear Panel, Mains Input on Page 15.
The mains plug shall only be inserted in a socket outlet provided with a
protective earth contact. The protective action must not be negated by the use
of an extension cord without a protective conductor.
The opening of covers or removal of parts is likely to expose live parts.
This apparatus must only be serviced by qualified service personnel and must
be disconnected from all voltage sources before it is opened for adjustment,
replacement, maintenance, or repair.
Make sure that only fuses of the required rated current and of the specified
type are used for replacement. The use of makeshift fuses and the short-
circuiting of fuse holders are prohibited.
Installation
CAUTION: Before connecting any components, follow the information provided in Before You Begin on page 13.
Mains Input
- Mains input is via a 10A power cable (supplied).
- Access for mains disconnection must be maintained at all times.
Amplifier Protection
- The amplifier is protected by a fuse of the following rating, T 3.15A H 250V 20mm.
- This instrument must be earthed.
WARNING: If the rack mounting option has been selected, the unit must be
installed in the rack using a suitable tray or runners.
The amplifier must not be supported only by the front panels.
Operation
CAUTION: Before placing into operation, follow the information provided
in Before You Begin on page 13.
Note: Make sure you are satisfied with the contents and condition of your
amplifier prior to placing it into operation.
Warning: Avoid exceeding the stated maximum input level as this can cause
a risk of damaging the equipment.
Warning: There is a significant risk of an electrical or burn hazard; to
avoid this, always ensure the output is terminated into a suitable load prior
to switching on the equipment.
Equipment Use
- The equipment must only be used for its intended purpose.
- All parts of the equipment must remain connected to ensure that protective circuits operate. Disconnecting parts of the equipment may impair operation and safety.
Mains Switch
- The amplifier is switched on or off by pressing the mains switch on the rear panel of the amplifier.
Standby/Operate Switch
Pressing the standby/operate switch toggles the state of the amplifier between Standby and Operate modes. The blue halo indicator flashes in Standby mode, whereas steady blue indicates Operate mode.
Fault Indicator (Red LED)
Should a fault be detected, the red LED on the amplifier front panel will be
illuminated. The amplifier will be forced into standby mode and the unit will
cease to function. This action is latching, therefore only when the fault has
been cleared can the amplifier be reset; this is done by pressing the
standby/operate switch.
The reasons for the system fault light to illuminate are as follows:
- Excess module temperature
- Air cooling failure (fans failing to operate)
Interlock Indicator (Orange LED)
When the rear panel interlock is activated the interlock indicator will illuminate and the amplifier gain stages will all be turned off. This action is latching; therefore, the amplifier will return to Standby mode when the interlock is released.
Local Lockout Indicator
This indicator is used with the USB/GPIB/Ethernet function. Refer to the separate Remote Control Interface manual supplied.
RF Input (Rear Panel Mounted)
The RF input will accept a signal from an RF generator. This input must be within the operating frequency range of the 8000-070 amplifier. An amplitude of up to 0dBm will be sufficient to saturate the amplifier. Operation outside the specified frequency range should not be attempted as it may subject the amplifier to undue internal stress.
RF Output (Rear Panel Mounted)
WARNING: The centre conductor of the RF output represents a severe burn
hazard to personnel.
Never operate the amplifier without a proper termination or with defective
cables or connectors.
This connector must be suitably terminated at all times during operation.
Ensure that the cable is capable of handling the power available, which may be
as much as
33 watts.
Air Inlet
This amplifier requires a free air supply for cooling; the front air inlet must not be restricted.
Safety Interlock
- A dual interlock system can be operated by applying either short circuit (S/C) or open circuit (O/C) to mute the amplifier.
- In order for the amplifier to operate, the Interlock BNC connector must be S/C and the Interlock must be O/C. If the Interlock is O/C or the Interlock is S/C the amplifier will be muted.
- The amplifier is delivered without the interlock applied and will be ready to operate.
- The interlock function is latching so when the interlock is removed the amplifier will be in standby mode. Press the standby/operate switch to return to normal operation.
- Current drawn from the interlock BNC connectors under short circuit conditions will typically be 2.8mA.
Fan Outlet
This amplifier requires a free air supply for cooling; the rear air outlets must not be restricted.
Appendix A: EC Declaration of Conformity
ETS-Lindgren Inc. declares these products to be in conformity with the following standards, following the provisions of EMC Directive 2014/30/EU and Low Voltage Directive 2014/35/EU:
Model 8000-070 RF Power Amplifier
Emission:
EN 61326-1:2013, Class A
Electrical equipment for measurement, control, and laboratory use.
Immunity:
EN 61326-1:2013, Industrial level, performance criteria A
Electrical equipment for measurement, control, and laboratory use.
Safety:
EN 61010-1:2010, AMD1:2016
Safety requirements for electrical equipment for measurement, control, and
laboratory use.
Technical Construction Files are available upon request.