Feedline Voltage Coupler

Transcription

1 Feedline Voltage Coupler DXE-FVC-1 DXE-FVC-1-INS Rev. 5b DX Engineering Southeast Ave. - Tallmadge, OH USA Phone: (800) Tech Support and International: (330) Fax: (330) DXEngineering@DXEngineering.com

2 Introduction The DXE-FVC-1 Feedpoint Voltage Coupler is a versatile receive feedline or control cable voltage injector and switching interface. It is used to control receive antenna switching devices through the feedline or on a two conductor control cable. The DXE-FVC-1 converts 12 Vac voltage input to fuse-protected 0V, +12 Vdc, 12 Vdc and 12 Vac output voltages. The voltage output of the DXE-FVC-1 is simultaneously sent on the receive feedline through the ANT port F connector and on the OUT pin of the removable 5-terminal rearpanel connector for use with a two-conductor control cable. This voltage sequence can be used to provide 4-direction switching of an antenna array or selection of four different antennas. Connection of the DXE-FVC-1 to the radio equipment receive antenna input may be made using either the standard RCA phono -or- the type F connector. This allows use of readily available RF compatible RCA phono patch cords or 75 Ω coaxial cable and connectors, and protects the receive system from accidental connection to transmitting equipment. As supplied, the DXE-FVC-1 input is ready to be voltage switched using the DX Engineering DXE-CC-8A Control Console, 8 Position Switch. Alternatively, the user may choose to use a rotary switch by changing an internal jumper in the DXE-FVC-1 to use input grounding switching control. Features External 12 Vac heavy duty power transformer included Metal housing superior shielding, rugged, easy mounting Convenient installation mounts anywhere in your shack Rugged control connector removable, reliable solder-less connections Receive only connectors, Type F and RCA phono - used to protect receive equipment Internal thermal reset fuse full protection against accidental shorts Flexible input BCD voltage or 1-of-4 ground switching Dual LEDs show control voltage output, used for directional indicators 2

3 Connections & LEDs # Label Designation Description 1 12 VAC IN Standard 2.1 mm connector for 12 Vac input Included with the DXE-FVC-1 is a 12 Vac wall transformer 2 OUT-AC-NEG-POS-GND Removable control cable input connector 3 ANT F Connector for 75-ohm coaxial cable from the DXE-FVC-1 connection to receive antenna system F connector for connection of 75-ohm coaxial cable from the 4 DXE-FVC-1 to the customer's Radio Receive Input RADIO RCA phono plug for connection from DXE-FVC-1 to the 5 customer's Radio Receive Input Red LED - when lit it indicates that +12 Vdc is being sent out through the ANT connection 6 & 7 - AC + Green LED - when lit it indicates that -12 Vdc is being sent out through the ANT connection Red and Green LED - when both are lit, they indicate 12 Vac is being sent out through the ANT connection When both the Red and Green LED's are not lit, 0 v is applied to the ANT connector 3

4 Figure 1 - DXE-FVC-1 removable connector The green connector on the rear of the DXE-FVC-1 is a two part polarized connector. This connector, for the control wires, is removed by pulling it straight off. This will allow easy wire placement or servicing as needed. When pushing the connector back in place, ensure you press straight inward. Refer to Figure 1. Connections are made with a screwdriver; no soldering is required. Do not attempt to solder wires to the connector, and do not over-tighten the screws. Remove 1/4 inch of insulation from each control wire so the screw terminals tighten on the wire and not the insulation. This will also protect adjacent wires from the potential of shorting together. Stranded wire should be tightly twisted or very lightly tinned before insertion. Open terminal slots by turning the screws CCW (counter clockwise) before wire ends are inserted. Do not force the screw beyond the stop. Connecting the DXE-FVC-1 to a receive antenna system uses a standard type F connector. This allows use of readily available 75-ohm coaxial cable and connectors, and protects the receive system from accidental connection to transmitting equipment. Installation The DXE-FVC-1 is typically mounted near the operating position so the LEDs are visible, but any protected location with ambient temperatures below 150 F non-condensing (65 C) is acceptable. The DXE-FVC-1 unit requires 12 Volts AC power. The unit will not function properly if 12 Vdc is used on the input. The included wall transformer will provide 12 Volts AC power for the DXE-FVC-1. A malfunction will occur if 12 Vdc is used to power the DXE-FVC-1. Figure 2 - Transformer Label The switched output voltages appear simultaneously on both the ANT feedline connector and the rear panel OUT terminal on the 5 position green connector. The OUT terminal is used for supplemental switching control output only and cannot be used to provide power to any unit. NOTE: The DXE-FVC-1 uses 1/2-wave rectification for the DC control voltages. When measuring the output using an RMS or average reading DVM, the normal DC output of the DXE-FVC-1 will indicate a nominal +/ 6 Volts. The AC voltage will measure 12 Vac. 4

5 Internal Jumper Settings Internal jumper JMP1 is used to select the input control function that controls the DXE-FVC-1. Remove the four screws holding the cover to the base to gain access to the internal jumper. Figure 3-4 screws that hold the DXE-FVC-1 case together The factory default setting has the jumper JMP1 connecting to the two pins below EXT. Figure 4 - Factory default setting for JMP1 When JMP1 is set to EXT, external +12 Vdc (nominal) is required for BCD input switching control. The default jumper position, EXT, sets the DXE-FVC-1 to respond to external source voltages of +9 to +15 Vdc in order to control the output voltages. The DXE-CC-8A Control Console provides these voltages. If you wish to use a simple switch closure to ground on the input in order to control the output, then change the jumper setting to INT. Control current is low (less than 100 ma). With JMP1 set to INT, the DXE-FVC-1 internally sources the control voltage. This allows using a 1-of-4 input switching control scheme by grounding the appropriate input pin, which selects the desired output. Switching can be accomplished with a simple, inexpensive SP4T rotary switch or a push-button switch arrangement. Note: The DXE-FVC-1 must be powered by 12 Vac in order to operate no matter which way JMP1 is set. BCD control interface systems require a 3-conductor control cable. 1-of-4 logic requires a 4- conductor control cable. Use of the supplemental control OUT output would require a 2-conductor cable. These conductor counts include the ground return. 5

6 Connections DXE-F6-SPL or DXE-F high quality 75-ohm flooded RG-6 type coaxial cable is recommended. Flooded style cables have the distinct advantage of automatically sealing small accidental cuts or lacerations on the jacket. Flooding also prevents shield contamination and the coaxial cable can be direct-buried. Moisture coming into the shield often occurs at the connector and can cause increased system noise. For superior watertight connections, use DXE-SNS6-25 Snap-N-Seal connectors. Weather-tight Snap-N- Seal connectors CANNOT be installed with normal crimping tools or pliers. The use of the DXE-SNS-CT1 installation tool is available from DX Engineering. The F type ANT connector on the DXE-FVC-1 is used to connect the receiving antenna feedline. The appropriate switching voltage is applied through the feedline by the DXE-FVC-1. It is critical that the feedline connectors remain dry and you do not place any intentional DC shorts or opens on the feedline between the DXE-FVC-1 and anything being controlled. This includes lightning arrestors, splitters or any other accessory not intended for feedlines carrying power or control voltages. The radio connections go to the receiver using either the type F or RCA phono connector. The DXE-FVC-1 requires 12 Vac to operate. Connect the included wall transformer to the 2.1 mm barrel plug on the DXE-FVC-1 labeled "12 VAC IN". Control connections for the DXE-FVC-1 labeled AC, NEG, POS and GND as well as the supplemental output labeled OUT are made at the removable, green 5-terminal screw-type connector. Do not attempt to solder wires to this connector. Remove 1/4 inch of insulation from each 16 to 24 gauge control wire, insert the wires in the appropriate screw terminal. When tightening ensure the connection is secure against the wire and not the insulation. Be certain that adjacent wires are positioned to eliminate the possibility of shorting. Stranded wire should be tightly twisted or very lightly tinned before insertion. Open terminal slots on the removable green connector by turning the screws counter clock-wise before the wire ends are inserted. Do not force the screw beyond the stop. Tighten each screw securely clock-wise without over-tightening. The example above Note: The ground connection (GND) should be connected to your station ground buss. Input/Output Logic and Connection Examples uses color coded wire. Your wire may not look the same The DXE-CC-8A Control Console may be used to provide the voltage or a user supplied switch may be used to provide the voltage or grounding, required by the DXE-FVC-1 input in order to control the output. The following tables show the input and output combinations for both schemes. Each input state results in a different output voltage thru the ANT type F-connector and on the OUT supplemental terminal per Table 1. Note the LED indications. 6

7 Application Notes The following tables and diagrams depict the wiring logic of the most common use of the DXE- FVC-1 Feedline Voltage Coupler controlling the DXE-RBS-1P Reversible Beverage System. These connections apply to the configurations examples in Figures 5, 6, 9, and 10. When using the DXE-FVC-1 Feedline Voltage Coupler with the DXE-RFS-2P Receive Four Square System and some DXE-RLS-2 Two Port Receive Antenna Switch configurations, a polarity reversal is required. This is accomplished by swapping the POSitive and NEGative wires on the DXE-FVC-1 unit for the configuration examples in Figures 7, 8 and 11. The polarity information is clearly noted on each diagram in the small tables labeled "Control Cable Wiring". BCD Logic As shipped, with the internal JMP1 set to EXT, a BCD logic uses an external +12 Vdc to switch the DXE-FVC-1 input in order to control the output. The DXE-CC-8A Control Console supplies the external voltage, referenced to the GND terminal. The wiring from the DXE-CC-8A to the DXE- FVC-1 input according to Table 1 is shown below using COM-CW3 three conductor cable. NOTE: The DXE-FVC-1 uses 1/2-wave rectification for the DC control voltages. When measuring the output using an RMS or average reading DVM, the normal DC output of the DXE-FVC-1 will indicate a nominal +/ 6 Volts. The AC voltage will measure 12 Vac. BCD input voltage control uses only the terminals labeled POS, NEG and GND. There are four possible states for switching. Note: Logic zero is all terminals open or floating. DXE-CC-8A or user +12 Vdc switch position + 12 Vdc applied to DXE-FVC-1 POS terminal + 12 Vdc applied to DXE-FVC-1 NEG terminal DXE-FVC-1 Voltage Output LED On V Neither Vdc -12 Vdc Green Vdc Vdc Red Vdc +12 Vdc 12 Vac Both Table 1 Default BCD Logic Input and Resulting Output The above diagram is the most common hook up scheme. Refer to Figures 5, 6, 9 and 10 7

8 One of Four Grounding Logic Alternatively, after changing the internal jumper JMP1 to INT, a customer supplied 1-of-4 grounding switch may be wired to the DXE-FVC-1 input according to Table 3. Grounding the appropriate terminal(s) results in a different output voltage through the ANT type F-connector and on the green connector OUT terminal. Control using a 1-of-4 grounding control uses terminals POS, NEG, AC and GND Note the LED indications. GND signifies a grounding of the respective terminal. N/C is No Connection or floating. COM is the common terminal on the 4 position switch. User switch position Ground applied to DXE-FVC-1 POS terminal Ground applied to DXE-FVC-1 NEG terminal Ground applied to DXE-FVC-1 AC terminal DXE-FVC-1 Voltage Output LED On 1 N/C N/C N/C 0 V Neither 2 N/C GND N/C -12 Vdc Green 3 GND N/C N/C +12 Vdc Red 4 N/C N/C GND 12 Vac Both Table 3 1-of-4 Grounding Logic and Resulting Output NOTE: The DXE-FVC-1 uses 1/2-wave rectification for the DC control voltages. When measuring the output using an RMS or average reading DVM, the normal DC output of the DXE-FVC-1 will indicate a nominal +/ 6 Volts. The AC voltage will measure 12 Vac. The above diagram is the 1 of 4 grounding logic hook up scheme using a customer supplied 4 position switch. 8

9 Maintenance The DXE-FVC-1 requires no maintenance when installed properly. The included wall transformer power supply uses an automatic thermal reset fuse that does not need to be replaced. Manual Updates Every effort is made to supply the latest manual revision with each product. Occasionally a manual will be updated between the time your DX Engineering product is shipped and when you receive it. Please check the DX Engineering web site ( for the latest revision manual. Configuration Examples The following examples show the DXE-FVC-1 Feedline Voltage Coupler being used in various controlling configurations. These are only suggestions. Amateur Radio Operators are using the DXE-FVC-1 for many applications in controlling remote equipment, you are only limited by your Amateur Radio imagination. Figure Description 5 Depicts a typical DXE-RBSA-1P Reversible Beverage System layout Shows a Four-Direction Beverage System using two DXE-RBSA-1P Reversible 6 Beverage Systems. 7 Describes a DXE-RFS-TS2P Complete Receive Four Square Array Package. Uses a DXE-FVC-1 Feedline Voltage Coupler to supply the switching voltages for a 8 system that has four different receive inputs using the DXE-RLS-2 Two Port Receive Antenna Switches. Has the DXE-FVC-1 Feedline Voltage Coupler providing the control voltages for a Single Transmit Antenna System using a DXE-RBS-1 Reversible Beverage Antenna 9 System with the DXE-RTR-1 Receive Antenna Interface for transceivers which lack a receive antenna input. Uses the DXE-FVC-1 Feedline Voltage Coupler to control two Single Direction 10 Beverage Antenna Systems. Uses the DXE-FVC-1 Feedline Voltage Coupler to control a Two Element Dual 11 Direction Offset Beverage Phased Array. For more information on the products shown in the following examples, please refer to the DX Engineering manuals for the individual products. 9

10 Figure 5 depicts a typical DXE-RBSA-1P Reversible Beverage System layout. A DX Engineering DXE-FVC-1 Feedline Voltage Coupler is used to provide the switching voltage on the feedline required for the DXE-RBSA-1P system to reverse directions. Figure 5 - Typical Reverse Beverage System Layout 10

11 Figure 6 shows a DXE-FVC-1 Feedline Voltage Coupler used to supply controlling voltages for a Four-Direction Beverage System using two DXE-RBSA-1P Reversible Beverage Systems, along with a DX Engineering DXE-RLS-2, 2-port receiving antenna switch, to build a four direction Beverage system using a single feedline. One or more DXE-RLS-2 s can be used to expand larger Beverage arrays and share the feedline back to the operating position. Figure 6 - Four-Direction Beverage System 11

12 Figure 7 has the DXE-FVC-1 Feedline Voltage Coupler used for controlling a DXE-RFS-TS2P Complete Receive Four Square Array Package. Figure 7 12

13 Figure 8 uses a DXE-FVC-1 Feedline Voltage Coupler to supply the switching voltages for a system that has four different receive ports using three DXE-RLS-2 Two Port Receive Antenna Switches, one modified internally (refer to the DXE-RLS-2 manual). This four position switching system may be used for four antennas or four radio receivers. Voltage Applied only to Feedline Selected Port not to Ports 0 Vdc Port A +12 Vdc Port B -12 Vdc Port C 12 Vac Port D Figure 8 - DXE-RLS-2 Configured to Switch 4 Ports 13

14 Figure 9 has the DXE-FVC-1 Feedline Voltage Coupler providing the control voltages for a Single Transmit Antenna System using a DXE-RBS-1 Reversible Beverage Antenna System with the DXE-RTR-1 Receive Antenna Interface for transceivers which lack a receive antenna input. Figure 9 14

15 Figure 10 uses the DXE-FVC-1 Feedline Voltage Coupler to control two Single Direction Beverage Antenna Systems. Figure 10 15

16 Figure 11 uses the DXE-FVC-1 Feedline Voltage Coupler to control a Two Element Dual Direction Offset Beverage Phased Array. Figure 11 16

17 Optional Items DXE-RFS-TS2P - Complete Receive Four Square Array Package for Close Spacing to Transmit Antennas Complete Receive Four Square Array package for Close Spacing to Transmit Antenna W8JI design Operates from 100 khz to 30 MHz Excellent directivity in a small space for better signal-to noise ratio Switchable in four 90 degree spaced directions Reduced susceptibility to high angle signals compared to EWE, Flag, Pennant, or K9AY arrays Complete Receive Four Square Array Package for Close spacing to transmit antenna includes: (1) DXE-ARAV2-4P Package of 4 Active Receive Vertical Antennas w/ Internal Antenna Disconnect Relays (1) DXE-RFS-2 Receiving Four Square Antenna Switch (1) DXE-CC-8A 8 Position Control Console (1) DXE-TVSU-1 Time Variable Sequence Unit (1) DXE-F CATV F-6 Style Coax, 75-ohm, F6 Flooded for Direct Burial, 1000' Spool (25) DXE-SNS6-25 Snap-N-Seal 75-ohm Coax Connectors for CATV F-6 Cable (1) DXE-SNS-CT1 Crimp Tool for Snap-N-Seal 75-ohm Coax Connectors (1) DXE-CPT-659 CATV F-6, RG-6 and RG-59 Coax Cable Stripper, Includes 1 Replacement Blade DXE-CC-8A Control Console, 8 Position The CC-8A Control Console is a flexible, 8-position controller used to control the DX Engineering RR8 series antenna switches, the RFS-2P Receive Four Square controller or any product that uses a 12 or 24* Vdc 1-of-8 or BCD control format. The attractive metal housing is powder-coated and features an ON/OFF switch, ergonomic selector knob and eight front-panel LED's, with adjustable brightness, to indicate switch position. The rear panel external plug allows the control cable to be easily unplugged during weather events or if the shack needs to be rearranged. We suggest unplugging the CC-8A control leads when severe weather is expected. The use of a lightning protector on the control lines, such as the PolyPhaser PPC-IS-RCT, available from DX Engineering, is prudent as well. Shielded CAT-5 type cable can be used for the control cable. (8 conductors plus ground). DXE-CW9S is a top quality 9-conductor stranded, shielded cable for best results. For most applications requiring 12 vdc switching, your existing transceiver power supply or the accessory DXE-PSW-12D1A can be used. Features Switching positions: 8 Input voltage: 12/24 Vdc, user supplied Output voltage: 12/24 Vdc * Dependent on user-supplied dc input power source. Protection: Dual internal automatic reset fuses Output format: 3-bit BCD or standard 1-of-8 Dimensions: 8 x 5 x 2.75'' (203.2 x 127 x mm) (WxDxH) DXE-RLS-2 - Two Port Receive Antenna Switch The DX Engineering 2-Port Receiving Antenna Switch RLS-2 is designed to allow selection of one of two output ports (generally connected to different receiving antennas) from one feedline. Transfer activates with application of a Vdc or 9-12 Vac control voltage through the feedline. Features Metal housing for superior shielding and long life High quality components Reliable F-type connectors Operating range from 300 khz to 30 MHz with 75 Ω systems Jumper-selectable, control voltage pass-thru to the selected port When used with two DX Engineering RBS-1 Reversible Beverage Systems, the RLS-2 will allow selection of four directions using a single main feedline. Install one or more RLS-2 s to expand larger Beverage arrays and share the feedline back to the operating position. The DX Engineering FVC-1 Voltage Coupler can be used to supply the control voltages through the feedline to control 4- direction switching of an receiving array (using two RLS-2's) or selection of four different receiving antennas. 17

18 DXE-CW9S - Shielded Control Wire, 9 conductor stranded, per foot DXE-CW9S is a high quality shielded outdoor cable. It features 9 #24 AWG stranded conductors with aluminum foil shielding plus a #24 stranded tinned copper drain wire. This gives you 8 switch positions plus common ground - plus the separate shield. It has a gray PVC jacket. This cable is ideal for DX Engineering Remote Antenna Switches and Four Square arrays, and should be considered for any low-current custom remote switching application you have - such as receiving antenna arrays. Order by the foot in the length you require. Price shown is per foot. A nice feature is the "rip cord", which allows for easy stripping of the heavy jacket without worry about nicking or accidentally cutting the conductors. COMTEK Control Wire, 3 Conductor, Sold per Foot - COM-CW3 A high quality, PVC jacketed 3-wire control cable, COM-CW3 consists of 3 #20 AWG conductors. It may be used in a multitude of control cable applications, such as remote switching and antenna rotators. Sold by the foot - order the length you need. COMTEK Control Wire, 4 Conductor, Sold per Foot - COM-CW4 A high quality, PVC jacketed 4-wire control cable, COM-CW4 consists of 4 #20 AWG conductors. It may be used in a mulititude of control cable applications, such as remote switching and antenna rotators. Sold by the foot - order the length you need. DXE-F ohm F-6 Style Direct Bury Coax, 1000 ft. Spool Hi Quality, 75-ohm F6 type "Flooded" Coax Sold by the spool, or as Custom Cable Assemblies Center Conductor: 18 AWG Copper-Clad Steel, Nominal Diameter: in. Dielectric: Gas Expanded Polyethylene, Nominal Diameter Over Dielectric: in. Shield: 1st Shield: Aluminum-Polypropylene-Aluminum, Laminated Tape with overlap Bonded to the Dielectric, Nominal Diameter Over Tape: in. 2nd Shield: 34 AWG Aluminum Braid Wire, 60% Coverage Jacket: PE (Flooded for Underground), Nominal Diameter Over Jacket: in., Nominal Jacket Thickness: in. Electrical Properties: Impedance: /- 3.0-ohms, Velocity of Propagation: 85.0% Nominal We recommend the use of Snap-N-Seal connectors to ensure a high quality and weather resistant feedline connection. The proper tool must be used to install these connectors. DXE-CPT oax Cable Stripper for CATV F-6, RG-6 and RG-59 coax Prepares CATV F-6, RG-6 and RG-59 coax cable for the installation of an "F" type connector. One-step cutting motion Precision cut No nicks or scratches to conductor Includes 1 replacement blade DXE-RTV Permatex Black RTV Sealant, Non-Acetic oz Tube, Black DX Engineering Approved RTV Sealant - We have all used RTV to seal water out of things, right? Have you ever sealed a piece of electronic gear with it -- then opened it some time later to find that it had still managed to become corroded inside? Guess what? It's not the rain that corroded it - It's the RTV! Normal RTV gives off acetic acid when it cures. That's the vinegar smell. The acetic acid causes the corrosion. DX Engineering has located a Neutral Cure RTV made right here in Ohio that is non-corrosive and is safe for sealing those baluns and other electronic gear that are going to be out in the weather. Applies just like "normal" RTV, dries in one hour and cures in 24 hours at 70 degrees F. And it doesn't smell like vinegar! 3.3 oz. Tube - Black *This part is classified hazardous and is limited to domestic UPS Ground shipping only 18

19 DXE-SNS Watertight Coax Connector, Snap-N-Seal for CATV F-6 Cable, 25 pieces Snap-N-Seal is an environmentally sealed CATV F coax connector system for harsh environments. The connectors have a unique, 360 degree radial compression system that offers the signal leakage protection required for high performance receive systems. Quad sealed system prevents moisture from migrating into the connection 360 degree radial compression provides superior RF integrity (-95dB typical, 60% bonded foil cable) Easy cable preparation Connector to cable retention of 40 lbs minimum Superb impedance match to 1 GHz Manufactured of high quality 360 brass, cadmium plated with yellow chromate coating for maximum corrosion resistance UV-resistant plastic and O-rings provide a reliable environmentally sealed connector An installation tool, such as the DXE-SNS-CT1, is required to install the connectors. Normal crimping tools or pliers will not work. DXE-SNS-CT1 - Compression Tool for Snap-N-Seal 75-ohm Coax Connectors Ratchet compression tool for installing Snap-N-Seal 75-ohm Coax connectors. Ordinary pliers will not install these connectors properly. DXE Automatic Wire Stripper/Crimper/Cutter, Ga. Our DX Engineering wire stripper uses a spring-loaded design to make quick work of wires ranging from 24 to 10 gauge. Just insert the wire, squeeze the handle, and listen for the click. That s the sound of another perfect wire stripping job performed in about 2 seconds- a fraction of the time it takes your pocket knife to do the same job. An adjustable wire length guide helps you make uniform strips, and a built-in wire cutter and crimper helps you complete your wiring job. Spring-loaded design - Strips wires ranging from 24 to 10 gauge - built-in wire cutter and crimper DXE-PSW-12D1A - AC Adapter 12 Volt DC 1000 ma Wall Transformer 120 Vac 60 Hz input - 12 Vdc, 1 Amp, Fused output. A standard 2.1 mm plug connection for 12 Vdc. Outer connection is GROUND Center Pin is input for +12 VDC. 19

20 Technical Support If you have questions about this product, or if you experience difficulties during the installation, contact DX Engineering at (330) You can also us at: Warranty For best service, please take a few minutes to review this manual before you call. All products manufactured by DX Engineering are warranted to be free from defects in material and workmanship for a period of one (1) year from date of shipment. DX Engineering s sole obligation under these warranties shall be to issue credit, repair or replace any item or part thereof which is proved to be other than as warranted; no allowance shall be made for any labor charges of Buyer for replacement of parts, adjustment or repairs, or any other work, unless such charges are authorized in advance by DX Engineering. If DX Engineering s products are claimed to be defective in material or workmanship, DX Engineering shall, upon prompt notice thereof, issue shipping instructions for return to DX Engineering (transportation-charges prepaid by Buyer). Every such claim for breach of these warranties shall be deemed to be waived by Buyer unless made in writing. The above warranties shall not extend to any products or parts thereof which have been subjected to any misuse or neglect, damaged by accident, rendered defective by reason of improper installation, damaged from severe weather including floods, or abnormal environmental conditions such as prolonged exposure to corrosives or power surges, or by the performance of repairs or alterations outside of our plant, and shall not apply to any goods or parts thereof furnished by Buyer or acquired from others at Buyer s specifications. In addition, DX Engineering s warranties do not extend to other equipment and parts manufactured by others except to the extent of the original manufacturer s warranty to DX Engineering. The obligations under the foregoing warranties are limited to the precise terms thereof. These warranties provide exclusive remedies, expressly in lieu of all other remedies including claims for special or consequential damages. SELLER NEITHER MAKES NOR ASSUMES ANY OTHER WARRANTY WHATSOEVER, WHETHER EXPRESS, STATUTORY, OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS, AND NO PERSON IS AUTHORIZED TO ASSUME FOR DX ENGINEERING ANY OBLIGATION OR LIABILITY NOT STRICTLY IN ACCORDANCE WITH THE FOREGOING. DX Engineering 2017 DX Engineering, DXE, DX Engineering, Inc., Hot Rodz, Maxi-Core, DX Engineering THUNDERBOLT, DX Engineering Yagi Mechanical, EZ-BUILD, TELREX, Gorilla Grip Stainless Steel Boom Clamps, Butternut, SkyHawk, SkyLark, SecureMount, OMNI-TILT, RF-PRO-1B, AFHD-4 are trademarks of PDS Electronics, Inc. No license to use or reproduce any of these trademarks or other trademarks is given or implied. All other brands and product names are the trademarks of their respective owners. Specifications subject to change without notice. 20