Vhf jobs
I am in need of a unique app for Fulcrum which would help me input 2 or 3 coordinates in decimal degrees and their respective bearings to triangulate the location of a VHF transmitter within a wildlife tracking collar. Key Features: - The application should display the located transmitter's coordinates on the Fulcrum map, ideally via a pinpoint or marker. - It should also have the capability to save these specific location coordinates for future reference. - Both manual input and GPS location inputs should be available for the coordinates. Ideal Skills: The ideal freelancer for this project would have in-depth knowledge of app development especially for Fulcrum, a strong understanding of geolocation services and extensive experience in software design to provide an intuitive...
Experience using software to predict coverage between two points or multipoint bands vhf, uhf preferably Mobile Radio or Similar
...an experienced electrical engineer to design an electronic schematic similar to a Gotenna's design. Here's what precisely I am searching for: - The device should primarily function as a communication device. - It should have the capabilities to transmit data at 5 watts over either VHF or UHF. - Users should enter the frequency manually in my app. - The device should connect easily using Bluetooth to an app I am writing for Android and IOS. - This device will need to be battery powered and small so it can be carried by a person on a hike and have a long battery life with weight also in mind. - The device needs to use a mesh network technology to communicate for a few miles using
Results shall be used for an analysis of how much coupling effects between VHF/UHF antenna to ground can be suppressed or even avoided by covering the ground surface under the antenna with absorbing ferrite tiles. The antenna is a quadfilar helix antenna being circular polarised and pointing vertically to the sky. The CEM simulations shall consider several distances under the antenna to the ground or to ferrite tiles of a few centimetres to several meters. Whereas the size of the surface of the required ferrite tiles shall be kept minimal but reaching moderate or good agreement with antenna pattern in free space / without ground.
My team and I need help installing an SDR Communication System on an offroad military vehicle. This specialized system needs to be installed for a key search and rescue mission. The desired frequency range needed is VHF/UHF. We already have a specific brand/model in mind that we would like to be used but are open to recommendations. We look forward to hearing from experienced professionals with experience in the field. On urgent basis we need to tailor the proper documentations (Electrical drawings & BOQ) in max 24hrs after we agree so we can join the bid, the devices are listed in the attachments, car model is Toyota LC 79 series single cap. Requirement: Technical drawings for system integration with the car plus supervision over installation it self, and BOQ
Design and Build - I am looking for a skilled individual to design an RF Direction Finder Circuit. The project requires the following specifications: - Frequency range of sign...Moderate sensitivity The ideal candidate should have experience in designing RF circuits and be knowledgeable in antenna design and signal sensitivity. The project requires a thorough understanding of radio frequency and the ability to work with high precision. The project should be completed within a designated timeline and budget. It must be tunable to detect people transmitting oh handheld VHF/UHF radios. The device needs to be as small as possible so it can be caddied by a drone. I would like a simple output that i can feed into a Raspberry Pi so it can turn the drone to point towards the tr...
hi I need a filter design (receiving only) for VHF and UHF + LNA + RF Switch and a splitter. I'm looking for experienced designers only, with proven projects. also need to design PCB layout. thank you.
I need lightweight, wideband antennas with the following characteristics: Frequency coverage: 200 MHz to 800 MHz Az beamwidth: 90 to 120 degrees El Beamwidth: 20 to 30 degrees Weight: 5 pounds each, max
...design with calculations for a tower arm on a tower for an antenna located 5 feet from the tower. The design should use galvanized square tubing with 2-inch galvanized round tubing welded on the end. The round tubing will form a small vertical "T" to attach the vertical antenna. The project would require a simple drawing for the welder and tower climber and the basic calculations to mount a 12 lb VHF antenna. The antenna is rated at 200 MPH. The exposed area of the antenna is 1.3 Sq Ft. Lateral thrust is 50 lbs at 100 mph. I would like an Engineer with experience in structural support to do the design and shop drawing however this does not need to be stamped by a professional engineer. I will submit the drawing with calculations for approv...
We need : - Hydrodynamics Test - Manufacturing drawings - Stability Test - Reversal Test in case of emergency situation. the fin needs to be heavier in order to keep the capsule...drawings - Stability Test - Reversal Test in case of emergency situation. the fin needs to be heavier in order to keep the capsule on the right side You need to design compartimentation , installing wind turbine and water turbine with the cables and installed the battery accumulator inside. you need to insulated the hull with foam because the water is very cold in Canada you need to install a radio VHF Inside for the emergency and install the antenna inside the fine you need to install light inside You need to install a electric charger in order to recharg the electric jetski in emergency situation (PL...
RF expert is required for a VHF band Direction Finding Project.
This is a client which communicates with Flight Simulators (FSX/P3D/XP11/MSFS/FlightGear), and sends position data to the FSD (Flight Sim Daem...position data to the FSD (Flight Sim Daemon) server. Attached is a concept for the client as well as a plans document explaining in detail what's requested. A flight plan sending function should be implemented, as well as model matching (so other aircraft, i.e. multiplayer aircraft, can be seen in the simulator), and voice communication facilities, for instance on a TeamSpeak server set up with VHF frequencies. An ATC (Air Traffic Controller) mode should also be available which negates the requirement for an active flight simulator connection. A list of active controllers on the FSD server needs to be included so pilots know who to...
...System designer (Hardware and Software development) We are looking for a product development team, electronic systems designer, who specializes in marine electronics navigation systems technology such as AIS, Marine VHF and SSB Radio, Marine Radar, Chartplotter, Fishfinder, GPS Compass, multi-functional imaging technology. Tasks: • Hardware, software and development of marine electronics • R&D Development Tests (FAT) maintenance and improvement • Embedded systems Required Technologies and Tools • PCB design (Altium Designer) • Embedded RTOS (C++) • C# development in Visual Studio • VHF and GNSS, Radar systems Skills: • Hardware design and related programming • Enthusiasm and Commitment • English (Turkish) communication ...
I need a Design, layout board, BOM, and make it ready for a contract manufacturer to build. The modem to physically mount somewhere on top of the main PC board of a land mobile radio such as ICOM, etc. Physically small Modem ( roughly CC size ). To be mounted on top of main board of a VHF radio transceiver.
Hello I am writing on behalf of the city of Annapolis, MD and am trying to establish a VHF automated radio check service for our town located on the Chesapeake bay. I am trying to find or create equipment that can be activated by a caller's signal, record their transmission and then transmit back to the caller with a short message and a recording of the caller's original transmission. I'd like to find someone with expertise who can put this together. Thanks
...(Nimbus 310 Coupe). We were on route from Chichester Marina to Limehouse in London but it developed some faults along the way. In the end we decided to berth it there until these could be resolved. I am currently now paying for both a berth at Limehouse and Sovereign which isn’t ideal and would like to get it resolved as soon as possible. These are the identified major items: Electrical: • VHF not working (only sending but no receiving). • AIS not working • When the throttle is put into reverse the bow thruster kicks in. This some sometimes be disengaged by wiggling the thruster suggesting possibly faulty connection in the thruster handle. • Autopilot not working. • Stern thruster is not kicking in. Mechanical: • Fuel r...
I need to track a radio signal and it is a vlf a elf or a VHF however voice to skull is done , I know where the signal is coming from and I am wondering if my hack rf1 can capture the signal and if so I need help doing it because I know nothing about it
...delays. i want to add LTE(wifii over leaky feeder) to an existing (or new) VHF/UHF leaky feeder network, creating a single mine-wide hyper-efficient communications network that can handle all of the mine’s voice communication and data transfer needs. New, high-bandwidth, low-power communications networks can be set up automatically LTE-ready, or LTE functionality can be easily added to existing already installed networks by replacing existing 2-way BDAs (bi-directional amplifiers/comms boxes). Migration of existing networks to LTE is very simple. The BDAs can be installed by any qualified electrician, and the system makes use of the existing leaky feeder/radiating cable network, preserving the functionality of VHF/UHF equipment and systems that are already in us...
Requirements. Experience developer with experience in vhf, gps and noise environment and Altium. Sign a NDA Job. Design a industrial PCB with power supply to a modem and intergrade it in a complete PCB. The pcb will be like a raspberry hat but for the Tibbo Project PCB (TPP3), Gen 2 main board. Follow guidelines from the manufacturer of a modem. Design power supply circuit in the PCB using the design guide from the manufacturer. Supply all necessary files to get the PCB produced and assembled. What I supply. Library for the modem. Layout for the size of the PCB to interface with TPP3 main board.
...change management principles, Deep knowledge of IPV4, IPV6, Fiber Optic Technology standard, requirement, system analysis, design, installation, procurement of fiber optica connections, Provide design calculation and drawings for construction of telecom projects involving microwave communication, channel banks, SONET multiplexer, teleprotection, fiber optic networks, C band/Ku band satellite, Tetra/VHF/UHF mobile radio, Power Line Carrier, -48 VDC Power systems, and IP/MPLS networks. Report on progress such that other may update project documentation, such as: Project Schedule, Project Execution Plan, Cost and Progress Reports, etc. Prepare Bill Of Material and coordinating staging and testing of equipment racks prior to shipping for installation, Prepare test plans and commissio...
My name is Casey Weires. I own and operate a marine electronics, Marine electrical, And marine systems business. BOATS. My wife's name is Sabrina and thats where the C&S comes from. Most of my work is Electronics upgrades on boats from the small 18ft up to the 60-70ft range. GPS, Sonar, Radars, VHF ship shore radios, Stereos. Marine systems are considered bilge pumps, water pumps, nav/safety equipment, ect. Its not uncommon to get a full refit from start...all new equipment also. Im located in North Carolina Newport, 8 miles from the Atlantic Ocean and intercoastal water way. Im looking for a logo that is on the personal side that includes some pics/parts of personal style and then a feature of my work. My vision in a nut shell is standing at the wheel of a boat looking for...
Mobile Adhoc Network. A smart phone based Adhoc network using VHF radio as Transmitter and receiver.
I am looking for someone to help me convert my 25 free channels from Toronto (or anywhere) to a remote location that has very limited channels and distribute to multiple TVs on existing older cables. Ideally person has a sense of the OTA The remote location has fibre internet. Analog to digital and back to ana...anywhere) to a remote location that has very limited channels and distribute to multiple TVs on existing older cables. Ideally person has a sense of the OTA The remote location has fibre internet. Analog to digital and back to analog likely BROADCAST TV CORD CUTTING CUT THE CORD GET FREE TV HDTV ANTENNA OVER THE AIR TV UHF ANTENNA VHF ANTENNA thanks
I am looking to have someone design me a schematic that will operate like the device in the link below. It will be able to pair to a phone app (My App I am developing) and take data from the phone and send it over a 5 Watt VHF radio in the device. I do not need the UHF radio only VHF. I do want to add a GPS device to it as well, and also an Iridium chip to be able to send data out over the Iridium satellite network.
...an easy to use device that can interface between the helicopter input for the headset and a VHF radios input for mic and output for earphone. So what needs to happen is as follows. 1. The device should be able to convert the output of the handheld VHF radio to the MIC input for the helicopter. (This needs to be adjustable for volume). 2. The device should be able to convert the output of the helicopter for the headset earphones to the input for the Mic on the VHF radio input. 3. a Relay / method to activate the PTT of the VHF radio from the device. This will facilitate communication in very remote areas where helicopters are used for aerial support and being unable to communicate with VHF radios on the ground. When quoting for this projec...
1) dvbt modulator -hdmi to rf over the air design 2) UHF VHF signal booster 3) long range broadcast antenna We need this system manufacturing with pcb design
PCB Layout Design in Altium Designer: -Board Dimensions (mm): 92x92 mm -Number of components ~250 pcs -Components Placement: Top & Bottom -Special Routing (High speed signals, RF...): The board is RF, Digital, and Power mixed signal. Please follow the standards for such type of board. 50Ohms impedance matching is required for RF circuitry of RX-VHF and TX-UHF sheets. Frequency of operation is within 145-148MHz for RX-VHF and 435-438 MHz for TX-UHF. More details will be provided upon request.
I have a VHF amplifier board that needs to be powered UP! so that the signal transmission will cover a long distance and currently its covering a very short distance.
I have a VHF amplifier board that needs to be powered UP! so that the signal transmission will cover a long distance and currently its covering a very short distance.
Dears We are an automation company based in Greece. For the small ship business area, we would like to develop or to buy if exists: High power online UPS, 12V 8A 100W, 50Ah. Main battery input to UPS: 24VDC or/and 12VDC Emergency battery: Output 12VDC 8A, feeding one VHF transmitter As per SOLAS requirements: Emergency battery A) Must be charged from empty to full charge in less than 10 hours. B) Must supply the load for 6 hours continuously minimum after main power loose. The photo of a very old design but same functions is just for good understanding.
need design uhf and vhf antenna for clear picture reception
...entertainment and education , lighting as well charge their phones wherever they are in the country. Product details; WHAT’S IN THE BOX for our 22” LED Digital Solar Tv System. • 1x 22" tv set with inbuilt smart lithium ion battery powering the Tv for 10 hrs daily. • 2x 3W LED solar bulbs and 6m connection cables with own switch. • 1x 30W solar panel with cable and mounting bracket • 1x Smart antenna VHF/UHF • 1 complete multi-tool with light screwdriver. • 1x Tv stands. • 1xTv manual/user guide with user friendly remote control and dry cells. We are currently expanding across Africa hence we are seeking experienced sales gurus to help Us connect with high value strategic off-grid solar distribution retail partners,NGOs ...
...entertainment and education , lighting as well charge their phones wherever they are in the country. Product details; WHAT’S IN THE BOX for our 22” LED Digital Solar Tv System. • 1x 22" tv set with inbuilt smart lithium ion battery powering the Tv for 10 hrs daily. • 2x 3W LED solar bulbs and 6m connection cables with own switch. • 1x 30W solar panel with cable and mounting bracket • 1x Smart antenna VHF/UHF • 1 complete multi-tool with light screwdriver. • 1x Tv stands. • 1xTv manual/user guide with user friendly remote control and dry cells. We are currently expanding across Africa hence we are seeking experienced sales gurus to help Us connect with high value strategic off-grid solar distribution retail partners,NGOs ...
...entertainment and education , lighting as well charge their phones wherever they are in the country. Product details; WHAT’S IN THE BOX for our 22” LED Digital Solar Tv System. • 1x 22" tv set with inbuilt smart lithium ion battery powering the Tv for 10 hrs daily. • 2x 3W LED solar bulbs and 6m connection cables with own switch. • 1x 30W solar panel with cable and mounting bracket • 1x Smart antenna VHF/UHF • 1 complete multi-tool with light screwdriver. • 1x Tv stands. • 1xTv manual/user guide with user friendly remote control and dry cells. We are currently expanding across Africa hence we are seeking experienced sales gurus to help Us connect with high value strategic off-grid solar distribution retail partners,NGOs ...
Hello, The VHF Radio system will have a single-sided / half-duplex 1 / 25Watt output transmitter built-in GPS and AIS Receiver system. Frequency range 155.500 MHz - 163.275 MHz Protocol A and D Class and Hand type (to support 1-36Watt Output power) 3 different models DSC NMEA0183 2 ports (input: 1, output: 1), NMEA2000 has 1 port. Thanks
...role in the maritime market. As a vital part of our product development team we are looking for an electronics designer. Tasks: • Hardware and software development of marine electronics • Maintenance and improvements of Factory Acceptance Tests (FAT) • Embedded Systems Technologies and Tools required • PCB design (Altium Designer) • Embedded RTOS (C++) • C# development in Visual Studio • VHF and GNSS, Radar systems Skills: • Hardwaredesign and related programming • Enthusiasm and Commitment • Communication in German and English both in writing and orally • Interest in maritime activities • Hands-on mentality Formation/Experience: • Minimum bachelor’s degree (university or university of applied sci...
Hi, i am looking for someone that can create a list of all italian marinas (turistic ports) looking in internet some characteristics (es. telephone, address, number of berths etc.). I need someone that pays attention to details and speak italian. *** ONLY ITALIAN SPEAKERS AND READERS *** You should identify on Google ...should identify on Google maps the main TURISTIC MANINAS and PORTS (an example of Tuscany is provided in the document) and report following information: 1) Name of the port 2) Type of port 3) Total berths 4) Transit berths 5) Country 6) Region 7) Zone 8) Cod_zone (automatic from "zone") 9) Prov (main city) 10) Cod_prov (automatic from "prov") 11) City 12) Address 13) CAP 14) Phone 15) Email 16) VHF 17) Help_phone (additional phone for emergenci...
From 140, the ports appear, till the page no. 445. 1 port represents 1 entry in Excel. For each port (like OCEAN VILLAGE MARINA BAY), I would like to create the following columns and add the data from the ebook: 1. Port name 2. Coordinates 3. Location details 4. Description 5. VHF 6. Berths 7. Shelter 8. Data 9. Facilities 10. Phone 11. Email 12. Website 13. Remarks 14. Navigation Example of a page:
From 140, the ports appear, till the page no. 445. 1 port represents 1 entry in Excel. For each port (like OCEAN VILLAGE MARINA BAY), I would like to create the following columns and add the data from the ebook: 1. Port name 2. Coordinates 3. Location details 4. Description 5. VHF 6. Berths 7. Shelter 8. Data 9. Facilities 10. Phone 11. Email 12. Website 13. Remarks 14. Navigation Example of a page:
From 140, the ports appear, till the page no. 445. 1 port represents 1 entry in Excel. For each port (like OCEAN VILLAGE MARINA BAY), I would like to create the following columns and add the data from the ebook: 1. Port name 2. Coordinates 3. Location details 4. Description 5. VHF 6. Berths 7. Shelter 8. Data 9. Facilities 10. Phone 11. Email 12. Website 13. Remarks 14. Navigation Example of a page:
...using Adobe Digital Editions. I can open the file from my laptop, but when I send it to my colleagues, they got the following error: From 140, the ports appear, till the page no. 445. For each port (like OCEAN VILLAGE MARINA BAY), I would like to create the following columns and add the data from the ebook: 1. Port name 2. Coordinates 3. Location details 4. Description 5. VHF 6. Berths 7. Shelter 8. Data 9. Facilities 10. Phone 11. Email 12. Website 13. Remarks 14. Navigation Some of them have only a few ones completed. If they are not completed, leave the cells empty. ______________________ I converted the .acsm file into .pdf using Adobe Digital Editions. I can open the file from my laptop, but when I send it to my colleagues, they got
-connect to vhf antenna rasperry pi -collect Ais Data -dedicate location where is rasperry via gps -And streaming all Data (gps And AIS ) via udp port or send data to static IP
select single VHF frequency or scan multi frequencies on VAD
We are looking for technicsl information on hardware for FM Radio channel. Required detail are as given below: 1) Provide the Site Name, National Grid Reference (Exxxxxx Nyyyyyy), Site Height, Antenna Height, Proposed ERP and Antenna Pattern for each of the proposed VHF Band II transmission sites that are required to provide coverage to City and County while minimising overspill coverage to neighbouring areas. 2) Provide a rationale for the proposed transmission plan. This should include a description of the total coverage provided, highlight areas that may receive marginal or poor coverage and explain why this proposal represents an efficient use of spectrum. 3) Provide details of any networking arrangements envisaged.
The MatLab model for direction finding will estimate the im...geo-location of the emitter The following assumptions will be used in developing the model: Implement the Ellipsoid TDoA method and Cross Correlation Technique for estimating Time Difference of Arrival. Path loss propagation model for dense urban, suburban and rural regions. Space Shuttle Radar Topography Mission (SRTM) 1 Arc-Second Global Digital Elevation Data Applicable for Broadcast UHF/VHF Frequency Bands The model will simulate Geolocation Accuracy with ability to change the following scenarios: 1. Distance between TDOA sensors and target emitter 2. Elevation difference between TDOA sensors and target emitter Both the above cases, should at a minimum be run under the following conditions: Dense Urban and Rur...
...some of the product differentiators as indicated on the provided PDF. It would be great to have a few different variations as well. We plan to put the image out on a website. Here is a Walmart Example of Hero Product Image with other details added to it. 1) Example brochure - This is our try at creating it, but we need help making it look more professional and more creative. 2) Novi Security Graphics - All of the graphics that you can select from (you can use your own graphics as well). 3) Product Images (Sensor and App)...
I repair and i do programming to all private Communications radios mobile radios UHF and VHF and portable radios. 20 euros plus parts. Please we receive by shipment and we send.
hello, im looking for someone to design and build arduino AIS transponder for sea use (VHF).
The two input files are from gnuais on Linux that uses ALSA as the sound input method from a VHF FM radio the project requires that the functions from the provided fmdemod.c replace the ALSA functions in input.c
