
Closed
Posted
I run an analog broadcasting facility and need an experienced radio engineer to work directly on our transmitter and tower-mounted antenna system. Your focus will be the RF chain—from the exciter right through to the radiating elements—making sure we’re operating at peak efficiency and fully within our licensed technical limits. You’ll have access to current schematics, field strength and SWR readings, plus any service manuals we hold. Using your own measurement gear (spectrum analyser, dummy load, vector VSWR meter, etc.) or equivalent tools on-site, I’d like you to: • Diagnose and resolve any signal quality or coverage issues linked to the transmitter or antenna • Retune, align and verify power output and reflected power figures • Document every step so future maintenance is straightforward Acceptance criteria • Final VSWR no higher than 1.3 : 1 across the authorised bandwidth • Power output within the tolerance specified on our licence • A concise service report with before/after readings and clear next-step recommendations If you’ve repeatedly handled analog FM or AM transmitters and antenna arrays and can demonstrate solid results, I’d be keen to bring you on board quickly.
Project ID: 40570201
21 proposals
Remote project
Active 6 hours ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
21 freelancers are bidding on average $15 USD/hour for this job

With a strong background in electrical and embedded systems engineering, I, Sardar Hasnain, am the perfect fit for your Analog Radio Transmitter Specialist position. Over the years, I've garnered a wealth of experience working with complex RF systems and ensuring peak performance - all within the confines of regulatory limitations. With your complete schematics, field strength, and SWR readings complemented by my own measurement gear (e.g., spectrum analyzer, dummy load, vector VSWR meter), I can promise optimal diagnosis and resolution of any signal quality or coverage issues. My proficiency expands beyond just hardware; I pride myself on meticulous documentation with concise service reports that include comprehensive "before-after" readings and clear next-step recommendations. These reports not only make future maintenance straightforward but also serve as invaluable insights into your facility's operations. I believe my bidirectional communication skills combined with my diverse range of technical competencies including antenna design, circuit design, electrical engineering, electronics, PCB layout and signal processing, place me in an advantaged position to deliver exceptional results for your project.
$20 USD in 40 days
8.3
8.3

Your priority is maximizing transmitter efficiency, signal quality, and antenna performance while ensuring full compliance with your licensed operating limits. With 12+ years of RF and electrical engineering experience, I can diagnose transmitter and antenna issues, analyze VSWR, reflected power, impedance matching, and coverage performance, then provide practical recommendations to optimize the complete RF chain. My background includes RF systems, power electronics, transmission equipment, antenna integration, and technical troubleshooting for industrial and communication systems. I will document every finding with clear before/after measurements, verify transmitter performance against your specifications, and provide a detailed service report with actionable recommendations for reliable long-term operation. Regards, Engineer Muhammad Usman RF & PCB Pro Expert
$12 USD in 40 days
6.8
6.8

Hi, how are you doing? I went through your project description and I can help you in your project. your project requirements perfectly match my expertise. We are a team of Electrical and Electronics engineers, we have successfully completed 1000+ Projects for multiple regular clients from OMAN, UK, USA, Australia, Canada, France, Germany, Lebanon and many other countries. We are providing our services in following areas: Antenna Design (CST, HFSS) Embedded C Programming. VHDL/Verilog, Quartus/Vivado, LabVIEW/ Multisim/PSPICE/VLSI MATLAB/SIMULINK Network Simulator NS2/NS3 Microcontroller like Arduino, Raspberry Pi, FPGA, AVR, PIC, STM32 and ESP32. IDEs like Keil MDK V5, ATmel studio and MPLab XC8. PLCs / SCADA PCB Designing Proteus, Eagle, KiCAD and Altium IOT Technologies like Ethernet, GSM GPRS. HTTP Restful APIs connection for IOT Communications. Also, we have good command over report writing, I can show you many samples of our previous reports. Kindly consider us for your project and text me so that we can further discuss specifically about your project's main goals and requirements.
$20 USD in 40 days
6.1
6.1

Hi, Thanks for sharing the requirements. I can support RF transmitter and antenna-system troubleshooting for your analog broadcasting facility, including the transmitter RF chain, exciter alignment, output power verification, reflected power/SWR checks, and antenna/feedline performance review. My approach would be to first review the schematics, service manuals, licensed operating limits, current field-strength readings, SWR data, power-output history, and any known coverage or signal-quality issues. I would then inspect the RF chain from exciter to final output, transmission line, matching network, grounding, connectors, and tower-mounted antenna system to identify loss, mismatch, drift, or alignment problems. I have experience with RF systems, analog transmitter diagnostics, antenna matching, VSWR optimization, spectrum checks, power measurements, and technical documentation. Final delivery would include tuning/alignment notes, before-and-after measurements, VSWR and power-output verification, and a concise service report with maintenance recommendations. Regards,
$8 USD in 40 days
5.8
5.8

Hi, I have 10+ years of RF and embedded hardware experience, including analog RF subsystems, impedance matching, power amplifier stages, transmission lines, and antenna integration. Approach ✅ I will review the transmitter, feedline, and antenna documentation together with existing SWR, field strength, and power measurements to identify the source of mismatch or performance degradation. ✅ I will verify exciter output, PA linearity, harmonic content, forward/reflected power, and transmission line integrity before retuning the RF chain for minimum reflected power and maximum efficiency. ✅ I will validate final performance across the licensed operating bandwidth, confirm compliance with output power requirements, and document all measurements, adjustments, and maintenance recommendations. Questions ✅ Is the system an FM or AM transmitter, and what are the operating frequency, licensed power level, and antenna configuration (single bay or array)? ✅ What are the current forward power, reflected power, VSWR, and field strength readings under normal operating conditions? ✅ Have any recent hardware changes, feedline repairs, lightning events, or antenna maintenance occurred before the signal degradation was observed? Best, Yaroslav
$25 USD in 40 days
5.4
5.4

My name is Julian Mendez and I am a seasoned RF engineer who has successfully tackled complex projects in the field for over 8 years. One of my areas of expertise aligns well with your project demands; I have an extensive background working with analog radio transmitters and antenna arrays. During my career, I have consistently demonstrated the ability to optimize system performance, align output power within predefined limits, and eliminate signal quality or coverage issues like you've described. What sets me apart from other contenders is my commitment to concise documentation. Throughout my career, I have placed a high premium on maintaining clear and comprehensive records for all steps taken in a project - essential considering our focus is to ensure future maintenance is straightforward. Moreover, communicating effectively and efficiently with both technical and non-technical stakeholders has been a crucial element in my past successes; I believe this skill of mine makes me highly suitable for your team which comprises multidisciplinary professionals. Let me bring my reliable hardware solutions to your analog broadcasting facility and help you achieve peak efficiency
$12 USD in 5 days
4.4
4.4

Dear Client, Most bids here will say, "I can troubleshoot your RF transmitter." But optimizing an analog broadcast system involves several hidden challenges: RF power efficiency, antenna matching, VSWR, impedance tuning, reflected power, EMI, signal quality, and regulatory compliance. PCB Must Innovations can help you optimize your transmitter using a risk-first approach, not just a repair approach. With 30 years of electronics and RF design experience, our focus is to improve system performance, maximize coverage, and reduce reflected power while ensuring reliable operation. ✅ Where we will add value: 1. Complete RF chain review from transmitter output to antenna system. 2. VSWR, impedance matching, power output, and reflected power analysis. 3. Practical recommendations with documented measurements and service reports. ✅ Suggestion: Before making hardware adjustments, review the transmission line, connectors, antenna matching network, and grounding. Small corrections can significantly improve efficiency and reduce reflected power. Profile: https://www.freelancer.in/u/electronicsdone ✅ Questions: 1. Is the system FM or AM, and what is the operating frequency and power level? 2. Are the latest VSWR, field strength, or spectrum measurements available? OOPS, Character Limit Issue. Please message me in the chat section so I can cover more aspects of your project.
$16 USD in 40 days
6.5
6.5

Best Analog Radio Transmitter RF Engineer! ⭐⭐⭐⭐⭐ Hi, When I saw your Analog Radio Transmitter Specialist project, it reminded me of several RF transmitter, antenna tuning, and industrial communication projects I've successfully delivered. These included RF signal chain optimization, impedance matching, antenna feed design, EMI reduction, power amplifier integration, and PCB layouts focused on maximizing efficiency, minimizing reflected power, and ensuring stable long-term operation. ✅ I have 11 years of experience in RF electronics, analog hardware design, embedded systems, PCB development, power electronics, and RF troubleshooting. ✅ I'm skilled in diagnosing RF systems, analyzing SWR/VSWR, and documenting improvements for reliable maintenance. Before outlining the best approach, may I ask: 1. What is the operating frequency and transmitter output power? 2. Is the system based on FM, AM, or another analog broadcasting standard? Two quick suggestions: ✅ Optimize the matching network and antenna feedline to reduce reflected power and improve RF efficiency. ✅ Verify antenna tuning and impedance matching to achieve a VSWR below 1.3:1 while maintaining stable output across the licensed bandwidth. Freelancer doesn't allow me to message first, so please feel free to reach out. I'd be happy to help optimize your RF system for reliable, standards-compliant performance. Kind regards, Avi Gupta Quality is never an accident.
$20 USD in 40 days
3.0
3.0

Hi, I'd be happy to help optimize your analog broadcasting system. I have experience with RF systems, transmitter tuning, antenna performance, and electronics troubleshooting, with a strong focus on signal quality and regulatory compliance. I can review your transmitter and antenna system, diagnose RF performance issues, verify power output and VSWR, and provide clear recommendations to improve efficiency and coverage. You'll receive a detailed service report with before-and-after measurements, findings, and maintenance recommendations to support future operation. I understand the importance of staying within licensed operating limits and delivering reliable broadcast performance. I'm ready to get started as soon as you provide the system details. I look forward to working with you. Thanks
$15 USD in 40 days
0.0
0.0

You need an analog RF engineer to keep your transmitter and tower antenna system delivering clean, on-licence coverage—fixing the full RF chain from exciter through radiating elements. My plan is to troubleshoot using your current schematics plus the field strength and SWR history, then verify with calibrated RF test gear (spectrum analyser, dummy load, vector VSWR meter) on-site. I’ll align and retune the output stage, confirm power and reflected power, and adjust matching networks/tower feed connections to bring VSWR to a maximum 1.3:1 across the authorised bandwidth. Where issues affect coverage or signal quality, I’ll trace them step-by-step (exciter settings, RF drive chain, antenna interface, and load conditions), document before/after measurements, and include practical next-step recommendations for maintenance.
$12 USD in 7 days
0.0
0.0

Need an RF engineer to troubleshoot and realign your analog transmitter + tower antenna chain to achieve clean output within licensed limits. I’ll work end-to-end from the exciter through the radiating elements, using your existing schematics, field strength notes, and current SWR/power readings. On-site I’ll bring measurement gear (spectrum analyser, dummy load, vector VSWR meter, appropriate RF test loads/attenuators) or use equivalent instruments to confirm performance and isolate issues fast. I’ll diagnose signal quality and coverage problems, then retune/align the RF chain, verify forward power and reflected power, and document before/after states. Acceptance is clear: final VSWR ≤ 1.3:1 across the authorised bandwidth and output power within your licence tolerance. You’ll receive a concise service report including measured data, likely root causes, and recommended next maintenance steps so your team can repeat checks confidently.
$12 USD in 7 days
0.0
0.0

I bring an RF-but-systems mindset: I’m used to closing the loop between hardware behavior and measurable performance. I’ll treat your analog chain like a power electronics system—verify stability, quantify losses, then tune for clean output within licensed limits. My background in designing efficient conversion and control electronics helps me troubleshoot at the component level and confirm results with instrumentation. On-site, I’ll work from the exciter through the feedline to the radiating elements: measure spectrum/occupied signal, map VSWR with a vector VSWR meter, and use dummy-load/signal substitution to isolate transmitter vs. antenna faults. I’ll retune/align, adjust power and reflected power, and verify alignment against your SWR and field-strength readings, documenting every step with before/after plots and clear next actions. To ensure compliance, my target is final VSWR ≤ 1.3:1 across the authorised bandwidth and power within licence tolerance.
$12 USD in 7 days
0.0
0.0

Is your analog coverage issue coming from the exciter chain (modulation/power) or from the antenna match—where a small drift can push VSWR above spec? I can work directly on your transmitter and tower-mounted radiating elements, staying within your licensed technical limits, using field-ready RF measurement tools (spectrum analyser, dummy load, vector VSWR meter) or yours as provided. I’ll start with a structured RF audit: before/after power, reflected power, and SWR across the authorised bandwidth, then retune/align the RF chain components to restore stable output. Where needed, I’ll verify matching networks, cable/feeder integrity, and adjust for peak efficiency from exciter through to the antenna interface. You’ll receive a concise service report with step-by-step actions, logged readings, and clear next-step recommendations. Can you share the current schematics and authorised frequency range so we can schedule an on-site test immediately?
$12 USD in 7 days
0.0
0.0

FM/AM transmitters are most often “broken” at the borders: reflected power rises quietly, efficiency falls, and coverage shifts before anyone notices. I’ll tune your analog RF chain with measurement-first discipline—from exciter output through the tower-mounted antenna—using your schematics plus on-site tools (spectrum analyzer, dummy load, vector VSWR meter, and power/SWR checks). I will diagnose signal quality and coverage issues, then retune and align the transmitter and matching network to bring VSWR to ≤1.3:1 across the authorized bandwidth and confirm output power within your license tolerance. Every adjustment will be logged with before/after readings, including reflected power trends, so maintenance and future verification are straightforward. I’m Sankar Das; while my background is embedded systems, I’m meticulous with analog performance and signal integrity and I’m comfortable working procedure-by-procedure with manuals and field data.
$12 USD in 7 days
0.0
0.0

HI, KINDLY READ THROUGH MY PROPOSAL I understand you need the entire RF chain, from exciter to antenna, accurately tuned, verified, and documented to achieve compliant output, low VSWR, and reliable coverage. Phase 1: I will inspect the transmitter, feedline, and antenna using your schematics and field measurements. Phase 2: I will diagnose RF losses, retune the system, and correct reflected power issues. Phase 3: I will verify output power, bandwidth, and final VSWR with calibrated test equipment. Phase 4: I will document every adjustment with before/after readings and maintenance recommendations. I have repeatedly serviced FM transmitter systems, antenna arrays, and RF alignment projects with measurable performance improvements. • Complete RF diagnostics • VSWR and power verification • RF tuning and alignment • Detailed service report Which transmitter model and operating frequency are installed? Is the antenna array already accessible for testing? Are the latest SWR and field-strength readings available? I'm ready to begin immediately and discuss the project in detail.
$15 USD in 40 days
0.0
0.0

Hi, I carefully read your project description and understand that you need assistance with diagnosing and optimizing an analog broadcasting RF system, including the transmitter, transmission line, and antenna. I have a strong academic background in RF engineering, electromagnetics, transmission lines, and antenna design. I have successfully designed and optimized 5 GHz and 8.2 GHz microstrip patch antennas using Ansys HFSS as part of my engineering projects and completed an EduSkills internship in Electromagnetic Analysis. During these projects, I analyzed impedance matching, return loss, radiation patterns, and antenna performance while documenting the complete design process. Although my experience is primarily in RF simulation and antenna design rather than field maintenance of broadcast transmitters, I learn quickly, work methodically, and can assist with RF analysis, documentation, interpreting measurements, and technical troubleshooting. I would like to know: Which frequency band and transmitter power level are you operating? Will this work be performed remotely using your measurement data, or is on-site support required? I would appreciate the opportunity to discuss your requirements further. Thank you.
$12 USD in 30 days
0.0
0.0

Hi, there! I am a broadcast radio engineer with extensive hands-on experience tuning and maintaining analog FM and AM transmission systems, including transmitter exciters, PA stages, and tower-mounted antenna arrays. I can perform a complete RF chain analysis using my own spectrum analyser, dummy load, and vector VSWR meter to diagnose and resolve signal quality or coverage issues, retune for optimal efficiency, and verify power output and reflected power figures. I will document every step with before/after readings, alignment adjustments, and final VSWR and power measurements, ensuring your system operates within licensed technical limits and meets the acceptance criteria of ≤1.3:1 VSWR. I can deliver a concise service report with clear next-step recommendations. I am ready to start immediately upon site access. Best Regards!
$10 USD in 40 days
0.0
0.0

Hi there, nice to meet you. Your project is a strong match for my experience in RF systems, antenna integration, PCB design, and wireless communication hardware. I can analyze the complete RF chain from the exciter through the transmission line and antenna system, identify performance issues, and optimize the installation for maximum efficiency while maintaining compliance with licensed operating limits. I will review the transmitter, feedline, matching network, grounding, antenna tuning, and existing field measurements. Using spectrum analysis, VSWR/return-loss measurements, power verification, and RF troubleshooting techniques, I can locate impedance mismatches, excessive losses, interference sources, and antenna tuning issues before recommending or implementing corrective actions. I can support the complete troubleshooting and optimization process from initial measurements through final validation and documentation. I would be happy to review your current transmitter specifications, operating frequency, antenna type, and existing VSWR/field-strength reports before starting.
$12 USD in 40 days
0.0
0.0

Henderson, United States
Member since Mar 8, 2026
$10-30 USD
$10-30 USD
₹1500-12500 INR
$750-1500 USD
$10-80 AUD
₹600-1500 INR
₹12500-37500 INR
$250-750 USD
$5000-10000 USD
$10-30 USD
$30-250 AUD
₹1500-12500 INR
$1500-3000 USD
₹12500-37500 INR
$14-30 NZD
$10-80 AUD
₹12500-37500 INR
$10-50 USD
₹12500-37500 INR
$10-30 USD
$30-250 USD
$30-250 USD