Here’s a new short video I made based on facts and research (1.5 mins long). Please check it out and my other RF video shorts. I’d appreciate your support by subscribing and liking:
Can Cell Towers Cause Cancer? Myth of Fact!
Ever wonder what that dish on the cell tower? Here is a short video explaining it. Feel free to check my other RF video shorts and subscribe. Thank you 😄
Just published a new video on Passive Intermodulation (PIM), one of the most overlooked causes of poor RF system performance.
What PIM is and why it occurs
Real spectrum analyzer traces from the field
How to identify PIM
Practical mitigation and prevention techniques
Please check it out and feel free to subscribe: https://youtu.be/Hw_9Z5cZ6HA
Thank you! 🙏
Fellow engineers,
My channel now has plenty of RF and Telecom short videos. Please check them out and subscribe. Thank you so much for your support! www.YouTube.com/@RFEngineeringHub.
Every component and RF/Telecom equipment explained in this short video from the red/white obstruction light to the shelter and earthing. The Technology Behind Every Cell Tower Explained (Visual Tour)
Please don’t forget to subscribe for more telecom videos. Thank you 🙏🏻
Hello fellow engineers,
I launched a YouTube channel about two weeks ago focusing on practical RF knowledge—covering the RF & Telecom fundamentals, real-world scenarios, and field experience I’ve gained working with clients over the years.
You’ll find clear explanations and hands-on insights on topics including LTE, 5G, spectrum analyzer measurements, drive testing, Fiber Optics, DAS, Microwave, and much more. My goal is to build a reliable RF resource library that supports working professionals, technicians, and anyone looking to deepen their understanding of the RF world. I believe in knowledge sharing.
I plan to post a new video every week. I am up at 12 videos now. I’d really appreciate your support in helping me propel in this domain. Please support me by subscribing, liking, and sharing with your colleagues who might benefit.
Here’s the channel: https://www.youtube.com/channel/UCmzllEtJmLgLp7PryH8KgEw
On the other hand, I have been developing interactive RF Calculators on the side: Fresnel Zone, InterModulation, Free Space Pathloss, and 4G Throughput Calculator. Next is 5G throughput calculator. Here is the link: https://mohamadhaidar.com/rf-calculators/
Thanks in advance for the support. I am happy to connect and discuss ideas.
Ever wonder how a single cell tower manages to connect with thousands of mobile phones simultaneously? It all comes down to clever access schemes like FDMA, TDMA, and CDMA. I've just uploaded a new video that breaks down the mechanics behind these technologies, explaining exactly how the network splits up time, frequency, or code so that everyone stays connected. Check out the full breakdown and subscribe to the channel for more deep dives into wireless engineering.
How do1000s of Mobile Phones Connect to the Same Cell Tower at Once? FDMA TDMA CDMA Explained
https://youtu.be/h558cdJXCqY
#CDMA #FDMA #TDMA
hello fellow engineers!
what is return loss? why it matters? how does it impact your wireless communication system? i made a video explaining all of that following it by a real life example of an antenna sweep. Please don’t just skip this post, support my YouTube channel by watching the video: Return Loss & Antenna Sweeps Explained | How to Test Antennas Step-by-Step Guide
and subscribing to my channel. if you like to reach out to me for topics or connecting, I’m always happy to! thank you so much for your support in advance ❤️
Hello fellow RF Engineers. I would like to take a moment to thank the redditers who already subscribed to my YouTube channel (www.YouTube.com/@RFEngineeringHub). I am forever grateful. For the rest, I'd really like you to subscribe. Here are some of the topics I cover and will be covering in upcoming weeks:
RF concepts: Access Schemes, such as CDMA, TDMA, FDMA, Fresnel Zone for Microwave Engineers, upcoming 6G compared to 5G.
RF Tool Guides: Like iBwave, infovista Planet
RF Test Equipment: Viavi, Anritsu Site Master
RF Interview Questions: Most asked questions at interviews and the proper answer.
and many more!
If you are an RF Engineer, it is a must subscribe opportunity. I plan to make it the biggest video library of RF Engineering content on YouTube. Please support me grow and invite others. I am also open to ideas about topics you like me to cover.
Thank you in advance.
hi Redditors,
I have a question regarding Astro P25 Trunked and Conventional 800 MHz.. I am being asked to perform BER and RSSI testing on the talk in and talk out. it is a Motorola system. I’m not an expert in the field.
how do you preform the tests?
my understanding is that is rent a PCTEL IBFlex scanner and drive around the tiles measuring the BER and RSSI after configuring the simulacra repeaters to transmit a 1011 hz pattern, right? then record all measurements on the scanner and post process them.
what about the talk in test? is there a way we can program the Motorola portable to transmit the pattern back to the RPTR and measure BER and RSSI?
my rational thinking tells me that only fixed locations will be tested for talk in based on reverse link budget deduced from the talk out. or is there an equipment that can be rented to continuously key in (transmit back to the repeater)?
same question for the conventional radio as well, except that there will no BER but only SSI measurements.
any guidance in that regards is greatly appreciated.
thank you
hi everyone,
I’ve just launched a YouTube channel focused on practical RF knowledge—covering the fundamentals, real-world techniques, and field experience I’ve gained working with clients over the years.
You’ll find clear explanations and hands-on insights on topics including LTE, 5G, spectrum analyzer measurements, drive testing, and core telecommunications concepts. My goal is to build a reliable RF resource library that supports working professionals, technicians, and anyone looking to deepen their understanding of the RF world.
I plan to post a new video every week. If this sounds useful, I’d really appreciate your support—subscribe, like, and share with colleagues who might benefit.
Here’s the channel: www.YouTub.com/@RFEngineeringHub
Thanks in advance for the support. Looking forward to connecting with more of you through the content.
Hi everyone,
I developed a video with the top questions and answers asked at Telecom interviews for Fiber Optics. Please check out this video and subscribe for more upcoming videos. I am always happy to hear your feedback and comments. Do not hesitate to reach out to me. Check out my channel for more videos. #Fiber #fiberOptics #Telecom
how does the RF signal propagate? what roles do reflection, diffraction, scattering and absorption play? which ones are good and which ones are bad? all are explained simply in this 5-min video. please subscribe to my channel and let me know if there is something you like me to tackle next.
Why RF Signals Don't Travel in Straight Lines | Reflection, Diffraction, Scattering & Absorption
These two metrics are among the most commonly used measurements in wireless communications, yet they are often misunderstood or used interchangeably.
I created my own YouTube video to explain the difference in a simple conference room analogy.
If you've ever performed RF troubleshooting, drive testing, coverage analysis, or network optimization, this topic is fundamental. Let me know your thoughts and make sure you check my other videos and subscribe for more videos.
#RFEngineering #WirelessEngineering #5G #LTE #Telecommunications #CellularNetworks #RadioFrequency #NetworkOptimization #RFDesign #WirelessCommunications
I recently created a short video that explains one of the most fundamental concepts in telecommunications and networking: bandwidth.
In less than 2 minutes, the video covers:
✅ What bandwidth really means
✅ How it relates to data-carrying capacity
✅ Why higher bandwidth enables more simultaneous data transmission
✅ A simple highway analogy that makes the concept easy to visualize
Whether you're new to telecommunications, networking, wireless communications, or simply looking for a quick refresher, this video breaks down the topic in a straightforward and easy-to-understand way.
https://youtu.be/yCtPHUfhrtg
hi,
Im just curious to learn how everyone’s choice to pursue engineering came to fruition. is that something you wanted to pursue since your youth? Did your parents influence your choice? are you liking it as you pursue it now?
please state your discipline when you’re answering: electrical, civil, computer, mechanical…
thank you 🙏🏻
hi RF engineers,
ever came across PIM in the field? what is it? how do you mitigate it? here is a link of a video I made explaining it providing real examples from a LMR system I worked on in the 220 MHz. If you like my simplified explanation, please subscribe and share. thank you for your support in advance
Passive InterModulation (PIM) Explained in 8 minutes: No Math Required
do you ever confuse the terms Antenna Efficiency and antenna gains? I made a short video (5mins) explaining a difference with a real life analogy. don’t forget to participate in the quiz at the end below the video to test your knowledge. please like, share and subscribe to support my efforts and encourage me to do more. as usual, thank you
#antennas #rf #rfengineering
Antenna Gain vs Efficiency Explained (5 mins)
As an RF engineer, I’m pretty sure you g it’s come across several of the dB metrics, such as dBi, dBc, dBm, dBuV, and dBd. What’s the difference between them and where is each one used? I made a short video on YouTube (among others on my channel). Please encourage by subscribing and liking! Truly appreciate it. Thank you 🙏🏻
Stop Confusing dB, dBm, dBi, dBc and dBµV — RF Decibels Explained (5 mins)
