Відео

Please please make one for the M-array system.

thanks for your video. Why are the phases of the SBO signal different? As far as I know, only one of the 150 Hz or 90 Hz signals is phase-reversed, but the image shows -150, +90, -90, and +150. time 11:02-11:22

Please make a video on M-array GP.

i need thales 7010 portable ils/vor receiver, please kindly share your contact to me. thanks

ローカライザー務安国際空港。

Is there a book you recommend to learn this?

He usado tres tipos de PIR, el primero era de la empresa Philips, y los otros Wilcox y el de Thales. Instrumento muy útil.

This brings back memories of ILS concepts I took 36 years ago. I also spent 5 years in Flight Inspection out of Atlantic City. BTW the localizer service volume is +-35 deg at 10 NM and +- 10 degrees at 18 miles either side of the localizer centerline. I only say this because at one time there were offset localizers at some airports like Martin State in Maryland.

Absolutely Fantastic video! I felt like I was there again. I l appreciated seeing inside the shellter. I recon that the next generation of ILS will not use shelters, everything will be out by the antenna same as the DU/CU, as it will all be so small and probably almost just remove and replace as a unit. What a great and fun series, I had a blast my friend! And I liked the music too!

Absolutely Fantastic video! I felt like I was there again. Nice accurate cuts and attention to details to make the installation top-notch. Thank you again. Great series.

Absolutely Fantastic video! I felt like I was there again. Great continuation of the series. RF nulls are important thats for sure.

Absolutely Fantastic video! I felt like I was there again. Appreciate the in-depth training you provided!

Absolutely Fantastic video! I felt like I was there again. Appreciate the planning you put in.

Absolutely fantastic video! I felt like I was there again. Appreciate your work!

Absolutely Fantastic video! I felt like I was there again. Appreciate you!

Thanks, I had never seen that probe during my AF career (Retired 1996; MSgt T Jones). I am pretty sure in the actual GS-2 antenna the middle one was physically delayed (same difference or end result). The phasing between the 3 antennas in the co-linear array results in a narrower horizontal beam pattern, so less effects from reflections off of stuff to the sides in the fresnel zone.

Why add the 3 dB attenuator? Thanks for doing the video!

very well explained Sir , Thankyou for sharing . i have a question if you could help me with that . i am using a ECal kit for 2 port calibration SOLT , After calibaration insertion loss of -4dB is appearing for S21 measurement . can you tell me why its so ? when i do calibaration with mechanical kit no insertion loss appear while s21 .

how to make ground check points?

Hi, thanks for this information. Can you recommend good books for those who want to read more about these concepts. Thank you once again

This is for technicians not for engineers.

When will there be a sequel?I'm really looking forward to it:)

Nice! Question, purpose for three GS transmitters on the tower? I've always believed the lower antenna was phase shifted as required to minimize terrain bounce. Can you confirm/explain? Thanks.

Thank you for the great video.

Thank you for the great video.

Many many thanks for the great explanation and demonstration, cannot wait to see the rest of this series 👏🏻👏🏻

I really cannot thank you enough for these videos. Yes, as technicians we need to know why SBO is set in quadrature with respect to CSB. I will be anxiously waiting for this video. Also what is meant by in phase and quadrature phase components which we see on the ILS block diagram? Is it an internal quadrature in the transmitter for adjustment of SBO to CSB phase ? God bless you bro

Keep on the good work buddy. Another comment or question, we know that SBO is modulated by the 90Hz added to the inverse of 150Hz tone, so if you may explain why you are presenting SBO as -90 + 150 !!? I really thank you for the great efforts 🙏

I have just a little comment or correction. The vertical coverage for glide path is down to 0.45 (or 0.3) times the commissioned glide angle and up to 1.75 times the glide angle. For a typical 3 degrees glide path these figures are 1.35 and 5.25 degrees respectively

Great content. Thank you so much. Finally, I found an ILS tutorial for technicians 😊 All ILS tutorials here are aimed for pilots

Excellent.

Thanks for the explanation. Are you going to use the GP simulator to see how much to go down?

Thank you. Can you please tel me why they choose 40% depth of modulation in GS instead of 20% used on localizer?

thanks

Perfect

Good work

Great job with the graphics and signals. Very clear explanations. Thanks

Nice clean summary and hit all the most important concepts overall.

Thanks a ton! The rest of my questions (e.g. false glide slopes with/without flipped modulation frequencies, relevant for above GS approaches) I can calculate myself.

Sir my equipment reading rf lo when connecting to antenna for reading signal localizer or glide path, what that mean and how to fix that problem sir?

I think it prudent to add that you are now ready for flight inspection which is necessary to verify that this system is safe in the air. This system cannot be certified without a reference flight check to ensure your ground measurements are proven in the air. If any adjustments are made during flight inspection your monitors will need to be aligned accordingly. Great job!

Side band reference antennas are commonly 3:1 ratio with the bottom antenna at around 7' above the ground top at 21'. Capture effect is 2:1 like NR with the third antenna being an additional 14' above the middle for a total of 42'. The CE middle antenna height provides path angle like the top on the NR.

You should mention the common antenna height ratio for null reference antennas is 2:1 with the bottom antenna being 14' and the top being 28'. Logically if your angle is correct check the height of your top antenna and divide it by 2 and that should put you darn close. 6750.49B is the FAA order that governs this maintenance.

Thanks for your video. What if I need to calibrate the SMA type of connectors. I have the SMA cal kit, but the field fox doesn't provide me neither the SMA connector type nor the cal kit.

Is there another name for (half width points) ? maybe in degrees? not a trick question, just trying to learn more, Thanks

I thought our PIR is way too old, glad we have the same model. Hi from Philippines Air Nav.

Hey man. Great Video! I need to do this on board ship though. Can you do a video on one port cable trimming? Vector Voltmeter option sounds great but I didn't realize it could only be done on short cables. What would you do for a long cable that's already been installed.d

Why did your videos stopped??

I need it, where can I buy it

I love your videos, they're what I've been looking for in UA-cam, I'm studying Electrical engineering and I want to specialize in NAVAIDS, I was wondering if there was any book or any resource that help you study the equipment needed to test out the antennas and what should we be looking for when studying all the nav aids? and sorry for the question, will you be planning to do a similar video for the VOR (CVOR or DVOR)? Thanks again for your videos, they're really awesome, I will share it with my colleagues.