Helicopter Downlink Antennas for live broadcast
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Helicopter Downlink Antennas for live broadcast
If you get an STC/mod for downlink antennas for live broadcast like this for example:
Crosstube Antenna Mount AS350 / AS355
Is the rest of the equipment considered 'role' equipment and not needed to be covered by STC/mod? Do broadcast companies generally bring along all the gear and just need the heli to have the antennas to downlink via?
How about ELA/EM considerations.....
Crosstube Antenna Mount AS350 / AS355
Is the rest of the equipment considered 'role' equipment and not needed to be covered by STC/mod? Do broadcast companies generally bring along all the gear and just need the heli to have the antennas to downlink via?
How about ELA/EM considerations.....
We used to bring and fit the whole kit, including aerials and actuators.
This was in the days before I was a pilot and I can’t remember what the exact legal situation was, but on our installations, the aircraft engineer associated with the helicopter signed it all off.
If we needed a different aerial for a particular reason, we just swapped it over.
So I think the basic mounting(s) must have been CAA approved but the exact aerials and layout used on a particular day were not set in stone, as long as they were mounted securely and wirelocked etc.
What project do you have in mind? I used to do this sort of thing a lot.
This was in the days before I was a pilot and I can’t remember what the exact legal situation was, but on our installations, the aircraft engineer associated with the helicopter signed it all off.
If we needed a different aerial for a particular reason, we just swapped it over.
So I think the basic mounting(s) must have been CAA approved but the exact aerials and layout used on a particular day were not set in stone, as long as they were mounted securely and wirelocked etc.
What project do you have in mind? I used to do this sort of thing a lot.
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@Uplinker yes we are looking at how we modify the aircraft and how the 'role equipment' will link to the antennas for the broadcast and what, if any, EMC/ELA considerations we need to make....actually the manufacturer has a very good SB that basically says, more than 25A electrical draw, 30W EM emission or HF aerial then you need to do an EMC assessment - this doesn't need to be part of the mod just needs to be carried out separately if you can't meet that criteria above. At this stage its looking like a minor mod as no significant effects on W & B, electrical load, structure etc and yes looking for a mod that covers multiple different sizes and shapes of antenna under a specified range for the antenna/co-ax then the rest is 'role' equipment which doesn't draw power from the aircraft system and doesn't need to be covered by STC/mod
The
along with a distance from a FADEC is right out of AC 27-1B here in the US.
Is that the STC manufacture or the airframe manufacture? Just wondering.
US wise, this is a pretty open STC, I'm surprised there is not more about EMC testing.
Even though the 'role' equipment does not draw power from the aircraft, I assume there would have to be some testing for EMC, to verify there is no effect to the required aircraft systems.
25A electrical draw, 30W EM emission or HF aerial
Is that the STC manufacture or the airframe manufacture? Just wondering.
US wise, this is a pretty open STC, I'm surprised there is not more about EMC testing.
Even though the 'role' equipment does not draw power from the aircraft, I assume there would have to be some testing for EMC, to verify there is no effect to the required aircraft systems.
blue:
If I understand your question, you are looking to develop a STC/Mod to install an external media broadcast downlink antenna on a helicopter?
And then want to know if the equipment that connects to your STC'd antenna mount needs to be included in the mount STC?
I have no recent experience with modifications on your side of the pond but from what I have seen with "similar" installs/STCs/Mods I believe it might be a major alteration or modification for both the mount and the attached equipment.
A quick look on the EASA website found these which may point you in the right direction to answer some of your questions:
https://www.easa.europa.eu/the-agenc...ionics-changes
https://www.easa.europa.eu/system/fi...sification.pdf
FYI: With today's digitally controlled aircraft just about every new STC, etc. I've seen lately that has any possible EMI generation requires some sort of interference certification.
Even a simple PulseLight module requires an user based EMI check for every new installation and that STC only controls the existing landing light circuit. So I would think a RF downlink would be close to the top.
Good luck.
W1
If I understand your question, you are looking to develop a STC/Mod to install an external media broadcast downlink antenna on a helicopter?
And then want to know if the equipment that connects to your STC'd antenna mount needs to be included in the mount STC?
I have no recent experience with modifications on your side of the pond but from what I have seen with "similar" installs/STCs/Mods I believe it might be a major alteration or modification for both the mount and the attached equipment.
A quick look on the EASA website found these which may point you in the right direction to answer some of your questions:
https://www.easa.europa.eu/the-agenc...ionics-changes
https://www.easa.europa.eu/system/fi...sification.pdf
FYI: With today's digitally controlled aircraft just about every new STC, etc. I've seen lately that has any possible EMI generation requires some sort of interference certification.
Even a simple PulseLight module requires an user based EMI check for every new installation and that STC only controls the existing landing light circuit. So I would think a RF downlink would be close to the top.
Good luck.
W1
