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Antenna mounting

Old 08-29-2021, 12:06 PM
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The Professor
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Default Antenna mounting

When mounting the receiver, the destructions specify the antennae need to be 90, the antenna is covered in heat shrink, with a wider section approx 7mm diameter.Is the wider section the entire antenna, or is that a base coil with a further piece of wire extending up the inside of the heat shrink?

I ask as I cannot fit the full heat shrink length inside my plane at 90

Last edited by The Professor; 08-29-2021 at 12:07 PM. Reason: Adding a picture (hopefully)
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Old 08-29-2021, 03:43 PM
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firemanbill
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The purpose of mounting them at 90 degree angles is to prevent shadowing and both of the antennas being blocked by, say the battery, from the Tx. If you take care to orient them in such a way that that will not happen then you are good. I have a couple sailplanes where my only option was to run one forward and one backward inside the fuse and they work fine that way.
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Old 08-29-2021, 03:46 PM
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The Professor
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Brilliant, just wondering if I can shorten the extra heat shrink? It would make the mounting easier and tidier.....
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Old 08-29-2021, 03:53 PM
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yes if the heat shrink extends beyond the actual antenna wire that is fine. just be careful not to cut the antenna! That would be very bad. lol
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Old 08-29-2021, 05:10 PM
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I have been trying to see down the hole for any antenna wire ....

I am not sure if the antenna is a single coil with no trailing lead, or is it is a base loaded coil with a flying lead...... I guess I will have to use the scalpel and perform an minor autopsy 😁
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Old 08-29-2021, 06:47 PM
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Default It is a base coil

A bit of autopsy shows it is a base loaded antenna.....

So I could only trim it by 1/4 inch maximum 😩

I will try and find another way to mount thi
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Old 08-30-2021, 09:30 PM
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How big is your plane, what size battery? if it is not a monster with a big 6-8s pack one forward one back should be fine. RANGE CHECK!!! And do it from different angles to make sure you don't have any blockage.
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