Antenna cable advice requested


#1

I’ve been running a Pi3 in the attic with the attached FA antenna for some time. But I think I have a place I can put the antenna outside that, based on a quick check, will have good reception and not invoke the ire of the HOA. What I’d like to do is sneak a flat cable through a window (raise the window, pass the cable through, close the window; I’ve done this with flat Ethernet cables). Is it possible to do this successfully with an antenna cable? I’m ok if there is a small degradation in signal as a result. Ideally I’d like it to be up to 20’ or so. If this can be done what type of cable and connectors would be required. Obviously I know nothing about this so thanks for any help.


#2

Use this under the window:

Then RG6 for you nearest Walmart store on each side of the window to the end points.

There will be losses, but it’s still better than being offline.


#3

Thank you, I’ll look into that!


#4

Oh yes, for adapters…you’ll need an N male to F female, and F female to SMA male.


#5

Come in via a roof vent maybe? Be sure to come in from the low side of the vent otherwise water will follow the cable into the attic.


#6

I’ve got the flat cables on order. I’ll dig through my stash and see if I already have any of those adapters.


#7

Suggest you try the flat cable in-place with your existing setup before going to the effort of rearranging everything - there can be a lot of loss at 1GHz, which might outweigh any benefit from moving the antenna


#8

Here are some good low-loss cables: https://smile.amazon.com/gp/product/B00H9II8Q4

Just remember that to get low loss in coax cables at 1090 Mhz, 1.090 GHz, takes a thick cable, size matters.


#9

Hi
I use this cable with adaptator


#10

I don’t trust at all those flat cables, at 1GHz frequency. I am curious to see what results will get the new setup, when replaced in place.


#11

Inside the flat protective jacket is a short length of RG174 or similar.
I used to use a few for VHF and up, with one on a satellite feed (~1GHz).
The short length means it ‘shouldn’t’ cause too much degradation to the system.


#12

Probably depends on how hard you smash the coax with the window.


#13

image

The one below is not good

image

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#14

That is my experience with the copper colored version, too, it did not really work very well at all.


#15

When squashed in a window, all signal will be shorted and grounded through the capacitance formed between conductors and metallic window sill.

image


#16

Should had installed PVC (or wood) window sills :smiley:


#17

Yes. It ‘does’ need to be treated appropriately.

Yuck - never seen that sort. It’d be ok for AM broadcast, but not much else.

Your saying it’s not suitable for people living in trailer parks?