# Tag Info

## New answers tagged antenna-system

3

BNC work well, make a positive connection, and are simple to crimp. I would suggest that you purchase a pigtail rather than manufacturing one because the SMA connectors are a beast to crimp. As far as the cables themselves, provided they are still in good shape, both RG-58 used by 10Base2 and RG-8 used by 10Base5 are 50 ohm impedance coax, which is exactly ...

4

BNC is fine. SMA is probably more common in this application, but BNC is widely available, and easier to swap around than SMA. Since this is receive-only and the pigtail will be short, coax loss isn't a real concern either — you probably want to choose something fairly thin and flexible to minimize the stress on the fragile MCX connector.

3

I'd go for drilling the hole and having a shorter cable. Go for the thicker cable (RG223 I think). This is a permanent installation, it pays to go the extra mile on this one. Make absolutely sure you have a ground where the antenna enters the house that is also connected to the utility ground via a low-impedance path. If I can recommend a website for good ...

1

$Z_{fs}$ (space) is resonant at all frequencies due to $\varepsilon_0$ (farads/meter) and $\mu_0$ (henries/meter). Thus it will have no reflection. Free space is lossless and the signal only gets weaker because the energy spreads out over a larger and larger sphere. The /meter part causes space to develop a resonant velocity (speed of light). But all ...

1

The likelihood of an antenna interfering with another antenna diminishes as their respective frequencies get further apart. Typically, if they are on different non-harmonic bands, it won't be an issue, and if they are harmonic, the higher frequency antenna might cause interference on the lower frequency antenna, not the reverse. Dishes are probably above ...

2

Of course there can be interference but I would guesstimate the probability at about 30%, so that 70% chance that there will be no interference - basically have to try to find out. If there is interference you can move the antenna a little bit and that might even fix it or install a filter that might fix it, or use less power on certain frequencies. I would ...

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