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add antenna aligning tips 

Tweak zero-distance info per Joe AE6XE.
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Steve Lewis AB7PA 2021-11-12 09:50:22 -07:00 committed by Joe AE6XE
parent d81a3bf466
commit 3aca49ef91
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arednHow-toGuides/dish-aiming.rst
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@ -12,7 +12,7 @@ Practice with Nearby Nodes
If you can drive to within 1/4 mile of an active node, you should be able to pass signals well. At close range the aiming may not be as critical and you could even place a NanoStation or SXTsq panel on your dashboard. Find a public park, open parking lot, or street parking where you have line of sight to a remote node that uses the same frequency as your portable node. Here are some steps you can follow to practice aiming your node.
* In your vehicle, power up your node and plug in your laptop. Disable the wifi interface so the laptop gets its IP address from the node. Open a web browser and use *localnode.local.mesh:8080* to load your node's home page. You will need to have your user name (root) and password to authenticate to the *Setup* display.
* Enter the SSID, Channel, and Channel Width that matches the remote node you are surveying. You can leave the "Distance to Farthest Neighbor" slider on the zero-distance (automatic setting). If you changed any of these settings, click ``Save Changes`` followed by ``Reboot``.
* Enter the SSID, Channel, and Channel Width that matches the remote node you are surveying. Regarding the "Distance to Farthest Neighbor" setting, refer to the node help page or the *Configuration Deep Dive > Mesh RF Column > Distance Setting* section in the **Getting Started Guide** for information. On short paths the zero-distance (automatic setting) may not work well, so you should adjust the slider to a setting close to the estimated distance between your nodes. If you changed any of these settings, click ``Save Changes`` followed by ``Reboot``.
* Now you can do a ``WiFi Scan`` from your node's home page. Put the scan on ``Auto`` refresh and the screen will refresh the scan every ten seconds. The scan list will show remote nodes along with their signal strength, channel number, and SSID. If you have chosen the correct SSID and channel, you should see a connected status if the signal is -87 or stronger. If the channel or SSID doesn't match, you will see a "foreign network" status. There may be other devices on different channels at a particular location. Pick the strongest one and use that channel.
* Once you have a connection with the remote node, quit the WiFi scan and click the ``Charts`` button. You will see a moving graph for the average of all connected stations. In the dropdown menu, choose the remote node you are connected to. Click the *Sound:* ``On`` button, and the pitch of the tone you hear will get higher with greater Signal-to-Noise Ratio (SNR). You may want to adjust the level of the starting tone as well as the tone volume using the sliders below the sound button. You will see the SNR updated every second above the sound button.
* To get the highest tone pitch and the best SNR, turn your radio slowly or even change the car position by driving forward or back a few feet. If the tone stays at one frequency and the chart is no longer changing, you may have lost the signal. Quit the chart and start again.