Differences

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--- antennas [2015/08/25 10:51] – [commerical antennas] mkie
+++ antennas [2015/12/31 19:14] (current) – [Temporary] liooo
@@ Line 2: / Line 2: @@
 The board has a PCB antenna for the 2.5 GHz ISM Band, for stand alone operation on the Camp Area. **For other frequencies the use of an external antenna is highly recommended.**
+== Internal Antenna
+Have a look at [[antennas:internal|Internal Antenna]] for more details on the internal antenna.
 == How to attach an external antenna
@@ Line 7: / Line 10: @@
 === Temporary
 To improve radio reception a little bit you can just press a thumb against the upper right corner and be a human antenna.
-The most simple real external antenna is a single-wire copper cable (others may also work). This can be pressed against an edge of the little black resistor on the top right corner.
+The most simple real external antenna is a single-wire copper cable (others may also work). This can be pressed against an edge of the little black resistor on the top right corner:\\
 {{:rad1o_7.png?100|}}
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 <note important>**When soldering an antenna or SMA connector, a resistor (R315, 0 Ohm) must be turned 90 degrees or replaced with a bridge, connecting the RF line on the left to the SMA connector pads on the right**</note> (then the 0 Ohm resistor will be sitting on the R314 pads; R314 and R315 share the upper left pad). Use 2 soldering irons - so you can easily move the little resistor.
-The SMA connector should be an edge-launch SMA connector for a PCB thickness of 1.6mm
+The SMA connector should be an edge-launch SMA connector for a PCB thickness of 1.6mm (see [[extension:rfkit|RF Kit]])
-Resistor turned 90 degrees
+Resistor turned 90 degrees:\\
 {{:rad1o_10.jpg?100|}}
-Alternative: Add bridge, remove resistor
+Alternative: Add bridge, remove resistor:\\
 {{:rad1o_11.jpg?100|}}
-Using a soldered copper cable as antenna:
+Using a soldered copper cable as antenna:\\
 {{:rad1o_9.jpg?100|}}
-Adding an SMA connector so that you can connect an external antenna for your specific needs.
+Adding an SMA connector so that you can connect an external antenna for your specific needs:\\
 {{:rad1o_12.jpg?100|}}
-**WARNING: When soldering, don't connect the unpopulated large pads right below the antenna pads to the pads, this may result in blue smoke!** Best to check right after soldering, we did find a few cases of barely visible connection.
+**WARNING: When soldering, don't connect the unpopulated large pads right below the antenna pads to the pads, this may result in blue smoke!** Best to check right after soldering, we did find a few cases of barely visible connection.\\
+{{:antenna_connector_dont_bridge_res_blue_smoke.png?100|}}
 == Building an external antenna