Hastings Wireless: Antenna Tests
2004 Jul 20 - Brian Kloppenborg
We finally got out in the 98 F weather and started testing on our equipment. We used a Laptop with a Netgear MA401 V2 PCMCIA card for the mobile point and a DWL-900AP+ for the stationary point. We mounted everything to a tripod for testing. A one meter patch cable made from LMR-400 was used.
Devices
DLink DWL-900AP+ Access Point:
24 dBi parabolic grid antenna with N-connector
Home-built 24 dBi omni-directional antenna with N-connector which was later encased in 1" diameter PVC
Results
The results are listed in tabular form below:
| 12 dBi Stock Antenna | Custom Omni | 24 dBi directional | |||||||
| Distance (ft) | Strength | Quality | TX Rate (Mbps) | Strength | Quality | TX Rate (Mbps) | Strength | Quality | TX Rate (Mbps) |
| 0 | 100 | 100 | 2 | 100 | 100 | 2 | 100 | 100 | 2 |
| 25 | 80 | 100 | 2 | 93 | 100 | 2 | 100 | 100 | 2 |
| 50 | 80 | 100 | 2 | 86 | 100 | 2 | 93 | 100 | 2 |
| 75 | 66 | 93 | 2 | 80 | 100 | 2 | 93 | 100 | 2 |
| 100 | 60 | 80 | 2 | 66 | 93 | 2 | 93 | 100 | 2 |
| 125 | 40 | 60 | 2 | 60 | 86 | 2 | 93 | 100 | 2 |
| 150 | 40 | 53 | 2 | 60 | 80 | 2 | 80 | 100 | 2 |
| 560 | 26 | 40 | 1 | 40 | 46 | 2 | 66 | 86 | 2 |
| 650 | N/A | 26 | 40 | 2 | 60 | 80 | 2 | ||
| 720 | 13 | 20 | 1 | 40 | 46 | 2 | |||
| 830 | 13 | 13 | 1 | 40 | 40 | 2 | |||
Here is an aerial photo of the testing area with approximate locations for the distance markers:
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