We use NetIQ's Qcheck to
test Wireless Access Points and clients.
Here's a diagram of the test setup:
"Beige box" Celeron
300A, 128MB, Win98
"Compaq 5451, AMD K-6
500MHz, 92MB, Win98SE
Compaq 1650 (Pentium 266),
Test Details - Qcheck Method
Testing is done in recently constructed wood frame two
floor residence. Home has heating/cooling metal ductwork
throughout. The Access Point (AP) is placed on a table
away from metal cabinets and RF sources in a corner lower
level room for all tests. For each of the four conditions,
the Qcheck suite of tests
is run between the wireless client and the Ethernet client.
Starting in June 2001, we
started recording Signal, Noise, and Signal to Noise
Ratio (SNR) results using the ORiNOCO Client Manager
Link Test. The SNR numbers will be shown along
with the Qcheck test results. The numbers recorded
are the "This Station" readings. The
SNR readings will only be shown in Access Point or Wireless
router reviews, since the D-Link DWL1000AP manager program
doesn't provide SNR readings.
- Condition #1: AP and wireless
client in same room, approximately 10 feet apart.
- Condition #2: Client in upper
floor room directly above AP, approximately 15 feet apart.
No metal ductwork between AP and client.
- Condition #3: Client on same floor
as AP but in another room approximately 50 feet away.
Walls, but no metal ductwork between the client and AP
- Condition #4: Client on upper
floor at opposite end of residence, approximately 55 feet
away. Walls, floor, and probable metal ductwork
between AP and client.
Reviews done before January 2001
used either the File Transfer method alone, or the File
Transfer method plus some of the Qcheck tests. If
Qcheck is not mentioned in the review, then the File Transfer
method was the only one used.
Testing is done by copying an approximately
20Mbyte file from client to client using a Windows drag-and-drop
file copy. No other significant CPU-intensive applications
are running on either machine.
The file icon is dragged to the destination
window and timing is done via stopwatch from the time the
file is dropped to the time that the "Copy Progress"
window disappears. Tests are run multiple times and
the results are averaged.
Transfer speed is calculated using this formula:
(Filesize in MBytes / Total Xfer time in seconds)
The fastest transfer speed that this setup can test is