ZoomAir 11Mbps Wireless PC Card

By Tim Higgins | August 07, 2001
Page 1 of 1

Model: 4100

Pros:
- 64 and 128 bit WEP with no throughput hit
- Good performance vs. range
- Comes with Sygate Internet sharing software

Cons:
- Windows only
- So-so client utility

The ZoomAir 11Mbps PC card is your basic 802.11b PC card that uses the Intersil Prism II chip set and has a non-detachable, unmovable antenna. The antenna is flat and won't interfere with the adjacent PC card slot, either above or below it.

NOTE: The PCI version of the card comes as a separate PCI adapter and PC card, but the PC card has an SMA style connector with cabled antenna.

There's one "Link" LED on the antenna section, which shines steadily when the card detects a signal from another 802.11b station and blinks when it can't. The LED doesn't flicker to indicate network activity.

Setup and client management for the ZoomAir is similar to other PRISM II based cards, such as the SMC2632W and D-Link DWL-650, that use the Neesus client utility, so refer to either of those reviews if you need details.

Product Stats

View a summary of the ZoomAir 11Mbps Wireless PC Card's wireless capabilities.

Performance

I ran the ZoomAir through the Qcheck test suite, using an SMC 2655W Access Point as the test partner.

Test Conditions:

- WEP encryption: DISABLED
- Tx Rate: Automatic
- Power Save: disabled

Firmware/Driver Versions:

AP f/w: 1.4f4
Wireless client driver:
0.29.3.3
Wireless client f/w:
unknown

Test Description	Qcheck Transfer Rate (Mbps) [1Mbyte data size]	Qcheck Response Time (msec) [10 iterations 100byte data size]	Qcheck UDP stream [10S@500Kbps]
Test Description	Qcheck Transfer Rate (Mbps) [1Mbyte data size]		(Actual throughput- kbps)	(Lost data- %)
AP to Client - Condition 1	3.9 [No WEP] 3.9 [w/WEP]	3 (avg) 5 (max)	499	0%
AP to Client - Condition 2	3.8	3 (avg) 4 (max)	499	0%
AP to Client - Condition 3	3.8	3 (avg) 5 (max)	499	0%
AP to Client - Condition 4	3.8	3 (avg) 5 (max)	499	0%

(Details of how we tested can be found here.)

Comments: The data shows consistent performance over all tested conditions. No SNR measurements could be recorded, since the Client application did not provide them, but the Client Manager's worst case reading for Condition 4 was "Fair" for both signal quality and strength.

No throughput degradation was found with either 64 or 128 bit WEP enabled.

Summary

The ZoomAir PC card stacks up well against the ever-growing field of 802.11b client cards, with good performance in all tested range conditions and no WEP-enabled throughput degradation. You can find it as low as $100 on-line, and that includes bundled Sygate 3.1 Internet sharing software as an added bonus.

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