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Table: Nstl Ratings Of Modems And Modem Cards


Technology & You: NSTL RATINGS

TABLE: NSTL Ratings of Modems and Modem Cards

Here are the results of testing on several external and PC Card (PCMCIA)

fax/modems by NSTL, a unit of The McGraw-Hill Companies Inc. All of the modems

can transfer data at 28.8 kilobytes per second (Kbps). Nearly all are based on

the V.34 specification ratified last year by the International

Telecommunications Union (ITU). The V.34 modems "probe" the phone line and

assess its capabilities and quality. The modems figure out the maximum speed

the line will tolerate for error-free transmission and adjust the rate up or

down as warranted.

The accompanying tables rate the modems on how accurately and rapidly they

transfer data under various conditions, how easy they are to use, what features

they offer, and on other variables. The results are compiled into an overall

score, where 10 is the top score possible. The prices are the manufacturers'

suggested prices at the time of testing. Street prices are likely to be much

lower.

Legend:

A= One-way throughput in bytes per second

B= Two-way throughput in bytes per second

C= Features score (10=perfect).

D= Usability score (10=perfect).

MSRP= Suggested Retail Price

EXTERNAL MODEMS

Modem Overall A B C D MSRP

Score

Practical Peripherals

ProClass 288LCD 9.88 5838.89 4934.37 6.45 9.53 $459.00

Hayes Microcomputer

OPTIMA 288 V.FC & Fax 9.13 5846.98 4930.23 4.00 6.58 $579.00

Hayes Microcomputer

OPTIMA 288 V.34 & Fax 9.03 5848.17 4444.57 3.96 6.58 $579.00

Black Box

Modem 3400 (MD880A) 9.01 5552.70 4698.84 5.00 7.06 $895.00

Practical Peripherals

PM288MT II V.34 8.96 5609.12 4725.91 5.75 9.47 $375.00

Maxtech/GVC

XM288E 8.94 5584.07 4732.64 2.91 8.06 $199.00

Hayes Microcomputer

Accura v.34 8.86 5845.55 4261.27 4.00 6.11 $299.00

US Robotics

Sportster V.34 288 8.77 5492.50 4240.21 3.43 8.00 $349.00

Logicode Technology

QUICKTEL 8.67 5508.04 3458.30 6.24 8.06 $279.99

Lectron Pragmatic

DL1428RF 8.73 5464.37 3506.73 3.93 9.06 $200.00

Microcom

Microcom Desk Porte FAST 8.50 5605.20 3600.79 4.04 9.94 $519.00

Motorola

Power 28.8 Data/Fax Modem 8.65 5552.12 4678.81 4.13 8.00 $279.00

Zoom Telephonics

Zoom V.34X 450 8.65 5473.84 3500.61 3.72 9.00 $199.00

CXR Telecom

CXR Telcom 2845-FDF1 8.65 5479.41 4405.24 3.48 7.53 $795.00

Multi Tech Systems

MT2834ZDX-ISI 8.39 5224.59 3977.00 4.58 7.53 $349.00

Zoltrix

V.fast FM ZX288E 8.58 5501.25 3611.17 2.82 9.94 $149.00

Best Data Products

2834FX 8.51 5473.86 3510.50 4.46 7.06 $299.00

PC CARD MODEMS

Practical Peripherals

ProClass PCMCIA 288 9.33 5751.30 4819.14 3.92 7.33 $459.00

Hayes Microcomputer

OPTIMA 288 V.34 & Fax

PCMCIA 9.31 5751.82 4731.50 5.98 5.71 $499.00

Megahertz Corp.

Megahertz V.34 PCMCIA 8.98 5491.17 4352.96 3.19 9.94 $449.00

US Robotics

Sportster 28.8 PCMCIA 8.91 5470.77 4256.08 2.70 7.85 $499.00

TDK Systems

DF2814 PCMCIA 8.52 5484.63 3843.73 3.72 5.39 $499.00


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