Aether Systems Announces Q3 2004 Release and Conference Call Information.

OWINGS MILLS, Md. -- Aether Systems (Nasdaq:AETH) will release its Q3 2004 results after market close on Tuesday, November 2, 2004.

A conference call is scheduled for Wednesday, November 3 at 8:30 a.m. Eastern. To join the call, please use the following numbers:

Dial-in numbers: 800-441-0022. Ask for Aether Systems.

A replay of the call will be available until November 24, 2004. The recording will begin approximately one hour after the completion of the call.

Replay numbers: 800-839-0860

Access code: 1098

This call is being webcast by CCBN and can be accessed at Aether's web site at www.aethersystems.com.

The webcast is also being distributed over CCBN's Investor Distribution Network to both institutional and individual investors. Individual investors can listen to the call through CCBN's individual investor center at www.companyboardroom.com or by visiting any of the investor sites in CCBN's Individual Investor Network. Institutional investors can access the call via CCBN's password-protected event management site, StreetEvents (www.streetevents.com).

About Aether Systems

Aether Systems' Mobile Government business provides wireless and mobile data solutions that increase efficiency and productivity for the Mobile Government market. Aether has agreed to sell its Mobile Government business segment and plans to focus on the management of a leveraged portfolio of mortgage-backed securities that it is now building. Aether began its mortgage-backed securities business earlier this year. For more information, please visit www.aethersystems.com