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EXHIBIT 99.1
SCHEDULE 13G
CUSIP NO. 670198 10
JOINT FILING AGREEMENT
In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act
of 1934, as amended, the persons below agree to the joint filing on behalf of
each of them of a Statement on Schedule 13G, and any and all amendments thereto,
with regard to the beneficial ownership of Common Stock, $0.001 par value, of
Nucentrix Broadband Networks, Inc., a Delaware corporation, and further agree
that this Joint Filing Agreement be included as an exhibit to any such joint
filing. In evidence thereof the undersigned hereby execute this Agreement as of
the 10th day of April, 1999.
QUAKER CAPITAL MANAGEMENT CORPORATION
By:/s/ ▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇▇
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▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇▇, President
QUAKER CAPITAL PARTNERS I, L.P.
By: Quaker Premier, L.P., its general
partner
By: Quaker Capital Management
Corporation, its general partner
By:/s/ ▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇▇
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▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇▇,
President
QUAKER PREMIER, L.P.
By: Quaker Capital Management
Corporation, its general partner
By:/s/ ▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇▇
------------------------------------
▇▇▇▇ ▇. ▇▇▇▇▇▇▇▇▇▇,
President
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