User's Manual

68P80801E35-B 5/1/2002 3
EBTS System Manual - Vol 2 Parts and Suppliers
RF Attenuators
Several RF attenuators are needed at a site to ensure proper receive adjustments.
The attenuators are used at the LNA sites to offset the excess gain from the Tower
Top amplifiers, to balance the receive path, and to attenuate the BMR signal path.
Use the following specifications when choosing vendors:
❐ Specified frequency range
❍ 800 MHz systems – requires attenuator specification to include
806-821 MHz range
❍ 900 MHz systems – requires attenuator specification to include
896-901 MHz range
❐ 1 dB increments
❐ 0.5 dB accuracy or better
❐ Female N connector / Male N connector
Alan Industries, Inc.
745 Green Way Drive
P.O. Box 1203
Columbus, IN 47202
Phone: [phone]
812-372-8869
Fax: [phone]
Huber + Suhner, Inc.
19 Thompson Drive
Essex, VT 05451
Phone: [phone]
Fax: [phone]
Internet: www.hubersuhnerinc.com
JFW Industries, Inc.
5134 Commerce Square Drive
Indianapolis, IN 46237
Phone: [phone]
Fax: [phone]
email: JFW [e-mail]
Pasternack Enterprises
P.O. Box 16759
Irvine, CA 92713
Phone: [phone]
Fax: [phone]
RF attenuators are also needed for test equipment. The attenuators must be used
between frequency reference equipment, service monitors, and the Motorola
EBTS equipment. The following attenuators should be used at the site
during optimization:
❐ Female BNC connector / Male BNC connector, 10 dB attenuator (1 W)
between the Rubidium Standard and the R2660 Communications Analyzer.
Refer to the System Testing section.