JFW Industries, Inc. Phone: 317-887-1340 [email protected] www.jfwindustries.com SPECIFICATION SHEET JFW MODEL 75P-154 RELAY PROGRAMMABLE ATTENUATOR Frequency Range DC-1000 MHz Impedance 75 Ohms nominal Attenuation Range 0-63.75 dB in 0.25 dB steps Attenuation Steps 0.25, 0.5, 1, 2, 4, 8, 16, and 32 dB VSWR 1.4:1 maximum Attenuation Accuracy 0.25 dB ± 0.05 dB 0.5, 1, and 2 dB ± 0.1 dB 4 and 8 dB ± 0.2 dB 16 dB ± 0.3 dB 32 dB ± 0.4 dB Accumulated Error ± 0.5 dB or 1.5% (whichever is greater) Insertion Loss 2.2 dB maximum 0.75 dB typical at 500 MHz 1.50 dB typical at 1000 MHz RF Input Power 0.5 Watts average Switching Speed 10 milliseconds DC Supply +12 Vdc @ 30 mA per relay (8 relays total) Control (8 lines) TTL Low for Thru Path TTL High for Attenuation DC Connector 3M #3793-5303 RF Connector BNC, F, N, or TNC female Operating Temperature Range 0ºC to +70ºC Physical Size See outline drawing 092-2213 ECR/ECN # DATE REV 03/04/2004 13974 Page 1 of 1 03/20/2007 APPR / DATE ECR/ECN # TRS 03/04/2004 A TRS 03/20/2007 JFW FORM E-7-F REV F DATE REV APPR / DATE