KR Electronics, Inc. KR Electronics, Inc. www.krfilters.com General Description KR Electronics part number 2987 is a 350 MHz lowpass filter. The filter is an elliptic type filter with a sharp cut-off and 60 dB minimum attenuation. Other bandwidths are available. Please consult the factory. Features Elliptic Lowpass 350 MHz min 1 dB Bandwidth 447 MHz typical 3 dB Bandwidth 60 dB Stopband Attenuation N Connectors 50 Source and Load Typical Performance Overall Response (10 dB/div) 27 Apr 2010 11:16:51 CH1 S31 LOG 10 dB/ REF 0 dB Avg 16 START KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2010, KR Electronics, Inc. 2987, Rev 0, April 27, 2010 1 . 000 000 MHz STOP 3 000 . 000 000 MHz Web Email Phone Fax www.krfilters.com [email protected] (732) 636-1900 (732) 636-1982 Page 1 KR Electronics, Inc. KR Electronics www.krfilters.com Typical Performance Passband Amplitude & Group Delay (1 dB/div & 5 nsec/div) 27 Apr 2010 11:15:00 CH2 CH4 S31 S31 LOG DEL 1 dB/ 5 ns/ REF 0 dB REF 0 s 1 : - . 31870 dB 350 . 000 000 MHz 1 CH2 Markers 2 : -2 . 9965 447 . 500 dB MHz 2 Cor Cor 4 2 START KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2010, KR Electronics, Inc. 2987, Rev 0, April 27, 2010 . 100 000 MHz STOP 500 . 000 000 MHz Web Email Phone Fax www.krfilters.com [email protected] (732) 636-1900 (732) 636-1982 Page 2 KR Electronics, Inc. www.krfilters.com KR Electronics 2987 Specifications Parameter Specification Filter type Lowpass End of Passband (< 1 dB) 350 MHz 580 MHz to 1000 MHz 60 dB min Maximum Input Power to 350 MHz 10 Watts Source and Load 50 Physical Dimensions Notes: 1. Dimensions in inches 2. Rectangular case KR Electronics, Inc. 91 Avenel Street Avenel, NJ 07001 © 2010, KR Electronics, Inc. 2987, Rev 0, April 27, 2010 Web Email Phone Fax www.krfilters.com [email protected] (732) 636-1900 (732) 636-1982 Page 3