Front/Back End Specifications

Front/Back End Specifications

Bunch-by-bunch front/back end systems from Dimtel, Inc. currently exist in several versions: FBE-178L, FBE-500L, and FBE-500LT. LT variant has three front-end channels for full three planes of feedback. Differing specifications are indicated in the table below, when appropriate.


Parameter FBE-178L FBE-500L FBE-500LT
Reference frequency (MHz) 178.55 500
RF input level (dBm) 0
Reference output loss (dB) 3.5 6.5


Parameter FBE-178L FBE-500L FBE-500LT
Detection frequency (MHz) 1428.4 1500
Maximum operating input level (V peak) 9.3
Absolute maximum input level (V peak) 14
Attenuation range (dB) 0–31.5
Nominal output 190 mV peak-to-peak (-10.4 dBm) 780 mV peak-to-peak (+1.8 dBm)
Output filter 5th order Bessel low-pass
3 dB bandwidth (MHz) 140 500
Baseband pulse width (ns) 3.8 1.9
Phase shifter range (deg) >360
Phase shifter resolution (deg/step) 0.25


Parameter FBE-178L FBE-500L FBE-500LT
Carrier frequency (MHz) 892.75 1000 1000 or 1500
Input level (mV) ±250
Attenuation range (dB) 0–31.5
Maximum output level (Vin=250 mV, 0 dBm ref.) (dBm) 4.5 10
Output filter 3rd order Bessel low-pass 5th order Bessel band-pass
3 dB bandwidth (MHz) 1130 660
Phase shifter range (deg) >360
Phase shifter resolution 0.01–0.21
This website uses cookies. By using the website, you agree with storing cookies on your computer. Also you acknowledge that you have read and understand our Privacy Policy. If you do not agree leave the website.More information about cookies
products/specs/fbe.txt · Last modified: 2011/07/05 05:36 by dimtel
© 2008-2023 Dimtel, Inc.