rev. 8/3/07 legend + 25 oc + 85 oc - - - - - - -40 oc rf amplifier model QBH-8981 available as: QBH-8981 specifications absolute maximum ratings ambient operating temperature .............. -40 oc to +100 oc storage temperature ............................... -62 oc to +125 oc case temperature .................................................. +125 oc dc voltage .......................................................... +16 volts continuous rf input power .................................. +15 dbm short term rf input power ...... 50 milliwatts (1 minute max.) maximum peak power .................... 0.5 watt (3 sec max.) features low noise figure: 1.9 db typical high output power: +21 dbm typical operating temp.: - 40 oc to + 85 oc environmental screening available characteristic typical min/max ta= 25 o c ta = -40 o c to +85 o c frequency 30 - 200 mhz 30 - 200 mhz power vdc +15 +15 ma 28 35 max. noise figure (db) 1.9 3.0 max. vswr in 1.4:1 2.0:1 max. out 1.2:1 2.0:1 max. reverse isolation (db) -11 -9 max. gain (db) 8.1 7.0 min. gain flatness db (p-p) 0.20 0.75 max. gain vs. temperature 1 db compression (dbm) +21.0 +19.0 min. typical performance data notes: 1. specifications are guaranteed when tested in a 50 ohm system. 2. all specification ratings are based on a dc supply voltage tolerance of +1%. note: care should always be taken to effectively ground the case of each unit. spectrum microwave 2144 franklin drive n.e. palm bay, florida 32905 (888) 553-7531 fax (888) 553-7532 spectrum microwave 2707 black lake place philadelphia, pennsylvania 19154 (215) 464-4000 fax (215) 464-4001 www.spectrummicrowave.com typical intermodulation performance at 25 o c second order harmonic intercept point........+55 dbm (typ.) third order two tone intercept point.............+40 dbm (typ.)
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