INSTRUCTIONS MODEL AVMR-2 PULSE GENERATOR S.N.: __________________________________________________________________ 2 WARRANTY Avtech Electrosystems Ltd. warrants products of its manufacture to be free from defects in material and workmanship under conditions of normal use . If, within one year after delivery to the original owner, and after prepa id return by the original owner, this Avtech product is found to be defective, Avtech shall at its option repair or replace said defective item. This warran ty does not apply to units which have been dissembled, modified o r subjected to conditions exceeding the applicable specifications or ratings. This wa rranty is the extent of the obligation assumed by Avtech with respect to this pro duct and no other warranty or guarantee is either expressed or implied. TECHNICAL SUPPORT Phone: 613-226-5772 or 1-800-265-6681 Fax: 613-226-2802 or 1-800-561-1970 E-mail: info@avtechpulse.com World Wide Web: http://www.avtechpulse.com __________________________________________________________________ 3 __________________________________________________________________ 4 TABLE OF CONTENTS WARRANTY............................................................... ...............................2 TABLE OF CONTENTS...................................................... ......................4 FIG. 1: PULSE GENERATOR TEST ARRANGEMENT............................5 GENERAL OPERATING INSTRUCTIONS......................................... ......6 PERFORMANCE CHECK SHEET................................................ ............8 Manual Reference: /fileserver1/officefiles/instructword/avmr/AVMR-2-ed4 .doc, created November 17, 2003 __________________________________________________________________ 5 FIG. 1: PULSE GENERATOR TEST ARRANGEMENT +24 V DC 650 mA max 40 dB attenuator Out Sampling AVMR-2 Scope In Trigger Output PRF:  10 MHz (TR, TF HIGH) Pulse Generator  5 MHz (TR, TF LOW) PW: 20 - 200 nsec (max duty cycle of 20%) AMP: +3 to +5 Volts (TTL Levels) __________________________________________________________________ 6 GENERAL OPERATING INSTRUCTIONS 1) The bandwidth capability of components and instruments used to display the pulse generator output signal (attenuators, cables, connectors, etc.) s hould exceed one gigahertz. 2) The use of 40 dB attenuator will insure a peak input signal to the samp ling scope of less than one volt. Note that this unit requires a 50 Ohm load and m ay be damaged if this condition is not met. 3) For high duty cycle operation, it is recommended that the unit be bolte d to a heat sink capable of dissipating at least 15 Watts. 4) When triggering the AVMR-2 from a high speed lab pulse generator it may be necessary to shunt the input to the AVMR-2 by a 50 Ohm resistor to elim inate reflection which may interfere with the operation of the lab pulse gene rator. 5) In general, the source pulse generator trigger delay control should be set in the 0.1 to 1.0 usec range. Other settings should be as shown in the above diagram. 6) W ARNING: Model AVMR-2 may fail if triggered at a PRF greater than 10 MHz or if the duty cycle exceeds 20% or if the PW exceeds 200 nsec. 7) The output amplitude is controlled by means of the one turn potentiomet er (Amp). 8) The output pulse width is controlled by means of the one turn potentiom eter (PW). 9) With the TR switch in the L position, the unit provides an output rise time of 300 psec. With the TR switch in the H position, the rise time is about 3 n sec. 10) The TF switch provides a fall time of 300 psec when in the L position a nd a fall time of 3 nsec when in the H position. 11) The PRF should not exceed 5 MHz when either the TR or TF switches are i n the LOW position. 12) The required output DC offset voltage is applied to the rear panel OS s older terminals ( 50 Volts, 100 mA max). __________________________________________________________________ 7 13) For additional assistance: Tel: (613) 226-5772 Fax: (613) 226-2802 Email: info@avtechpulse.com __________________________________________________________________ 8 PERFORMANCE CHECK SHEET __________________________________________________________________ Document Outline * [1]WARRANTY * [2]TABLE OF CONTENTS * [3]FIG. 1: PULSE GENERATOR TEST ARRANGEMENT * [4]GENERAL OPERATING INSTRUCTIONS * [5]PERFORMANCE CHECK SHEET __________________________________________________________________ References 1. file:///root/tmp.html#2 2. file:///root/tmp.html#4 3. file:///root/tmp.html#5 4. file:///root/tmp.html#6 5. file:///root/tmp.html#8