INSTRUCTIONS MODEL AVMR-2-P-OT-M1 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................................................ ............7 Manual Reference: /fileserver1/officefiles/instructword/avmr/AVMR-2-P-O T-M1-fig.doc, created November 30, 1999 __________________________________________________________________ 5 FIG. 1: PULSE GENERATOR TEST ARRANGEMENT 40 dB attenuator +24 V DC Out + Sampling AVMR - Scope In Trigger Output Pulse Generator PRF:  1.0 MHz PW: > 10 ns AMP: +3 to +5 Volts __________________________________________________________________ 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 ten gigahertz. The module should be bolted to a heat sink capab le of dissipating about 10 Watts. 2) The use of 40 dB attenuator will insure a peak input signal to the samp ling scope of less than one volt. 3) In general, the source pulse generator trigger delay control should be set in the 0.1 to 1.0 us range. Other settings should be as shown in the above di agram. 4) The Model AVMR pulse generator requires a 50 Ohm load. 5) W ARNING: Model AVMR may fail if triggered at a PRF greater than 1.0 MHz. 6) The output pulse width is controlled by means of the one turn potentiom eter (PW). The pot should initially be set maximum clockwise and the pulse width adjusted using an oscilloscope. Note that the output duty cycle must n ot exceed 10% (eg. 100 ns at 1.0 MHz). 7) The output pulse amplitude is controlled by means of the one turn poten tiometer (AMP). The pulse width may change by several nanoseconds as the output amplitude is reduced from maximum to minimum. Therefore, it is conveni ent to first set the desired amplitude and then set the desired pulse width. 8) Some properties of the output pulse may change as a function of the amp litude pot setting. For some demanding applications, it may be desirable to u se a combination of external attenuators and the amplitude pot to achieve th e desired output amplitude. 9) The output DC offset is variable from 0 to ±5 Volts using the one turn “OT” control. The DC offset potential appears at the rear panel “OS” solder terminal. 10) For additional assistance: Tel: (613) 226-5772 Fax: (613) 226-2802 Email: info@avtechpulse.com __________________________________________________________________ 7 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#7