Bird-technologies 20-70-26 User Manual

YOU'RE HEARD, LOUD AND CLEAR.8625 Industrial Parkway, Angola, NY 14006 Tel: 716-549-4700 Fax: 716-549-4772 [email protected] www.bird-

but, only at frequencies where moderate to highattenuation occurs, such as at the notch frequency.Because each of the filters in the multi-cavityarran

Bird Technologies Group TX RX Systems Inc.50040030025020015012510075505

Bird Technologies Group TX RX Systems Inc.50040030020010050403020105.04

Bird Technologies Group TX RX Systems Inc.100908070605040.2 .3 .4 .5 .6 .7 .8 .9 1 2 3 4 5 6 7 8 9 10132 - 174 MHz BandAttenuationFreq

Bird Technologies Group TX RX Systems Inc.Voltage RatioPowerRatiodBVolt

Bird Technologies Group TX RX Systems Inc.Return Loss vs. VSWRReturn Lo

8625 Industrial Parkway, Angola, NY 14006 Tel: 716-549-4700 Fax: 716-549-4772 [email protected] www.bird-technologies.com

WarrantyThis warranty applies for one year from shipping date.TX RX Systems Inc. warrants its products to be free from defect in material and workmans

Symbols Commonly UsedNOTEESD Elecrostatic DischargeHot SurfaceElectrical Shock HazardImportant InformationCAUTION or ATTENTIONHigh Vol

GENERAL DESCRIPTIONThe Series-Notch® cavity filter passes a relativelywide band of frequencies (passband) whilesimultaneously rejecting a very

The passband is adjusted with a variable capacitorand the notch depth is changed by rotating the loopplate assembly. One of two input/output ports wil

TUNINGRequired EquipmentThe following equipment or it's equivalent isrecommended in order to properly perform thetuning adjustments for t

(calibrated by factory). Rotating the loop plateassembly and moving the calibration mark above 0causes the notch depth to be increased. It isadjustabl

range of the filter. The air-plate type has a redmark painted on the access barrel and one-half ofthe adjusting screw, when the red marks line upthe m