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Summary of Contents for BIRD THRULINE 4450
- Page 1 IN STRUC TION BOOK OP ER ATING IN STRUC TIONS WITH PARTS LIST MODEL 4450 THRULINE WATTMETER ®...
- Page 2 LIMITED WAR RANTY All prod ucts man u fac tured by Seller are war ranted to be free from de fects in ma te rial and work man ship for a pe riod of one (1) year, un less oth er wise spec i fied, from date of ship ment and to con form to ap pli ca ble spec i fi ca tions, draw ings, blue prints and/or sam ples.
- Page 3 THRULINE WATTMETER ® © Copy right 1994 by Bird Elec tronic Cor po ra tion In struc tion Book Part Num ber 920-4450-1 Rev.B THRULINE® is a reg is tered trade mark of Bird Elec tronic Cor po ra tion...
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Page 5: Safety Pre Cau Tions
Safety Pre cau tions Safety Pre cau tions The fol low ing are gen eral safety pre cau tions that are not nec es sar ily re lated to any spe cific part or pro ce dure and do not nec - es sar ily ap pear else where in this pub li ca tion. -
Page 6: Model 4450 Thruline Wattmeter Cau Tion State Ments
MODEL 4450 THRULINE WATTMETER CAU TION STATE MENTS The fol low ing equip ment cau tions ap pear in the text and are re peated here for em pha sis. CAU TION Do not drop the Thruline Wattmeter equip ment or sub mit it to hard blows. The volt me ter cir cuitry or microammeter, even though it is shock mounted, may be dam aged by se vere im pact. -
Page 7: About This Man Ual
About This Man ual About This Man ual This in struc tion book cov ers the model 4450 Thruline Wattmeter This in struc tion book is ar ranged so that es sen tial in for ma tion on safety is con tained in the front of the book. Read ing the Safety Pre cau tions Sec tion be fore op er at ing the equip ment is strongly ad vised. -
Page 9: Table Of Contents
Ta ble of Con tents Safety Pre cau tions ......i Model 4450 Thruline Wattmeter Warn ing State ments ... . . i Model 4450 Thruline Wattmeter Cau tion State ments . - Page 10 List of Fig ures Out line Draw ing ......1-2 Schematic Di a gram ......1-3 Zero Ad just ment Screw .
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Page 11: In Tro Duc Tion
Chap ter 1 In tro duc tion Purpose and function The Model 4450 Thruline Wattmeter is an in ser tion-type RF wattmeter de signed to mea sure RF power flow and load match in 50 ohm RF co ax ial trans mis sion lines. Its pri mary in tended use is for the test and eval u a tion of power line car rier equip ment, al though it is well suited low fre - quency low power RF ap pli ca tion. -
Page 12: Spec I Fi Ca Tions
Power range 5/25/100 Watts In ser tion VSWR 1.10 max i mum Con nec tors Bird QC type, Fe male N nor mally Sup - plied Tem per a ture Range Op er ating +5°C to +45°C (41°F to 113°F) Stor age -10°C to +45°C (14°F to 113°F) -
Page 13: Sche Matic Di A Gram
Sche matic Di a gram... - Page 14 Bird Model 4450 Thruline Wattmeter...
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Page 15: The Ory Of Op Er A Tion
Chap ter 2 The ory Of Op er a tion Traveling Wave The op er a tion of the Model 4450 Wattmeter is based on the trav el ing wave con cept of RF trans - Concept mis sion. As RF power is ap plied to a trans mis sion line, there is a for ward wave trav el ing from the trans mit ter to the load, and a re flected wave trav el ing from the load to the trans mit ter. - Page 16 Bird Model 4450 Thruline Wattmeter will be in di cated on the microammeter as the power op po site to the for ward power, or re flected power.
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Page 17: In Stal La Tion
Quick-Change de sign. These con nec tors may be readily and eas ily changed to other “QC” type con nec tors listed in the Re place ment Parts List. These con nec tors are avail able from Bird Elec - tronic Cor po ra tion and may be re quested at time of or der to fa cil i tate con nec tion to the user’s sys -... - Page 18 Bird Model 4450 Thruline Wattmeter...
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Page 19: Op Er Ating In Struc Tions
This cor rec tion is neg li gi ble (less than 1 per cent) if the load is such as to have a VSWR of 1.2 to 1.0 or less. Good load re sis tors such as Bird TERMALINE Loads will give this neg li gi ble or un -... -
Page 20: Vswr Calculations
Bird Model 4450 Thruline Wattmeter VSWR Calculations Af ter ob tain ing the for ward and re flected power read ings de scribed above, the VSWR may be found by cal cu la tion as de scribed on page 2-1 Traveling wave vs. Stand ing wave. Con ver sion nomographs to sim plify de ter min ing VSWR are pro vided be low. -
Page 21: Main Te Nance
Sales / Repair U.S.A. Sales and Man u fac turing Facilities Ser vice Group Bird Elec tronic Cor po ra tion 30303 Au rora Road Cleve land (Solon), Ohio 44139-2794 Phone: (440) 248-1200 Ca ble: BIRDELEC... -
Page 22: Pre Ven Tive Main Te Nance
Bird Model 4450 Thruline Wattmeter Pre ven tive Main te nance W A R N I N G Provide adequate ventilation and observe normal precautions when using dry cleaning solvents. Many dry cleaning agents emit toxic fumes that may be harmful to your health if inhaled. -
Page 23: Re Pair
Re pair Al though the Model 4450 is de signed to be rug ged and pro vide years of trou ble-free ser vice, oc ca - sional re pair or re place ment may be come nec es sary. This sec tion con tains re pair and re place ment pro ce dures. -
Page 24: Range And Mode Switch Re Place Ment
Bird Model 4450 Thruline Wattmeter 5. Re in stall the me ter and cal i bra tion board by re vers ing the dis as sem - bly pro ce dure. Do not tighten the me ter mount ing screws ex ces - sively. -
Page 25: Re Place Ment Parts List
Re place ment Parts List Q T Y Line sec tion as sem bly 4450-003 Mount ing bracket 450-020 PC board mount ing brack ets 4450-019 30 uA me ter 2080-063 Switch knobs 4110-016 Me ter hous ing 4450-009 Carrying strap 8580-003 Bumper feet 5-875... - Page 27 QUAL ITY IN STRU MENTS FOR RF POWER MEASUEMENT From 2 to 2300 MHz and from 25 milliwatts to 250 ki lo watts in 50 ohm co ax ial line sys tems TERMALINE ® AB SORP TION WATT ME TERS LOAD RE SIS TORS CAL O RIM E TERS THRULINE...
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