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濡備綍浣跨敤椐愭尝姣旇〃
 
 BV3FG銆€鑻ヤ互鍔熺巼鐨勮榛炰締鐪嬨€€椐愭尝姣斿彲浠ヨ〃绀虹偤锛�
 
 SWR = (鈭歅o + 鈭歅r)锛�(鈭歅o - 鈭歅r)
 
 Po锛氶€插叆澶╃窔绯荤当(t菕ng)鐨勫姛鐜囥€€ Pr:寰炲ぉ绶氱郴绲�(t菕ng)鍙嶅皠鍥炰締鐨勫姛鐜�
 
 缍�(j墨ng)閬庨亱绠椼€€SWR 鑸� Pr/Po (鍙嶅皠鍔熺巼鐧惧垎姣�)鐨勯棞(gu膩n)绯诲涓嬶細
 
 Pr/Po = [(SWR-1)/(SWR+1)]^2
 
 椐愭尝姣旇〃鍩烘湰涓婂氨鏄姛鐜囪〃銆傚畠鍙互閲忔脯杓稿叆鍔熺巼鍙婂弽灏勫姛鐜�銆備絾鏍规摎(j霉)涓婂紡锛屼笉绠¤几鍏ュ姛鐜囩偤浣�锛屽弽灏勫姛鐜囦竴瀹氬拰杓稿叆鍔熺巼鎴愪竴瀹氱殑姣斾緥銆備篃灏辨槸瑾�锛屽皪鍚屼竴椐愭尝姣�锛屼笉绠¤几鍏ュ姛鐜囩偤浣�锛屽彧瑕佹槸鍦ㄩ噺杓稿叆鍔熺巼鏅傚埄鐢ㄥ彲璁婇浕闃昏(di脿o)鏁撮﹨(q奴)鍕曡〃闋殑闆绘祦浣挎寚閲濋仈鍒版豢鍒诲害銆傞偅楹间綘閲忔脯鍙嶅皠鍔熺巼鏅�锛屾寚閲濅竴瀹氭槸鎸囧湪鍚屼竴鍊嬩綅缃�銆傛妸閫欎簺鐩搁棞(gu膩n)浣嶇疆妯欏嚭渚嗭紝鎴戝€戠殑鍔熺巼琛ㄤ笂灏卞浜嗕竴鎺掑埢搴�锛屽彨鍋�"椐愭尝姣�"锛岃€屾偍鐨勫姛鐜囪〃棣笂鎼栬韩涓€璁婃垚鐐�"椐愭尝姣旇〃"浜�銆�
 
 瑾┛浜�锛岄娉㈡瘮琛ㄥ氨鏄姛鐜囪〃銆傚湪閲忔脯鍔熺巼鏅傚畠闋�(y霉)瑷�(sh猫)浜嗗咕绲勫姛鐜�(濡�5W,20W,200W)浣胯几鍏ュ姛鐜囨伆濂芥槸閫欏€嬩綅婧栨檪(5W, 20W, 200W)锛屾寚閲濇渻閬斿埌婊垮埢搴�銆傜暥浣犳挜鍦–AL浣嶇疆鏅傚氨鏄噺杓稿叆鍔熺巼锛屽彧涓嶉亷浣犲彲浠ヨ(di脿o)鏁存寚閲濅綅缃�銆傜暥浣犳挜鍦⊿WR浣嶇疆鏅傚氨鏄噺鍙嶅皠鍔熺巼锛屽彧涓嶉亷鎮ㄩ€欐檪鍊欑湅鐨勬槸SWR鐨勫埢搴︺€�
 
 浠IAMOND绯诲垪鐨勯娉㈡瘮琛ㄨ€岃█锛屽畠鏈変竴鍊� Calibration 鏃嬮垥鍙婁笁鍊嬮伕鎿囬枊闂�(gu膩n)锛歅ower Range锛孎(xi脿n)unc锛孎(xi脿n)WD/REF SWITCH銆傜敤娉曞涓�銆�
 
 閲忚几鍏ュ姛鐜囷細
 
 1.灏� POWER RANGE 鎾ュ埌200W锛孎(xi脿n)UNC 鎾ュ埌PWR锛孎(xi脿n)WD/REF 鎾ュ埌FWD锛�
 
 2.鎸変笅鐒＄窔闆绘鐨勭櫦(f膩)灏勯嵉锛�
 
 3.閬╁害閬告搰 POWER RANGE 浠ョ簿纰鸿畝鍑哄姛鐜�銆�
 
 閲忓弽灏勫姛鐜囷細
 
 1.灏� POWER RANGE 鎾ュ埌200W锛屻€€FUNC 鎾ュ埌PWR锛屻€€FWD/REF 鎾ュ埌REF锛�
 
 2.鎸変笅鐒＄窔闆绘鐨勭櫦(f膩)灏勯嵉锛�
 
 3.閬╁害閬告搰 POWER RANGE 浠ョ簿纰鸿畝鍑哄姛鐜囥€�
 
 閲忛娉㈡瘮锛�
 
 1.灏� FUNC 鎾ュ埌CAL 浣嶇疆锛孋ALIBRATION 鏃嬮垥鍙嶆檪閲濇柟鍚戞棆杞�(zhu菐n)鍒板簳锛�
 
 2.鎸変笅鐒＄窔闆绘鐨勭櫦(f膩)灏勯嵉锛岃(di脿o)鏁� CALIBRATION鏃嬮垥浣挎寚閲濋仈鍒版豢鍒诲害锛�
 
 3.灏� FUNC 鎾ュ埌 SWR 浣嶇疆锛岀敱琛ㄩ牠鐨� SWR 鍒诲害璁€鍑洪娉㈡瘮鐨勮畝鍊�銆�
 
 浣跨敤椐愭尝姣旇〃閲忔脯澶╃窔鐨勯娉㈡瘮鏅傝鐩￠噺灏囬娉㈡瘮琛ㄩ潬杩戝ぉ绶氱锛屽洜鐐哄偝杓哥窔鐨勫偝杓告悕鑰楁渻浣垮緱鎵€閲忓嚭渚嗙殑椐愭尝姣旀暩(sh霉)鍊艰純灏忥紝璁婃垚 "蹇▊椐愭尝姣�"銆備緥濡傦紝鍘熸湰澶╃窔鐨勯娉㈡瘮鐐� 1.92 (鍙嶅皠鍔熺巼鐧惧垎姣旂偤10%)锛岀従(xi脿n)鍦ㄥ姞涓婁竴娈� cable 琛版笡閲忕偤 3dB锛屽亣瑷�(sh猫)鐒＄窔闆绘鐨勭櫦(f膩)灏勫姛鐜囩偤10W锛屽墖缍�(j墨ng)鐢� CABLE 鍌冲埌澶╃窔鐨勮几鍏ョ鏅傚彧鍓╀笅5W锛岀劧寰屽弽灏�10% 鍗� 0.5W锛�0.5W 缍�(j墨ng)鐢卞偝杓哥窔閫佸洖渚嗗彧鍓╀笅0.25W锛屾墍浠ラ娉㈡瘮閲忓埌鐨勬槸杓稿叆 10W锛屽弽灏� 0.25W锛屽弽灏勫姛鐜囩櫨鍒嗘瘮鐐� 2.5%锛屽嵆 SWR=1.03 閲忚捣渚嗙湡鏄揩妯傜殑涓嶅緱浜嗐€�
 
 姝ゅ锛岀洰鍓嶅ぇ閮ㄤ唤鐨勯娉㈡瘮琛ㄩ兘鏄埄鐢ㄦ劅鎳�(y墨ng)鐨勬柟寮忓皣淇¤櫉鎰熸噳(y墨ng)鍒伴娉㈡瘮琛ㄥ収(n猫i)鐨勯噺娓浕璺�锛屾墍浠ュ湪閲忔脯鏅傚彲浠ヤ竴閭婄櫦(f膩)灏勪竴閭婂垏鎻涢娉㈡瘮琛ㄤ笂鐨勯枊闂�(gu膩n)锛岄€欏苟涓嶆渻鎼嶅鐒＄窔闆绘銆傚鏋滃皬蹇冧竴榛�锛屼笉瑕佽畵鎸囬嚌鐬枔鎵撳埌搴曘€傞娉㈡瘮琛ㄨ澹炴帀涔熻牷闆ｇ殑銆�
 
 
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4304A
	Fixed 25-1000 MHz, 5-500W, Portable Wattmeter
	General purpose field power measurement from 25 MHz to 1 GHz and up to 500 watts. Uses a single broadband element with a 5-b range switch. Same rugged bl housing as the Model 43. Quick Change (QC) connectors to minimize the need for adaptors when making critical measurements.
	The Model 4304A uses the basic construction of the Model 43 and modifies it with a special broadband element and range switch for general purpose RF power measurement without the hassle of carrying a set of individual elements.
	Element Tables / Product Support and Service
	Accessories: Quick Change Solderless Connectors - QC-Type "Quick Change Solderless" RF Connectors
	Support Tools: Operation Manual
	Product Specifications:
	Accuracy: 25鈥�100 MHz, 卤7% of full scale, using correction charts, 100鈥�512 MHz, 卤6 of full scale, no correction needed, 512鈥�1000 MHz, 卤7% of full scale, no correction needed. Connector: QC Type (Female N normally supplied) Finish: Light Gray powder coat Frequency Range: 25 MHz to 1.0 GHz Insertion Loss: 25鈥�512 MHz, 0.10 dB max with UHF female conn., 512鈥�1000 MHz range, 0.13 dB max Insertion VSWR: 25鈥�521 MHz, 1.05 max. (with UHF female conn.), 512鈥�1000 MHz, 1.07 max. Nominal Size: 6 7/8" H x 5 1/8" W x 3 5/8" D, (175 mm x 130 mm x 92 mm) Power Range: 5, 15, 50, 150, 500 W, with no scale limitations except power limited to 150 W from 800鈥�1000 MHz Weight: 3 lbs. (1.36 kg)