|
Telephone Acoustic Analyzer, Type 1700은 전화기 개발, 생산, 품질관리 등에서 주로 사용하며, 송수화 및 측음당량/ Return Loss/ Distortion/ Impedance/ H.A.C. 등을 측정합니다. Option의 추가로 EIA, CCITT, OREMA/B등 약 30여 국가의 규격을 만족합니다.
Specifications
□ Feeding Bridge Voltage：
Symmetric Balanced Type. Voltage can be set from 5～73V ±( 0.4﹪rdg ＋ 0.15﹪FS )
resolution: 0.1V, program-mable Software Setting.
Current : 0～120 ma. Accuracy：
0～2 ma±(2.5﹪＋ 2ua)；Resolution 1ua; 2～120 ma ± ( 1.5﹪＋0.1 ma ).
Resistance：Rtot＝RL1＋RL2＋Rv ;
RL1＝RL2＝150Ω＝Resistance of the Inductor; Rv＝ Resistance of the programmable Ser-ial Resistor ; Rv = 0～2550Ω (overall from 300Ω～ 2850Ω, 10Ω / Step).
Coupling capacitor：2u×2, 4u×2, 37u×2, programmable and set automatically according to specific standard. (see Note 3).
□ Sweep frequency range：
In the range between 100 Hz～10 KHz. The working range is determined according to specific standard automatically, e.g.:180Hz~5KHz according to Taiwan, EIA or China Std., or 160 Hz～8 KHz according to BS6317 .
□ Resolution or interval of sweep frequencies：( user selectable )
Fast : 1/12 oct.
Slow：1/48 oct. ( ≒ continuous ) .
□ Test standard：ITU-T (CCITT)、EIA (IEEE)、OREM A、OREM B
□ Frequency response judgement : Mask ( Best Fit ) or 1KHz Normalization method. Automatically set According to specific standard.
□ Dynamic range of freq. response meas. : 70 dB.
□ Sending test range：＋10 ～ －60 dBV
□ Receiving test range：50 ～ 120 dB SPL
□ Sidetone test range：50 ～ 120 dB SPL
□ Sound level from Artificial Mouth : 75～107dBSPL@MRP. Set by the software in step 0.1dB.
□ Artificial Line : 0～ 7.5 Km, 0.5 Km / Step ; or 0～ 15 Kft , 1 Kft / Step ( EIA ).
□ Electrical signal for receiving test：
EMF =0.07V ～3V, set by the software in step 0.1dB, accuracy ＜± (0.1 dB＋1mv).
□ Test range of RE or LR：
| EIA |
CCITT |
OREM A / B |
| TOLR： －20 ～ － 65 dB |
SLR： －15～＋ 30 dB |
TRE：－20 ～＋ 25 dB |
| ROLR： ＋30～＋75 dB |
RLR： －20～＋ 25 dB |
RRE：－15 ～＋ 30 dB |
| SOLR： －20 ～＋25 dB |
STMR：－10～＋ 35 dB |
SRE：－25 ～＋ 20 dB |
□ Tighten or Loosen of Upper / Lower limits range：－9.9～＋ 9.9 dB, 0.1dB/step.
□ Return Loss Measurement：
Terminal Impedance：Internal : 600Ω, 900Ω and 3 different complex impedance according to UK, China and Germany standards.
External : Three additional Zext terminals are provided.Test range: 0～40 dB ( Note：＞ 40 dB is meaningless ),
Accuracy :
300Hz～4KHz ± 0.3dB @ 0～ 30 dB
± 0.6dB @ 30～ 35 dB
± 1dB @ 35～ 40 dB
Frequency range：Determined by specific std. ranging from 100 Hz～ 10 KHz .
□ Printer interface : HP or compatible.
□ Power：90V～240V, 47～63Hz, 150VA max..
□ Weight & dimension： N.W.：( H )×( W )×( D )
MODEL－170 : 9.5 Kgs. 17 × 36 × 39 CM
14" MONITOR : 11.5 Kgs. 37 × 35 × 39 CM
MODEL－147 : 6.5 Kgs. 49 × 21 × 30 CM ( Test Head )
|
