1760

Frequency Response、Loudness Rating、Harmonic Distortion of the Receiving , Sending

Type 1760 include a Test Box ( Model-176 )，Can isolate effectively the interference of the ambient noise.

(Please referto Type 1700 )，user can test the receiving and sending characteristics of the Handset

Auto testing, auto judging the Pass or Fail, can print out the testing report, suitable in

*The fundamental combination of Type* 1760
Item	Model No.	Description	Usage
1.	170 A	Telephone Analyzer	Mainframe. To control and process the input、output signal.
2.	Monitor & Keyboard	High Resolution Color Display Monitor & Keyboard	Display the tested results & data and key in data. User may buy these two items at his local market, since price is cheaper and can save freight charge and import tax.
3.	176	Test Box	Pleas refer to the "Attention 2 & 3" as below
4.	140M	Artificial Mouth	Generates a flat and stable、precise sound field, for testing the “Transmitter".
5.	8120H	Measuring Microphone	Its frequency response curve is very flat、precise and stable, can test the freq. response curve and sensitivity of the loudspeaker, or can be used as a feedback microphone.
6.	X-Y Mouse	Mouse	Replace the upward, downward, leftward, rightward and enter keys on the keyboard.
7.	173 IP ( Option )	I-Phone with Handset Test Adopter Pleas refer to the "Attention 2 & 3" as below	Adopter for testing the electroacoustic characteristics of the Handset portion of the I-Phone.
8.	147B ( Option )	Test Head Pleas refer to the "Attention 2 & 3" as below	Sets the test angle and position of the artificial ear and mouth, to test the acoustic characteristics of the handset.
9.	140M ( Option )	Artificial Mouth Pleas refer to the "Attention 2 & 3" as below	Generates a flat and stable、precise sound field, for testing the “Transmitter".
10.	142EA-S ( Option )	Artificial Ear ( 142EA = IEC - 318 ) Pleas refer to the "Attention 2 & 3" as below	Receives the sound generated from the receive.
11.	HP Printer ( Option )	Printer (All the HP DeskJet or HP Laser Printers that are supported by DOS can all be used.)	Print out the tested results & data.
Attention please : 1. Type 1760 is a kind of test system derives from Sunlight’s Type 1700 , its main purpose is used to test the electroacoustic characteristic of the I-phone ( or speakerphone ), Type 1760 when combined with the artificial ear (Model-142EA-S) , artificial mouth ( Model-140M ), test head ( Model-147B ) and 173IP (no need to combine with the Model-176 Test Box ) is used to test the I-phone, Video Phone or an ordinary phone with handset, which means to test the electroacoustic characteristic for both the sending and receiving of the handset of the I-phone ( or speakerphone ), video phone or ordinary phone , on the other hand, Type 1760 when combined with the artificial ear, artificial mouth , test box Model-176 ( no need to combine with 173IP) is used to perform speedy test of the electroacoustic characteristic of the speaker phone like the I-Phone, Video phone or an ordinary phone in the production line. User must assembly the test system in accordance to the items of combination he purchased , and please use the correct operating software ( either for testing the speaker phone or handset) for performing the testing. 2. When used for testing the SpeakerPhone ： The inner layers of Model-176 Test Box were spread with sound absorption material, it can isolate most of the ambient noise when the test box’s cover is being closed, besides, since the volume of Model-176 is not big, so it does not need abig space, thus, it is very suitable for testing the electro acoustic characteristics of the Speakerphone in the production line. 　 As Model-176 Test Box is not a standard testing box, besides, the Measuring Microphone and the Artificial Mouth are not placed at the standard position (The position varies from the size of the telephone), thus, the tested frequency response curve and the loudness rating of both the receiving and sending are treated as a reference value only, and can’t be treated as the standard value, thus, in actual using, firstly, user must use a Golden Sample as a reference standard, and compare it with the same Type (same Model ) of telephone. This comparative method is very suitable for the 100% Q.C. inspection in the production line. 　 To test the standard value of the Speakerphone, additional purchase of the items 4, 5 on the above table is needed, then, Speakerphone, 8120H and 140M must be placed inside the anechoic chamber to undergo testing in accordance to either ITU or EIA standard, user can therefore obtained the standard testing value. (Model- 8120H and 140M inside Model-176 can’t be taken off, thus, user are required to purchase the two items). 　　 3. When used for testing the handset of the I-Phone ( or Speakerphone ) ： To test the electroacoustic characteristics of the Handset portion of the I-Phone ( or speakerphone ) , additional purchase of items 7, 8, 9 and 10 on the above table (Which are Model-173IP, 147B, 140M and Model-142EA-S) is needed. The tested values are the standard values and not the reference values.