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对任何传呼机进行维修测试、改频调校,首先要使传呼机关闭省电电路,处于测试状态,否则会因传呼机电压不断跳动而无法对其进行有效测量与调校。用传呼机专用拍码器进行拍码调校固然方便,但传呼机专用拍码器十分昂贵,其价位一般在1万元左右,使许多维修人员不敢问津。本文介绍的NF5121200传呼机维修专用模块与C150、C112等频率合成手持对讲机配合,可构成一台可任意预置频率的传呼机维修专用信号发生器,它的总价位只有拍码器的1/5。虽然拍码器能拍发出多位数码来,但实际调校传呼机时却往往只需拍发出前置码,调校完成后,才用拍发数码来检验,而此时只要给传呼台打一传呼电话,就能使调校得到更好的检验。
For any pager maintenance test, frequency adjustment, the first pager to turn off the power-saving circuit, in the test state, otherwise it will be pager voltage is constantly beating and can not be effectively measured and adjusted. It is convenient to use the special pager for the beat code adjustment, but the pager-specific coder is very expensive, the price is generally about 1 million, so that many maintenance personnel are not interested. This article describes the NF5121200 pager repair modules and C150, C112 and other frequency synthesizer handheld interphone can be configured with a preset frequency pager repair dedicated signal generator, and its total price only the encoder 1/5 . Although the coder can make multiple digits, it is often only necessary to issue a preamble when actually adjusting the pager. Once the adjustment is completed, the digital test is used to test the pager. In this case, A paging call, you can make calibration to get a better test.