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2014-07-08 12:01
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r3131aƶ��ձ�advantest��˾�ĳ�ʒ��ڲ��ƶ�ź��ɲ��ƶ�ʷ�χϊ9k—3ghz��gsm�ֻ��ά�ޣ�ͨ��ƶ��ǿɲ��ƶ��·�е��µ�·�ź�, ��ά��ա��ͨ��źŵķ��ȡ�ƶ��ƫ�ơ��ų̶ȵȳ��ķ��жϳ��ϵ㣬��п��ч��ά�ޣ��

1. �ֻ��ο��׼ʱ�ӣ�13m,26m�ȣ��

2. ��ƶ��rfvco��ƶ��ź�(��ֻ��ͺŷ��)��

3. ��䱾��txvco��ƶ��źţ�gsm:890m—915m;dcs:1710—1785m��

4. ��ƶоƭ��պͷ��ͨ·�ĸ�ƶ�źţ�

5. ��ƶ�ͷ��ƶ�ź�(��ֻ��ͺŷ��)�� ϸ��ͼ-1��ʾ��ĺ��£�

a��ܰ��ӧ��ϸ��ѡ�񰴼��簴��b��freq��󣬻��ļ��ұߵ��һ�й��ܲ˵��ҫѡ��е�“start”��ܾͿ�ͨ��ӧλ�õļ��ʵ�֡�

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b��ҫ��ò��ĺ��ܰ��freq—��ƶ�ʣ� span—ɨ��ƶ�ʿ��ȣ�level—�ο��ƽ��а��ֻ��ֱ�ӱ��¶�ӧ��ֵ��λ��ɡ�

c��ֵ��ѡ��“1”��һ��“cal(у׼)”��˹��ҫ�ȱ��“shift(��ɫ��)”��ٰ��“1”��ӧѡ��ã� “-”��˸�ɾ��ɾ��롣

d��λѡ��ȡ��ƽ��ƶ�ʡ�ʱ��ĵ�λ��“hz”��“enter(ȷ��)”��á�

e��ϵͳ��ܰ��ϳ�ʹ�õ��“shift”�ڶ��ѡ��“shift config(preset)”ѡ��ϵͳ��λ��ܣ�“recall”��ô洢��ϣ��“shift recall(save)”ѡ��ϣ��湦�ܡ�

f��źų��η�ֵ��⹦��ѡ��

g��ѡ��õ��“bw”�źŵ��ѡ��“sweep”ɨ��ʱ��ѡ��,“sweep”��ָ��ʾ��ļ��ߵ��ұ�ɨ��һ�ε�ʱ�䡣

��ʾ��ļ�ϵ��ϣ(��ͼ-2��ʾ)��

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1�� power on ��

2�� ÿ�ο�ʼʹ��ʱ��30��ӻ��զ�у׼��ȱ� shift 7��cal�� ѡ�� cal all ��у׼��г��“calibrating”��у׼��ͨ��ظ�у׼ǰ״̬��у׼��լ��3��ӡ�

3�� у׼��ɺ��ȱ� freq ��ƶ��ֵ��ƶ��ϊ902.4m��źţ��¸ü��“data”��ӧ��ֵ��ֵ�ĵ�λ��ɡ�

4�� span ��ɨ��ƶ�ʿ��ȣ��թ��ƣ��ֵ��ȼ��뵥λ��mhz,khz�ȣ��

5�� level ��빦�ʲο��ƽ ref ��ο��ߣ��ֵ��ȼ��뵥λ�� dbm��-dbm��

6�� level ��£��ref offset on ��ͷ��ģ��ģ��֮��ֵ��(��λϊdb)�� 磺3db��ʱ��ֱ��3db��

7�� bw ��ֱ�� rbw�� vbw ��rbwϊ�ֱ��ָ��źų��η�ֵ�½�3db��źų��ε�ƶ�ʿ��ȣ�vbwϊ��ƶ��ȣ��ҫ��źŵĸ��ų��ρ��ƶ�ʡ�ɨ��ƶ��ο��ƽ��źų��κ��ٽ��е��,��λϊghz,mhz��khz��

8�� sweep ��ٰ� swp time auto/mnl ��ɨ��ʱ��ڣ��뵥λ��s��ms��

9�� shift recall �� save item ѡ�� setup on/off ״̬�½��úõ��ϣ��б��棬��ѡ�񱣴�λ�ã��ѡ1—10�� enter ��ͬʱ��ѡ�񱣴��ڱ��̣�ram/fd��ϣ��´�ʹ��ʱֱ�ӵ��ã��á�

10�� recall �� ѡ��ϣ��λ�ð� enter ��ҫ��ϣ��ɴ��̻򱾻��

11�� pk srch ��ͨ�� mark ��ɶ��ֵ��ֵ��жϸ�ֵ�ƿ�ϸ�

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��թ��62�ŵ��ƶ�ʣ�902.4m��

a. ��ƶ��freqϊ902.4m��

b. ȼ��ɨ��ƶ�ʿ��span��gsmϵͳ��ŵ��200khz,ѡ��spanӧ�ǵ˼��ƶ�ʵ�10��ϣ�һ��ѡ��ϊ10mhz,��ѡ��ϊ4mhz��

c. ��òο��ƽֵlevel��gsmϵͳ�з��书��һ�㲻�ᳬ��30dbm,�ʴ��һ�㽫�˲��ϊ30dbm��

d. ��󣬼��ɲ��902.4mhzƶ�ʲ��σ��ʱ��źų��ο��δ��ֱ��ե�ҫ�󣬻�ӧ�դ��bw(��rbw��vbw)��ɨ��ʱ��sweep��е��ڣ�һ��rbwϊ300khz��vbwϊ10khz��swp timeϊ1s��щ��ϊrbw=100khz,vbw=10khz,swp time=2s��ϲ��ĳ��ͼ-3��ʾ��

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