|
FC-2700 桌上型計頻器
特色
-
8位數液晶顯示器
-
時基震盪採用高品質TCXO O.S.C.
-
測量範圍(頻率)：10 ~ 2700MHz
-
測量範圍(週期)：10 ~ 10MHz
-
精確度：±2ppm
-
可記錄最大值’最小值及平均值
-
讀值鎖定功能
-
具有比較值(相對值)功能
-
Size：280 X 210 X 90mm
FEATURES
TCXO (temperature compensated crystal oscillator) time base, high stability & accuracy.
High sensitivity for the VHF & UHF frequency measurement, useful for the CB amateur.
Wide measuring range up to 2.7 GHz.
Used the exclusive Microprocessor IC offered the intelligent function: Frequency, Period, Multi resolution, Data hold, Relative measurement, Data record ( Max., Min., Average reading ).
8 digits, 18.3 mm large LCD .
0.1 Hz resolution for 10 MHz.
LCD display for low power consumption & clear read-out even in bright ambient light condition.
Power supply from battery or AC to DC 9V adapter.
RS 232 PC serial interface.
一般規格
顯示 (Display)
- 18.3 mm ( 0.72" ) LCD (Liquid Crystal Display), 8 digits.
測量 (Measurement)
-
Frequency, Data hold, Relative, Memory(max., min., average), Period.
範圍 (Range)
- 2.7 GHz : 100 MHz to 2700 MHz
100 MHz : 10 MHz to 100 MHz.
10 MHz : 10 Hz to 10 MHz
Period : 10 Hz to 10 MHz
解析度及取樣時間
| Range |
Gate Time Select |
Resolution |
Sampling Time |
| 2700 MHz |
FAST |
1000 Hz |
0.5 SEC |
| SLOW |
100 Hz |
2.75 SEC |
| SLOW(select 1) |
200 Hz |
1.5 SEC |
| SLOW(select 2) |
500 Hz |
0.75 SEC |
| 100 MHz |
FAST |
100 Hz |
0.75 SEC |
| SLOW |
10 Hz |
6 SEC |
| SLOW(select 1) |
20 Hz |
5 SEC |
| SLOW(select 2) |
50 Hz |
1.5 SEC |
| 10 MHz |
FAST |
10 H |
0.5 SEC |
| SLOW |
1 Hz |
1.25 SEC |
| SLOW(select 1) |
0.2 Hz |
6 SEC |
| SLOW(select 2) |
0.1 Hz |
11 SEC |
靈敏度 (Sensitivity) (Sensitivity Sw. set to high position)
- 2700 MHz range : 50 mV rms. ( 100 MHz to 2.5 GHz ) ; Typical : 35 mV rms. ( 300 MHz to 2.4 GHz )
- 100 MHz range : 50 mV rms. ( 10 MHz to 100 MHz ) ; Typical : 25 mV rms. ( 30 MHz to 100 MHz )
- 10 MHz & Period : 30 mV rms. ( 10 Hz to 10 MHz ) ; Typical : 15 mV rms. ( 10 Hz to 9 MHz )
信號最大輸入 (Max. functional signal input) (Sensitivity Sw. set to normal position)
- 2700 MHz range : 4 V rms. 400 MHz to 2.7 GHz )
- 100 MHz range : 4 V rms.
- 10 MHz & Period : 15 V rms.
過載輸入 (Over-input) ( Max. signal will not hurt the circuit )
- 2700 MHz & 100 MHz range : Max. 4 V rms.
10 MHz & Period range : Max. 15 V rms.
時基穩定度對應溫度 (Time Base Stability vs. Temp.)
- 1.5 PPM ( 10 to 30 ℃ ).
頻率精確度 (Frequency Accuracy)
- ± ( 2 PPM + 1 d ) - 23± 5℃ , after calibration.
時基電路 (Time Base circuit)
- 16.777216 MHz, TCXO (temperature compensated crystal oscillator).
輸入連接器 (Input Connector)
- 2700 MHz : N coaxial connector.
- 100 MHz range : N coaxial connector.
- 10 MHz & Period range : BNC connector.
箱體 (Case)
- Durable & strong ABS-plastic housing with handle.
操作溫度 (Operating Temp.)
- 0 to 50 ℃ ( 32 to 122 ℉ ).
操作溼度 (Operating Humidity)
- Less than 80 % R.H.
電源供應 (Power Supply)
- 6 x 1.5 V AA ( UM-3 ) battery or AC to DC 9V adapter.
電源損耗 (Power Consumption)
- 2700 MHz & 100 MHz range Approx. DC 105 mA.
10 MHz & Period range Approx. DC 45 mA.
交流變壓器電源輸入 (AC Adapter Power Input)
- Optional, 9V DC , 300 to 500 mA rating, central positive for socket.
體積 (Dimension)
- 280 x 210 x 90 mm ( 11.0 x 8.3 x 3.5 inch ).
重量 (Weight)
- 1200 g/0.27 LB (including battery).
附件 (Standard Accessories)
- Instruction Manual .............. 1 PC.
選購附件 (Optional Accessories)
- PB-21 : Direct probe with BNC connector & alligator clip pairs, available for 10 MHz range
- BB-22 : Direct probe with double BNC connector, available for 100 MHz & 10 MHz range.
NN-23 : Direct probe with double N coaxial connector, available for 100, 2700 MHz range.
NB-24 : N coaxial connector to BNC connector adapter. - UPCB-02 : Isolated RS232 cable.
|
