Banggood FA-2 Frequency Counter Kit Meter User Manual

Banggood FA-2 Frequency Counter Kit Meter

This manual describes how to install and used FA-2 frequency counter.
For assistance ,contact:
WUTONG electronic
http://bg7tbl.taobao.com

Key Feature

1. High speed,high precision,up to 11 avalid digit/second@10MHz
2. CH2 input up to 6GHz
3. High precison OCXO inside,can connect extern 10M frequency
4. With data statis ,display average,max,min,p-p frequency.
5. With USB port,connect to PC,data compact HP53131 mode
6. CH1 with power ,dymnic up to 60dB,

overview

FA-2 frequency counter is high precision, high speed, with status function, auto status input frequency, It is convenient for long-term monitoring of external frequency changes. Channel 2 can measure frequencies up to 6 GHz. Built-in OCXO, or external 10M standard.

specification

• CH1 frequency range：1Hz-200MHz

• CH1 input impedance:50 OHM/1M OHM

• CH1 input sensitive:
  50 OHM:25mVrms-2Vrms
  1MR:25mVrms-2Vrms

• CH1:
  0.1: 0.001Hz@10M
  1:0. 0001Hz@10M
  10: 0.00001Hz@10M

• CH1 frequency accuary
  0.1s：0.001Hz@10M
  1s:0.0001Hz@10M
  10s:0.00001Hz@10M

• CH1 test speed:12digits/second@100M-200M
  11digits/second@10M-99.999999M,
  10digits/second@1M-9.999999M
  9digits/second@0.1M-0.999999M
  8digits/second@90K-99K
  8digits/second@1Hz-89.999K

• CH1 power test range: 50dBm-+20dBm，1M-550M@50 OHM

• CH1 power accuary:0.5dB@10MHz

• CH1 plug type:BNC

• CH2 frequency range:30MHz-6GHz

• CH2 input impedance:50 OHM

• CH2
  0.1: 1Hz@1GHz
  1: 0.01Hz@1GHz
  10: 0.001Hz@1GHz

• CH2 frequency accuary:
  0.1s：1Hz@1GHz
  1s:0.01Hz@1GHz
  10s:0.001Hz@1GHz

• CH2 input power range:-20dBm- +13dBm@0.5-5G,

• CH1 plug type:SMA

• gate time：0.1S/1S/10S

• inside frequency stadnard:10MHz

• inside frequency stadnard type:OCXO

• inside frequency stadnard ageing:0.5Hz/year

• 10M frequency output power:4dBm

• extern frequency input range:0dBm to +20dBm

• run mode:
  CH1 frequency
  CH1 statUs
  CH2 frequency
  CH2 statis

• front panel:
  MODE, change mode
  GATE: change gate time.
  RST: restart test
  CH1: channel 1 input
  CH2: channel 2 input

• rear panel
  10M REF INPUT: extern 10M input
  10M REF OUTPU: 10M output
  USB: USB port
  STD ADJ:inside OCXO frequency adjust
  power switch
  dc plug

• status mode data type: average, max, min, p-p

• power : DC11.7-12.5V, star: less than 0.4A, stabilize: less than 0.2A

• size:LHD=10655105mm

• weight:350g

• accessory: DC12V adapter 1pcs

install used

rear panel

1. 10MHz frequency standard input and output
2. USB port, inside is ft232rl chip, usb driver can download from ftdi website
3. Inside OCXO frequency adjust
4. Power on/off
5. DC12V input

Front panel

1. 12864 LCD
2. MODE key, turn run mode
3. GATE key, change gate time
4. RST key, restart test, RST+GATE, open/closed ch1 lpf, RST+MODE, CH1 select 50R/1MR
5. Channel 2 input
6. Channel 1 input

LCD display data

1. CH1 input power
2. Frequency display area
3. Units
4. Gate time，0.1S,1S,10S
5. Inside/outside frequency standard
6. CH1 input impedance,1MR/50R
7. Gate state,display * means gate is open,else gate closed
8. Display P means high precison mode
9. 150KHz LPF

channel status mode

1. 1-4000000000, statis points.
2. now test frequency
3. average value
4. max value
5. min value
6. peak-peak value
7. 1MR,input impendence,50OHM OR 1MOHM
8. std is inside or extern
9. gate times
10. LPF select, channel 2 fequency test mode

1. now frequency
2. std select
3. gate times
   P reference for CH1 FREQ mode

channel 2 status mode

• reference channel 1 status mode

Connect PC
Usb print port connect to PC，usb chip is ft232rl,can search in web.

USB, config command

• Default bauard is 9600bps，used ascii code
• $R*press RST key,return KEY RST ROK
• $M*press MODE key,return KEY MODE MOK
• $G* Press GATE key，return KEY GATE GOK
• $CXX* XX:0-63, setting LCD contrast,save in EEPROM,return SET LCD CONTCOK
• $BXXXXX* setting baudrate ,XXXXX 00480,00960,01920,03840,05760,11520,Power off without save,retun BOK
• $S* read statis data
• The following instructions are powered off and saved
  • $E2020* power up select CH1 frequency mode
  • $E2121*power up select CH1 frequency statis mode
  • $E2222* power up select CH2 frequency mode
  • $E2323*power up select CH2 frequency statis mode
  • $E3030* CH1 select 50R
  • $E3131* CH1 select 1MR
  • $E3232* BEEP ON.
  • $E3333* BEEP off
  • $E3434*opened high precision mode
  • $E3535* closed high precison mode,all input freqney is 8 digitS/second
  • $E4040select CH1=50R,input 10M 0dBm,calibration power meter, used with $E4141 command
  • $E4141* select CH1=50R,input 10M -20dBm,calibration power meter

use notes
Away from high temperate,away from jam,power input must be less than DC12.5V

Block diagram

FAQ

Q : how can I know the machine is good
A: connect front panel 10M to rear panel CH1, LCD will display 10M means counter is good.

Q: test low frequency, frequency is not accuary, how to do
A: open LPF

Q: can used oscillator pen to test
A: not suggest, because X1 frequency is limit , X10 is HIGH impedance, it is easy to signal attenuator, can not test

Q: what is the application of the usb port.
A: communication, control counter with PC.

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