5MHZ-2GHZ RF noise signal source Signal generator Spectrum analyzer tracking Shielded for Ham Radio amplifier filter |

Description:

• Features:
  
  
  
  Noise Signal Source NF-1000 Instruction Manual
  
  I. Introduction
  
  1 , the operating frequency range ( Frequency Range ): of
  NF-1000 (5MHZ-2GHZ)
  
  2. Output level range: -36dBm to -10dBm
  
  3. Output level step: 0.05dB
  
  4. Flatness: ± 0.5dB ( within 1GHZ )
  
  5, power ( Power ): + 12V ( 150mA )
  
  6. Dimensions: W * H * D = 82.8 * 28.8 * 108mm
  
  7. Weight : less than 200g
  
  8 , OLED display, key operation interface, with USB
  interface ( provide communication protocol )
  
  Accessories: 12V power adapter, SMA-Q9 wire accessory "12V
  adapter
  
  Second, the input and output description
  
  1. Output port is noise signal output, frequency range:
  (5MHZ-2GHZ) , flatness within 1G
  
  2 , the input interface comprises a USB-B port input and the
  DC-IN connector input
  
  Operation
  
  1 , S1 : Move the cursor to the right
  
  S2 : Cursor position value minus
  
  S3 : Confirmation (After the data is changed, you need to
  press the confirmation button)
  
  S4 : cursor position value plus
  
  S5 : Move the cursor to the left
  
  Every time you need to change the output frequency or modify
  the output power, you should press S1 or S5 to jump to the
  modifiable state. When the cursor is at the first (last)
  position of a column, press S1 ( S5 ) to jump to another
  column.
  
  
  
  use
  
  Because of its small size, light weight and easy to carry,
  it can perform field calibration, maintenance on industrial
  automation field instruments, and provide accurate noise
  signal sources for outdoor measurement work.
  
  
  
  1. When used as a tracking source, the S21 parameter of
  filters, amplifiers, cables and other devices can be tested
  with a spectrum analyzer, and the standing wave of an
  antenna can be tested with a radio frequency bridge.
  
  2. When used as a shield source, the output is connected to
  a band-pass filter of the corresponding frequency and then
  connected to a power amplifier.
  
  
  
  Measured data spectrum
  
  -10dBm output curve
  
  -20dBm output curve
  
  -30dBm output curve
  
  Noise amplitude curve in 2GHz frequency range
  
  
  Cooperate with spectrum analyzer to measure filter
  
  6.1 Measuring 88MHZ to 108MHZ filter
  
  6.2 Measuring 50MHZ to 100MHZ filters
  
  6.3 Measuring 200MHZ to 300MHZ filters
  
  
  
  
  
  
  
  
  Secondary development, serial communication protocol
  
  The overall structure of the radio frequency signal source
  series protocol adopts the command line mode, the
  communication baud rate is 115200bps, the PC sends out the
  command, the local machine parses and executes, and then
  returns the result to the PC. The command is limited to
  lowercase letters a~z, numbers 0~9 , The end symbol of each
  command is a newline character (in hexadecimal notation is
  "0x0a"), and the total length of the PC command is up to 15
  characters (including 0x0a).
  
  DDS series module communication commands include three types
  of commands: w command, r command, and c command.
  
  rid command: read version number
  
  The PC sends "rid+ 0x0a", the machine returns the machine
  model, and the return result is: ADF5355 (Note that the data
  format of the machine model returned is in ASCII character
  format, no need to judge the model, as long as it is
  displayed, it will be OK).
  
  wv0 command: set amplitude value
  
  The format is: wv0xxxx + 0x0a, a total of 8 bytes;
  
  Where "xxxx" is the attenuation value represented by 4
  digits, such as:
  
  wv01100+0x0a: indicates that the write attenuation is:
  11.0+10.0=21.0DB (10DB needs to be added)