Interface for WSA4000
connect() must be called before other methods are used.
This command selects and queries the active antenna port.
Parameters: | number – 1 or 2 to set; None to query |
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Returns: | active antenna port |
This command will start the single block capture and the return of ppb packets of spp samples each. The data within a single block capture trace is continuous from one packet to the other, but not necessary between successive block capture commands issued.
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connect to a wsa
Parameters: | host – the hostname or IP to connect to |
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This command sets or queries the rate of decimation of samples in a trace capture. This decimation method consists of cascaded integrator-comb (CIC) filters and at every value number of samples, one sample is captured. The supported rate is 4 - 1023. When the rate is set to 1, no decimation is performed on the trace capture.
Parameters: | value (int) – new decimation value (1 or 4 - 1023); None to query |
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Returns: | the decimation value |
close a connection to a wsa
Check if the VRT stream has closed.
Returns: | True if no more data, False if more data |
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Flush capture memory of sweep captures.
Flush capture memory of sweep captures.
This command sets or queries the tuned center frequency of the WSA.
Parameters: | freq (int) – the new center frequency in Hz (0 - 10 GHz); None to query |
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Returns: | the frequency in Hz |
This command sets or queries the frequency shift value.
Parameters: | freq (int) – the new frequency shift in Hz (0 - 125 MHz); None to query |
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Returns: | the amount of frequency shift |
This command sets or queries RFE quantized gain configuration. The RF front end (RFE) of the WSA4000 consists of multiple quantized gain stages. The gain corresponding to each user-selectable setting has been pre-calculated for either optimal sensitivity or linearity. The parameter defines the total quantized gain of the RFE.
Parameters: | gain – ‘high’, ‘medium’, ‘low’ or ‘vlow’ to set; None to query |
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Returns: | the RF gain value |
Check if there is VRT data to read.
Returns: | True if there is a packet to read, False if not |
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Check if we have permission to read data.
Returns: | True if allowed to read, False if not |
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Returns the WSA4000’s identification information string.
Returns: | “<Manufacturer>,<Model>,<Serial number>,<Firmware version>” |
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This command sets or queries variable IF gain stages of the RFE. The gain has a range of -10 to 34 dB. This stage of the gain is additive with the primary gain stages of the LNA that are described in gain().
Parameters: | gain – float between -10 and 34 to set; None to query |
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Returns: | the ifgain in dB |
This command queries the lock status of the RF VCO (Voltage Control Oscillator) in the Radio Front End (RFE) or the lock status of the PLL reference clock in the digital card.
Parameters: | modulestr – ‘vco’ for rf lock status, ‘clkref’ for mobo lock status |
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Returns: | True if locked |
This command sets or queries the RFE preselect filter selection.
Parameters: | enable – True or False to set; None to query |
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Returns: | the RFE preselect filter selection state |
Raw read of VRT socket data from the WSA.
Parameters: | num – the number of bytes to read |
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Returns: | bytes |
Read a single VRT packet from the WSA.
Aquire exclusive permission to read data from the WSA.
Returns: | True if allowed to read, False if not |
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Resets the WSA4000 to its default settings. It does not affect the registers or queues associated with the IEEE mandated commands.
Send a SCPI command and wait for the response.
This is the lowest-level interface provided. Please see the Programmer’s Guide for information about the commands available.
Parameters: | cmd (str) – the command to send |
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Returns: | the response back from the box if any |
Send a SCPI command.
This is the lowest-level interface provided. Please see the Programmer’s Guide for information about the commands available.
Parameters: | cmd (str) – the command to send |
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Add an entry to the sweep list
Parameters: | entry (thinkrf.config.SweepEntry) – the sweep entry to add |
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Remove all entries from the sweep list.
Read an entry from the sweep list.
Parameters: | index – the index of the entry to read |
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Returns: | sweep entry |
Return type: | thinkrf.config.SweepEntry |
Start the sweep engine.
Stop the sweep engine.
This command sets or queries the type of trigger event. Setting the trigger type to “NONE” is equivalent to disabling the trigger execution; setting to any other type will enable the trigger engine.
Parameters: | settings (thinkrf.config.TriggerSettings) – the new trigger settings; None to query |
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Returns: | the trigger settings |
Sweep entry for thinkrf.devices.WSA4000.sweep_add()
Parameters: |
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Trigger settings for thinkrf.devices.WSA4000.trigger().
Parameters: |
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A Context Packet received from thinkrf.vrt.Stream.read_packet()
a dict containing field names and values from the packet
Parameters: | ptype – “Receiver”, “Digitizer” or None for any packet type |
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Returns: | True if this packet matches the type passed |
Returns: | False |
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A Data Packet received from thinkrf.vrt.Stream.read_packet()
a thinkrf.vrt.IQData object containing the packet data
Returns: | False |
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Returns: | True |
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Data Packet values as a lazy collection of (I, Q) tuples read from binary_data.
This object behaves as an immutable python sequence, e.g. you may do any of the following:
points = len(iq_data)
i_and_q = iq_data[5]
for i, q in iq_data:
print i, q
Return a numpy array of I, Q values for this data similar to:
array([[ -44, 8],
[ -40, 60],
[ -12, 92],
...,
[-132, -8],
[-124, 56],
[ -44, 80]], dtype=int16)
A VRT Packet Stream interface wrapping socket.
Returns: | True if there is data waiting on socket. |
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Read a complete packet from socket and return either a thinkrf.vrt.ContextPacket or a thinkrf.vrt.DataPacket.
Wait for and capture a data packet and a reference level packet.
Returns: | (data_pkt, reflevel_pkt) |
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Retry socket read until count data received, like reading from a file.
Return an array of dBm values by computing the FFT of the passed data and reference level.
Parameters: |
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This function uses only dut.ADC_DYNAMIC_RANGE, data_pkt.data and reflevel_pkt[‘reflevel’].
Returns: | numpy array of dBm values as floats |
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