- 1CW Skimmer
- 1.2Setup
CW Skimmer
General
- This implementation loads and connects SmartSDR to CW Skimmer without using a virtual serial port pair. Connection is accomplished using TCP/IP and special Telnet commands.
- This feature only supports F6000 radios.
- This feature only works with Slices A/B.
- Optionally, VFO B can be set from a CWS waterfall or band map click.
- Optionally, the call sign can be sent to DXLab's WinWarbler when a CWS waterfall or band map is clicked.
Setup
Cw skimmer serial in Title/Summary Skimmer Server The program features: simultaneous decoding of all CW signals on up to 7 bands, up to 192 kHz coverage on each band, based on the same super-sensitive CW decoding algorithms as CW Skimmer, standard Telnet interface to the loggers and cluster monitors, and more.
- You must own a registered copy of CW Skimmer (v1.83 or later) which can be obtained from the DX Atlas web site.
DDUtil
- In the CW Skimmer group on the Features tab.
- In the window next to the Enable check box select the TCP/IP port to be used to communicate with CW Skimmer (default is 7310).
- Select the Skimmer Close check box if you want CW Skimmer to close when the Enable check box is un-selected or when DDUtil closes.
- Not selecting this check box will cause CW Skimmer to be minimized when the Enable check box is un-selected or when DDUtil closes.
- Select the QSY VFO B check box if you want VFO B to QSY when a CWS Waterfall trace or a call is clicked in CW Skimmer.
- Select the WinWarbler check box if you want WinWarbler's Call window to be populated with the Band Map call sign if the call sign is clicked.
- Select the Enable check box.
Cw Skimmer Serial Key
CW Skimmer
- ScreenShots: Software Description: CW Skimmer is a multi-channel Morse code (CW)decoder and analyzer program for Microsoft Windows. Here are some key features of “CW Skimmer”:– a high sensitivity CW decoding algorithm based on the methods ofBayesian statistics;– simultaneous decoding of ALL cw signals in the receiver passband- up to 700 signals can be decoded in Read more →.
- CW Skimmer; The CW keyer is a K1EL Winkeyer USB controlled solely by the N1MM logger. The routing of IQ signals from LP-PAN2 SDR is done through a MOTU 828 mk3 interface, simply to be able to split the signal so that both NAP3 and CW Skimmer can use it. CW Skimmer gets the IQ signal directly from the MOTU.
- Cw Skimmer Serial Number. 7/20/2017 0 Comments MRP4. 0 Morse Code Decoder. 0 is a powerful and highly- effective ham radio software program that decodes.
- When CW Skimmer starts for the first time from DDUtil, open the Settings pane and configure the following tabs.
- Radio tab
- Hardware Type → SoftRock
- Sample Rate → to match DAX IQ Stream in the DAX control panel for slice A.
- Lo Frequency → This is automatically set by DDUtil.
- CW Pitch → to match the CW Pitch frequency in the SmartSDR CW panel.
- ' Audio tab
- Soundcard Driver → WDM.
- Signal I/O Device → DAX IQ RX 1.
- Audio I/O Device → to match your system's Play Back Audio Device.
- All other settings use the default values.
- Telnet tab
- Enable Telnet Server → selected.
- Port → set to desired port or use the default port 7310.
- Require Password → not selected.
- Do not send callsigns without CQ → user preference, but usually not selected.
- Allow Skimmer Commands → selected
- All Other Tabs
- Set as desired/required.
- Radio tab
SmartSDR
- Open the DAX Control panel
- In the IQ Streams group
- Set the #1 sample rate to match what you setup in the CW Skimmer settings panel.
- Enable the #1 stream by pressing the #1 button.
- In the IQ Streams group
- Open the DAX item of the Panadapter controls group.
- Select the DAXIQ Channel (1) set above.
Note: → Any DAXIQ Channel may be selected as long as the above settings and the CWS Skimmer Setup panel agree.
Operation
- Use CW Skimmer as you would normally.
- Frequency control can be set from either SSDR or CW Skimmer.
- If working a pile up and you have selected the QSY VFO B option when you click a station in CWS VFO B will be QSY'ed to that frequency.
- Sometimes when CW Skimmer is first started, a Knob Bump is required to synchronize the CW Skimmer frequency display.
DXLab Interoperation
- Selecting the WinWarbler check box in the CW Skimmer group on the Features tab will cause:
- DDUtil to send the call sign of the station that was clicked in the CW Skimmer band map to WinWarbler's QSO Panel.
- If DXKeeper is running a call sign look up will be initiated to fill in the remainder of the WinWarbler QSO Panel information.
- Commander also needs to be running so frequency and mode information can be available for logging purposes.
For information on how to set up your system from scratch with Red Pitaya, CW Skimmer Server and RBN Aggregator running nicely together you may find helpful guides hereand here.
A lot of resources on CW Skimmer Server can also be found here.
Instructions for the Red Pitaya 122-16 can be found further down the page.
The basic installation of Pavel Demin’s software on the Red Pitaya is described here.
By default, the CW Skimmer Server application assumes a receiver with a usable bandwidth to sample rate ratio of 95%. (e.g. 182kHz at 192ksps, 91kHz at 96ksps, and 45.5kHz at 48ksps).
This is the typical performance of commercial multi-band SDR such as Quicksilver QS1R or Hermes. The most recent Red Pitaya 122-16 also supports this.
However, the Xilinx Zynq 7010 SoC in the Red Pitaya 125-14 does not contain enough FPGA resources to achieve this quite high bandwidth to sample rate ratio.
Due to this, the default parameters in SkimSrv.ini will give poor performance close to the lower band edge with a Red Pitaya 125-14 based receiver. For full performance also at the lower band edge, the default center frequencies, for each band and sample rate, need to be adjusted downwards.
Another reason to modify the default configuration file is to add support for the 60m band. This band is included in all the files below but may need adjustment since this band is not globally regulated like other ham bands.
A link to an Excel sheet for calculating suitable center frequencies for arbitrary frequency bands and usable bandwidth ratios can be found below. The spreadsheet is pre-populated with the data for Pavel Demin’s receivers for the Red Pitaya 125-14 and Red Pitaya 122-16.
The first three SkimSrv.inifiles in the zip file below are intended for use in a 24h four-stroke cycle: night, dawn, day, and dusk. This enables you to skim all eleven HF ham radio bands during their respective relevant hours in spite of the fact that the receiver only supports eight bands at any one time. More details on how to set up RBN Aggregator for such cycling can be found on the Aggregator page.
The fourth SkimSrv.ini in the zip file is intended for contest operation which means continuous use with an increased bandwidth.
Please note that the files can not be used “as is” in your system since they contain station specific data such as QTH and have a normalized calibration factor. To avoid creating off-frequency spots it is very important to calibrate your skimmer receiver. More information on how to do this can be found on the Calibration page.
The basic installation procedure for the Red Pitaya 122-16 is described here.
Since the 122-16 is capable of running two parallel HPSDR-compatible receivers, there is no need for ini file cycling to cover all shortwave bands, including beacon segments, and 6m. Below you will find a zip file with two example ini files set up to do this.
This however also requires two instances of CW Skimmer Server running concurrently. To do this on the same PC, it is necessary to create a copy of CW Skimmer Server’s installation folder with a different name and also rename the copy of the SkimSrv.exe executable file in it.
Also, since the larger FPGA on the 122-16 enables more advanced downsampling filters, it achieves a bandwidth-to-samplerate ratio of 95% just like the QS1R which means there is no need to adjust the center frequency of each band like with the 125-14 above.
Forcing each instance of SkimSrv to connect to the right receiver instance is done through the naming of the file HermesIntf.dll.
The two dll files (one in each SkimSrv folder) needs to be renamed to HermesIntf_xyzw.dll and HermesIntf_FFzw.dll, respectively, where xyzw are the last four hexadecimal digits in the Pitaya’s MAC address. The MAC address of the second receiver always has 0xFF as the third and fourth hexadecimal digits from the right. The Red Pitaya’s MAC address is shown on the little sticker on top of the RJ-45 Ethernet connector.
Assuming a Red Pitaya with a MAC address of 00:26:32:F0:71:4F and a PC user name of SM7IUN:
Folder C:Program Files (x86)AfreetSkimSrv then should contain SkimSrv.exe and HermesIntf_714F.dll
Folder C:UsersSM7IUNAppDataRoamingAfreetProductsSkimSrv should contain SkimSrv.ini
and
Folder C:Program Files (x86)AfreetSkimSrv2 should contain SkimSrv2.exe and HermesIntf_FF4F.dll
Folder C:UsersSM7IUNAppDataRoamingAfreetProductsSkimSrv2 should contain SkimSrv2.ini
Cw Skimmer 2.1 Serial Key
The Hermes communications protocol is somewhat vulnerable and starting the second Skimmer Server instance too soon after the first may cause a crash of both. It is recommended to wait 5-10 seconds before starting the second instance to allow time for the data transfer to stabilize. If you set up Skimmer Server to start at boot, a simple utility to create this separation in time is Startup Delayer. Another alternative is to use the Associate programs feature of RBN Aggregator to start the instances with a safe separation in time.
Also note that the files below can not be used “as is” in your system since they contain station specific data such as QTH. They also have a normalized calibration factor. To avoid creating off-frequency spots it is very important to calibrate your skimmer receiver. More information on how to do this can be found on the Calibration page.