External UDP broadcasts pass information from N1MM Logger+ about the contest in progress to various third-party software programs. UDP broadcasts stay in the same network (same subnet) and cannot be broadcast directly over the Internet.
There are additional UDP broadcasts built into N1MM Logger+, which are sent by default, but (except as noted) they are not very useful for general users. One example is the real-time score reporting application.
Vasily K3IT has found that if both SO_BROADCAST and SO_REUSEADDR options are used when a UDP port is opened, it is opened in a ‘non-exclusive’ mode. This allows multiple applications to share the same port, as long as they all follow this method. Using these flags helps avoid port conflict issues.
To enable external UDP broadcasts select >Config >Config Ports… >Broadcast Data.
Selecting which UDP Broadcasts to Send
|Application Info||Broadcasts information about the station and the current contest (station name, contest database, contest name…) when the program launches, when a new contest is opened, or when a different contest is selected in the Contest Dialog window. See full field list below|
|Radio||Broadcast radio information (mode, frequency, antenna, operator…) at least every 10 seconds or when radio frequency or mode change. See full field list below|
|Contact||Broadcasts contact information (time, callsign, mode, frequency, exchange…) when a new contact (QSO) is added to the log, when an existing contact is edited in the log, or when an existing contact is deleted from the log. See full field list below All QSOs,Broadcast all contact info from all stations on a network from this station. This command is useful only in Networked Computer mode. When enabled (together with Contact) at any station, that station will rebroadcast every contact that it receives to the UDP port specified. The XML format is the same as for Contact except that IsOriginal will be set false. CAUTION: Multiple, misconfigured stations with All QSOs enabled could result in a circular network storm of contact packets|
|Spots||Broadcast info about spots as they are processed (added or deleted). Spots may originate from telnet (including RBN), from logging QSOs, or from local spots stored in the Bandmap|
Setting the Destination IP Addresses
The Application, Radio, and Contact packets will be addressed to destinations indicated in this dialog window. To send them to a program running on this PC, use the address 127.0.0.1. To send them to another PC on this subnet, enter its IP on the corresponding line. To send them to all PCs on this subnet, enter 255 as the last number (octet) of this subnet’s address. For example: if PCs on this subnet have the address 192.168.1.n, use 192.168.1.255 to send the packets to all of the PCs on this network. Separate multiple destination IP address from each other with a space. Do not specify 255 in the higher order octets, or you will risk broadcasting to the internet. While eventually the packets will be discarded by internet routers, it will not endear you to your ISP.
Setting the Destination IP Port Numbers
The recommended default port number for N1MM Logger applications is 12060. Destination port numbers are defined by adding a colon “:” to the IP address, followed by the port number. For example, to send packets at port 12060 to this PC and to all other PCs on this subnet: 127.0.0.1:12060 192.168.1.255:12060
Other UDP Broadcast Settings
Optional External Broadcast statements allow different external broadcast types to be sent to different IP addresses, multiple IP addresses, and multiple port numbers. Refer to the instructions for those applications for confuguration details about adding their packet addressing information to the N1MM Logger.INI file.
Formatted XML text of the following packets is available in the Downloads section of the website under Additional Support Files.
XML Schema and Broadcast Field Lists
NOTE: contestnr is a unique number assigned to this contest in this database. Do not expect the same contestnr to be assigned to another computer running the same contest name.
Contact Info UDP packet
- IsOriginal indicates that this is the station on which this contact was initially logged – to differentiate from another station that may be forwarding the contact record. StationName is the netbios name of the station that sent this packet, not necessarily the name of the station that logged this contact.
- ”power”, “name” and “qth” refer to information about the station being worked in this contact. In a contest where transmit power is part of the exchange, “power” will contain the received power exchange from the other station.
- “band” is composed of 2 or 3 characters that may include localized delimiters. For example, 80 meters may be “3.5” or “3,5”; 160 meters as “1.8” or “1,8” The user’s Windows setting will determine which delimiter is present in the band tag.
- ADIF fields in ContactInfo – It may be tempting to assume that there is a one-to-one correspondence between fields in the contactinfo broadcasts and similar fields in the ADIF specification, but this is not always the case. The best example is the Section field in the contactinfo broadcast; this means whatever the rules for the particular contest define it to mean. In a few contests, the Section field is the same as the ADIF ARRL_SECT; in many more contests and for most geographical locations, it may be the same as STATE in ADIF. However, in some contests for some geographical locations (e.g. Alaska, Hawaii, the District of Columbia, the Canadian Atlantic provinces, Canadian northern territories) the section identifier specified in the contest rules might not match either ADIF field. Another example is the Zone field, which often means the same as CQZ in ADIF, but in some contests it means the same as ITUZ. Yet another example is the frequency field, which is not in the same format as in ADIF; in the contact info and radio info broadcasts, the frequency is exported in units of 10 Hz.
The Contact Replace packet contains the same fields as Contact Info above, but with ❮contactreplace❯ XML tags.
When a user edits an existing contact record, the program will send a pair of UDP packets: A ❮contactdelete❯ packet, followed by a ❮contactreplace❯ packet. The ❮contactdelete❯ packet will contain the existing record’s callsign and timestamp, in the event that the ❮contactreplace❯ packet includes a new timestamp or callsign for this record.
NOTE: The LookUp UDP packet structure is identical to the ContactInfo packet described previously. The purpose of the LookUp packet it to advise a third-party application (usually a general purpose logging program) of the intention to work a station. The difference between the two packets is the timing of their transmission. The LookUp packet is broadcast after entering a callsign in the Entry Window and pressing the [Tab] key or [spacebar], but before the callsign is logged in the N1MM database. In contrast, the ContactInfo packet is broadcast after a new record has been added to a contest log. LookUp and ContactInfo are two separate functions and each needs to be configured in N1MM+’s Configurer >Broadcast Data tab. The default port for LookUp packets is 12060.
5.4. Radio Info
Radio Info Notes:
- StationName is the NetBios name of the computer that is sending these messages. It is the name used in Mulit-Computer networking. Windows limits it to 15 characters. If the computer name is greater than 15 characters long, the first 15 characters will be used.
- RadioNr is the radio number associated with a specific XML packet – in other words, the source of the information in that packet. When in SO2V or SO2R mode, N1MM+ sends two packets every ten seconds – one packet each from RadioNr1 and RadioNr2
- Freq is the receive frequency represented as values to the tens digit with no delimiter. For example: 160 meters: 181234; 40 meters: 712345; 10 meters: 2812345; 6 meters: 5012345
- TXFreq is the transmit frequency represented as values to the tens digit with no delimiter. For example: 160 meters: 181234; 40 meters: 712345; 10 meters: 2812345; 6 meters: 5012345
- Mode could be any one of the following: CW, USB, LSB, RTTY, PSK31, PSK63, PSK125, PSK250, QPSK31, QPSK63, QPSK125, QPSK250, FSK, GMSK, DOMINO, HELL, FMHELL, HELL80, MT63, THOR, THRB, THRBX, OLIVIA, MFSK8, MFSK16
- OpCall is the callsign entered by the operator after OPON (or Ctl-O). Defaults to the station call
- IsRunning represents the value of the RUN versus S&P radio buttons in the Entry Window. If you are on your CQ frequency, IsRunning will be True
- FocusEntry is the Windows assigned handle of the Entry Window with program focus
- Antenna is the currently selected antenna for this radio (0-15), from the Antenna tab in the Configurer
- Rotors is the name of the currently selected rotor from the Antenna table in the Configurer
- FocusRadioNr Receive Radio Focus – the Green Dot in the Entry Window. Enables signal switching for SO2R operation – facilitating the routing of Microphone, Audio, PTT, CW signals to/from the selected radio. FocusRadioNr toggles between 1 and 2 when the program, a mouse click, or the \ key selects the opposite Entry Window
- IsStereo enables audio switching for SO2R operation.The ` key (backquote) toggles its value between True and False
- ActiveRadioNr Transmit Radio Focus – the Red Dot in the Entry Window. Enables signal switching for SO2R operation – facilitating the routing of Microphone, Audio, PTT, CW signals to/from the selected radio. ActiveRadioNr toggles between 1 and 2 when the program or pressing the [Pause] key selects the opposite Entry Window
- IsTransmitting Program is in transmit (True) or receive (False) mode
- FunctionKeyCaption The label of the Function Key that was pressed to initiate this transmission
The program sends Radio Info packets at 10 second intervals, or immediately after an event where any of the information in one of these fields changes (for example: user changes bands, spins the VFO dial, switches from Run to S&P, or selects VFOb).
The IsTransmitting tag in RadioInfo only displays as True when N1MM+ has initiated a transmission. When a transmission is initiated external to N1MM+ – for example, a microphone PTT button or CW paddle key – IsTransmitting will still be displayed as False. Be careful when using IsTransmitting to control external devices that need to know when the radio is in Tx or Rx.
Broadcasts to operate the separate Rotator Control program are sent automatically when the user selects >Tools >Turn Rotor (alt+J), and do not require configuration settings or modifications to the N1MM Logger.ini file. The broadcasts are always sent on port 12040. See the Rotator Control chapter for more information.
The Spot Data packet contains all spots processed by the program whether from Telnet (including RBN), Logging QSOs, or local spotting.
The values for action are:
The values for status are:
- busy – marked by N1MM user as a frequency to note
- bust – a busted call (when CT1BOH tags are present)
- cq – the cq frequency on this band (last place F1 was pressed)
- dupe – duplicate contact
- qtc – a WAE qtc
- single mult – this spot is a single multiplier in this contest
- double mult – this spot is a double (or more) mult in this contest
- new qso – a logged qso (this is now a dupe by definition)
Spot UDP Packet:
- StationName – the callsign shown in the station dialog
- dxcall – the station that is spotted
- spottercall – the station that spotted the call (StationName for stations worked, or spotted locally)
- comment – the comment from the spot
- action – whether this spot was added or deleted (spots are deleted when they move within a band)
- status – dupe, mult etc. See above for values
- timestamp – the time of the spot
Sending Spectrum Data to N1MM+
N1MM+ receives spectrum data from SDR receivers on port 13064. Follow this XML layout:
- Name is the name of your source. It will be shown in the N1MMPlus UI
- LowScopeFrequency is lowest frequency represented by the signal levels in SpectrumData
- HighScopeFrequency is highest frequency represented by the signal levels in SpectrumData
- ScalingFactor is a number that converts your 0-N data in SpectrumData to dB for display in the UI
- DataCount is the number of signal levels sent in SpectrumData
- SpectrumData is comma separated signal level values. Icom uses a range from 0-160. We can accept integer values from 0-65535.
- Spectrum Window help can be found at: Spectrum Window Help
To show this data in N1MM+:
- Open a Spectrum Display window (Windows/Spectrum Display).
- Right-click and change Spectrum Source to “Source Name”.
- Set the source name to the Name you are sending in the message above.
We’ve tried to minimize the development effort from your side by only requiring six pieces of meta data and your level information in the same fashion that you display level data on your UI. Icom provides this data about 3x per second and that seems adequate. We wouldn’t want more than 5x to 10x per second to avoid overloading the users machines, since so many users have older processors.
In addition to the xml data, you would need to allow your users to specify an IP address to send the data to. You will probably want to allow your users to name the source, in the event there is more than one spectrum display on their networks.
If you would like to see what the spectrum UI looks like, I have prepared a 4 minute video at: Spectrum Video
Sending Log Data to N1MM+
N1MM+ can receive log data from other logging programs (such as JTDX, JTAlert and WSJT-X version 1.9.0) via connections on the IP address and port specified at the bottom under the Broadcast Data tab in the Configurer (the default for JTDX TCP packets is 127.0.0.1:52001, for JTAlert and WSJT-X UDP packets is 127.0.0.1:2333). There is an Enable check box that must be checked before the program will accept data on either port; you may need to shut down and restart N1MM+ after checking the Enable check box.
The data sent from the other program must be in the following format:
❮command:3❯Log ❮parameters:nnnn❯QSO data record (where “nnnn” = length of ADIF character string)
❮command:3❯Log ❮parameters:146❯ ❮Band:3❯20M ❮Call:5❯M4HXM ❮Freq:6❯14.076 ❮Mode:4❯JT65 ❮QSO_DATE:8❯20110419
❮TIME_ON:6❯184000 ❮RST_Rcvd:3❯-03 ❮RST_Sent:3❯-07 ❮TX_PWR:4❯20.0 ❮EOR❯
The QSO data will be inserted into the currently defined N1MM+ contest log.
The following ADIF field tags are supported:
“CALL”, “QSO_DATE”, “TIME_ON”, “CONTEST_ID”, “MODE”, “FREQ”, “FREQ_RX”, “BAND”, “COMMENT”, “CQZ”, “ITUZ”, “GRIDSQUARE”, “NAME”, “RST_RCVD”, “RST_SENT”, “TX_PWR”, “RX_PWR”, “SRX”, “STX”, “QTH”, “OPERATOR”, “RADIO_NR”, “POINTS”, “ARI_PROV”, “ARRL_SECT”, “DIG”, “DISTRIKT”, “DOK”, “IOTA”, “KDA”, “OBLAST”, “PFX”, “RDA”, “SAC”, “SECT”, “STATE”, “IARU_ZONE”, “SECTION”, “NAQSO_SECT”, “VE_PROV”, “UKEI”, “WWPMC”, “PRECEDENCE”, “CHECK” and “EOR”.
You will encounter port errors when two programs – like N1MM+ and WSJT-X – try to access the same com ports in Windows. The solution requires some form of serial port sharing. You have many choices: VSPE, com0com, LP-Bridge, Win4K3… We do not plan to be prescriptive – use whichever one you can get to work or is included with your general logging program.
If you are going to be running a dedicated JT65 / FT8 operation with WSJT-X and just using N1MM+ as a back-end contest database, you can create a custom INI file that launches N1MM+ without enabling its CAT interface. This prevents any of the serial port complications. See the documentation about using a custom INI file and launching N1MM+ with custom INI settings enabled here, in the section called Multiple ini files.
Frankly, though, if at all possible it would probably be better to use the integration between WSJT-X and N1MM+ described here (in the description of the WSJT Decode List window). This method in effect allows both programs to share rig control by having WSJT-X do its rig control via sending commands to N1MM+ instead of directly to the radio. This method does not use UDP port 2333; instead, it communicates with WSJT-X using the protocol defined in WSJT-X (and not described here) on port 2237.