PZTLog came about because I wanted an easy-to-use logging application with simple/quick entry of various QSO fields plus the ability to export the data into a mapping format.

Whether you want a simple QSO logger for the odd bit of HF DX or VHF “square-bashing”, or an everyday logger with Stats, PSK/RTTY modes, eQSL uploading and simple Contest dupe/serial-number integration – PZTLog may be just what you’re looking for…

PZTLog serves as a general-purpose logger (whether live or typing-up later) for ragchews as well as helping me keep track of contest QSOs on HF/VHF.  There’s built-in PSK31 (and 63/125) + RTTY Datamodes, QRZ.com XML lookup, GoogleMaps KML output (eg: display QSOs in Google Earth), ADIF export, eQSL upload, DX Spot database with archive facility, CQ Voice Keyer, Contest “dupe-checking” and more. The software can run over a network, such as a multiband contest with a shared log and dupe/new-band alerts.

There are 2 “modes” that you can run PZTLog in: Full Mode offers a single-window with all of the log/cluster/datamode functions whilst Simple Mode offers a “windows” feature with a low-profile logger and optional Datamodes, DX Cluster and Log Viewer windows which can be moved/sized accordingly.


  • Simple Logging without the fuss
    Small GUI, basic QSO-entry fields and ideal for netbooks/laptops “in the field”
  • Flexi-Input of QSO Data – in almost any order you like!
    Enter Callsign, RST-Sent, RST-Received, QRA Locator, IOTA/WAB, CQ/ITU Zone and Comments/Multiplier in the same textbox and PZTLog will place it in the correct field for you – No more tabbing to find the relevant textbox!
  • QRZ.com XML Lookup
    With a subscription to QRZ, you can look-up the Name, City, Locator Square, IOTA and State when entering a Callsign in either the Logbook Entry or QSO Edit windows.
  • DX Cluster via Telnet and DX Spot Archive
    Keep an eye on the latest DX spots, and filter via the band/s you are interested in. A DX Spot archive is now created within the DXSpots.mdb file – this is used to keep a list of previous DX Spots.
  • Contest-friendly
    You can tell PZTLog to only commit a QSO to the Logbook once a Locator and/or Serial Number has been entered. The current Serial Exchange is shown in large text for easy viewing. A “dupe” alert is also shown if configured.
  • Datamodes : PSK31, PSK63, PSK125 and RTTY
    Using the MMVari engine you can operate PSK/RTTY at a variety of speeds – A waterfall display, TX/RX window plus QSO Macros are available and make PZTLog great for casual (not to mention contest) datamode operating. With built-in PSK/RTTY, CQ Voice-Keyer and PTT control – you can easily switch between data+phone without having to fiddle with cables, buttons or settings on the radio! Double-click received text to set Callsign, Locator, RST/Serial, Name/QTH etc – great for a face-pased RTTY contest or PSK QSOs.
  • eQSL Automatic (or manual) Upload
    Each QSO, when saved, can be automatically uploaded to eQSL either from PZTLog or via PZTFTP as part of the usual logbook FTP upload process.
  • JT65-HF Traffic Window
    You can display the CSV file from the JT65-HF software and easily add QSOs to PZTLog but double-clicking the exchanges.
  • Networkable
    Multiple PZTLog workstations can be linked to use a shared logbook file
  • QSO Log Window
    Displays the QSOs in the log for easy look-up as well as “have we worked before”, new band/mode slot and new locator square etc. When a callsign is entered in Full Mode, PZTLog will revert the Log display to show all previous QSOs with that station – and, in the case of Contest operating, will alert you to a “dupe”. It also shows you DXCC data so if you hear a callsign and can’t remember the Country it belongs to, just type 3 (or more) characters and PZTLog will tell you.
  • Distance and Bearing Calculator
    When using QRA Locators, PZTLog will give you distance (in miles+kilometres) plus bearing for the target locator square.
  • Audio Voice Keyer and CW Keyer
    Play up to 4 MP3/WAV file CQ messages with PTT keying via COM port – this requires an opto-isolator for PTT switching, eg: a “soundcard” interface as used with AGW/PSK31/WSPR etc. A new CW Keyer using the CWType API can be used to send CW – great for quick CW QSOs. Basic Macros for CW are supported.
  • Export to ADIF/eQSL, CSV, GoogleMaps KML, Text
    You can export your Logbook Database to a ADIF/eQSL, CSV or simple Tabbed Text File. You can also export to GoogleMaps KML for plotting of worked stations on a map (uploaded to your webspace via PZTFTP). There is also a basic ADIF import routine so you can easily upload the exported ADIF file to ClubLog/eQSL etc.

Despite the variety of features, PZTLog is easy-to-use and great for Club-events as an alternative to paper logging. The Flexi-Input allows for rapid-entry of QSO details so great for single-op working or even the non-computer-literate! You are given Logbook Entry, LogView, DX Cluster and Datamodes in a single window. A separate Log Viewer window is also available. This caters for most requirements, screen resolutions as well as operating preferences.

PZTLog Downloads
This software is free to use and offered here on the basis that you may find it useful – I am not in a position to provide support for it at this time.  The software works best when installed to C:\PZTLog. Some of my programs have their main EXE file compressed which can cause some enthusiastic virus scanners to complain.

If upgrading from an existing install of PZTLog, you are advised to keep a spare copy of your PZTLog.exe , PZTLog.ini (settings) and Log.mdb (logbook file, or whatever you have called it)

Download PZTLog v1.34 Setup.exe
This is the full-installer for first-time users – Simply run the installer (as Administrator) and enjoy. Existing users can just use the Update Zip (below) and put the latest files into their program folder. You can also run this installer over the top of an existing install without loss of any data/settings.

CAT Control : Requires OmniRig – download from here OmniRig test client
(if you can’t get any CAT functions from PZTLog, try this software to verify CAT connectivity, first)
CW Keyer
: Requires CWType – download from here

PZTLog Simple Mode – Logbook Entry
PZTLog Simple Mode - basic logbook entry

Datamodes Skimmer – 5 additional channels of PSK/RTTY decoding
Supports “click and log” so ideal for simple split operating

Log Viewer Window

Edit QSO Window also shows Band/Mode Statistics