Patrick Lindecker, author of MULTIPSK, has announced an update to the software with the addition of DMR decoding (not to be confused with DRM, the subject of several recent posts – alphabet soup!!).

Here is a portion of the announcement:

New release of MULTIPSK (4.42)

The new release of MultiPSK (4.42) is on my Web site (
The mirror site is Earl’s, N8KBR:

The main improvement of MULTIPSK 4.42 is the following:
Ham DMR decoding (but not the voice)

“DMR” is the acronym for “Digital Mobile Radio”. The basic specifications of this mode are public (ETSI TS 102 361-1 to 3 for the “Tier II” protocol used by Hams), but any supplier can add supplementary functions. It is used in VHF and in UHF, mainly for voice communication but also for data communication. It is a mode for professionals but also used by amateurs (according to a precise organization). For Hams, it is spread in a world net by using, among other means, repeaters and Internet.

The amateur DMR communications are the sole object of the Multipsk decoding (professional communications are decoded but ignored). The DMR is considered as a “professional” mode by Multipsk (but the Ham decoding is not limited in time).

It is here only considered the data communication which summarizes to identifiers (callsigns+first names) and possible text messages (with some rare positions).


F9XYZ Michel (2088006 – France), via TG 20800 (YSF France) – Slot 1

F0ZZZ Yves (2083004 – France), via TG 20800 (YSF France) – Slot 1

Note: the voice communication decoding is excluded because it needs an AMBE+2 Codec (under a proprietary licence).

For Hams and SWL, the DMR signal can be received:

· either from the discriminator output of a classical VHF/UHF FM receiver via a direct connection to the PC sound card. However, the receiver must have a large reception bandwidth due to the high modulation speed,

· or with a SdR receiver (FunCube Dongle, RTL SDR,…) and directly demodulated by Multipsk. It is the simplest solution.

Here is the WEB address where you can know where all DMR repeaters are located, with their frequencies, for each country:

This mode is in freeware, so without time limitation.

MULTIPSK comes in two versions – a freeware version and a one-time paid version. It’s the same download, but buying a serial number unlocks many additional features. Note however, the DMR function is part of the free program.

While there have been many additional updates to the software from the time I wrote a review of the program, if interested you can access my review (published in The Spectrum Monitor) here:


Cheers! Robert K4PKM

Robert Gulley, K4PKM (formerly AK3Q), is the author of this post and a regular contributor to the SWLing Post.       Robert also blogs at All Things Radio.

Spread the radio love

11 thoughts on “MULTIPSK Update

  1. Mario

    Been using the registered version of MultiPSK for a long time, it’s the best all-in-one software decoder package and well worth the fee. MultiPSK along with a SDR dongle, up-converter and a virtual software make a very neat, compact system for the radio hobbyist. Thanks Patrick!

    Also like FLDigi at times and MMTTY, YAND.

  2. Tom Servo

    Multipsk does SO much, but that interface is ugly as a tree full of owls. I’ve never even considered paying for it because it’s simply too dense and complicated to use.

    1. RonF

      Yeah. It’s practically a given that websites and software developed by old-school hams are going to be fugly messes. Even the stuff developed by newer hams, or people who’ve some to ham radio via a programming/computer background, could benefit from the developers sitting down and reading something like the original Apple HIG documentation.

      I mean, just take a look at that top … what, menubar? … the very first buttons to the top-left, and half the rest of the items on screen. Most could – nay, *should* – be relegated to a Preferences or Configuration pane or screen…

  3. arthur ascii

    It’s a Windows prog….yawn.

    Windows is pretty much a legacy system these days for real hams.

    When we gonna see a Linux version ?

    Doesn’t have to be Foss either.

    1. Thomas

      I love Linux, but in the world of radio, Windows is still the dominant and preferred operating system of developers. I keep a Windows machine specifically for the shack because the majority of SDR applications are Windows-based. Many of my rig controllers are, too. I wish Linux had more options–and options as robust as those available on Windows.

    2. Taubin


      I haven’t heard people bash Windows like that since Windows XP came out. Add in the extra bashing of people who aren’t “real hams”. People seem to forget this is a HOBBY. Let me guess you think modes like FT8 are ruining the hobby as well?

      REAL hams don’t bash others for their choice of software or running mods.


Leave a Reply

Your email address will not be published.

This site uses Akismet to reduce spam. Learn how your comment data is processed.