LINKPlanner v5.6.9 Now Available

A new release of the LINKPlanner is available from the download site.

The key features of 5.6.9 are:


  • ePMP 11ax updates:

    • Added support for ePMP 4500L, ePMP Force 4525, ePMP Force 4525L products to the PTP side.
    • Added support for ePMP 4600L, ePMP Force 4625, ePMP Force 4600C products to the PTP side.
      Please note that in this release these products are only supported on the PTP side of LINKPlanner with the ePTP mode and cannot be combined on a link with either 11n or 11ac products.
      To use the 4600 family of radios choose the Lower and Upper 6 GHz frequency bands
      To use the 4500 family of radios choose the 5.1 to 5.8 GHz frequency bands
      On ePMP 4600L/ePMP Force 4600C there is also a Range Extender option for the 2x2 antenna
  • Extended support for ePMP Force 400C and ePMP Force 425 products in 5.9 GHz and L6 band.

  • Added Connectorized antenna options to FCC/IC bands in PMP AP mode.

Now in FCC/IC regions, external antennas can be selected for connectorized ePMP AP modules, but carry the warning to show which ones have not been included during Cambium FCC Type Approval testing.


• Added support for EX3000 switches to BOM Estimator.

The EX3000 family of Enterprise switches are now included in the BOM Estimator section of LINKPlanner. To add these to your estimates, select Switch Estimates and then New Enterprise Switch Configuration

This will give the following Enterprise Switch window where you can configure the relevant parameters using the menu options shown below:

60 GHz cnWave

  • Added Accuracy parameter to the cnMaestro compatible Node file export.

There is a site parameter called “accuracy” which is used to determine whether or not to use the onboard GPS reading to overwrite the entered lat-long coordinates. The default value for accuracy in the radio is 10000, which means that the onboard GPS will always override any entered coordinates.
This Accuracy parameter is now included in the 60 GHz cnMaestro Node export file. The user can then control the value of accuracy parameter while exporting from LINKPlanner.

To add the Accuracy custom field, go to Project and then click on Create fields for 60 GHz cnWave export to cnMaestro option.


This creates the Accuracy parameter with a default value of 10, along with the other existing fields. This means that unless the GPS is reporting an accuracy of better than 10m, the latitude and longitude from the LINKPlanner file will not be overwritten.

To edit the value for individual sites either edit the value on the site in the top details panel or in the Access Point or PMP Links Tables, where multiple rows can be selected and edited together.



To edit the default value of the Accuracy parameter for any future additions, go to the Custom Fields option and select the Accuracy parameter, then choose Edit Field.


• Added sector azimuth lines to the 60 GHz cnWave DNs in the map views and Google Earth exports.

This can be useful when using known geographical features for aligning the radio in the field.

LINKPlanner Map View:

Google Earth Export:

Under the Access Points folder the azimuth line is called “Sight Line”. In the map view double click on the Sight Line to get a camera view along the line with 5 degree tilt.


cnWave 5G Fixed

  • Included Mu-MIMO throughput values in the AP Performance Summary.
  • Added Mu-MIMO information to the Installation and Proposal reports.

The Instantaneous Dry Mu-MIMO throughput values are now always shown in the AP Performance Summary below the existing SISO results. To get more Mu-MIMO information click on Mu-MIMO Report button.

This Mu-MIMO information is also now included in the Installation and Proposal reports under the Access Point Summary section.


PTP 670/700

  • Retired 4.9 to 5.9 GHz, Dual-Pol 90 Degree Sector Antenna with N-type connectors, included ePMP variant of the same antenna with RP-SMA connectors, which can be used as a replacement.

Please remember if using the ePMP variant that you will either need an RF cable with N-Type connectors at one end and RP-SMA at the other or an adaptor to convert between N-Type and RP-SMA.

PTP 820/850

  • Updated v5 Pathloss radio files to use PL50_ASCII_RADIO_SPEC_04 format.

Updating to the new SPEC_04 format does not change the content of the files, but other changes in this release do affect some of the parameters, for example the maximum receive level, as described in the Bug Fixes section. To differentiate the formats the new PathLoss files are designated V3.

  • Generated adaptive modulation Pathloss radio files.

The adaptive files are included in the same folder as the fixed files and identified with an “A” in the Profile number part of the filename.


  • Added capabilities to set the size of the APs in the offline map view.

Slide the Fixed AP size option to resize the APs in the offline map view. When the Fixed AP size is set to 100% then the SM Range is used to scale the AP, when the Fixed AP size is lowered, the AP radius will be reduced and set at a fixed radius for all APs.

Fixed AP size is set to 100%:

Fixed AP size is reduced:

Bug Fixes

  • PTP 850C – Restricted Radio with Pre-Loaded Software Licenses only to North America.
  • PTP 820/850 – Increased Maximum receive level threshold.
  • Corrected PTP 670/700 Mounting Brackets parts in the BOM.
  • cnWave 5G – Corrected Mu-MIMO grouping limit when bandwidth is greater than or equal to 100 MHz

When the bandwidth is greater than or equal to 100MHz the Mu-MIMO group size is limited to 6.

  • Corrected issue of 60 GHz cnWave products not respecting conducted power limits on AP when user limits selected.
  • Adding correct BIAB parts to the BOM, when “Power from switch” option selected for 60 GHz cnWave V1000/V2000 products.
  • Corrected default interference levels for 60 GHz cnWave on sector 2.
  • Fixed bug in 60GHz cnWave, which errored when sites in the sector warnings are using Unicode names
  • Prevented the “Highlight AP” feature in the offline map from hanging when the map contains DNs with mesh links attached.
  • Added “Power from switch” option for 3 GHz PMP 450m, to power the LPU.


I’ve got issues with LINKPlanner crashing when trying to trying to create a new project. This is when using the latest version of macOS (Sonoma 14.0).

I can open LINKPlanner fine, but it crashes when trying to create the project. This has been re-created on a co-workers laptop as well on v5.6.5 and v5.6.9 using the same macOS version.

I have tried uninstalling the software, rebooting, and installing again with no change.

It is a M1 Macbook Pro. This has not been an issue until the latest version.

Hi Daniel,

A couple of other users have reported issues with Sonoma as well. I’m not sure if it is a bug in Sonoma, which Apple will fix in a future update, or if they have deliberately broken backwards compatibility.

We won’t be making any more Mac specific updates to LINKPlanner. If it no longer runs on Mac OS then you can downgrade your OS, use the Windows version of LINKPlanner or use the online version of LINKPlanner.

Does anyone else have LINKPlanner running on Sonoma? If it doesn’t work for anyone then we won’t release a Mac build for the next version of LINKPlanner.



Mine also keeps crashing on Sonoma

OK - thanks for the update. Chances are this is the last Mac release then. I’ll add a note to the download page to warn other users.

Cambium has been in our Wisp since Motorola days, is the company in financial trouble? that you can’t invest in an M1 version?

I think it’s a combination of so few Mac users that it doesn’t make sense to continue supporting it AND that they’re migrating everything to LP online… so eventually… possibly soon… the LP app will disappear.

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Eric is correct. We don’t have enough Mac users to justify the effort required to move to the M1 chips. It would require a complete rebuild of LINKPlanner and the underlying product executables that we use to calculate the performance for some configurations.

Apple don’t make it easy to create cross-platform/non-app store applications and they have a terrible record when it comes to maintaining backwards compatibility. It’s a continually moving target and it makes more sense to put our efforts into an online version of LINKPlanner that can then be used by people on Mac, Windows and Linux.

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