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It's EASY to order and get going with your SDR Cube Transceiver!

Software Update & Calibration Service ... is available at no charge. See item below for details.


2 Ways to Order ...

Fully Assembled & Tested                        OR                               as a Quick KitTM                   


Fully Assembled & Tested SDR Cube Transceiver:
Includes Softrock RF deck, with Multi-Rx module and one TXPA module*.

(*Specify a TXPA module for 80m/40m or 30m/20m/17m or 15m/12m/10m.  Additional transmit modules available for purchase below.)

Tx Band Module (select one):

  $349 ...


 Set of 7 pre-assembled & tested PCBs that YOU put together: 
DSP, Controls, I/O board, Softrock Base, one TXPA*, Multi-Rx, X-LPF, Internal Cables, and Enclosure.

(*Specify a TXPA module for 80m/40m or 30m/20m/17m or 15m/12m/10m.  Additional transmit modules available for purchase below.)

Tx Band Module (select one):
$249 ...

*** NOTE:  Despite the Cube Quick KitTM  being a mostly-mechanical experience, some builders still have assembly difficulty and resort to sending their efforts back to the Midnight shop expecting a simple completion/correction of their kit building effort. For this reason ... any Quick Kits returned for initial "repair" will be charged a flat rate of $100 plus a return mailing fee. To avoid this inconvenience, if you think you may have trouble with the kit construction please consider ordering the fully assembled & tested SDR Cube Transceiver. -- n2apb


NUE-PSK MODEM Interface Cable

Cable connects the SDR Cube Transceiver to the NUE-PSK Digital Modem.  Allows seamless use of the NUE-PSK to provide digital mode support for PSK31, RTTY and CW (decoder).


$10 ...

AUDIO Interface Cable

Custom-made cable connects the SDR Cube Transceiver's audio in/out to computer soundcard or external soundcard device (SignaLink, SoundBlaster, etc)

Be sure to specify the COMPUTER or SOUND CARD type that you have, so we can make the right cable for you!

Soundcard type:
$20 ...

MICROPHONE Interface Cable

Custom-made cable adapts any modern microphone for use with the SDR Cube Transceiver.

Be sure to specify the MICROPHONE MODEL that you have, so we can make the right cable for you!

Microphone make & model:
$20 ...

COMPUTER Interface Cable

Custom-made cable connects the SDR Cube Transceiver to a computer USB port ... for loading new Cube software, viewing Cube user settings and diagnostics, and more.  FTDI software driver required for the computer. 

$20 ...

Software Update & Calibration Service



Just pay for the return shipping.  Send us your Cube (see Midnight Design address below), and well be happy to:

1)  Load the latest software;

2)  Run your Cube through the calibration process here on the bench: frequency, opposite sideband rejection (for Rx) and suppression (for Tx), and S-meter;

3)  If your Cube has the Softrock option, well set it for optimum drive levels and give you a spectral plot of its RF performance;

4)  A handy, formatted report is provided showing all settings and performance results.


$21 (for return shipping & handling)

[Note: This is not a repair service.  If your Cube isn't working and is not obviously fixable, Ill let you know.]

TXPA Plug-in Board

Transmit module that plugs into the SRBase Board of the Cube's RF deck. Contains the band-specific PA components to deliver 1-3 watts (typ), depending on the band ordered: 80/40, 30/20/17, or 15/12/10 meters. (Specify below.)


Select Band:
Modular Enclosure

Clamshell cover and bottom plate, sized and black anodized to match the SDR Cube. You add the 4"x4" front and rear panels to suit your custom accessory ideas. Use pcb material or aluminum and screw to holes on the front/rear lip of the bottom plate. This approach also serves as the basis for future Cube accessories - e.g., speakers, tuner, amp, etc. Get a head start on your own right now! 

$20 ...

(Pay for items selected from above)

Ordering by Postal Mail ...

Print out this order page and mark the the desired items.  Total the prices, add shipping(*), and write check or Money order payable to "Midnight Design Solutions, LLC" and mail to Midnight Design Solutions, 205 Okema Trace, Loudon, TN 37774.   

* Shipping fees: 


Fine Print
Prices, availability and product specifications are subject to change at any time.
Customers accept all responsibilities for following safe and approved assembly practices and product usage.
Orders are typically shipped within 1-2 weeks due to order preparation.
All orders are acknowledged by email, usually within 24 hours.  If acknowledgement is not received, please contact me directly.

Page last updated:  Nov 11, 2023