Pre-built mcHF transceiver kit V 0.6.3

Pre-built mcHF transceiver kit V 0.6.3

We are pleased to start offering our new service to all USA Hams. This is only a trial run to test interest and we’ll do our very best to meet the demand. At the very beginning we’ll release small batches of 5 mcHF kits to allow for sufficient testing after each build is completed. Shipment will be with USA recorded postal service and is included in the price.

We’ll be working towards introducing this service to all EU countries and I am hoping in near future worldwide.

Thank you all for your continuing support of the project.


mcHF 0.8 developments


I haven’t been posting here much lately, but last month or two i was able to work a bit on the rev 0.8 source codes. There are total of five projects that are needed for the new revision. I will use my spare time to bring everything up to speed. If interested, please check out my GitHub page:

As for availability, it is still challenging to finance mass production of the new kit, so for now we have only built few prototypes for testing and development.

73, Chris

Modded firmware


The supplied image for latest 0.6.x sub-revision will usually give error and long boot delay due to removed MCP9801 chip from the RF board. If that is annoying to you as me, please flash the supplied modded image. I have also included IDA disassembly and i assume is possible to do simple binary search in future revisions and modify.




mcHF 0.8 Center/Fixed mode

I have recently seen that TS-990 video showing of the fixed mode and couldn’t sleep until i coded this. I was lucky, Clint has left something useful in the audio_driver.c file few years ago(yay, open source)

I am sorry for the bad quality, not easy to shoot the glossy screen, plus i only have my phone. But at least the band was open tonight!

RF components kit and UI components kit on V 0.6


Following many requests to split V 0.6 components kit into RF board build kit and UI board build kit
we are now please to offer this configuration. For information on price and shipping please visit our Order page.

I would like to advise that shipping may follow up to 3-4 working days after purchase as we don’t stock large quantity of all components.

Kind regards

New revision V0.8 on it’s way

Hello Everyone

The mcHF project has been running for almost five years now. Thank you all for your continued support. We are constantly trying to make it more fun and implement the many ideas we have as well as take on board comments from users.

Currently we are working on a very exiting revision V 0.8 . Some of you may have seen new image uploaded on our Home page or twitter posts giving a small preview about it. Still to come are many days of active development but once work is complete we hope the wait will have been worth it – upgraded UI board, fully compatible with the Logic, RF board and case. New 5 inch capacitive touch LCD allowing for more user friendly interface.

We also are planning to start operating on pre-order basis, the details of which we are still discussing. This will allow us to be faster on implementing bug fixes as well as updates on hardware and a better chance against competition. We have not been very flexible in doing that due to various reasons. We have tried to cater for as many hams as we can. From the types preferring ‘solder all yourself kits’, to partially factory assembled ones. This has resulted in having to carry an excess stock of components, cases and Lcd’s.

In the start of operating the new way, we would like to offer few left over mcHF V 0.7 kits at a reduced price. Please refer for more details here

We hope we’ll have your support in this matter.

Kindest regards
Chris and Lucy

The ‘Potato’ mod on rev 0.7


Changing 74AC74(U11) with PO74G74A has been suggested for a long time. I can confirm it is safe and easy to do, here in few simple steps:

1. Remove U11, preferably by hot air. Turn the board back and cut the 5V trace in the corner

(click for larger view)

2.  Solder the new chip and put a small wire between the two decoupling caps (hot side, not GND)

(click for larger view)

You are all set!