Build your own LF / HF / VHF Transceiver.
Latest News
*** 27 Jan 2025 ***
- Updates.
- *** Work me on 40 and 20m *** I’m on NZ time in the evenings***
- a) The TX issues are sorted! On-air testing has been happening over the last few days and a number of calls made and the audio reports very favourable. b) A completely different Balanced Modulator and Product Detector are now used (MC1496), and a different mic compressor.c) I am just doing some small improvements to the AGC. d) A new version of the PA has been produced and tested, and is working better than expected. It uses the RD01, RD16, RD100 lineup. It delivers 150W on 20m on the bench. Other bands being tested now.
- A new version of the Radio Board will go to production later this week, with all the latest mods. It will be available in February.
- The concept for the HamPiRadio is currently being rethought. The complete design will soon be Open-Sourced and available on this website. The designs will then be downloadable and available for private use by constructors and designers and groups alike on a non profit basis.
- Most parts will be sold from here, or constructors can buy them themselves. This will include PCBs with most parts smd fitted. Limited kits for the through-hole parts, ferrite and specially designed 10mm TOKO type transformers.
- The project has been working well for ages I have had quite a few QSOs already. See QRZ.com ZL3AX. More soon…
Welcome:
The HamPi16 is a 16 band LF/HF/VHF Amateur Radio project for the home constructor. In initial project will receive and transmit (CW & SSB) works on all HF bands (160m to 10m 100W) plus the 50MHz and 70MHz bands (6m & 4M Lower power). On receive it also works on the two LF bands 160 & 475 kHz and VHF 144MHz. In the future the LF and VHF RF Amplifiers and switching can be developed in a separate housing(s). The emphasis on the initial project has been quality basics of the receiver and transmitter. This is a project you are encouraged to get involved with for ongoing developments and improvement.
The concept demanded that this transceiver be easy to use, with the important functions right there on the front panel. When working that sought after and rare DX it is frustrating to have to wade through menus to find the right filter, or RIT, or notch filter, or adjust the gain of the various receiver stages to reduce QRM. The HamPiRadio has adopted the controls really needed instantly in the form of a real knob, or a single press keypad button. The photos here will say more than words… There are also some other handy features to be seen on the Features page.
Below are two short videos of comparisons on-air (These were done a while ago before LCD display was replaced with a TFT display). The first video is comparing an Issue 1.0 HamPiRadio with a Yaesu FT902DM which is well known for its great receiver. The second is of HamPiRadio and the ICOM IC-7300. As you can see the HamPiRadio outperforms the FT_902DM, and is ever bit as good as the IC-7300, and may even have the edge. For more comprehensive technical comparisons see the Test Results page.
