sBITX update?

Some months ago I blogged that the Indian designer was working on an SDR version of the uBITX. Since then I have heard nothing further and was wondering if there is an more news? 

The uBITX is an interesting design and an SDR version could well be lower cost than the uBITX which is only $209 for the complete kit. 

As there is hardly any wiring to do, this is probably one of the lowest cost and easiest ways to access the HF bands. Using an Si5351 synthesiser means it will be very stable on all HF bands. An SDR approach might be even better.

sBITX?

Steve G1KQH sent me an email yesterday in which he mentioned that the inventor of the uBITX, Ashar Farhan VU2ESE, is working on an SDR version. I have no details of when this will be available, but can imagine it being low cost and very interesting.

The original uBITX is available from India, with most of the hardware built (he uses a woman's co-operative to build and test the main assembly).  It is a very inexpensive way to get on the HF bands.

See https://www.hfsignals.com/index.php/ubitx-v6/
See https:ex//qrparci.org/fdim

uBITX V6

In recent ẃeeks there was a review in RSGB RadCom of the Indian designed uBITX QRP transceiver kit. 

To those unfamiliar with this, the main PCB is supplied assembled and tested. This is assembled by a women's co-operative in India. The kit consists of putting the assembled PCB in the case and the various wiring harnesses that connect the things up. It was designed by Ashhar Farhan VU2ESE and is a model of a simple but effective design. It is available for $200. I am unsure what happens about VAT and duty.

See https://www.hfsignals.com/index.php/ubitx-v6/

The uBITX

This design from India appears to be gaining in popularity. Today, I was made aware (by Steve G1KQH) of a mod to increase the power output on higher bands. Several people are selling suitable enclosures.

Kits come from India with built and tested boards. As I understand things, it is very easy to build and test this multi-HF band rig. It looks a very low cost way of getting on HF.

See http://www.hfsignals.com/index.php/ubitx/

QRP HF

At one time the Yaesu FT817 led the way.

These days there are lots of good QRP rigs available such as the KX2 and KX3 and the uBITX kits, as well as many others. The FT818 really looks pathetic by comparison.

See https://sites.google.com/site/g3xbmqrp3/hf/ft817 . This page is mainly about the FT817, but it also looks at the FT818.

See also http://www.hfsignals.com/ .

uBitx kit

A useful resource for the uBitx kit is http://miscdotgeek.com/

uBitX 10-80m HF rig

This came in from Steve G1KQH:

Recent interview with Ashhar Farhan:
https://www.youtube.com/watch?v=T9al-RiitWQ

Scroll video forward to around 54 mins to start.

uBitx HF-10-80 plus Gen coverage RX in production within the next couple of months, to be not much more expensive than Bitx40!!

(If you want to cut out some of the waffle and get down to it. Scroll video fwd to around 1:12 to watch the uBitx stuff) Link here:

https://youtu.be/T9al-RiitWQ?t=4343

Performance of FT-817???

Very interesting well worthy of watching with a glass of beer..

New HF low cost radio design

My thanks again to Steve G1KQH for finding this:

Ashhar Farhan the designer of the BITX has now come up with the ubitx Multiband HF

http://www.phonestack.com/farhan/ubitx/ubitx.html

See the Bitx20 group for more details here:

https://groups.io/g/BITX20

There is a video here: 

https://www.youtube.com/watch?v=j-yLof4sTtE