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Thursday, July 21, 2016
Thursday, July 14, 2016
All About Bitx Version 3 Series.
Lately I have been asked about our Bitx 3 series transceivers if they
are for single band or multi band and what difference our
Bitx Kits have between our various versions.
Here is a question
I received recently from one of our Radio Amateur member by email.
Hello.
I am looking for
the latest model of the Bitx that can work digital modes.
I must admit, I an
unable to understand what are the Bitx's versions: Is it a single band QRP TRC,
or is it multiplicand TRC with LIN Amp, and what is the latest model.
73
Mike
4X1LM
Our Answer to the
questions:
The Bitx version 3
series transceivers we are selling are all mono banders i.e. single band ssb qrp
tcvr.
The First Bitx kit we started was "Bitx Version 3" ;From the original design of OM Ashar Farhan, Bitx20, further with minor modifications,which were done by Om Rahul Srivatava VU3WJM.
Later we came out
with some new versions Bitx3B Bitx3C with mods done by us.
1. Bitx3B this
version has some changes like the VFO is now controlled and integrated with the
famous IK3OIL FLL. So the VFO is now with varactor control tuning, using
1sv149 varactor diode, which can cover 350KHZ. The mic amp has an extra pre
amplifier added.
Some minor changes
were done in PA switching TX RX; overall it has been improved upon the older
Bitx Ver 3. The Ver 3B also uses the Diode Ring Mixers and Toroids, in the product
detector and mixer.
2. We have Bitx
version 3C, which are in two versions.
a. Bitx3C using
ADE-1 Mixers.
b. Bitx3C using
SBL-1 Mixers.
Other features are
same as Bitx3B.
3. AGC and Audio
Mute stages have been added in Bitx3b Bitx3c
For digital modes you can use the Bitx3C SBL-1 or Bitx3C with ADE-1 mixers.
Hope I have been
able to clear your doubts.
Saturday, July 2, 2016
Error In CD files sent with Bitx3B kit
Lately we had started offering CD instead of printed documents for Bitx series constructional manuals.
Some how the CD sent had docs with some missing pictures in the file bitx3b construction manual, we
regret that, we are trying to offer the printed documents again so that the mistake does not occur again.
Most of the Bitx3B files can be found on the Bitx Yahoo Forum too.
This link below is okay and the documents seem to be good.
https://app.box.com/s/6g5rj15kgpft1mqxkg7h
Very soon we would work on making all files online with fully correct manuals.
best of 73s
Some how the CD sent had docs with some missing pictures in the file bitx3b construction manual, we
regret that, we are trying to offer the printed documents again so that the mistake does not occur again.
Most of the Bitx3B files can be found on the Bitx Yahoo Forum too.
This link below is okay and the documents seem to be good.
https://app.box.com/s/6g5rj15kgpft1mqxkg7h
Very soon we would work on making all files online with fully correct manuals.
best of 73s
Wednesday, May 4, 2016
Monday, March 28, 2016
New Kit: JBOT HF Linear Amplifer
After a gap of long time I have been able to bring out a new kit, from our most popular author Ashar Farhan's collection. Yes its the JBOT kit.
The JBOT has been tested on our designed PCB and works extremely well.
We have used 2N2218, earlier we used 2N2219 which had an higher gain and was giving some problem, but we have found 2N2218 more suitable and also as suggested in JBOT article.
We got a pack of 500 transistors 2N22I8 and so we are glad that we can offer transistor that have been tested and do not oscillate.
We changed just 2 resistors value as per the need of the gain of the transistor, and the complete kit was build as per the article.
Kindly find pictures attached below:
This kit can be purchased from our ebay store.
Buy JBOT kit from our store
Only Available in Kit form.
The JBOT has been tested on our designed PCB and works extremely well.
We have used 2N2218, earlier we used 2N2219 which had an higher gain and was giving some problem, but we have found 2N2218 more suitable and also as suggested in JBOT article.
We got a pack of 500 transistors 2N22I8 and so we are glad that we can offer transistor that have been tested and do not oscillate.
We changed just 2 resistors value as per the need of the gain of the transistor, and the complete kit was build as per the article.
Kindly find pictures attached below:
JBOT HF Linear Amplifier |
JBOT HF Linear Amplifier kit |
Printed Circuit Board JBOT Front |
Printed Circuit Board JBOT Rear |
Buy JBOT kit from our store
Only Available in Kit form.
Friday, January 29, 2016
Upgrade of website AmateurRadioKits.In
Recently we moved our website to a new server, this had to be done for providing our friends a
better view of our products and all the documents for our kits,which are to be published on our web
pages for a live preview and download. If you wish to purchase our Bitx or other kits, then kindly do so
from our ebay store Fusion Radio VU3SUA
We are working to make this website more pleasant.
We shall be opening the complete website very soon.
Have a great day…..
Friday, January 15, 2016
New Pictures from OM Arek SO5HMI Bitx3C
The earlier pictures of Bitx3C sent by OM Arek from Poland were without the complete wiring etc, so I had requested Arek to send me some of his Bitx3C pictures with complete built up set.
So now we have received some nice complete built up pictures of Bitx3C ADE-1 from OM Arek SO5HMI .
Enjoy them. The construction is excellent so as the working set Arek.....Many Many DX with your Bitx3C ADE-1
BITX3C 20 MT |
BITX3C WITH ADE-1 |
BITX3C Arek SO5HM |
BITX3C FROM POLAND |
Saturday, January 9, 2016
Bitx3C From Poland
Recently there has been lot of Bitx building activity from Europe ,radio amateurs from Russia, Poland ,France And Germany are building the Bitx3B and Bitx3C.
We have received some nice build pictures of Bitx3C ADE-1 from OM Arek SO5HMI from
Poland. Congratulation to Arek for completing his Bitx3C and also helping his friends build the Bitx.
Here are some pics as below sent by Arek for Bitx3C ssb tcvr with ADE-1 mixers
We have received some nice build pictures of Bitx3C ADE-1 from OM Arek SO5HMI from
Poland. Congratulation to Arek for completing his Bitx3C and also helping his friends build the Bitx.
Here are some pics as below sent by Arek for Bitx3C ssb tcvr with ADE-1 mixers
BITX3C By Arek SO5HMI |
BITX3C WITH ADE-1 |
BITX3C VIEW Arek has also uploaded a Video YOU TUBE for his Bitx Keep watching have fun, we shall bring in more news about some new developments with our new Bitx kits. |
Saturday, November 28, 2015
Bitx Case In New Colour And Models
We are trying to bring some new colours and models for Bitx Case .
One of the new colour is Black And Silver , this is available in two models, the first one is
the Bitx case with additional provision of Menu switches. So now the FLL counter swithes can be mounted on the Front panel of case.
The second model has the facility of mounting DDS function switches on the Front panel. The Encoder is fitting on the Tune control.
We shall be also offering a DDS very soon, that will fit on this Bitx DDS Case.
One of the new colour is Black And Silver , this is available in two models, the first one is
the Bitx case with additional provision of Menu switches. So now the FLL counter swithes can be mounted on the Front panel of case.
The second model has the facility of mounting DDS function switches on the Front panel. The Encoder is fitting on the Tune control.
We shall be also offering a DDS very soon, that will fit on this Bitx DDS Case.
Bitx 3B/3C Black And Silver Case With Menu Switches For FLL |
Bitx 3b/3C Black And Silver Case With Switches For DDS Functions. |
Monday, September 7, 2015
Bitx Version 3C SBL-1 With DDS
As promised earlier I am publishing some pictures of the Bitx3C SBL-1 with a DDS for 20mt band.
The set is working absolutely fine with good receive and transmit of 7 watts.
This present set is mono band, but the idea was to use a DDS and also provide DDS with the Bitx 3 kits.
The set is working absolutely fine with good receive and transmit of 7 watts.
This present set is mono band, but the idea was to use a DDS and also provide DDS with the Bitx 3 kits.
Bitx Version 3C SBL DDS |
Top View |
PA Bitx |
DDS And AGG |
Bitx3C SBL-1 Exciter |
Very soon video of Bitx3C SBL-1 with DDS will be put up on this site and You Tube.
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