Bitx3B Modules Layout And Connections

                       Here is a complete layout of Bitx3B modules

                        Hope it helps all Bitx 3B Builders.

Bitx3B High Resolution Pictures

We are publishing some latest and very clear pictures of high resolution for Bitx3B Exciter-PA-AGC and Audio Mute modules.

Hope it helps the builders with location of part values etc.

Bitx3B Exciter-PA-AGC-Audio Mute

AGC 

Audio Mute

VFO Stage Bitx3B 

Bitx 3B PA

Bitx3B Exciter 

New PCB Bitx3B 3C Exciter And PA

The new printed circuit boards for Bitx3B Bitx3C And PA are ready, these are the boards on which we have done the modifications for RX antenna cut off on transmit mode.

 Good news the kits for Bitx3B and Bitx3C are ready and we shall start selling them from 1 March 2015 on wards. Keep a watch on our website and ebay shop if you would like to purchase the kit.

Published below are a few pictures  of our  new  modified Bitx3B and PA built recently.

 A brief summary of mods done for new boards are as given below.

 1. Bitx3B Exciter,mod done to disconnect of Exciter RX Ant on Transmit.
 2. Bitx3C Exciter, mod done to disconnect of Exciter RX Ant on Transmit.

 New PA Board mod done:

 1. Disconnection of RX Antenna on Transmit at P5.
 2. Selection of 12 or 24 Volts for Final.
 3. Capacitors 0.01 across all four IN4007. 4. IN4007 across both relays.
 4. PC Fan 12 Volts for cooling transistors.

Bitx3B Exciter Silk Screen 

Bitx3B Exciter  Solder Side 

Bitx3B/3C PA Silk Screen 

Bitx3B/3C Solder Side

Bitx3B Built Exciter 

Bitx3B/3C Built PA

stationqrp.com on our blog list

Do you have a blog or website on Ham Radio that you would like us to include on our Blog list, then kindly send us a request with your website or blog URL.

The first request came from stationqrp.com  and we have added this very informative website on our cqbitx blog list.

Kindly also place our blog link on your website once you see your website URL on cqbitx blog.

Thanks and best of 73s

Sunil