AGC Bitx

In our earlier pictures for the AGC module, there was a connector placed in a wrong direction and also the trimmers were placed in the opposite direction.

We are publishing the correct placement again for the mentioned items.
Some care is to be taken in  handing the VU meter as it is quite fragile. Instead of soldering the pins of VU Meter to the AGC pcb it would be better to solder short piece of wire pair and connect to the AGC pcb.

The audio mute pcb is overlapping the PA pcb this happened as the PA pcb was modified for the diode RXcut off switch, suitable spacers can be provided to raise the hight of the audio mute pcb while fixing on the case.

DDS FOR BITX VER 3 SERIES TCVR'S

Test have been done with our DDS to be used with all our Bitx ssb tcvr's .
A 20mt Bitx3C- with SBL-1 mixer using DDS is complete and in the next week we shall pubish some
pictures of the completed set.

Pictures of the DDS we will be using in our kits. The mono band tcvr can use either FLL freq counter
or the DDS.

DDS  FOR BITX VER3 SERIES 

FRONT PANEL BITX VER 3 SERIES CASE WITH DDS

Bitx3C with DDS And 40mt Bitx3C.SBL-1

Its been quite some time since  i posted any info regarding any new development for our Bitx 3 series
transceivers.

The latest info that i wish to share is that a DDS is ready that can be used with all our Bitx versions, presently for mono band use and very soon for multi band use too.

I have been testing the DDS with Bitx3c SBL for 20mt band , and very soon it shall be boxed up. The DDS kit we have connects directly to PIN 8 of  SBL Mixer while PIN 7 is grounded, no mod is required at all. The FLL can be replaced with the DDS if one wishes so.

Bitx 40 mt series with all versions B And C will be offered as kits very soon.
The 40 mt Bitx 3C SBL-1  has been tested and it gives an output of 7 watts with 24 Volts power supply.
Some minor work remains of connecting the AGC module and Audio Mute module and Boxing it up.
Very soon I shall upload some pictures and video of Bitx 3C SBL 40mt band  and also the Bitx3C SBL-1  with DDS for 20mt band.

Catch up with you guys soon.

best of 73s

Sunil VU3SUA

Power line Cable Connections Bitx3B 3C

If you could not find comprehensive information on the cable assembly of Bitx3B/3C then you can now get
detailed information now.

We start of with the power connector assembly which is connected between the PA Board and the
Exciter.

The Power Connector is made up of  2 Nos of 4 PIN relimate connectors joined together,
The other modules like the Freq Counter / Audio Mute / AGC and a new option CW adapter can all be connected to the power assembly cable +12 Volts always on line.  The brown wire is the 12 volts always on line.

Black Wire =  Ground

Brown Wire = =12 V Always On

Orange Wire =  RX line

Red Wire = TX Line