ATS3B now with added 60m (5MHz)

Old Reflector
1

For those SOTA fans who have one of Steve Weber’s ATS3B QRP 6 band CW
transceivers, you might be interested in the updated firmware that I’ve
just uploaded to the Yahoo Group for the radio.

Version 3.3 has all of the known bugs fixed.

Support is also included for the 60m (5MHz) band.
This makes the rig a 7 band rig.

Band module details for the new band are:

RF1 33k 0508 SMT Resistor
LF1 T30-2 red toroid with 20 turns
LF2 T30-2 red toroid with 22 turns
LF3 T37-2 red toroid with 54 turns and 5 turn link winding
LF4 15uH moulded inductor
C1F 470pF
C2F 1000pF
C3F 100pF
C4F 470pF
C5F 33pF
C6F 4.7pF
CT2 60pF Trimmer
CT3 60pF Trimmer

If you don’t want to sacrifice an existing band module then I believe
Steve might have some spare band module pcbs. I also have a few since I
cloned the pcb layout and got some made.

Starting soon, I will be working on a 60m modification for the MTR based
on earlier work done by Dave, VK2DDJ and Peter, G4ISJ

Colin G8TMV

2

In reply to G8TMV:

Nice work Colin. Will the MTR work encompass the V2 unit too or just the V1?

73 Richard G3CWI

3

In reply to G3CWI:

Nice work Colin.

Thanks :slight_smile:

Will the MTR work encompass the V2 unit too or just the V1?

Initially it will be for the V1 (both first and second run) since they use the same software.

I don’t have a V2 (triband) one myself, but I understand the software is very similar so I’m willing to help anyone who wants to try it.

Colin G8TMV