Well,
Following my changes to the 3cm and 13cm setup to become more portable, I decided it was only fitting to re-make the 23cm setup I made back here. I'll reuse the PA and the transverter.
The first stage in this project will be to create a new sequencer, much like the 13cm version, so we can switch the transverter, a VLNA and a co-ax relay.
Here's the design:
![]()
and in reality, this looks like this once built on stripboard:
![]()
I've already got a G4DDK VLNA for 23cm assembled here, and coax relays aplenty. John, G4BAO is just tweeking my 23cm 60W PA and once I have all the bits, we can mount them in another waterproof enclosure the same as the 3cm and 13cm setups.
As part of the sequencer design, I finalised my latching relay driver circuit and have finished up with this, included in the sequencer diagram above:
![]()
Here's a crazy cat of mine en route to a portable operation:
![]()
#GHZbands
Following my changes to the 3cm and 13cm setup to become more portable, I decided it was only fitting to re-make the 23cm setup I made back here. I'll reuse the PA and the transverter.
The first stage in this project will be to create a new sequencer, much like the 13cm version, so we can switch the transverter, a VLNA and a co-ax relay.
Here's the design:
and in reality, this looks like this once built on stripboard:
I've already got a G4DDK VLNA for 23cm assembled here, and coax relays aplenty. John, G4BAO is just tweeking my 23cm 60W PA and once I have all the bits, we can mount them in another waterproof enclosure the same as the 3cm and 13cm setups.
As part of the sequencer design, I finalised my latching relay driver circuit and have finished up with this, included in the sequencer diagram above:
Here's a crazy cat of mine en route to a portable operation:
