New transmiter being built!

After are first return broadcast for 2023, we weren't happy with the 1st transmitter and have set out building a new one. So if your wondering why you haven't heard us since, now you know why! 

Why a Corsair, its a old design? 

Ok it's a old design but simple, cheap to make and just works. There isn't really anything that can run from 12v battery and give around 10watts output carrier. You could buy a built transmitter but thats going to cost few hundred bucks! The Corsair can be made for less than 50 bucks including hardware.

We found these notes by Intruder (dated 2021) and as he says follow the circuit notes and it works!

 

Here's the completed rig!

eQSL Cards to collect

 Here is a selection of eQSL to collect.

 

Return to the airwaves for 2023

Today was our first test transmisson of 2023.

Our transmitter is a homemade version of the Corsair running 10watts carrier and we decided to carry out the broadcast from a remote location in the woods as we wanted to get a half size dipole erected. 

The halfwave dipole was placed in an inverted V style at 8 metres above ground.

 

The 12v battery wasn't ideal as it was only 2.3Ah lead acid but that's all we had to hand last minute but this last for an 1 hour and half so was able to provide a good site test. After the test transmission we received 5 different reception reports!

Dave in North West Ireland - S7

Klaus from SW-Germany - Weak 

Patrick QTH: Sheffield - SINPO code rating of 24222 

Kostiantyn in Ukraine but using Online SDR in Ireland - SINPO: 45444

Shortwave DX blog - SINPO 23432

New battery on order and maybe some improvements to the antenna.