Wednesday 18 March 2009
The Wadley Loop and the Yaesu Musen FRG-7 receiver
The Yaesu FRG7 all band reciever.
When first starting out cruising,we decided to have a radio receiver that would receive all bands,meaning normal world wide programs such as the BBC and VOA,plus marine and amature bands also.Checking what was on offer at our local amature radio shop,Hamrad,we found two sets filling the picture,one was a Barlow Wadley,the other was a Yaesu FRG7 both used what was called the Wadley Loop,which was a circuit designed in Durban,South Africa by a Mr Wadley. Local manufacturers,Barlows took up the design and then made their very popular portable radio and named it the Barlow Wadley,many cruising visitors soon snapped those up,due to outstanding performance and the sets small size.
What is a Wadley loop? its an internal circuit designed to give better frequency stability once the set has been tuned,in our case we chose the larger FRG-7 made by Yaesu,we had the space on the boat and the set had the Wadley Loop,so we scored both ways.The FRG-7 is quite bulky,many will not see it as a portable radio set but it is in fact possible to use it as such,it has a side carry handle and if you open the back upyou will see a space for six torch batteries,you will also need a length of wire to act as an antenna but then your recieving!
Roy
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