Just adding 10-20 feet of wire to the antenna connection will help. The ideal antenna is a wire as high and long as possible.
Norm
:I have a Blaupunkt Radio purchased in 1956.
:Typ 21053 Am Fm Short Wave
:E 108306.
:I need to get an antenna for it, can you help me?
:It plays beautifully, but I need a stronger antenna.
:Thank you for your reply.