[Lowfer] Subharmonics of 1610 kHz

[John Rabson]

You can have a subharmonic, Kurt - if your exciter has a problem.  When setting up the 998 kHz TX for University Radio Essex in the UK, I inadvertently put the exciter into diode pump mode and it produced 499 kHz.  Fortunately the local coast station (GNF) did not notice.

About the same time (1972), I investigated what sounded like inverted Morse interfering with a BBC transmission on 647 kHz.  This turned out to be from CLN (an NDB at Clacton, nearby in space and frequency).  

CLN had a MOPA TX, the link between the MO and the PA became faulty and the PA became a SEO, resulting in inverted Morse ID. 

John F5VLF/G3PAI