Tonngue-in-check we are, but reality-tagged... Sextant for location, CW or analog for comms??? My morse is probably nearly as good as semaphore in sea mists...

Scary... Most tubs may have vintage HF equipment. What if digi-wonders fail??? I muse over our blind dependence on the wonders of modern tech... Must needs polish up my sextant? Okay, a bit OTT... Mic

That was my concern, Martin. Even though challenging for VHF diy, further details of the theory and practice would be appreciated. Michael 2E0IHW

A notch rejection filter should help, but would need expertise to design for each given frequency. Michael 2E0IHW ..............................................................

Capito - but if you don't have US$ 300 ??? Michael 2E0IHW

For some of us, a review of the best *low-budget* SDR options would be most welcome. Michael 2E0IHW ... ...

I, too, would recommend trying the cooolsoft (yes: "coool") Michael ...

I would suggest ordering the MLA-30 via EB Ireland. This should avoid customs and mail handling charges (until you-know-what...). Michael ...

Vielleicht... Doch Probieren geht über Studieren bzw. Mutmassen :-) For reproducible and verifiable performance of Maynard's original Ferrite Sleeve Loop idea, check online sources, eg:- https://www.a

Compact butt-glued ferrite rods for extra length and litz-winding for 160m or 80m can work well. Easier to rotate. Not all MW ferrite is optimal for 80m, however. Screened coax - obviously - with balu

For communication, eg SDR, digital excels. For public priorities, the digital logo sells, but does not always deliver. Mobile phone audio quality can be near-indecipherable. DAB quality can be accepta

Some UK rural areas cannot receive local radio on FM or DAB and are dependent on remaining AM transmitters. Many such areas have no mobile phone signal, which some online services are not aware of. Ho

Hi Leif, Over water a horizontally polarised signal can become "twisted" to mixed-polarity or to mainly vertical. This happened with our digital TV signal from across the Bristol Channel from Wales. V

José, desgraciadamente, según la sciencia y nuestra esperiencia indiscutable, su amigo no tiene razón. Verdad: y el investigator de OFCOM reconocía que se trataba de verificadas circunstancias técnica

An interesting thread! Related to the polarisation issue, but slightly OT: Some years ago, with the re-shuffle of DTT muxes, a powerful transmitter across the water was allocated the same frequencies

The honourable decision, JR. Michael UK ...................

Simon exemplifies the best of the internet and is appreciated by all of us (bar one...). Michael, Devon UK

Cela m'intéresserait aussi! Michel 2E0EHW

Many thanks for collating all that, Martin. Much appreciated! Michael 2E0IHW ...

I had something like that in mind - let gravity save the day. Definitely good *non-daft* lateral thinking! Michael 2E0IHW