New answers tagged


The ladder line looks like a cable, as several people pointed out already. As for the Yagi, it does look like a TV antenna, but there's a simple way to tell if it's currently used for ham radio or not: Does it move? A TV antenna is stationary. It points towards in a particular direction towards a particular transmitter. A ham radio VHF antenna is typically ...


The pictures look a lot like post-socialist country big city residental area. It may as well not be, YMMV. The Yagi looks like an abandoned old analog TV antenna. Most ham installations use vertical polarization in UHF and this one looks pretty much horizontal. The cable between the buildings is not an antenna at any rate. This is a communincations cabe of ...


The cable strung between the two buildings has two parts, a strong wire probably made of stainless steel or similar, then you can see some form of cable, as Tommexus said it's probably fibre or telephone cable, or maybe coax, hanging from the wire with lots of evenly spaced cable supports. The steel wire is used to provide a strong support between the ...


It looks like a fibre or telephone cable strung between buildings. It sets a good precedent for setting up your antenna though - if you can get access to the other rooftop at night, and a catapault or fishing rod. Make it fairly official-looking, with some large bolts and a labels with bar codes and lots of numbers.


Nothing. A G2 storm is a common event; according to NOAA data it happens an average of 600 times per 11-year sunspot cycle. It won't hurt your radio, but it might make HF communication a little more difficult. In fact, no category of storm is expected to hurt your radio in particular, although G4 and G5 storms can cause major radio blackouts, not to mention ...


One of the comments for this question includes a link to a paper on blast-resistant ground level HF antenna's that the U.S. Airforce used or uses. So zero. Or negative if you count the buried cavity.

Top 50 recent answers are included