Another hint: There are many HF bands. A 10m band dipole is only 5m long. Not sure why this is RSGB’s responsibility to work out. Report comment. Reply. Rog77 says: February 4, 2024 at 4:14 pm ...

Which is fine for amateur HF work, since the 10 meter band is the only one wider than 1 MHz, but it’s a royal pain for just scanning shortwave bands, since you have to spin the VFO dial all the ...

For newcomers wanting to know more about what is ham radio, our outdoor expert's guide will tell you everything you need for this neat hobby. Join the 1871 Club Now : Members-only Hats, 2x F&S ...

Weather resistant, lightweight and compact, the VX1210 HF Band transceiver is designed for high performance two-way radio coverage between 1.6 and 30 MHz and continuous receiver ...

HF radio communication generally are limited to narrower bandwidths and lower data rates than satellite communications. To ensure critical communications are maintained, we are investigating the ...

For a given ham band its lower and upper band edge frequencies are converted by the famous 468/f to dipole lengths. QST, ... lengths for end-fed impedance matching. For multiple bands, harmonics are ...

High frequency (HF) radio is attractive for its long range, but it’s not as easy to use as other wireless bands. The channel can be noisy, and finding a usable frequency can be challenging. In ...

LONDON — U.K. communications regulator Ofcom is set to license operators to use the 71-76GHz and 81-86GHz bands for broadband fixed wireless access. These bands are currently not used for commercial ...

Q 1 to Q 4 and Q 5 to Q 8 function as balanced mixers. They provide a high dynamic range for the circuit, which is part of a direct-conversion receiver. IC 1 provides two, quadrature LO signals, and ...