A simple vhf active antenna using a single BFG65 transistor ... With R3 = 560 Ω, the current consumption is 20 mA. The fm dipole antenna gain is around 12 dB, with a noise factor of 1 dB. THis ensure ...

The corner reflector dipole/Yagi in the photo (Consumer VHF/UHF TV Antenna) would probably not meet the required 14 dB front-to-back ratio at all UHF frequencies. Although the bow-tie dipoles have a ...

Specified VHF gain of the HD-1080 compared to a dipole ranges from –11 dB at channel 7 to zero dB at channel 13. VSWR is not specified. If rabbit ears work so well, why consider a much more expensive ...

Measured in decibels, ­antenna gain represents the VHF transmission pattern, and it can also affect range. ­Antennas vary from 3 dB for a 4-foot model to 9 dB for a 12- to 23-footer. Generally ...

A. Your antenna is the single most important factor affecting VHF radio range, and three key parameters determine antenna performance: gain, height and length. The higher the gain (decibel rating), ...

Every wireless device needs an antenna. This conductive mechanical device is the transducer that converts the radio frequency (RF) power to be transmitted into the electric and magnetic fields ...

He claims it will noticeably improve both transmit and receive by making a quarter-wave monopole into a makeshift dipole antenna ... a counterpoise antenna wire 11.5 inch for VHF, 6.5 for UHF ...