Montreal's MediumWave, FM, SW and TV DX
- Information of propagation in and around montreal Canada for shortwave, am , fm and TV dxing, loggings section, propagation forecast and Sporadic E alerts, QSl page, updated frequently
RTSH - Online
- Radio Tirana and Albanian Television (RTSH) broadcasts local news, music, and entertainment programs via FM, TV and mediumwave and international programs in 7 languages by shortwave radio.
QRO via Russia
- Power amplifiers from amateur radio operators around the world which are designed/built using Russian tubes.
- This group is here to discuss linear amplifiers used on the 11 meter citizens band.
Tube Amplifier data and tech info
- Source of common model manuals and amateur help on amplifier problems for the amateur bands, Discussion of vacuum tube amplifiers. Technical information and discussion of obselete tube replacement.
144 MHz preamplifier with BF981
- Design of a preamplifier for 144 MHz with 1 dB NF and 23 dB gain using BF981. This amplifier is using a low cost silicon MOSFET (BF981 from Philips) to give more than 20 dB gain with around 1 dB noise figure on 2 meter.