Swl active hula hoop square loop rx antenna
Progetto di un'antenna a loop attiva di JohnHawes G8CQX con alcune variazioni
post 23 Dec 2021
Preamplifiers Links →
Extreme Low Noise Preamplifier
Originally I looked for a very low noise balanced preamplifier for dynamic microphones, but with a gain of 20 dB only
How to Get the Most from Attenuators and Preamps
Most amateur transceivers include a preamp and/or attenuator, accessed either by switches on the front panel or via the radio's software menu
High Performance Tunable LF-HF Preamp
This is a further progression in the application of the J310 JFET in high performance preamplifiers
Low noise relais schwitched 2meter mast mounted preamplifier, DL5DBM
Low noise relais schwitched 2meter mast mounted preamplifier
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Originally I looked for a very low noise balanced preamplifier for dynamic microphones, but with a gain of 20 dB only
Most amateur transceivers include a preamp and/or attenuator, accessed either by switches on the front panel or via the radio's software menu
This is a further progression in the application of the J310 JFET in high performance preamplifiers
Low noise relais schwitched 2meter mast mounted preamplifier
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