low noise

53 links

160m Short Vertical Loft Antenna - G3XBM
This is a very small vertical 160m antenna that fits in the loft of even ...

[ Hits: 208 | Votes: 1 | Rating: 7 ]

An Overview of Beverage Receiving Antennas - N0AX
This article explores Beverage antennas a type used for low frequency radio reception Despite the ...

[ Hits: 19 | Votes: 0 | Rating: 0 ]

Kuhne Electronic - Kuhne Electronic
High quality microwaves components for professional and radioamateurs Power Amplifiers Low Noise Amplifiers Es hail ...

[ Hits: 106 | Votes: 0 | Rating: 0 ]

Recognition of CW signs at different listening levels and frequencies - PubMed
The recognition of telegraphy masked by noise at 40 and 80 signs min telegraphy speed ...

[ Hits: 81 | Votes: 1 | Rating: 7 ]

Propagation on 630 Meters and 2200 Meters - K9LA
This is a theoretical look at propagation on 630 Meters and 2200 Meters using ray ...

[ Hits: 39 | Votes: 1 | Rating: 10 ]

Hamtech - HA8YU
HAM made engineering products supplies and produces coaxial relays antenna switches sequencers roller inductors variable ...

[ Hits: 192 | Votes: 0 | Rating: 0 ]

23cm Low Noise Amplifier - PA4DAN
A low noise amplifier for the 23cm band with schematic diagram picutes and instructions article ...

[ Hits: 66 | Votes: 0 | Rating: 0 ]
VHF UHF Low noise Amplifiers - VE2EK
2m 70cm 23cm Low noise Amplifiers 3 Low noise amplifiers Outdoor unit with DB6NT parts ...

[ Hits: 128 | Votes: 2 | Rating: 5 ]
A JFET preamplifer for 50 MHz - AA8C
The circuit is simple designed with a low component count and an inherent simplicity in ...

[ Hits: 98 | Votes: 0 | Rating: 0 ]

QRM Eleminator by DC2WK - DC2WK
A home made project to reduce noises from lower bands an X Phase QRM Eliminator ...

[ Hits: 180 | Votes: 0 | Rating: 0 ]

Common-mode chokes Measurements - IN3OTD
Common mode chokes are useful solutions for RFI reduction Winding a few turns of coaxial ...

[ Hits: 156 | Votes: 1 | Rating: 8 ]

2m to 70cm Transverter Circuit - VK4ADC
A 70cm 432 MHz Transverter Project transverter circuit is an electronic device that converts a ...

[ Hits: 82 | Votes: 0 | Rating: 0 ]
Innovative 2m to HF Converter - N1UL
Ulrich L Rohde N1UL conceived an outstanding 2m to HF receiving converter with specific requirements ...

[ Hits: 96 | Votes: 0 | Rating: 0 ]