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Antennas for Limited Spaces
Some problems that while not unique to Florida are certainly more pronounced here Lots tend to be small, often less than 2000 square feet. Other homes tend to be fairly close by. In many areas, power lines are quite close to the houses, particularly in mobile home communities So what are some solutions?
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No, this is not about some cute antenna that's about the size of an oatmeal box and runs at 100%
This project was triggered by the desire to make available an easy to build active antenna to boost the passion for radio listening on HF and lower band
My garden is on only 225 square meters so i have no room for the normal 1/4 wave radials
The antenna is a 15m band dipole that is extended by coils to the 80m band and a radiation coupled 10m band dipole
This is an 80 metre dipole that fits in a small space
PIC-Keyer This project describes the construction of a real "QRP" keyer with a small microcontroller PIC 16F84, with slightly modified hardware also PIC16F62
RF Inductance Calculator Mean diameter of the air core coil, measured from conductor centre to conductor centre include the wire insulation thickness, if any
Voice Recorder Gestito dall'integrato in questione ed offre la possibilità di registrare più messaggi per una durata massima di un minuto con buona fedeltà di riproduzione