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Duplexer 144/432 Mhz
Questo duplexer autocostruibile in pochi minuti,permette di operare con due antenne 144/435 separate con un RTX bibanda
post 01 Oct 2024
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Kiwi CW 40mt
The model described here works on the 40-meter band
LC Meter based on PIC16F628A
This is one of the most accurate and simplest LC inductance / capacitance Meters that one can find, yet one that you can easily build yourself
LC Meter kit has sold out
The LC Meter is a Morse code inductance - capacitance meter kit
Multiband Transmitting BPF Project
After installing a couple of wire antennas in the trees we discovered that when one of us was transmitting the other couldn't receive anything but interference. I later learned that simultaneous operation of two radio transmitters in close proximity on separate bands will overload and desensitize the radio's receivers. A bandpass filter for each radio can be used to reduce this problem but the filter must be able to withstand the transmitter's power
170
The model described here works on the 40-meter band
This is one of the most accurate and simplest LC inductance / capacitance Meters that one can find, yet one that you can easily build yourself
The LC Meter is a Morse code inductance - capacitance meter kit
After installing a couple of wire antennas in the trees we discovered that when one of us was transmitting the other couldn't receive anything but interference. I later learned that simultaneous operation of two radio transmitters in close proximity on separate bands will overload and desensitize the radio's receivers. A bandpass filter for each radio can be used to reduce this problem but the filter must be able to withstand the transmitter's power
Ferrite Shop Ferrite-shop on-line shop, cable clamps,toroids, cable cores, technic,ferrite material choice
Amateur radio kits by Kanga US
Pcs Electronics RF power amplifiers-pallets archives-ABC of FM AM DAB+ DRM radio transmitters