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Installing long wire antenna
Installing a long wire antenna when the only best way is to attach one end to a tree
post 15 May 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
Low cost Portable QRP HF Antenna
The antenna matched very well on 7.090 MHz, 14.2MHz and 8.5MHz
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
The antenna matched very well on 7.090 MHz, 14.2MHz and 8.5MHz
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
Antenna splitter per VHF-UHF per quattro ricevitori Chi dispone di una sola antenna e vuole collegarvi più di un ricevitore necessità di uno splitter
Amateur radio kits by Kanga US
50MHz to 28MHz RX Converter The concept of the rx converter is quite simple and nothing really new. the local oscillator is a standard colpitts crystal oscillator producing the 22mhz lo signal