using radio and HF - doc-developpement
... twenty years association with a missionary society's network from the home base in Britain. After two short visits in 1980 and in 1983 he has spent two years from October 1986 working on the network in Zaire. He has been looking at ways of increasing reliability of equipment and improving operating ...
... twenty years association with a missionary society's network from the home base in Britain. After two short visits in 1980 and in 1983 he has spent two years from October 1986 working on the network in Zaire. He has been looking at ways of increasing reliability of equipment and improving operating ...
Spectrum Rules - ပြည်ထောင်စုသမ္မတမြန်မာနိုင်ငံ
... “Co-Primary Basis” means the nature of a right granted to the holder of a License to use specified frequencies, subject to the condition that the Licensee shall coordinate with Other Licensees also licensed on a Co-Primary Basis to limit Harmful Interference of additional Radio Apparatus and service ...
... “Co-Primary Basis” means the nature of a right granted to the holder of a License to use specified frequencies, subject to the condition that the Licensee shall coordinate with Other Licensees also licensed on a Co-Primary Basis to limit Harmful Interference of additional Radio Apparatus and service ...
10 GHz LNA
... antenna to the LNA during receive and to the PA (also mounted nearby) during transmit operation. The LNA was designed to operate from +12 volts. I also wanted at least 18 dB of gain, less than 2 dB noise figure and unconditional stability. Since this project was to be built entirely at home without ...
... antenna to the LNA during receive and to the PA (also mounted nearby) during transmit operation. The LNA was designed to operate from +12 volts. I also wanted at least 18 dB of gain, less than 2 dB noise figure and unconditional stability. Since this project was to be built entirely at home without ...
APPLICATION NOTE AT02876: Atmel REB212BSMA Hardware User Manual Atmel MCU Wireless Introduction
... The radio transceiver reference crystal, Q1, shall be isolated from fast switching digital signals and surrounded by a grounded guard trace to minimize disturbances of the oscillation. Detailed layout considerations can be found in Section 5.2. The REB212BSMA uses a Siward SX4025 crystal with two lo ...
... The radio transceiver reference crystal, Q1, shall be isolated from fast switching digital signals and surrounded by a grounded guard trace to minimize disturbances of the oscillation. Detailed layout considerations can be found in Section 5.2. The REB212BSMA uses a Siward SX4025 crystal with two lo ...
"Next-Generation BTL/Futurebus Transceivers Allow Single
... Texas Instruments (TI) reserves the right to make changes to its products or to discontinue any semiconductor product or service without notice, and advises its customers to obtain the latest version of relevant information to verify, before placing orders, that the information being relied on is cu ...
... Texas Instruments (TI) reserves the right to make changes to its products or to discontinue any semiconductor product or service without notice, and advises its customers to obtain the latest version of relevant information to verify, before placing orders, that the information being relied on is cu ...
FTT-10A Free Topology Twisted Pair Transceiver
... The FTT-10A transceiver is compatible with Echelon's LPT-10 Link Power Transceiver, and these transceivers can communicate with each other on a single twisted pair cable. This capability provides an inexpensive means of interfacing to nodes whose current or voltage requirements would otherwise excee ...
... The FTT-10A transceiver is compatible with Echelon's LPT-10 Link Power Transceiver, and these transceivers can communicate with each other on a single twisted pair cable. This capability provides an inexpensive means of interfacing to nodes whose current or voltage requirements would otherwise excee ...
FTT-10A Free Topology Twisted Pair Tranceiver Datasheet
... The transceiver is housed in an encapsulated plastic shell which contains the transformer and signal processing electronics. The compact package is only 7.2mm (0.28 inches) high and is ideal for use in very low profile applications such as DIN packs. The sealed housing protects the transceiver shoul ...
... The transceiver is housed in an encapsulated plastic shell which contains the transformer and signal processing electronics. The compact package is only 7.2mm (0.28 inches) high and is ideal for use in very low profile applications such as DIN packs. The sealed housing protects the transceiver shoul ...
TPS61196EVM-600 User`s Guide (Rev. A)
... DEMONSTRATION OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end product fit for general consumer use. It generates, uses, and can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC or ICES-0 ...
... DEMONSTRATION OR EVALUATION PURPOSES ONLY and is not considered by TI to be a finished end product fit for general consumer use. It generates, uses, and can radiate radio frequency energy and has not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC or ICES-0 ...
Amateur Radio Technician Class Element 2 Course
... Remote control is the type of control used when the control operator is not at the station location but can indirectly manipulate the operating adjustments of a station. The FCC presumes the station licensee to be the control operator of an amateur station unless documentation to the contrary is in ...
... Remote control is the type of control used when the control operator is not at the station location but can indirectly manipulate the operating adjustments of a station. The FCC presumes the station licensee to be the control operator of an amateur station unless documentation to the contrary is in ...
2 Use of Electromagnetic Energy and Resultant Noises
... SUGIURA Akira Recently, the advent of RF-ID systems and PLC systems have raised a new problem of electromagnetic interference (EMI) between newly developed systems and other various systems including radio stations using the shortwave band. In this connection, EMI limits for a variety of equipment a ...
... SUGIURA Akira Recently, the advent of RF-ID systems and PLC systems have raised a new problem of electromagnetic interference (EMI) between newly developed systems and other various systems including radio stations using the shortwave band. In this connection, EMI limits for a variety of equipment a ...
F re esca le S em ic onduc to r, I nc
... licenses granted hereunder to design or fabricate any integrated circuits or integrated circuits based on the information in this document. Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the ...
... licenses granted hereunder to design or fabricate any integrated circuits or integrated circuits based on the information in this document. Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the ...
G4A01 Which of the following is one use for a DSP in an amateur
... G4 - AMATEUR RADIO PRACTICES [5 Questions - 5 groups] G4A G4B G4C G4D G4E ...
... G4 - AMATEUR RADIO PRACTICES [5 Questions - 5 groups] G4A G4B G4C G4D G4E ...
Repair Tips for Bearcat Scanners
... currently charges a flat rate of $54 for scanner repairs. They will repair and return "out of warranty" items without an estimate unless the repair charges exceed the flat rate charges. The phone number for repair is (800)297-1023, too. I recommend you call repair before sending the broken scanner. ...
... currently charges a flat rate of $54 for scanner repairs. They will repair and return "out of warranty" items without an estimate unless the repair charges exceed the flat rate charges. The phone number for repair is (800)297-1023, too. I recommend you call repair before sending the broken scanner. ...
Elec - eHam
... For example, 28.400 MHz has a wavelength of 10.56 meters, so it’s on the 10 meter band. There is little frequency space for the longer wavelengths; for 40 and 80 meters it’s only .05 MHz, for 10 meters it’s .4 MHz. Because there is so little space on the HF bands, you’re only allowed to use modes th ...
... For example, 28.400 MHz has a wavelength of 10.56 meters, so it’s on the 10 meter band. There is little frequency space for the longer wavelengths; for 40 and 80 meters it’s only .05 MHz, for 10 meters it’s .4 MHz. Because there is so little space on the HF bands, you’re only allowed to use modes th ...
Elec - eHam
... The Federal Communications Commission (FCC) makes and enforces the rules for amateur radio (the amateur service) in the United States. Two reasons for amateur radio in the US are to increase the number of trained radio operators and electronics experts, and improve international goodwill. The FCC mu ...
... The Federal Communications Commission (FCC) makes and enforces the rules for amateur radio (the amateur service) in the United States. Two reasons for amateur radio in the US are to increase the number of trained radio operators and electronics experts, and improve international goodwill. The FCC mu ...
XTS5000 Series
... Lithium Ion (Li-ion) batteries. These units offer quick radio release and dead battery operation and are powered by attaching their supply cable to the 12V battery inside a police car, utility truck or other vehicle. Connectors are provided for the vehicle antenna, mobile microphone and optional amp ...
... Lithium Ion (Li-ion) batteries. These units offer quick radio release and dead battery operation and are powered by attaching their supply cable to the 12V battery inside a police car, utility truck or other vehicle. Connectors are provided for the vehicle antenna, mobile microphone and optional amp ...
Mitrek conversion to Repeater or link
... Acronyms, Definitions, semantics and Theory basics: To be very clear on this philosophy, we will start with very basic theory. Radio systems send intelligence (voice, data, etc.) by modulating the originating transmitter and decoding (detecting) this modulation at the far end receiver back to somet ...
... Acronyms, Definitions, semantics and Theory basics: To be very clear on this philosophy, we will start with very basic theory. Radio systems send intelligence (voice, data, etc.) by modulating the originating transmitter and decoding (detecting) this modulation at the far end receiver back to somet ...
2014 No-Nonsense Technician Class Amateur Radio License Study
... to know the basics of electricity and some of the units we use in electronics. The most important concepts are current, voltage, resistance, power, and frequency. Voltage is the force that causes electrons to flow in a circuit. Voltage is sometimes called electromotive force, or EMF. Voltage is the ...
... to know the basics of electricity and some of the units we use in electronics. The most important concepts are current, voltage, resistance, power, and frequency. Voltage is the force that causes electrons to flow in a circuit. Voltage is sometimes called electromotive force, or EMF. Voltage is the ...
The No-Nonsense, Technician Class License
... to know the basics of electricity and some of the units we use in electronics. The most important concepts are current, voltage, resistance, power, and frequency. Voltage is the force that causes electrons to flow in a circuit. Voltage is sometimes called electromotive force, or EMF. Voltage is the ...
... to know the basics of electricity and some of the units we use in electronics. The most important concepts are current, voltage, resistance, power, and frequency. Voltage is the force that causes electrons to flow in a circuit. Voltage is sometimes called electromotive force, or EMF. Voltage is the ...
Radios for the hobbyist - [email protected] - Indian Institute of Technology
... Local oscillator to mix the input signal to 455 kHz To receive 1000 kHz, local oscillator at 1455 kHz 1455 kHz LO also translates 1910 kHz to 455 kHz! Input tuned circuit to remove 1910 kHz (image) signal Doesn’t have to remove the next channel, as in a TRF radio Nagendra Krishnapura ...
... Local oscillator to mix the input signal to 455 kHz To receive 1000 kHz, local oscillator at 1455 kHz 1455 kHz LO also translates 1910 kHz to 455 kHz! Input tuned circuit to remove 1910 kHz (image) signal Doesn’t have to remove the next channel, as in a TRF radio Nagendra Krishnapura ...
- Carson Manufacturing Company, Inc.
... Electrical connections to the amplifier are made using the wiring harness supplied. If the amplifier needs service the connector can be easily removed without unwiring the harness. The power supply for the amplifier must be capable of delivering peak currents up to 50 amps for adequate short circuit ...
... Electrical connections to the amplifier are made using the wiring harness supplied. If the amplifier needs service the connector can be easily removed without unwiring the harness. The power supply for the amplifier must be capable of delivering peak currents up to 50 amps for adequate short circuit ...
Technician License Class Study Guide
... Alternating current or AC is the name for current that reverses direction on a regular basis. (T5A09) Frequency is the term that describes the number of times per second that an alternating current reverses direction. (T5A12) Alternating current, or AC, is what is available from your home’s wall so ...
... Alternating current or AC is the name for current that reverses direction on a regular basis. (T5A09) Frequency is the term that describes the number of times per second that an alternating current reverses direction. (T5A12) Alternating current, or AC, is what is available from your home’s wall so ...
The RF Line
... the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters ...
... the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters ...
BRD4544A Reference Manual
... the square of the supply voltage change: i.e. the decrease in power can be ~6 dB in the 1.8–3.8 V range) and the inaccurate nonlinear power steps. Also their current consumption and the peak voltage on the TX pin are sensitive to the termination impedance variation, and they usually require slightly ...
... the square of the supply voltage change: i.e. the decrease in power can be ~6 dB in the 1.8–3.8 V range) and the inaccurate nonlinear power steps. Also their current consumption and the peak voltage on the TX pin are sensitive to the termination impedance variation, and they usually require slightly ...
Walkie-talkie
A walkie-talkie (more formally known as a handheld transceiver, or HT) is a hand-held, portable, two-way radio transceiver. Its development during the Second World War has been variously credited to Donald L. Hings, radio engineer Alfred J. Gross, and engineering teams at Motorola. Similar designs were created for other armed forces, and after the war, walkie-talkies spread to public safety and eventually commercial and jobsite work. Major characteristics include a half-duplex channel (only one radio transmits at a time, though any number can listen) and a ""push-to-talk"" (PTT) switch that starts transmission. Typical walkie-talkies resemble a telephone handset, possibly slightly larger but still a single unit, with an antenna mounted on the top of the unit. Where a phone's earpiece is only loud enough to be heard by the user, a walkie-talkie's built-in speaker can be heard by the user and those in the user's immediate vicinity. Hand-held transceivers may be used to communicate between each other, or to vehicle-mounted or base stations.