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Ameritron ARB-704 - Ameritron Amplifier Transceiver Keying Interfaces
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Ameritron ARB-704 - Ameritron Amplifier Transceiver Keying Interfaces

Users say:
The ARB-704 is a great value and is easy to install. It is suitable for modern transceivers and can be used to connect a 12V amplifier. It is also easy to use and provides peace of mind that the amplifier will work correctly.
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Ameritron ARB-704: Amplifier Keying Interface, for Radio to Amp Connection, Ext. 12 Vdc or pwr via PNP interface cable, Each - Ameritron Amplifier-Transceiver Keying Interfaces are designed to protect expensive radios from damage from keying line transients and steady state current voltage. They will work with almost any transce…
Ameritron ARB-704: Amplifier Keying Interface, for Radio to Amp Connection, Ext. 12 Vdc or pwr via PNP interface cable, Each - Ameritron Amplifier-Transceiver Keying Interfaces are designed to protect expensive radios from damage from keying line transients and steady state current voltage. They will work with almost any transceiver without the need of the plug-and-play pre-wired cable. These advanced interfaces are compatible with all common radios and amplifiers, even though radios and amplifiers do not have standardized voltages, accessory plugs, or wiring. The input is designed to be compatible with any transmitter or transceiver, and the output is compatible with AC control lines or DC positive or negative amplifier control lines having up to 200 V of peak open circuit voltage and up to 300 mA of operating current. Amplifiers can damage radios if the amplifier uses a high relay control voltage, has back-EMF voltage spikes, or draws excessive current on the relay control line. Such damage often appears as stuck or sticky transmit relays in exciters, or shorted transistors on transmit control lines. In cases where the radio is damaged, the system transmits normally, but the external amplifier stays locked in a transmit mode. This prevents receive signals from coming through the amplifier with normal levels whenever the amplifier is supposed to be in the un-keyed operating "bypass" mode. Ameritron amplifier transceiver keying interfaces have many electrical advantages over conventional relay buffer systems. They have no moving parts, switch almost instantly, are noiseless, have very long life, and will not develop dirty contacts. These interfaces are especially suited for buffering vacuum relay QSK amplifiers, since they do not affect attack or release times in an adverse manner. Ameritron Amplifier-Transceiver Keying Interfaces operate with transmitters or transceivers that pull amplifier control lines to ground or operate with positive or negative control voltag
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Review summary

AI-generated content
The ARB-704 is a great value and is easy to install. It is suitable for modern transceivers and can be used to connect a 12V amplifier. It is also easy to use and provides peace of mind that the amplifier will work correctly.

Pros

  • Easy to use
  • Great value
  • Compatible with multiple radios
  • Efficient and efficient

Cons

  • Requires correct cord for some models
Read original reviews

Description

Ameritron ARB-704: Amplifier Keying Interface, for Radio to Amp Connection, Ext. 12 Vdc or pwr via PNP interface cable, Each - Ameritron Amplifier-Transceiver Keying Interfaces are designed to protect expensive radios from damage from keying line transients and steady state current voltage. They will work with almost any transceiver without the need of the plug-and-play pre-wired cable. These advanced interfaces are compatible with all common radios and amplifiers, even though radios and amplifiers do not have standardized voltages, accessory plugs, or wiring. The input is designed to be compatible with any transmitter or transceiver, and the output is compatible with AC control lines or DC positive or negative amplifier control lines having up to 200 V of peak open circuit voltage and up to 300 mA of operating current. Amplifiers can damage radios if the amplifier uses a high relay control voltage, has back-EMF voltage spikes, or draws excessive current on the relay control line. Such damage often appears as stuck or sticky transmit relays in exciters, or shorted transistors on transmit control lines. In cases where the radio is damaged, the system transmits normally, but the external amplifier stays locked in a transmit mode. This prevents receive signals from coming through the amplifier with normal levels whenever the amplifier is supposed to be in the un-keyed operating "bypass" mode. Ameritron amplifier transceiver keying interfaces have many electrical advantages over conventional relay buffer systems. They have no moving parts, switch almost instantly, are noiseless, have very long life, and will not develop dirty contacts. These interfaces are especially suited for buffering vacuum relay QSK amplifiers, since they do not affect attack or release times in an adverse manner. Ameritron Amplifier-Transceiver Keying Interfaces operate with transmitters or transceivers that pull amplifier control lines to ground or operate with positive or negative control voltag

Specifications

Brand NameAmeritron
FabricanteAmeritron
Item Model NumberArb-704
ManufacturerAmeritron
Model NumberArb-704
Part NumberArb-704

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