Large arb-704 ptt linear interface

Each transceiver has an exit of coding for an amplifier, but not all those outputs are able to encode the high voltages or currents of an amplifier.  High tensions or voltage peaks can destroy the coding phase of the transceiver.  To avoid this, an additional Buffer relay is used such as the Arb-704. {

{ The large ARB-704 is a semiconductor coding buffer to control the PTT line of almost all amplifiers.  { manages tensions up to 200 V and currents up to 300 mA.  this covers almost all the power amplifiers available on the market today.  The voltage at the minimum of the amplifier can be positive or generative or even approx.  { The Key Buffer Buffer against Earth, works absolutely without noise and is quick enough to manage the QSK keying without changing the shape of the impulse of the button. {

The entrance can be configured by internal bridges for various levels of voltage, positive or negative.  { This makes the ARB-704 usable with almost all transceivers.  { The entrance current is less than 1 mA.  also very sensitive coding exits are similar to those of the IC-706 can be managed.

wiring and the installation of the ARB-704 are very simple.  the device is equipped with both RCA sockets (cinch) and a 5-pin DIN socket for ready cables (see below).  the RCA sockets are used with standard RCA cable for PTT from TRX to Arb-704 and up to the amplifier.  if you use ALC, these connections bypassano arb-704, TRX and PA are connected directly to the Alc.

Wimo offers ready -made cables for many transceivers.  these cables use in most cases the accounts on the back of the radio.  the arb-704 must be powered from 9 to 18 V cc, a separate CC cable is provided.  some ready-made cables absorb the diet directly from the transceiver.