// World of Amateur Radio

Description

The model 318 Amplifier Keying Interface provides an excellent means of keying a non-QSK amplifier from a full QSK transceiver. The Amp Key Interface allows for either closure to ground or positive key voltage during transmit. Four controls/indicators are found on the front panel.

Manual dropout delay control allows for 100 ms to 2 seconds of transmit delay

“KEY” LED provides a visual indication that a key signal is applied to the amplifier

Delay/Bypass switch eliminates delay and keys amp relay directly from radio transmit line.

PTT button provides a convenient means of keying the radio while tuning or testing the amplifier.

Two DIN connectors for exclusive use with the 599/599AT Eagle and Eagle accessories

DC power connector for +12 to +14 VDC power source (Female RCA 40 mA max)

Amp Key jack (RCA Phono Connector) provides a relay closure to key the amplifier

The 318 Interface was designed for direct connection to a TEN-TEC Eagle transceiver.

What’s Included:

8 pin to 8 pin DIN cable measures 6.5 ft.

Dual RCA audio cable for keying lines measures 6 ft.

Specifications

Power Requirements: 12 – 16 VDC @ 40 ma max.

(keyed, delay set to minimum)

Delay Time Range: 100 – 2000 msec (approximately)

Keying Voltage (“+ Key” from radio): +4 to +30 VDC @ 3 ma maximum

Output Relay Contact Ratings: 2A @ 30 VDC

0.5A @ 125 VAC

Relay Contact Activate Time 2 / 4 ms typical / max

Relay Contact Release Time 4 / 6 ms typical / max

Price: $89 USD

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