Kenwood TR-7400A 2-Meter FM Transceiver

Technical Specifications

• Frequency Coverage (TX/RX): 144.000 to 148.000 MHz (2-meter VHF Amateur Band).
• Channel Tuning Mechanics: PLL frequency synthesizer circuit capable of managing up to 800 channels via front panel dial controls.
• Tuning Channel Steps: Selectable steps at 5 kHz, 10 kHz, or 100 kHz grid intervals.
• RF Transmit Output Power: High Power: 25 Watts nominal / Low Power: 5 Watts selectable.
• Repeater Frequency Offset: ±600 kHz standard split configuration with integrated Tx Offset controls.
• Tone Signaling: Built-in sub-audible continuous tone encoding circuitry for repeater access paths.
• Visual Readout Display: Vintage, bright digital multi-segment LED numeric frequency tracker.
• Power Draw Footprint: 11.5V to 16.0V DC (13.8V DC nominal) via a heavy-duty 2-pin connector line.

Station Role

The Kenwood TR-7400A provides the W8USR operating deck with dedicated, high-power local analog 2-meter communications capability. It functions as a classic monitoring post for local FM repeater arrays, simplex calling loops, and regional emergency traffic coordination systems across the local VHF footprint.

History with Radio W8USR

Dating back to the golden era of synthesized mobile VHF gear, the Kenwood TR-7400A is preserved on the station desk as an excellent example of vintage analog engineering. Sourced for local club communications and simplex testing, it has maintained its alignment perfectly, standing as a highly functional tribute to the evolution of mobile amateur radio infrastructure.