Alpinist 321 Shema ❲PREMIUM – OVERVIEW❳

The Alpinist 321 schematic reveals a classic superheterodyne architecture typical of late-Soviet consumer electronics:

It features a dual-band design covering LW (148.5–283.5 kHz) and MW (526.5–1606.5 kHz) . Using its internal magnetic antenna, it achieves a sensitivity of 1.5 mV/m on LW and 0.7 mV/m on MW, with a selectivity of 30 dB. alpinist 321 shema

Detailed alignment frequencies for the heterodyne and antenna circuits include 1630 kHz (MW) and 145 kHz (LW), with IF (Intermediate Frequency) set to 165 kHz . The Alpinist 321 schematic reveals a classic superheterodyne

The output power is rated at 500 mW nominal (800 mW maximum), driving a frequency range of 200–3550 Hz . This makes it suitable for speech and news broadcasts rather than music. The output power is rated at 500 mW

The design utilizes common Soviet transistors like the KT315 and KT361 for signal processing, and KT814/815/816/817 for the power amplification stages.

The (later renamed Alpinist RP-321 under new GOST standards in 1987) is a portable Soviet-era superheterodyne radio receiver produced by the Voronezh Polus enterprise starting in 1986. Technical Review & Performance