Kierunkowa łączność podczas II wojny światowej
W tym fragmencie jest odpowiedz lol

The hand-held SSTC-502 transceiver uses a dual triode as a combination super-regenerative detector during receive, and an oscillator during transmit. Two other tubes act as a microphone amplifier and modulator. The antenna is a simple dipole, attached to the top of the unit. The operating frequency is 260 MC (the original design was for 250 MC, but it was learned that the Germans had a sweep receiver that operated up to 250 MC). The only controls are for regeneration and tuning (apparently for fine tuning only). Battery power consists of two "D" cells in parallel for the filaments, and two 67.5V batteries for the plates. Modulation was really a combination of AM and FM, and was received as an FM signal by the SSTR-6.

Po prostu Niemcy nie mogli słuchać na tych częstotliwościach ,ot i cała tajemnica i tylko podziwiać że już wtedy pracowano tak wysoko (250MHz)


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