r11) Fu.H.E.c monitoring & DF receiver
this page is under reconstruction

Links to other pages on this site:
22a Torn.E.b
22b Data and and modifications for Kw.E.a
22c Info for LwEa, T8PL39 and NA6
22h Funkhorchempfänger u
e97 Modern 12V solidstate power converter

	seen from above
	seen from below

Fu.H.E.c seen from different angles


It is provided for a second instrument, but the manual says nothing about it. Had some of the right type of meters and connected the wires on the
rear, but never found it had particularly function. Possibly the AGC doesn't operate properly.

Funkhorch Empfänger-c (Monitoring receiver)
Circuit: 10x RV2P800 as
RF, RF, MIX, OSC, IF, IF, IF, Audion detector, Audio output, BFO/CAL. 2x Sirutor 5b as AGC rectifier.
IF= 1875kHz, single xtal-filter. Xtal controlled BFO: 1874.1/1875.9kHz.

Frequency ranges: 1. (White) 3.53-5.94MHz, 2. (Red) 5.77-9.68, 3. (Yel) 9.40-15.80, 4. (Blu) 15.35-25.80MHz.
Power requirement: 2V 1.9A, 90V 20mA. Automatic bias from anode current.
Inverter for 12V operation EW.h.
Measures (mm): 430 H x 340 W x 240 D, Weight: 27kg.

FuHEc: +90V..20mA +2V... 1,9A -------------- FuHEu: +90V...19mA +2V..1,8A

The bias circuit to consider when building a power supply for the receiver, similar circuit for KwEa, LwEa, but much simpler for FuHEu, TornEb

ESB Zusatz.
Zur Verminderung der Anfälligkeit von KW-Telefonieverbindungen nach Übersee hatte die Reichspost bereits 1931 auf Vorschlag der Fa. Telefunken (Dr. W. Runge) einen ESB-Verkehr Berlin-New York eingerichtet. ....und der Zusatz EB1/3a "Käthe" von Siemens zu Fu.H.E.c (1944/45) wurden übrigens auch gelegentlich für Abhörzwecke eingesetzt. Fritz Trenkle: Die dt. Funkpeil- und -Horch-Verfahren bis 1945, S.35.

EB1/3a, see pg 22i

D1054/1 Kurze Gerätebeschreibung "zum Einlegen in das Gerät" (DL6VW)

LA6NCA Helge operating the Fu.H.E.u1 with goniometer for direction finding 2004.10.29

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Last update: 2005.02.02