Installation in 'A' and early 'B' vehicles was on the right side of the co-driver. This proved not so practical. It was changed to the front of the co-driver.
All 251's have the standard FuSpr F, the funksprechgerat (wireless-machine "F")
Installation in 'A' and early 'B' vehicles was on the right side of the co-driver. This proved not so practical. It was changed to the front of the co-driver.
It consists of several components that are connected as on this diagram.
| Antenne zuleitung | Cable to aerial |
| FernHörer | Ear piece |
| Gerät betriebsklar | Equipment ready for use |
| Lautsprecher | Loudspeaker |
| Mikrofon | Microphone |
| Sende-Empfangsumschalter | Transmit-receive switch |
| Umformer oder Wechselrichter | DC-AC converter |
| Verbindungskabel | Connecting cable |
| zur Spannungsquelle | to power source |
