Datron TW7000 Spécifications télécharger pdf (Page 14)

2-2 Antenna Connection

The pin assignments for the input power connector are as follows:

The dc power connection between the TW7000 and its power source

should always be made as short as possible. If a DWC power cable is

not available, the following cables should be used: 14 AWG for runs

to 3 feet, 12 AWG for runs to 9 feet, or 10 AWG for longer runs.

The fuse holder (pin 346877) on the back panel contains a 25A, 3-AG

fuse, and a spare fuse of the same value.

Antenna Connection

The TW7000 is designed to work into a 50 ohm, RF impedance. The

output RF connector (antenna) is a PL259 UHF-type connector.

Broadband antennas and dipoles can be connected directly to this out-

put, while high-power amplifiers and antenna tuners use DWC spe-

cially designed 50 ohm cables. For specific connections, refer to the

RF Cabling Accessories figure on page 2-11.

Microphone Audio Connection

Low-level audio accessories for use with the TW7000 include the fol-

lowing:

Two 6-pin microphone connectors are provided on the front panel of

the TW7000. The two connectors are wired in parallel and are suitable

for use by these audio accessories. The input impedance is a nominal

150 ohm. Most dynamic, ceramic, and magnetic microphones operate

with the TW7000. All DWC-supplied audio accessories have the cor-

Pin Number Description

1 Return (ground)

212Vdc

Part Number Description

PM Heavy-duty hand microphone

DM Dynamic disk microphone

KEY Morse key

EP Headphones

EPL Lightweight headphones

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Datron TW7000 Spécifications Page 14