DX Engineering DXE-TVSU-1B, Руководство пользователя

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If you have external devices such as preamps, active antennas, or external relays that need to have
power removed during transmit, connect a 9-30 Vdc (500 mA max) power source to the
PRE AMP
POWER IN jack. Connect the devices requiring control to the PRE AMP POWER OUT jack.
You should normally use a well-filtered supply for these devices.
Note: Power supplied through the PRE-AMP "IN" jack always appears at the
PRE-AMP POWER "OUT" jack except during closure or keying events. If
power to the
TVSU-1B unit itself is removed, PRE-AMP POWER through
the "IN" and "OUT" connectors will be continuous; closure or keying events
will have no effect.
CAUTION: Applying external voltage to the PRE AMP POWER "OUT"
jack may damage the unit.
The
AUX OUT jack can be used for other special applications. It delays the closure signal, but not
the release.
For
PTT operation, wire the included 1/8" [3.5 mm] stereo plug so the tip connects to a foot switch
or other external PTT switch. The ring should connect to the transceiver PTT input (usually an
RCA-style jack). The sleeve is the common ground connection. A stereo Y-adapter that offers
separate connections to the tip and ring of the 1/8" [3.5 mm] stereo connector/plug cable could also
be used to convert the 1/8" [3.5 mm] stereo mini-plug into two RCA mono
style connectors. An example of this type of Y-adapter is a Hosa Products
model YRA-154 (reference: www.hosatech.com).
Do not use a Y-adapter that combines the tip and ring of a 1/8" stereo into both RCA mono
connectors. Be certain you are using a 'breakout' type Y-adapter or cable that provides for individual
connectors for tip and ring connections.
For CW operation, connect the hand key or keyer to the RCA-style
CW IN jack. Connect the CW
OUT jack to the CW key input on the transceiver. Side-tone audio for a speaker or headphones is
available at the
TONE jack. (Monaural audio, but uses both stereo channels.)
Determine the delays required for each output. All delays begin at closure or open points.
The delay time increments work independently and are not additive. Program the delay
settings for each function and set the CW side-tone pitch (page 12).
The
optional
DXE-DCPC-24 is specifically used in a DX Engineering receiving antenna
phasing system between the "PRE-AMP POWER OUT" port on the DXE-TVSU-1B
Time Variable Sequence Unit, and the "ANT PWR" power input on the DXE-NCC-1
Receive Antenna Phasing Controller. The DXE-DCPC-24 is a 24 inch red and black
stripe power cable that features TWO 2.1 mm DC power connectors known as
"barrel", "concentric" or "tip" connectors, one at each end. This special cable is used
in applications where DC power is supplied from one device to another.