Connecting The Radio - Tigertronics SignaLink USB Installation And Operation Manual

size gap between the socket and the insulation on each
jumper wire. If you notice a larger gap on one or more
wires, then that wire is probably not pushed-in securely.
As noted at the beginning of this section, the SignaLink USB
doesn't use the PWR jumper, so it should not be installed.
You should have the SPK jumper installed only if you have
Speaker/RX audio available on the radio connector that you
are using. If this signal isn t available (a possibility with Mic
jacks Check your radio manual!), then this jumper should
NOT be installed. Instead, you will need to connect the
supplied audio cable as described below in the Connecting
The Radio section. Once you are confident that the jumpers
are installed correctly, you can put the SignaLink USB circuit
board back into the case (see Opening The SignaLink Case
at the beginning of this manual).

- CONNECTING THE RADIO -

A radio cable with the appropriate connector for your radio
was supplied with the SignaLink USB. The 8-pin modular
end of this cable plugs into the SignaLink s RJ-45 RADIO
connector, and the other end plugs into the radio s Mic,
Data, or Accessory Port jack. Using your radio manual for
reference, carefully identify the connector on the radio that
the radio cable should be plugged into. For Mic cables, this
connection is virtually always on the front of the radio, and
there's generally only one Mic connector. For Data or
Accy Port cables, this connection is virtually always on the
back of the radio. There is usually only one matching
connector that the cable will plug into, however there are
often many different connectors on the back of the radio so
you'll need to look carefully. The connection used by the
SignaLink is usually called something similar to Data or
Accy , such as ACC , ACC1 , or
may also be called Packet . Note that connectors labeled
RTTY are virtually always for FSK use only and will not
work with the SignaLink.
DVS2 , Remote , CAT , Band Data and Patch serve
other purposes and will not work with the SignaLink.
Once you have identified the correct connector on your
radio, carefully align the plug on the cable with the socket
on the radio, and push the plug in securely. Then, plug the
RJ-45 end of the cable into the SignaLink's Radio connector.
NOTE: Most connectors are keyed to prevent incorrect
insertion but it is still possible to install some incorrectly
(13-pin DIN connectors can be plugged in exactly upside-
down!) Please be sure to look carefully at both the socket on
the radio and the plug on the cable, and align the two
properly. Do not use any markings (arrow, etc.) on the
cable for alignment as they may not match the radio.
SPKR Audio Input Jack
The SignaLink USB has a SPKR audio input jack on the
rear panel that can be connected to the radio's External
Speaker, Headphone, or other audio output jack, if this
signal isn't available on the radio's Mic connector. Note that
Data/RTTY , but it
Similarly, jacks labeled as
the SPKR jack is not normally used if the SignaLink is
connected to the radio's Data or Accy Port since these
connections always provide the RX Audio signal.
If the SignaLink is connected to your radio's Mic jack, then
check your radio manual to see if the Speaker Audio signal is
available there. It is generally labeled as AF Output ,
Speaker , or RX Audio . If the Speaker Audio signal is not
available on the Mic jack then you will need to connect the
supplied audio cable between the SignaLink's SPKR jack and
the radio's External Speaker or Headphone jack (a fixed level
audio output can also be used with the appropriate user-
supplied adapter). Be sure that the cable is plugged in
securely on both ends (the plugs should snap in place).
NOTE: You should NOT connect the audio cable as
described above if either of the following are true;
·
Speaker Audio is available on the radio's Mic jack and
you have installed the SPK jumper wire inside the
SignaLink's JP1 socket, or enabled the SPKR jumper on the
jumper module that you have plugged into the JP1 socket.
·
The SignaLink is connected to the radio's Data or Accy
Port which already supplies the RX Audio signal.
AUX Audio Output Jack
The SignaLink USB has an Auxiliary Audio jack ( Aux ) on
the rear panel that can be used to attach an external radio
speaker, or headphones for monitoring receiver audio. This
is especially useful if your radio s built-in speaker has been
cut-off by a speaker/headphone connection to the SignaLink.
Note that the Aux jack can only be used with a
speaker/headphones if the SignaLink USB is connected to
high-level Speaker audio.
connected to your radio s Data or Accessory Port, then you
will not be able to use this output for monitoring because
virtually all of these ports have low-level outputs.
NOTE: Attaching or removing an external speaker will
change the loading on the radio s speaker circuit, and likely
cause a change in the audio level going to the SignaLink.
This may require you to re-adjust the SignaLink s RX level
control or the radio s Volume control to compensate.
MON Audio Output Jack
The SignaLink USB has a Transmit Audio Monitor jack
( Mon ) on the rear panel that can be used with amplified
speakers or high-Z headphones to monitor the SignaLink s
Transmit Audio signal. The output level of this jack varies
with the computer s software volume controls, and provides
a maximum level of approximately 400mv p-p into 1Kohm.
This is sufficient to drive most amplified speakers and high-
Z headphones, but not un-amplified speakers.
NOTE: The Monitor output is not isolated from the
computer, so it may be possible to hear low-level power
supply hum or noise generated by the computer or amplified
3
If the SignaLink USB is