Be sure to see our SignaLink USB FAQ for answers to the most common Questions!
Required - All SignaLink models incorporate a unique Auto-PTT™ circuit that
eliminates the need to connect to a computer Serial RS-232 Port like
other units. The Auto-PTT™ circuit automatically detects transmissions
from the sound card and activates the radio's PTT circuit. A front panel
"Delay" switch is provided to select optimum triggering in Digital
and Voice modes.
- The SL-1+ offers a significantly more sensitive Auto-PTT™
circuit than our original SignaLink. This insures compatibility with virtually all sound cards,
including those with unusually low output levels (common on new laptops and
some new desktops).
increased sensitivity also greatly improves performance on voice modes where
the signal levels vary widely in amplitude.
Isolation - Unlike other interfaces "claiming" to provide
isolation, all SignaLink models "truly" isolate your computer from your radio. This eliminates troublesome ground loops and prevents
hum and noise from degrading the signals.
Adjustable Receive and
Transmit Audio Levels
- Internal "TX Level" and
"RX Level" controls insure compatibility with virtually all radio
Mic, Data, and Accessory ports. In
addition, these controls permit most users to set their Transmit
Audio level one time, and then switch between Digital and Voice modes without
having to re-adjust the radio's Mic Gain control. The Receive Audio
level can also be set for "listening comfort", while still
providing the correct signal level to the computer.
Uses the Radio's Mic, Data, or
- While the original SignaLink was designed
specifically for use with the radio's Mic jack, the SL-1+ can be attached to
your radios Mic, Data, or Accessory port! This permits most users to
attach the SL-1+ to the back of the radio (Data or Accessory Port) and leave
their microphone plugged in!
Selectable Fixed or Variable
Transmit "Hang Time" Delay
- To provide optimum
performance in all Digital and Voice modes, the front panel "Delay"
switch lets you select between a fixed short delay, and a variable long
delay. The fixed short delay is approximately 28 ms, and is ideal for
modes that require fast switching times (packet, etc.). The variable
delay is adjustable from 300 ms to 3 seconds, and is perfect for slow CW and
all Voice modes (Repeater Linking, Remote Base, Voice Keyer, etc.).
Supports All Available Data
& Voice Modes
- The SL-1+ supports ALL Digital and Voice modes
that are available for sound card interfaces. This includes ALL
traditional modes such as CW, RTTY, AMTOR, and SSTV (to name a few), and ALL new modes
such as PSK-31, MT-63, and Internet Repeater Linking.
Support - If you like to listen to your radio’s audio while operating,
then you’ll appreciate the front panel “Auxiliary” audio output jack.
This jack will accept an external speaker or headphone and can be
configured to be active when the SignaLink is ON or OFF. It can also
be set to ALWAYS ON.
- The SL-1+ consumes so little power that
it can be powered by the “Accessory Voltage” found on most radio Mic, and
Accessory connectors. This makes for a very
simple and clean installation. On
radios that don’t have power available, we have provided an external power
jack on the rear panel (matching power plug included with unit).
Panel Switches and Indicators
front panel ON/OFF switch is provided to prevent accidental
transmissions. The receive signals are still enabled in the OFF position
for convenience in monitoring activity. Bright LEDs are provided to
indicate Power, Delay, and PTT status.
New Radio Cables Available - Fully assembled Radio cables for all of the common Mic, Data, and Accessory ports are now available for the SL-1+. See "Part Numbers & Options" below for details.
Every SignaLink is supplied with the following items:
**NOTE: Due to the high cost of manufacturing the 13-pin DIN cable there is an additional $5.00 charge for this item.
SignaLink SL-1+ Part Numbers (please specify when ordering):
Extra Radio Cables:
Optional Cable Accessory Kit (P/N SLASSY) - Includes The Following:
Power Supply: 6.75 - 15 Volts DC @ 13 ma (nominal)
Freq Response: 300Hz - 3.3KHz
In/Out Impedance: 600 Ohm (nom)
Attenuation: Radio to Sound Card - Adjustable Sound Card to Radio - Adjustable
Auto-PTT™ Delay: Fast - 28 milliseconds Variable - 300 ms to 3 seconds
PTT Circuit: MOSFET Transistor Rating - 15 Volts @ 75ma (max)
Radio Connector: Mic, Spkr, Pwr, PTT - RJ-45 Spkr - 3.5mm Mono
Sound Card Conn: Mic Input - 3.5mm Stereo Spkr Output - 3.5mm Stereo
Other Connectors: Aux. Spkr - 3.5mm Mono Aux. Power - 2.1mm Coaxial
Case: Extruded Aluminum - 6061T4
Dimensions: 1.1" x 2.7" x 3.2"
Operating Temp: -30C to +60C
Read a QST Review of the SignaLink.
Read Customer Comments about the SignaLink.
See a Product Comparison between the SignaLink SL-1+ and other interfaces.
Compare the supported Modes of the SignaLink to other interfaces.
View the SignaLink Frequently Asked Questions page.
Download software from our SignaLink™ Software page.
Download the Installation Manual from the SignaLink Support Page.
See Price List and Ordering
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and TigerTrak are trademarks of Tigertronics
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