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Communications Controller
... A P o rtab le D u al A u d io P a n el w ith V O X Intercom
Add Dual Radio
Communications
Capability
to your
Mission!
Model SPCC- 2
Sigtronics' Portable Communication Contr oller
Operating Instructions
Made in U.S. A.
Specialists in "SOUND" Management
SIGTRONICS CORP.
949 N. Cataract Ave., #D, San Dimas, CA 91773 (909) 305-9399
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Table of Contents
Summary of Contents for Sigtronics SPCC-2
- Page 1 … A P o rtab le D u al A u d io P a n el w ith V O X Intercom Add Dual Radio Communications Capability to your Mission! Model SPCC- 2 Sigtronics’ Portable Communication Contr oller Operating Instructions Made in U.S. A. Specialists in “SOUND” Management SIGTRONICS CORP. 949 N. Cataract Ave., #D, San Dimas, CA 91773 (909) 305-9399...
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Page 2: Table Of Contents
TABLE OF CONTENTS INTRODUCTION..........1 TECHNICAL HIGHLIGHTS........2 APPLICATIONS..........2 CONNECTION DRAWING (FIGURE 1)......3 CONTROL FUNCTIONS........4 INSTALLATION..........6 INITIAL SYSTEM CHECK-OUT......8 SYSTEM OPERATION........10 TRANSMIT MICROPHONE GAIN ADJUSTMENTS....11 FM RADIO INTERFACE CABLE WIRING......13 SPECIFICATIONS........15 WARRANTY..........15... -
Page 3: Introduction
SIGTRONICS PORTABLE COMMUNICATIONS CONTROLLER Model SPCC-2 INTRODUCTION The Sigtronics Portable Communications Controller (SPCC) provides a pilot/observer "mission team" with the ability to transmit and receive on multiple transceivers simultaneously; talk to each other via a voice activated (VOX) intercom; and monitor a third audio source. -
Page 4: Technical Highlights
TECHNICAL HIGHLIGHTS which make the SPCC unbeatable are: Fail-Safe Bypass Switch allows the pilot to operate the aircraft radios even if the unit is turned off. Automatic Sidetone Generation lets the pilot and copilot hear what the other is transmitting over the radios. Separate Transmitter Microphone Gain Adjustments adjust the aircraft radio and the FM radio. -
Page 5: Connection Drawing (Figure 1)
FIGURE 1... -
Page 6: Control Functions
CONTROL FUNCTIONS AUX/OFF - Auxiliary Select - Turns the ON/BYPASS - Power Switch - In "ON" auxiliary input source on or off. position; supplies power to all SPCC circuits. In "BYPASS" position; disables REC VOL - Receive Volume - A general all unit functions, and connects pilot control used to set the volume level of directly to the aircraft radios. - Page 7 NOTES...
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Page 8: Installation
(optional), the push-to-talk switches, and the headsets must all be connected for the system to work as designed. But do not fear, Sigtronics has simplified the connection process, so it will just take a few moments. Refer to the SPCC connection drawing Figure 1 on page 3. - Page 9 Headset Hookup: All standard general aviation headsets are compatible with the SPCC unit. Helicopter type headsets can also be used if adapter cables are used. (Sigtronics manufactures cables that adapt the helicopter plugs to general aviation plugs).
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Page 10: Initial System Check-Out
INITIAL SYSTEM CHECK-OUT The following System Check-Out will provide you with a "personalized" system. Perform the next few steps while on the ground to assure that all functions on the unit and radios are set to your personal hearing and speaking comfort. CAUTION - As is standard practice with all aircraft equipment, be sure that the radio(s) and the SPCC are turned OFF when you start up the aircraft engine. - Page 11 Radio Selection of both the aircraft and the FM radios is provided by two switches. XMIT SELECT determines the radio you wish to transmit AUTO/OFF/BOTH selects which radios you receive in your headset. "AUTO" position allows you to hear the radio that the XMIT SELECT switch is set to.
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Page 12: System Operation
SYSTEM OPERATION Once the radios are selected, pilot or observer can transmit at any time simply by pressing their PTT switch. When one position transmits, several things take place automatically to the transmitting side of the SPCC: • The intercom between the two positions is turned off. •... -
Page 13: Transmit Microphone Gain Adjustments
TRANSMIT MICROPHONE GAIN ADJUSTMENTS Transmit microphone gain adjustments for both the FM and the aircraft radios are provided through two small holes on the top of the SPCC unit. These adjustments set the microphone audio level going to the radios during transmit. Adjustment should be made only if the outgoing radio transmissions are reported as weak or garbled. - Page 14 The A/C Radio Mic Gain Adjustment is located to the left of the FM radio interface connector. Again, the A/C Mic Gain Adjustment, in most cases, will not have to be changed from its original factory setting. If however, your aircraft radio transmissions through the SPCC are reported as weak or garbled, you will need to reset this level.
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Page 15: Fm Radio Interface Cable Wiring
SPCC. Of course, Sigtronics can build a FM interface cable for you to your specifications, if desired. Figure 3 shows the most common of such cables with its "high level mic input"... -
Page 16: Specifications
FIGURE 3 FIGURE 4 FIGURE 5 SPCC SPECIFICATIONS... -
Page 17: Warranty
3.75 x 6.25 x 2.5 inches A/C Interface Cord length: 4 feet each WARRANTY Every Sigtronics' Product has been carefully inspected before shipment. We guarantee to correct any defect caused by faulty material or workmanship free of charge to the user who originally purchased the product per the enclosed warranty card.
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