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Sigtronics Sport 200 Installation and Operating Instructions

The Sigtronics Sport 200 is a voice actuated intercom with “transmit through

the aircraft radio capability” using your push-to-talk switch. Three controls are

provided:

Power Switch — Turns unit on and off.

Volume Control — Controls the intercom volume.

Squelch Control — Allows the setting of voice actuated (VOX) operation of the

intercom for variations in background noise levels and differences in headset

microphones.

OPERATING INSTRUCTIONS

I. INTERCOM MODE

A. Put on headset/s and position the boom mic close to the mouth, as is the

practice with a hand-held mic. Voice clarity is best when mic is at one side

of the mouth and 1/4” from the lips.

B. Set audio panel to “Headphone” position, if applicable.

C. Turn power “on” and set Volume Control to a low level. (1/4th to 1/3rd open

for best signal to noise ratio).

D. To adjust the intercom SQuelch for voice activated operation (VOX), it is helpful

to have some background noise present. Turn intercom SQuelch control all

the way counter-clockwise. Now, without speaking, rotate the SQuelch control

clockwise until you hear the background noise in your headset. Next, rotate

it counter-clockwise a small amount and wait (approximately 1 second) until

the background noise disappears. Finally, make small adjustments until

your voice triggers the unit at comfortable speaking levels. This procedure is

necessary because the squelch is a “Fast-on, Slow-off” system.

For applications where voice activated (VOX) intercom operation is not

desired, see PUSH-TO-INTERCOM INSTRUCTIONS.

Once set, the intercom stays silent until someone speaks in their headset

microphone (mic). Then it instantly turns on and relays the conversation. After

about a second of no conversation, the intercom goes silent again.

Minor readjustment of the SQuelch may be necessary if the background noise

level changes significantly (such as from taxi to take-off power conditions).

II. RADIO TRANSMIT MODE — Transmitting from both pilot and co-pilot positions

is possible on a one-at-a-time basis. The transmitting mic disables the other mic.

When you are ready to talk to ATC, depress the transmit switch on your yoke and

your voice is automatically transmitted via the aircraft radio. (You will hear your

own voice when transmitting via the aircraft radio side-tone return, If the radio

does not have side-tone, then you will not hear your voice). (See SIDETONE

MODIFICATION sheet to modify the intercom to simulate side-tone).

III. RADIO MONITORING — Radio monitoring is automatic. The radio monitor

circuit is always active; even with intercom power switch “off”.

IV. SOLO FLIGHTS — Since the intercom is not needed during solo flights, it may

be turned off. The pilot will still hear the aircraft radio, since this circuit is always

active, and the pilot may transmit to ATC via his push-to-talk switch. (Co-pilot

position cannot transmit when intercom is off).

V. BACK-UP — If a problem is suspected in the intercom, simply turn it off. You will

still receive the aircraft radio and will be able to transmit from the pilot’s position.

The hand mic may also be used, however, the intercom should be turned off

and you should unplug your boom mic from the mic jack. (Leave headphone

plugged in for radio reception).

CHASSIS INSTALLATION

The Sigtronics Sport 200 has been designed to mount either horizontally or

vertically in your aircraft panel. All necessary mounting hardware has been supplied

for a 2-way installation. (A round faceplate is also available from Sigtronics to fit a

2 1/4” round instrument hole).

HARDWARE SUPPLIED

• Headphone Output Jacks — Accept standard .250” aircraft headphone

plugs ............................................................................................................2

• Microphone Input Jacks — Accept standard .206” aircraft microphone

plugs (i.e. amplified dynamic or electret). (U93 plug compatible jacks

can be used in place of the jacks provided).................................................2

• Mic Jack Insulating Washers: ........................................(2) shoulder, (2) flat

• Panel: Lettered on both sides ......................................................................1

• Control Knobs ..............................................................................................2

• Switch Nut ....................................................................................................1

• 4-40 Screws .................................................................................................2

• Template: Hole size pattern for drilling aircraft panel ...................................1

• Aircraft / Intercom interface cable (4 feet long) ............................................1

The location selected requires a minimum front panel area of 2-1/2” by

1-1/16”. Depth required behind panel is 4-3/16” plus cable access.

Caution: Move aircraft flight controls through limits of travel while observing

selected area to make sure rear of intercom and cable will not interfere with

aircraft control components.

PANEL PREPARATION:

1. Position adhesive template on aircraft panel in selected area.

2. Center punch each hole at cross lines. (The five holes are in straight line and

equally spaced 0.4” apart.)

3. Drill 1/8” pilot hole all five places.

4. Enlarge holes to 1/4” and 3/8” per template.

MOUNTING CHASSIS: See Figure 2.

1. Remove nut from Sport 200 ON-OFF switch bushing.

2. Remove knobs from Volume and Squelch controls. NOTE: DO NOT REMOVE

NUTS from Volume and Squelch control potentiometers.

3. Remove two 4-40 panel screws and remove panel from Sport 200 chassis.

4. Insert Sport 200 from rear of aircraft panel with appropriate arrow pointing

upwards.

5. Install panel and lightly thread nut on to ON-OFF switch. Nuts and washers on

Volume and Squelch controls should fit inside the 3/8” diameter holes.

6. Select two 4-40 screws through holes in intercom panel. Tighten ON-OFF switch

nut.

7. Install knobs on Volume (VOL) and Squelch (SQ) control shafts using .050” Allen

wrench.

continued

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Figure 2

Figure 3

Microphone Jack

Figure 1

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Page 1 - Figure 1

Sigtronics Sport 200 Installation and Operating InstructionsThe Sigtronics Sport 200 is a voice actuated intercom with “transmit through the aircraft

Page 2 - 1-12-2007 Sport200_INS.pdf

MOUNTING HEADPHONE AND MICROPHONE JACKS:1. Select mounting areas. (One mic and one headphone jack for each headset). Again, make sure the jacks will

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Sigtronics Sport 200 Manuel d'utilisateur

Naviguer en ligne ou télécharger Manuel d'utilisateur pour Accessoires de communication Sigtronics Sport 200. Sigtronics Sport 200 User Manual [en] [pl] [cs] Manuel d'utilisatio

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