background image

SRc-941 Dual Receiver

LECTROSONICS, INC.

20

TXBAT

Select the type of battery being used in the transmitter 

to improve the accuracy of the battery monitor.

• 

9V

 - Transmitter uses a 9V alkaline battery.

• 

9VL

 - Transmitter uses a 9V lithium battery (not 

rechargeable).

• 

9VT

 - Transmitter uses a 9V battery of any type. 

Monitor its status with the timer in the LCD Main 

Window. This is the best choice when using a re-

chargeable battery in the transmitter.

• 

AA

 - Transmitter uses a AA alkaline battery.

• 

AAL

 - Transmitter uses a AA lithium battery (not 

rechargeable).

• 

AAT

 - Transmitter uses an alkaline, lithium or re-

chargeable AA battery. This is the best choice when 

using a rechargeable battery in the transmitter.

MIXTRIM and MIXMODE

When set to the SWITCHED (dual channel mode), 

special options are available to allow the audio from the 

receivers to be mixed to either one or both audio output 

channels. 
The 

MIXMODE

 setting determines which audio signal 

appears at which output channel:

• 

MIXBOTH

 mixes the audio and delivers the mix to 

both output channels.

• 

MIXTO 1

 mixes the audio and delivers the mix to 

output channel 1.

• 

MIXTO 2

 mixes the audio and delivers the mix to 

output channel 2.

• 

DIRECT

 keeps the audio separated and delivers 

receiver 1 audio to output channel 1, and receiver 2 

audio to output channel 2.

The 

MIXTRIM

 setting applies attenuation up to 20dB in 

1 dB steps to adjust the ratio of the two audio signals in 

the mix. This adjustment takes effect only when a mix 

mode is selected. If the MIXMODE is set to DIRECT, 

the MIXTRIM option will not be available.

IMPORTANT:  The output level of each receiver 

is adjusted with the LEVEL setup screen, which 

is hardware-based, so it affects the output level 

regardless of which mix mode is selected. MIXTRIM 

then applies attenuation to that level setting resulting in 

the final level delivered to the output channel. It is good 

practice to 

set the output LEVEL of both receivers 

to the same value when using a mix mode.

When a MIXMODE is selected, each audio signal is au-

tomatically attenuated by 6 dB prior to the mixing. This 

is done to avoid overload and potential distortion since 

mixing increases the level by 6 dB.

TONE

The TONE setup screen enables an audio test tone at 

the receiver output for precise level matching with other 

equipment. The first screen prompts you to press the 

UP or DOWN button to enable the tone at the receiver 

output. Press MENU/SEL to toggle between receivers.

The first screen prompts you to 

press the UP or DOWN button to 

start the tone.

RECEIVER 2

TONE?

00

+05

Once the UP or DOWN button is pressed, a 1 kHz tone 

is enabled, and its level can be adjusted with additional 

presses on the UP or DOWN buttons.

T

he level set here will be retained in the regular operat-

ing mode. 

It will supersede the setting made in the 

LEVEL setup screen.

 The test tone has 1% distortion 

and is intended for confirmation of output levels only. To 

stop the tone and exit the test tone screen, press the 

BACK button.

Front Panel Shortcuts

A convenient shortcut is available from any setup 

screen that displays the two receiver selection options 

next to each other, such as the LEVELS and STEPSIZE 

screens. Once the value has been set on one receiver, 

the same value can be copied to the other receiver with 

a simple button push combination.
Hold the MENU/SEL button and press the DOWN arrow 

to copy the value set on receiver 1 to receiver 2. Hold 

MENU/SEL and press UP to copy the value set on 

receiver 2 to receiver 1.

+05

00

00

LEVEL

LEVEL

00

Hold MENU and 

press UP arrow

NOTE:  It does not matter which receiver is selected 

(highlighted).

Содержание SRc-941

Страница 1: ...bility mode for the trans mitters to be used see page 19 Find clear operating frequencies for one or both receivers see pages 18 and 21 Set transmitters on the matching frequencies see transmitter man...

Страница 2: ...eathing problems are also greatly reduced Table of Contents General Technical Description 3 IF Amplifiers and SAW Filters 4 Digital Pulse Counting Detector 4 DSP Based Pilot Tone 4 SmartSquelch 4 Smar...

Страница 3: ...rfectly suited to the rough environmental conditions in field production The front panel features a menu driven LCD interface and four membrane switches used to view and alter set tings Audio outputs...

Страница 4: ...thin 100kHz spacing so the pilot tone is the same for all four ad jacent frequencies in each 100 kHz increment For example 959 300 959 325 959 350 and 959 375 all have the same pilot tone SmartSquelch...

Страница 5: ...noise reduction algorithm called SmartNRTM which removes hiss without sacrificing audio high frequency response SmartNRTM works by attenuating only those portions of the audio signal that fit a stati...

Страница 6: ...hat state when power is restored This allows the receiver to power up and down as the camera or external supply is turned on and off Press the PWR BACK button from the Main Window to briefly display t...

Страница 7: ...Adapter kit for Sony camera slots includes be zel hardware and rear panel DB15 connector wired for power and audio connections UniSlot is a trademark of Ikegami Tsushinki Co Ltd Ikegami is a register...

Страница 8: ...hort screws through the recessed tabs on the adapter and slide it onto the receiver housing Thread two short screws through the tabs on the receiver flange as shown On the opposite side thread two lon...

Страница 9: ...s will op erate the SR for approximately 6 hours The operat ing time will typically decrease over the useful life of a rechargeable battery Battery Adapters Battery sled adapters configure the receive...

Страница 10: ...TION DO NOT CONNECT TO A BATTERY CHARGER USE ONLY TWO SAME TYPE BATTERIES SRSLEEVE mounting adapter This sleeve is supplied with Velcro swatches for mount ing an SR Series receiver on a flat surface o...

Страница 11: ...m nut locking it in place Use a wrench to rotate the foot then tighten the jam nut to prevent the foot from rotating Clinch pressnut in bracket and sleeve Washer Jam nut Thumb nut Cold shoe foot For h...

Страница 12: ...ower supply with a standard C14 inlet and locking LZR coaxial output connector 100 240 VAC in 15 VDC regulated output 4A max External Power Cables 21747 Locking LZR style plug to stripped and tinned 6...

Страница 13: ...toward the transmitter The result of course is a weak signal entering the receiver Fig 4 depicts the worst setup where the nulls in both receiver and transmitter patterns face one another The transmit...

Страница 14: ...ral other adapters are also available for temporary or fixed installations The antenna pattern provides about 3 7 dB of gain which makes it ideal for use with a passive splitter to feed two receivers...

Страница 15: ...he icon display will change to a solid rectangular block when the audio signal is being limited in the transmitter Battery Levels A battery icon is displayed on the LCD to indicate the transmitter bat...

Страница 16: ...P TXBAT SETUP SEL BACK TXBAT TXBAT RECEIVER 1 Press UP DOWN to select Press SEL to select receiver 9V AA AA 9V DOWN TONE SETUP SEL BACK TONE RECEIVER 1 RECEIVER 2 Press UP DOWN to select Press SEL to...

Страница 17: ...s MENU SEL three times to enter the setup screens Press UP and or DOWN to scroll through the available items and press MENU SEL to enter the desired screen For those items that allow separate settings...

Страница 18: ...SYNC screen the LCD will ask about setting up the other receiver Use the UP and DOWN arrows to toggle YES NO then press MENU SEL Make sure the TX 1 transmitter is on the one just set in the previous s...

Страница 19: ...atus with the battery timer in the LCD Main Window NOTE To reset the timer set the TXBAT mode to anything other than 9VT or AAT then back to the desired mode USING THE GROUP TUNING MODES Press MENU to...

Страница 20: ...regardless of which mix mode is selected MIXTRIM then applies attenuation to that level setting resulting in the final level delivered to the output channel It is good practice to set the output LEVE...

Страница 21: ...onal signals or to accumulate higher peaks Set your transmitter s to match the corresponding receiver s CH1 or CH2 on the receiver display Turn the transmitter on and verify that a strong RF signal is...

Страница 22: ...ut obviously do not take into account RF signals from external sources that may be present in the location where the system will be operating The scanning process will identify external RF signals but...

Страница 23: ...na combining with two separate audio channels Ratio Diversity using both receivers for a single audio channel FM Detector Digital Pulse Counting Detector operating at 250 and 350 kHz RF spectrum analy...

Страница 24: ...t no sound Check audio meter first Audio output cable bad or disconnected Audio Output level too low Use the built in test tone to verify levels Pilot Tone Indicator P keeps flashing when transmitter...

Страница 25: ...emains then turn the power off on the transmitter and see if it remains If the noise is still present then the problem is not in the transmitter If noise is still present when the transmitter is turne...

Страница 26: ...turning Units for Repair For timely service please follow the steps below A DO NOT return equipment to the factory for repair without first contacting us by e mail or by phone We need to know the natu...

Страница 27: ...UHF Digital Hybrid Wireless Rio Rancho NM 27...

Страница 28: ...rized dealer shipping costs prepaid within one year from the date of purchase This Limited Warranty is governed by the laws of the State of New Mexico It states the entire liablility of Lectrosonics I...

Отзывы: