Lectrosonics SRA Instruction Manual Download Page 26

SRa5P and SRa Dual Receivers

LECTROSONICS, INC.

26

Operating Frequencies (MHz):
 

Block 470 

470.100 - 495.600

 

Block 19 

486.400 - 511.900

 

Block 20 

512.000 - 537.500

 

Block 21  

537.600 - 563.100

 

Block 22  

563.200 - 588.700

 

Block 23  

588.800 - 607.900 and 614.100 - 614.300

 

Block 24  

614.400 - 639.900

 

Block 25  

640.000 - 665.500

 

Block 26  

665.600 - 691.100

 

Block 27  

691.200 - 716.700

 

Block 28  

716.800 - 742.300

 

Block 29  

742.400 - 767.900

 

Block 944 

944.100 - 951.900

 

(Frequency usage varies by country)

Frequency Adjustment Range: 

25.5 MHz in 100kHz steps

Channel Separation: 

100 kHz

Receiver Type: 

Dual conversion, 

  

superheterodyne

IF Frequencies: 

Ch.1:  243.950 MHz and 250.000 kHz 

 

 

Ch. 2:  248.450 MHz and 350.000 kHz

Frequency Stability: 

±0.001 %

Front end bandwidth: 

26 MHz @ -3 dB

Sensitivity      
 

20 dB SINAD: 

2 uV (-101 dBm), A weighted 

 

60 dB Quieting: 

4 uV (-95 dBm), A weighted 

 

(Single antenna measurement)

Squelch quieting: 

Greater than 100 dB typical

AM rejection: 

Greater than 60 dB, 4 uV to 1 Volt

Modulation acceptance: 

85 kHz      

Image and spurious rejection: 

85 dB

Third order intercept: 

0 dBm

Diversity method: 

SmartDiversityTM phased antenna 

 

 

combining or Ratio Diversity using both  

 

 

 

receivers for a single audio channel

FM Detector: 

Digital Pulse Counting Detector operating  

 

 

at 250 and 350 kHz

RF spectrum analyzer:  

Coarse and fine scanning modes for 

 

 

 

RF spectrum site survey

Antenna inputs: 

Two flexible steel removable whips

Audio outputs connectors: 

•  Interchangeable D connector adapters for

 

 

 

  camera slot interfaces 

 

 

•  Dual TA3 male (mini XLR) balanced

 

 

 

  output adapter 

 

 

•  Balanced output adapter with fixed cables

 

Specifications and Features

Front panel audio output: 

Front panel TA5M with two balanced outputs

Audio output level: 

Adjustable -50 to +5 dBu in 1 dB steps; 

 

 

unbalanced output is 6 dB lower

Audio channel crosstalk: 

-80 dB or better

Front Panel Controls and Indicators: 

 

 

•  Sealed panel with membrane switches

 

 

 

•  LCD monitors pilot tone; antenna phase,

 

 

 

  receiver battery level; transmitter battery 

 

 

  status; audio level, RF level

Audio test tone: 

1 kHz, -50 dBu to +5 dBu output (bal); 

 

 

1% THD

Transmitter battery type Selection: 

9V alkaline, 9V lithium, AA alkaline,  

 

 

AA lithium, NiMH

Phase invert: 

Audio output phase normal or inverted

SmartNR (noise reduction): 

OFF, NORMAL, FULL modes 

 

 

 

(available in 400 Series mode only)

Audio Performance (overall system):  (These specs apply to hybrid mode only) 
 

Frequency Response: 

32 Hz to 20 kHz (+/- 1dB) 

 

THD: 

0.3% (system) typical in 400 mode 

 

Signal to Noise Ratio (dB): 

95 dB or better (overall system, 

 

 

400 Series mode) 

 

Total Harmonic Distortion: 

0.2% typical (400 Series mode) 

 

Input Dynamic Range: 

95 dB (with full Tx limiting)

Rear Panel Controls and features: 

•  XLR audio output jack; 

 

 

 

•  External DC input; 

 

 

 

•  Battery compartment access

Powering and current consumption:  Min. 6 V to max. 18 Volts DC; 1.4 W

 

 

 

•  80 mA at 18 VDC

 

 

 

•  115 mA at 12 VDC

 

 

 

•  180 mA at 7.2 VDC

 

 

 

•  200 mA at 6 VDC

Runtime with SRBATTSLED adapter: 7.2V, 2200mA “L” style battery will typically

 

 

 

provide about 11 hours of operation

Transmitter battery level tracking: 

LCD display with “bottle” icon and timer

 

  

readout

Operating temperature: 

-40° C to +75°C

LCD visible temperature range: 

-25° C to +75° C

Weight: 

195 grams (7 ozs.) with SRaEXT adapter

Dimensions: 

2.68” wide x .72” high x 3.52” deep

 

 

 

(68 mm x 18 mm x 89 mm)

Specifications subject to change without notice

FCC Notice

NOTE:  This equipment has been tested and found to 

comply with the limits for a Class B digital device, pur

-

suant to Part 15 of the FCC Rules. These limits are de

-

signed to provide reasonable protection against harmful 
interference in a residential installation. The equipment 
generates, uses and can radiate radio frequency energy 
and, if not installed and used in accordance with the 
instructions, may cause harmful interference to radio 
communications. However, there is no guarantee that 
interference will not occur in a particular installation. 

If this equipment does cause harmful interference to 

radio or television reception, which can be determined 
by turning the equipment off and on, the user is encour-
aged to try to correct the interference by one or more of 
the following measures:

•  Reorient or relocate the receiving antenna
•  Increase the separation between the equipment 

and receiver

•  Connect the equipment into an outlet on a circuit 

different from that which the receiver is connected

•  Consult the dealer or an experienced radio/TV tech

-

nician for help

Changes or modifications to this equipment not ex

-

pressly approved by Lectrosonics, Inc. could void the 

user’s authority to operate it.

Summary of Contents for SRA

Page 1: ...al UHF Receiver Featuring Digital Hybrid Wireless Technology INSTRUCTION MANUAL Rio Rancho NM USA www lectrosonics com Fill in for your records Serial Number Purchase Date U S Patent 7 225 135 See Quick Start Summary on page 3 ...

Page 2: ...SRa5P and SRa Dual Receivers LECTROSONICS INC 2 ...

Page 3: ...g the receiver Install either stand alone or camera slot adapter kit the antennas and position the receiver as it will be used see pages 9 12 Connect power to the receiver see pages 10 11 Set the COMPAT compatibility mode for the trans mitters to be used see pages 15 16 Find clear operating frequencies for one or both receivers see pages 19 21 NOTE When operating in the 2 channel mode always set R...

Page 4: ...Buttons 8 Rear Panel and Adapters 8 Camera Slot Adapters 9 Installing Camera Slot Adapters 9 Adapters for Stand alone Use 10 Installing Rear Panel Adapters 10 Battery Adapter 10 Audio Output Cables 11 External Power Cables 11 External Power Supply 11 Mounting and Orientation 12 Main Window LCD 13 LCD Backlight Setup 14 Navigating the LCD 15 Main Window 16 Frequency Screen 16 Setup Screens 16 Front...

Page 5: ... making the receiver perfectly suited to the rough environmental conditions found in field produc tion The front panel features a menu driven LCD interface and four membrane switches used to view and alter set tings Audio outputs are provided on the rear panel for camera slots or other audio devices and in the case of the SRa5P on the front panel through a 5 pin TA Series connector A built in spec...

Page 6: ... occur when the power is turned on or off The pilot tone frequency is different for each of the 256 frequencies in the tuning range of a system frequency block This eliminates squelch problems in multichannel systems where a pilot tone signal can appear in the wrong receiver via intermodulation products The DSP generated pilot tone also eliminates fragile crystals allowing the receiver to survive ...

Page 7: ...on on RF signal strength Perfor mance of the two systems is virtually identical but the noise based system requires no calibration and there is no better way to track the signal to noise ratio than to measure it directly RF Controlled Digital Noise Filter In extremely weak signal conditions an RF sensitive variable frequency filter is applied to reduce the high frequency response of the receiver T...

Page 8: ...ower off It also functions as a back button while navi gating the various menus and setup screens to return to the previous screen or menu item The firmware remembers whether the receiver was turned on or off after power is disconnected and it returns to that state when power is restored This allows the receiver to power up and down as the camera is turned on and off Press the PWR BACK button from...

Page 9: ...em with the tabs on the adapter Slide the adapter up and tighten the retaining screws to secure it to the receiver flange The four lower screws attach to the camera body SRSNY Adapter Two different types of screws are used to attach the receiver flange and the adapter Thread the smaller thin head screws through the adapter and into the camera body Upper screws with thicker heads secure the receive...

Page 10: ...or use in por table bag systems Two balanced output cables and the power cable are 6 feet long Cut the cables to the desired length and terminate as needed Battery Adapter The receiver can be powered with an optional battery sled adapter that attaches to the outside of the housing Lec trosonics Model SRBATTSLED The adapter includes an inte grated connector plate and accepts L and M type video came...

Page 11: ... long TA3 female to XLR male 3 pin for balanced output PIN 1 Shield PIN 2 Audio PIN 3 Audio MCSRTRS Male 3 5 mm TRS plug to two female TA3 mini XLR connectors for dual channel use External Power Supply The CH20 power supply with a locking LZR power jack 110 VAC input 12V DC regulated output 400 mA max External Power Cables 21747 Locking LZR style plug to stripped and tinned 6 feet long 21746 Locki...

Page 12: ...in horizontal and vertical positions using the mounting foot SRSLEEVE Mount An optional mounting sleeve is available to simplify mounting the receiver on camera body battery brack ets and other locations The sleeve is furnished with a hook loop Velcro swatch for mounting on flat surfaces SRHARDWARE Cold Foot Adapter This hardware and adapter kit allows the SRSLEEVE to be mounted on a cold shoe A r...

Page 13: ...3 200 588 700 Red 4 48 23 588 800 614 300 Orange 4 24 24 614 400 639 900 Yellow 4 01 25 640 000 665 500 Green 3 81 26 665 600 691 100 Blue 3 62 Whip Antennas Lectrosonics AMM Series UHF transmitter antennas follow the color code specifications in the chart below to identify operating frequency block range The frequen cy block range is engraved on the outside housing for each individual transmitter...

Page 14: ...p Jointed Whip Antennas The AMJ antenna is a general purpose design for any Lectrosonics receiver or transmitter with a standard SMA connector The hinged joint pivots in both direc tions for positioning the whip at any desired angle 470 470 100 495 600 Black w Label 5 56 141 2 mm 19 486 400 511 900 Black w Label 5 27 133 9 mm 20 512 000 537 500 Black w Label 4 93 125 2 mm 21 537 600 563 100 Brown ...

Page 15: ... mode and the other when RATIO DIVERSITY is selected The icon changes in size horizontally to indicate the audio level modulation of the signal received from the transmitter The icon display will change to a solid rectangular block when the audio signal is being limited in the transmitter Battery Levels When the COMPAT mode is set for a compatibility mode that supports battery telemetry 400 and 20...

Page 16: ...SmtNR SETUP PHASE SETUP TXBAT SETUP MIXMODE SETUP TONE SETUP SEL BACK PHASE PHASE RECEIVER 1 RECEIVER 2 Press UP DOWN to select Press SEL to select receiver SEL BACK TXBAT TXBAT RECEIVER 1 RECEIVER 2 Press UP DOWN to select Press SEL to select receiver SEL BACK MIXMODE Press UP DOWN to select SEL BACK TONE RECEIVER 1 RECEIVER 2 Press UP DOWN to select Press SEL to select receiver 00 05 Tone will b...

Page 17: ...tup SEL to select the next item LEVEL This setup screen displays the audio output level of the receiver in dBu Use the SEL Up or Down buttons to change the level Range is from 50 to 5 dBu in 1 dB steps Press the SEL button to leave this screen The output levels at the two jacks may be set indepen dently regardless of the diversity mode setting SCAN This function provides a fast and reliable method...

Page 18: ...is not included in the group letter will blink in this case SmtNR This setup screen is available only in the 400 Series COMPAT compatibility mode Select the desired mode while listening to the audio to of one of three choices OFF provides no noise reduction for complete transparency which is useful in controlled environ ments with very little high frequency noise such as an indoor motion picture p...

Page 19: ...VER 2 TONE 00 05 Once the button is pressed a 1 kHz tone is enabled and its level can be adjusted with additional presses on the UP or DOWN buttons The level set here will be retained in the regular oper ating 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 exit the test tone screen and stop ...

Page 20: ... by the cursor are shown in the upper right corner of the screen Scanning for Clear Frequencies Press both the UP and DOWN buttons at the same time to switch to the Zoom View In this view the cursor remains fixed in the center of the screen and the back ground scrolls behind it The frequency can be stepped up and down in 100 kHz increments using the UP and DOWN arrow buttons To clear the scan memo...

Page 21: ...6 569 300 3 D tv30 594 900 3 D tv34 473 300 2 0 TV14 498 900 7 D TV18 524 500 7 D TV23 550 100 7 D tv27 575 700 7 D tv31 601 300 7 D tv35 475 500 3 6 TV14 501 100 9 3 TV19 526 700 9 3 TV23 552 300 9 3 tv27 577 900 9 3 tv31 603 500 9 3 tv36 476 200 3 D TV15 501 800 9 A TV19 527 400 9 A TV23 553 000 9 A tv27 578 600 9 A tv32 604 200 9 A tv36 Grp B 477 500 4 A TV15 503 100 A 7 TV19 528 700 A 7 TV23 5...

Page 22: ...2 666 100 0 5 tv46 691 700 0 5 tv50 717 300 0 5 tv55 742 900 0 5 tv59 615 500 0 B tv38 641 100 0 B tv42 666 700 0 B tv46 692 300 0 B tv51 717 900 0 B tv55 743 500 0 B tv59 616 400 1 4 tv38 642 000 1 4 tv42 667 600 1 4 tv46 693 200 1 4 tv51 718 800 1 4 tv55 744 400 1 4 tv59 617 000 1 A tv38 642 600 1 A tv42 668 200 1 A tv47 693 800 1 A tv51 719 400 1 A tv55 745 000 1 A tv59 618 300 2 7 tv38 643 900...

Page 23: ...s on the previous pages address in system compatibility but obviously do not take into account RF signals from external sources that may be present in the location where the system will be operating Using the scanning process with the RF spectrum analyzer will identify external RF signals but it does not address the compatibility of the selected frequencies It is always good practice to go through...

Page 24: ...hing when transmitter turned on Pilot tone detection can take several seconds Turn on the transmitter power and the audio switch on some models and wait 3 to 5 seconds for the P to indicate steadily Transmitter and receiver not on same frequency Receiver compatibility mode does not match the transmitter in use See SEL Selections from Main Window COMPAT Window Noise on audio and Pilot Tone Indicato...

Page 25: ...noise remains then turn the power off at 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 turned off try lowering the audio output level on the SRa5P and see if the noise lowers correspondingly If the noise remains the problem is not in the receiver Receiver output is too low for the inp...

Page 26: ...o output phase normal or inverted SmartNR noise reduction OFF NORMAL FULL modes available in 400 Series mode only Audio Performance overall system These specs apply to hybrid mode only Frequency Response 32 Hz to 20 kHz 1dB THD 0 3 system typical in 400 mode Signal to Noise Ratio dB 95 dB or better overall system 400 Series mode Total Harmonic Distortion 0 2 typical 400 Series mode Input Dynamic R...

Page 27: ...epairs Returning 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 nature of the problem the model number and the serial number of the equipment We also need a phone number where you can be reached 8 A M to 4 P M U S Mountain Standard Time B After receiving your...

Page 28: ...thorized 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 Inc and the entire remedy of the purchaser for any breach of warranty as outlined above NEITHER LECTROSONICS INC NOR ANYONE INVOLVED IN THE PRODUCTION OR DELIVERY OF THE EQUIPMENT SHALL BE LIABLE FO...

Reviews: