Samson VHF Micro TRUE DIVERSITY WIRELESS User Manual

OWNERS MANUAL

Micro

TRUE DIVERSITY

WIRELESS SYSTEM

Printed December 1998 Samson Technologies Corp.

575 Underhill Blvd. P.O. Box 9031 Syosset, NY 11791-9031 Phone: 1-800-3-SAMSON (1-800-372-6766) Fax: 516-364-3888

ENGLISH

Introduction / System Features 3 Guided Tour - VM1 Receiver and Frequency Conversion Chart 5 Guided Tour - VT3L Beltpack Transmitter 7 Guided Tour - VH3 Handheld Microphone Transmitter 9 Setting Up and Using the VM1 System 10 Appendix A: VT3L Multipin Wiring Guide and Chart 43 Specifications 44

FRANCAIS

Introduction / Caractéristiques du Système 13 Visite guidée - VM1 15

Tableau de conversion de fréquence 16

Visite guidée - VT3L 17 Visite guidée - VH3 19 Paramétrage et utilisation du système VM1 20 Appendix A: VT3L Guide de Cablage 43 Spécifications 44

DEUTSCHE

Einleitung / Eigenschaften 23 Bedienelemente - VM1 25

Frequenzzuordnung der Empfangskanäle 26

Bedienelemente - VT3L 27 Bedienelemente - VH3 29

Aufbau und Betrieb des VM1 30

Anhang A VT3L Pinbelegung 43 Technische Daten 44

ESPANOL

Introducción / Características del sistema 33

Recorrido guiado - VM1 35

Tabla de conversión de frecuencias 36

Recorrido guiado - VT3L 37 Recorrido guiado - VH3 39

Ajuste y utilización de su sistema VM1 40

Apéndice A: Tabla y guía de cableado de conector multipuntas VT3L 43 Especificaciones 44

Introduction / System Features

Congratulations on purchasing the Samson VM1 micro diversity receiver—part of our renowned VHF TD Series Wireless System! Although this product is designed for easy operation, we suggest you first take some time to go through these pages so you can fully understand how we’ve implemented a number of unique features.

Every wireless system consists of at least two components—a transmitter and a receiver, both of which must be tuned to the same channel (that is, the same radio frequency) in order to operate correctly.* The Samson VM1 system you have purchased operates in the 173.8 - 213.2 MHz frequency range and contains a VM1 micro diversity receiver and one of our VHF TD Series transmitters: either a VT3L belt-pack transmitter (for lavalier microphone or headset applications) or a VH3 hand-held microphone transmitter (available in a wide variety of popular capsules).

The VM1 system is specially designed to enable the production of professional audio tracks to accompany your video shoot or live broadcast. The use of a handheld mic transmitter or lavalier microphone connected to a beltpack transmitter effectively isolates the performer from unwanted ambient sounds such as video camera motor noise or room sounds made by the camera operator or video crew. Because the VM1 receiver is extremely small and lightweight, it can be attached easily to any video camera using the supplied strip of velcro, and can even be powered directly by the camera’s own 12-volt power supply, if available.

In this manual, you’ll find a more detailed description of the features of the VM1 system, as well as a guided tour through all components, step-by-step instructions for setting up your system, wiring diagrams and tables, and full specifications. If your VM1 system was purchased in the United States, you’ll also find a warranty card enclosed—don’t forget to fill it out and mail it! This will enable you to receive online technical support and will allow us to send you updated information about this and other Samson products in the future. If your VM1 system was purchased outside of the U. S., contact your local distributor for warranty details.

SPECIAL NOTE for U.S. purchasers: Should your VM1 system ever require servicing, a

Return Authorization number (RA) is necessary. Without this number, the unit will not be accepted. If your VM1 system was purchased in the United States, please call Samson at 1-800-372-6766 for a Return Authorization number prior to shipping your unit. If possible, return the unit in its original carton and packing materials. If your VM1 system was purchased outside of the U. S., contact your local distributor for servicing information.

* Your receiver and transmitter have been factory preset to utilize the same channel. A listing of the six available channels and their corresponding VHF frequencies can be found on page 4 of this manual.

System Features

Designed for use in both live sound and sound contracting applications, the Samson VM1 system provides a high performance, cost effective solution, utilizing state-of-the-art technology in wireless communications. Main features include:

•Six different available channels, all operating in the VHF bandwidth, and all designed for simultaneous use. This means that you can use multiple VM1 systems (each tuned to a different channel) in the same location without interference.

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System Features

•Optimized for use in videography applications, the VM1 system is highly customizable, combining a VHF “walkaround” receiver with your choice of Samson VHF TD Series beltpack or handheld microphone transmitters.

•Using the supplied velcro strip, the compact, lightweight VM1 receiver can be easily attached to any video camera and can even derive 12 volt power from the camera (if available), making it easy to integrate into any traveling or fixed installation video system.

•The VM1 micro diversity receiver includes a pair of tuned antennas and provides both a standard unbalanced output (with a three-position output level switch) and a dedicated headphone monitor output with continuously adjustable level control. The receiver also includes an audio peak LED, dual antenna indicators, and an RF strength meter.

•All components use standard 9-volt batteries, with battery life of more than 6 hours,* and feature a convenient three-segment multicolor Battery Strength LED meter (which in the VM1 can also be used as an RF level meter), allowing you to monitor the remaining power in the installed battery.

•True Diversity technology maximizes active range (up to 300 feet) and reduces potential interference problems through automatic switching between two independent antennas.

•Built-in companding noise reduction in all components for crystal-clear sound with minimized background noise and hiss.

•Transmitters provide “popless” muting, which turns off the audio signal while leaving the carrier signal on.

•Incredibly compact “beeper-sized” VT3L belt-pack transmitters is extremely lightweight (less than 4 ounces with a 9-volt battery installed) and provides a Switchcraft TB3M mini-XLR jack for connection to a variety of popular headsets and lavalier microphones, including:

Samson QE headset Samson QV headset

AKG C-410 headset Audio-Technica

ATM-75 headset Audio-Technica MT-350 lavalier Audio-Technica Pro-35X wind microphone Audio-Technica AT-831 lavalier Countryman

IsoMax headset Crown CM-311(E) headset Samson ECM-40 lavalier Sennheiser MKE-2 lavalier Sony

ECM-44 lavalier Sony ECM-55 lavalier Sony ECM-77 lavalier

•The VH3 hand-held microphone transmitter is available in a selection of popular mic capsules, including:

Samson QMIC dynamic

Electro Voice ND 757A N/DYM dynamic Electro Voice

ND 857A N/DYM dynamic

* Typical usage. Actual battery life in the VM1 may vary depending upon headphone and

metering usage and headphone output level.

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Guided Tour - VM1

1: A/B Antenna LEDs - When signal is being received, one of these will be lit orange, showing you whether the (left) “A” or (right) “B” antenna is currently being used. The VM1 constantly scans its two antennas and automatically selects whichever is receiving the strongest, clearest signal. This

True

Diversity switching is completely inaudible,

but it effectively increases overall range while virtually eliminating potential interference and phase cancellation problems.

2: Meter - This set of three multicolor LEDs acts as a meter, indicating either battery power or the strength of the incoming RF signal. This meter can also be disabled altogether to conserve battery power. See #14 on the next page for more information.

3: Peak LED - This LED lights red when output signal from the VM1 is at the onset of clipping (that is, when it is on the verge of being distorted). If you see this light during operation, move the microphone further away or lower the output level of your instrument or transmitter. For more information, see the section entitled “Setting Up and Using the VM1 System” on page 8 in this manual.

4: Power switch - Use this to turn the VM1 power on and off.

5: SQ (Squelch) Level control - This control determines the maximum range of the VM1 before audio signal dropout. Although it can be adjusted using the supplied plastic screwdriver, it should normally be left at its factory setting. See the “Setting Up and Using the VM1 System” section on page 8 in this manual for more information.

6: Battery holder - Insert a standard 9-volt alkaline battery here, being sure to observe the plus and minus polarity markings shown. We recommend the Duracell MN 1604 type battery. Although rechargeable Ni-Cad batteries can be used, they do not supply adequate current for more than two hours. WARNING: Do not insert the battery backwards; doing so can cause severe damage to the VM1 and will void your warranty.

7: Plastic screwdriver - Specially designed for use in adjusting the VM1 Squelch Level control (see #4 above). See the “Setting Up and Using the VM1 System” section on page 8 in this manual for more information.

8: Antennas (A and B) - The antenna mountings allow full rotation for optimum placement. In normal operation, both antennas should be placed in a vertical position. Both antennas can be folded inward for convenience when transporting the VM1. See the “Setting Up and Using the VM1” section on page 8 in this manual for more information.

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2 3 1

VHF MICRO DIVERSITY RECEIVER

LOW MID HIGH PEAK

VM1

SAMSON

MAX

MIN

SQ LEVEL

POWER

SAMSON

Guided Tour - VM1

9: DC input - This jack will accept a DC input voltage of 11 - 14 volts (inner connection [tip] positive, outer connection [sleeve] ground) from your video camera, if available. Connect the optional Samson AC300R adapter here to charge a rechargeable 9-volt Ni-Cad battery.

10: Unbalanced output - Use this unbalanced 1/8" (3.5 mm) mini-phone jack to connect the VM1 to your audio equipment. Wiring is as follows: tip hot, sleeve ground. If your video camera has stereo audio inputs, you’ll need to use a Y-adapter that has a 1/8" (3.5 mm) mini-phone plug at one end and dual male RCA-type plugs at the other end.

11: Audio Output Level switch - Sets the audio output level of the unbalanced output (see #10 above) to -30 dBv (mic level), -20 dBv, or -10 dBv (line level). See the “Setting Up and Using the VM1 System” section on page 8 in this manual for more information.

12: Level control - This knob sets the level of the audio signal being sent to the

headphones output (see #13 below). 13: Headphones output - Connect a

stereo headphone to this standard 1/8" (3.5 mm) mini-phone jack in order to monitor the signal being output by the VM1. We recommend the use of 30 ohm

headphones. The level of the headphone signal can be set by adjusting the Level control (see #12 above). Maximum output is 200 mW @ 30 ohms.

14: Meter switch - This three-position switch determines the function of the front-panel VM1 meter (see page #2 on previous page). In the left “BATTERY” position, the meter indicates relative battery power, showing whether the installed battery is at low (red), mid (yellow) or high (green) strength. When all three LEDs are lit, the battery is at maximum strength. When only the red “low” indicator lights, performance is degraded and the battery needs to be replaced. In the center “RF” position, the meter indicates the strength of the incoming RF signal. In the right “OFF” position, the meter is disabled altogether, thus conserving battery power.

VM1 Frequency Conversion Chart

Channel Frequency

9 199.6 MHz 11 208.2 MHz 17 174.1 MHz 18 174.5 MHz 20 177.0 MHz 25 197.4 MHz

ENGLISH

109 118

DC INPUT

OUTPUT

LEVEL

-30-20-10

SAMSON

VM1

METER

BATT.

Guided Tour - VT3L

1: Input connector - The input device is connected here. The VT3L is supplied with either a lavalier or headset microphone (connected via a Switchcraft mini-XLR jack). A wiring chart showing the connections to popular lavalier and headset microphones can be found on page 41 of this manual.

2: Battery level meter - This set of three multicolor LEDs indicates relative battery power, indicating whether the installed battery is at low (red), mid (yellow) or high (green) strength. One or more of these will light whenever the VT3L is powered on (see #5 on the next page). When all three are lit, the battery is at maximum strength. When only the red “low” indicator lights, RF performance is degraded and the battery needs to be replaced.

3: Audio on-off switch - When set to the “on” position, audio signal is transmitted. When set to the “off” position, the audio signal is muted. Because the carrier signal remains during muting, no “pop” or “thud” will be heard. Note that turning this off does not turn off the transmitter power—it is simply a way to temporarily mute the transmission of audio signal. If you don’t plan on using the transmitter for extended periods, turn off the transmitter power by using the power on-off switch (see #5 on the next page).

4: Battery door release - Press gently inwards on these two indents in order to open the battery door of the VT3L and access the Power on-off switch (see #5 on the next page) and Gain control (see #6 on the next page).

ENGLISH

AUDIO

▲

LOW MID HIGH

BATTERY

SAMSON

VT3L

VHF BELTPACK TRANSMITTER

INPUT

SAMSON

Guided Tour - VT3L

5: Power on-off switch* - Use this to turn the VT3Lon or off (to conserve battery power, be sure to leave it off when not in use).

6: Gain control (trimpot) - This input sensitivity control has been factory preset to provide optimum level for the particular lavalier or headset model being used and so we recommend that this not be adjusted manually. If necessary, however, you can use the supplied plastic screwdriver (see #8 below) to raise or lower the VT3L Gain control. See the “Setting Up and Using Your VM1 System” section on page 8 in this manual for more information.

7: Battery holder - Insert a standard 9-volt alkaline battery here, being sure to observe the plus and minus polarity markings shown. We recommend the Duracell MN 1604 type battery. Although rechargeable Ni-Cad batteries can be used, they do not supply adequate current for more than four hours. WARNING: Do not insert the battery backwards; doing so can cause severe damage to the VT3L and will void your warranty.

8: Plastic screwdriver - Specially designed for use in adjusting the VT3L Gain control (see #7 above) and/or VM1 Squelch control (see #5 on page 3 ). See the “Setting Up and Using Your VM1 System” section on page 8 in this manual for more information.

* Be sure to mute the audio signal at your external mixer or amplifier before turning transmitter power on or off, or an audible pop may result.

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VT3L

INPUT

SAMSON

GAIN

POWER

▲

SAMSON

Guided Tour - VH3

1: Audio on-off switch - When set to the “on” position, audio signal is transmitted. When set to the “off” position, the audio signal is muted. Because the carrier signal remains during muting, no “pop” or “thud” will be heard. Note that turning this off does

not turn off the transmitter power—it is simply a way to temporarily mute the transmission of audio signal. If you don’t plan on using the VH3 for extended periods, turn off its power by using the power on-off switch (see #3 below).

2: Battery level meter - This set of three multicolor LEDs indicates relative battery power, indicating whether the installed battery is at low (red), mid (yellow) or high (green) strength. One or more of these will light whenever the VH3 is powered on (see #3 below). When all three are lit, the battery is at maximum strength. When only the red “low” indicator lights, RF performance is degraded and the battery needs to be replaced.

3: Power on-off switch* - Use this to turn the VH3 on or off (to conserve battery power, be sure to leave it off when not in use).

4: Gain control (trimpot) - This input sensitivity control has been factory preset to provide optimum level for the particular microphone capsule provided with your VM1 system and so we recommend that this not be adjusted manually. If necessary, however, you can use the supplied plastic screwdriver to raise or lower the input level. See the “Setting Up and Using Your VM1 System” section on page 8 in this manual for more information.

5: Battery holder - Insert a standard 9-volt alkaline battery here, being sure to observe the plus and minus polarity markings shown. We recommend the Duracell MN 1604 type battery. Although rechargeable Ni-Cad batteries can be used, they do not supply adequate current for more than four hours.

WARNING: Do not insert the battery

backwards; doing so can cause severe damage to the VH3 and will void your warranty.

* Be sure to mute the audio signal at your external mixer or amplifier before turning transmitter power on or off, or an audible pop may result.

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AUDIO

OFF ON

LOW MID HIGH

BATTERY LEVEL

Ch9

SAMSON

MIN

MAX

OFF

POWER

LEVEL

Setting Up and Using Your VM1 System

The basic procedure for setting up and using your VM1 Wireless System takes only a few minutes:

1. For the VM1 system to work correctly, both the receiver and transmitter must be set to the same channel. Remove all packing materials (save them in case of need for future service) and check to make sure that the supplied VM1 receiver and VT3L or VH3 transmitter are set to the same channel. If these channels do not match, contact your distributor or, if purchased in the United States, Samson Technical Support at 1-800-372-6766.

2a. If you are using a 9-volt battery to power the VM1, press gently down on the battery door release (on the front of the VM1, on the word “Open”) and swing the door open in order to access the battery compartment. Note that the door is hinged and is not intended to be removed from the receiver case. Insert a 9-volt battery, being careful to observe the polarity markings.

Warning: Reversing the battery polarity may cause

permanent damage to your receiver. Turn the power switch “On” and set the Meter

switch to “BATTERY.” All three Battery meter LEDs will light if the battery is sufficiently strong. Once you’ve verified battery strength, turn the power switch “Off” again.

2b. If you are using the optional Samson AC300R adapter or your video camera’s 12-volt power supply to power the VM1, connect it to the VM1 DC input jack. On the front of the VM1, press gently down on the battery door release (on the word “Open”) and swing the door open note that the door is hinged and is not intended to be removed from the receiver case). Make sure the power switch is set to “Off.”

3a. If your system contains a VT3L belt-pack transmitter, locate the battery cover release and slide the lever down to open the battery door, which is hinged and not intended to be removed from the transmitter case. Please use care when opening this door as undue force will destroy the hinge.

3b. If your system contains a VH3 handheld transmitter, unscrew the bottom section of the microphone by turning it counterclockwise and then slide it off.

4. Place a fresh 9-volt alkaline battery in the transmitter battery holder, taking care to observe the polarity markings. If you are using a VT3L belt-pack transmitter, gently replace the battery door by swinging it up and pressing until it clicks. If you are using a VH3 handheld transmitter, replace the bottom section of the microphone by sliding it on and then screwing it back on. Whichever transmitter you are using, leave it off for the moment.

5. Next, make the physical cable connection between the unbalanced output of your VM1 receiver and the audio input of your video camera or audio amplifier or mixer, being careful to set the Audio Output Level switch so that the signal is strong but not distorting. Normally, it should be set to the “-30” position when connecting to a mic-level input and to the “-20” or “-10” position when connecting to a line-level input. Leave your amplifier (and/or mixer) off at this time.

6. Turn the power to the VM1 “On” and close the battery door.

7. Extend both “A” and “B” antennas from the VM1 and place both in a vertical position.

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Setting Up and Using Your

VM1 System

8. Turn on the power to the VT3L or VH3 transmitter; all three Battery meter LEDs will light if the battery is sufficiently strong. At this point, either the “A” or “B” orange LED on the front of the VM1 will light (depending upon which antenna is receiving the stronger signal).

9. Set the VM1 Meter switch to “RF.” One or more segments in the VM1 meter should light. If the “HIGH” segment lights, the VM1 is receiving an optimally strong RF signal and is placed and positioned correctly. If the “LOW” segment lights (indicating a relatively weak RF signal), try relocating the VM1 or changing the position of one or both of its antennas.

10. If you want to use headphones to monitor the transmission, connect a standard “Walkman”-type 30 ohm headphone to the VM1 headphone output and adjust the Level control until the desired level is reached.

11. Turn on your connected amplifier and/or mixer but keep its volume all the way down. Next, make sure that your transmitter is unmuted by setting its Audio switch to “On.” If you are using the VH3 transmitter or if you are using the VT3L transmitter with a connected lavalier microphone or headset, speak or sing into the mic at a normal performance level while slowly raising the volume of your amplifier/mixer until the desired level is reached. If you are using a VT3L beltpack transmitter equipped with a lavalier microphone, note that correct lavalier placement is critical to sound quality. We recommend that you place it as shown in the illustration on the right—as close to your mouth as possible but off to one side (to minimize nasality) and unobstructed by clothing. Bear in mind also that

omni microphones (mics which pick up signal from all directions) are more prone to feedback problems than unidirectional (cardioid or hypercardioid) ones; in general, you can avoid feedback by taking care not to use any microphone directly in front of a PA speaker (if this is unavoidable, try using an equalizer to attenuate those high- or mid-range frequencies which are causing the feedback “squealing”).

12. If you hear distortion at the desired volume level, first check to see whether the red “Peak” LED on the VM1 is lit. If it is not, make sure that the gain structure of your audio system is correctly set (consult the owners manual of your mixer and/or amplifier for details). If the red “Peak” LED

is lit, do the following:

• If you are using a VH3 transmitter, use the supplied plastic screwdriver to turn its Microphone Input Level control (trimpot) slowly counterclockwise (towards the “Min” position) until the distortion disappears.

• If you are using a VT3L transmitter with connected lavalier microphone or headset, its Audio Input Level control has been factory preset to provide optimum level for the particular lavalier or headset model being used and so no adjustment should be necessary. Any distortion present should therefore simply be a matter of the microphone being too close to the mouth; try moving it further away. If this does not solve the problem, use the supplied plastic screwdriver to turn the Audio Input Level control (trimpot) on the VT3L slowly counterclockwise until the distortion disappears.

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VT3L

SAMSON

VHF BELTPACK TRANSMITTER

INPUT

Setting Up and Using Your VM1 System

13. Conversely, if you hear a weak, noisy signal at the desired volume level, again make sure that the gain structure of your audio system is correctly set (consult the owners manual of your mixer and/or amplifier for details). If it is and the signal coming from the VM1 is still weak and/or noisy, do the following:

• If you are using a VH3 transmitter, use the supplied plastic screwdriver to turn the Level control (trimpot) on the transmitter slowly clockwise (towards the “Max” position) until the signal reaches an acceptable level.

• If you are using a VT3L transmitter with connected lavalier microphone or headset, its Level control has been factory preset to provide optimum level for the particular lavalier or headset model being used and so no adjustment should be necessary. Any weakness of signal should therefore simply be a matter of the microphone being too far from the mouth; try moving it closer. If this does not solve the problem, use the supplied plastic screwdriver to turn the Level control (trimpot) on the VT3L slowly clockwise until the signal reaches an acceptable level.

14. Temporarily turn down the level of your mixer/amplifier system and turn off the power to your transmitter, leaving the VM1 on. Then restore the previously set level of your mixer/amplifier. With the transmitter off, the receiver output should be totally silent—if it is, skip ahead to the next step. If it isn’t (that is, if you hear some noise), you may need to adjust the VM1 SQ (squelch) control, located in the battery compartment. When the SQ control is at its minimum setting, the VM1 system always provides maximum range without dropout; however, depending upon the particular environment your system is used in, you may need to reduce that range somewhat in order to eliminate band noise when the transmitter is turned off. To do so, use the provided screwdriver to rotate the SQ control completely clockwise (to the “Min” position), then slowly turn it counterclockwise until the noise disappears. If no noise is present at any position, leave it at its fully clockwise “Min” position (so as to have the greatest overall range available).

15. When first setting up the VM1 system in a new environment, it’s always a good idea to do a walkaround in order to make sure that coverage is provided for your entire performance area. Accordingly, turn on both the transmitter and VM1 receiver. If you are using a video camera, use the supplied velcro strip to attach the VM1 to the side of the camera. If not, physically place the VM1 in the position in which it will be used. Next, with the transmitter unmuted, walk through the entire area that will need to be covered while speaking, singing, or playing your instrument. As you do so, you will find that the orange “A” and “B” LEDs on the VM1 occasionally switch on or off, always showing you which antenna is receiving the stronger signal. The basic rule of thumb for all wireless audio systems is to always try to minimize the distance between transmitter and receiver as much as possible and also to try to maintain “line of sight” between the two (that is, the person using the transmitter should be able to see the receiver). Always try to minimize the distance between transmitter and receiver as much as possible so that the strongest possible signal is received from all planned transmission points.

If you have followed all the steps above and are experiencing difficulties, contact your local distributor or, if purchased in the United States, call Samson Technical Support (1-800-372-6766) between 9 AM and 5 PM EST.

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Introduction / Caractéristiques du système

Nous vous remercions de la confiance que vous nous témoignez en choisissant le récepteur Samson VM1 Micro Diversity — un produit de notre gamme renommée de systèmes sans fil VHF TD Series ! Bien que ce produit ait été conçu pour une utilisation facile, nous vous suggérons de prendre le temps de consulter les pages suivantes afin d’appréhender de manière précise les caractéristiques uniques que nous avons développées.

Chaque système sans fil comprend au moins deux éléments — un émetteur et un récepteur, qui doivent tous deux être accordés sur le même canal (c’est-à-dire sur la même fréquence radio) afin de fonctionner correctement*. Le système Samson VM1 que vous venez d’acquérir fonctionne dans la plage de fréquences 173,8 - 213,2 MHz et contient un récepteur VM1 Micro Diversity ainsi que l’un de nos émetteurs VHF TD Series : un émetteur à la ceinture VT3L (pour microphone cravate et applications casque) ou un émetteur main VH3 (disponible avec de nombreuses capsules).

Le système VM1 est spécialement conçu pour permettre la production de pistes audio professionnelles en accompagnement de vos prises vidéo ou d’une radiodiffusion Live. L’utilisation d’un micro émetteur main ou d’un microphone cravate connecté à un émetteur à la ceinture permet d’isoler l’interprète des bruits ambiants tels que les bruits de moteur de la caméra ou de l’équipe de tournage. Le récepteur VM1 étant extrêmement léger et de petite taille, il peut aisément être fixé à une caméra vidéo à l’aide de la bande velcro fournie. Il peut même être activé directement par l’alimentation 12 V de la caméra (si elle en est équipée).

Vous trouverez dans ce manuel un description plus détaillée des caractéristiques du système VM1, ainsi qu’une présentation de tous les composants, des instructions détaillées pour l’installation de votre système, des schémas et des tableaux de câblage ainsi que toutes les caractéristiques techniques. Si vous avez acheté votre système VM1 aux États-Unis, vous trouverez également une carte de garantie : n’oubliez pas de la remplir et de la renvoyer ! Elle vous permet de recevoir une aide technique en ligne et nous permet de vous envoyer des informations mises à jour sur les produits Samson. Si vous avez acheté votre système VM1 hors des États-Unis, contactez votre revendeur pour obtenir de plus amples détails concernant la garantie.

REMARQUE SPÉCIALE pour les clients des États-Unis : Dans le cas où votre système VM1 nécessite une assistance technique, vous devez disposer d’un

numéro d’autorisation

de retour (RA). Le produit ne sera pas accepté sans ce numéro. Si votre système VM1 a

été acheté aux États-Unis, veuillez appeler le numéro suivant 1-800-372-6766 afin d’obtenir un numéro d’autorisation de retour avant d’envoyer votre produit. Si possible, retournez l’unité dans son emballage original. Si votre système VM1 a été acheté hors des États-Unis, contactez votre revendeur local pour des informations concernant l’assistance technique.

* Votre récepteur et votre émetteur ont été pré-programmés en usine pour utiliser le même canal. Vous trouverez une liste des six canaux disponibles et des fréquences VHF correspondantes en page 14 de ce manuel.

Caractéristiques du système

Conçu pour des applications Live et en installations fixes, le système Samson VM1 offre une solution haute performance, à prix étudié, grâce à une technologie de pointe en matière de communications sans fil. Les principales caractéristiques sont les suivantes :

•Six canaux différents, fonctionnant tous dans la bande de fréquences VHF et tous conçus pour une utilisation simultanée. Cela signifie que vous pouvez utiliser de nombreux systèmes VM1 (chacun étant accordé sur un canal différent) dans le même lieu, sans interférences.

FRANÇAIS

Caractéristiques du système

•Optimisé pour la vidéographie, le système VM1 est peut facilement être personnalisé. Il combine un récepteur VHF portable avec les microphones main ou à la ceinture Samson VHF TD Series de votre choix.

•Grâce à la bande velcro fournie, le récepteur VM1 compact et léger peut aisément être fixé à une caméra vidéo. Il peut même être alimenté par les 12 V de la caméra (si disponible). Il est donc aisé de l’intégrer à toute installation vidéo fixe ou mobile.

•Le récepteur Micro Diversity VM1 comprend deux antennes accordées et offre une sortie standard asymétrique (avec un commutateur 3 positions pour le niveau de sortie) et une sortie spéciale casque avec un réglage continu du niveau. Le récepteur inclut également une LED indiquant les crêtes audio, deux indicateurs de antenne et un afficheur de puissance RF.

•Tous les composants utilisent des piles standards 9 V d’une autonomie de plus de 6 heures*, et présentent un afficheur trois segments à LED multicolore indiquant la puissance de la pile (qui peut également être utilisé comme afficheur de niveau RF pour le VM1), vous permettant de contrôler la puissance restante de la pile.

•La technologie True Diversity maximise la plage active (jusqu’à 100 mètres) et réduit les problèmes d’interférence éventuels grâce à un choix automatique entre deux antennes indépendants.

•Un compresseur-expanseur de réduction de bruit intégré dans tous les composants permet d’obtenir un son d’une pureté exceptionnelle - les sifflements et bruits de fond sont minimisés.

•Les émetteurs présentent un interrupteur silencieux permettant de couper le signal audio tout en conservant la porteuse.

•L’émetteur à la ceinture VT3L incroyablement compact est extrêmement léger (moins de 110 g avec la pile de 9 V). Il est équipé d’un connecteur mini-XLR TB3M Switchcraft afin de pouvoir le relier à de nombreux systèmes sur serre-tête et microphones cravate, dont :

Microphone sur serre-tête Samson QE Microphone sur serre-tête Samson QV

Microphone sur serre-tête AKG C-410 Microphone sur serre-tête Audio-Technica ATM-75 Microphone cravate Audio-Technica MT-350 Microphone spécifique pour condition venteuse Audio Technica Pro-35X Microphone cravate Audio-Technica AT-831 Microphone sur serre-tête Countryman IsoMax Microphone sur serre-tête Crown CM-311(E) Microphone cravate Samson ECM-40 Microphone cravate Sennheiser MKE-2 Microphone cravate Sony ECM-44 / 55 / 77

•L’émetteur micro main VH3 est disponible avec une sélection de capsules pour microphones, dont :

Dynamique Samson QMIC

Dynamique Electro Voice ND 757A N/DYM Dynamique Electro Voice ND 857A N/DYM

* Usage type. L’autonomie du VM1 est susceptible de varier en fonction de l’usage du

serre-tête et de l’afficheur et du niveau de sortie du serre-tête.

FRANÇAIS

+ 31 hidden pages

Samson VHF Micro TRUE DIVERSITY WIRELESS User Manual

Table of Contents

Introduction / System Features

ENGLISH

VT3L

Setting Up and Using Your VM1 System

Introduction / Caractéristiques du système