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 FM Receivers |
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FM Receivers
We provide a wide range of FM receivers for rent in the frequency range of 72Mhz and 21 MHz. The receiver translation handset in the 72 MHz range can be used to transmit 4-8 languages simultaneously in the same area, while the receivers in the 21 MHz range can transmit upto 3 languages simultaneously.
These are single channel wide band receiver translation headsets. Each receiver is pre tuned, and field adjustable by internal tuning coil. They are built in an impact-resistant case and have a belt clip for hands-free operation. They also include a 9V battery & mini-earphone.
The other specifications include:
Dimensions & Weight: 3-5/8" x 2-3/8" x 7/8" L*W*H; 3.2 oz (90 g) with battery
Operating Frequency: Pre-tuned, adjustable, 72 MHz-76 MHz *
Intermediate Frequency: 75 KHz
FM Deviation: 75 KHz wide band
Frequency Response: 100 to 10 KHz, ± 3 dB
Signal-to-Noise Ratio: 50 dB at 10 µV
AFC Range: ± 300 KHz
De-Emphasis: 75 uS
Squelch: Squelches at 10 µV for minimum 50 dB S/N ratio
Sensitivity: 2 µV at 12 dB Sinad with squelch defeated
Input Overload: 20 mV
Audio Output: 250 mW, max. at 16 Ohms
Output Connector: 3.5 mm mini phone jack, also serves as a charging jack
for rechargeable battery
Headphone: Lightweight, mono, 3.5 mm plug, 16 ½ Receiver |
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These are four channel, wide band receiver translation headsets pre-tuned to frequencies 72.1, 72.5, 72.9, and 75.7 MHz. Listeners can select the program of their choice by using the channel selector knob. Custom channel combinations are also available by special order. These receivers are field tunable. They are built into an impact resistant case and include a 9V battery and a mini-earphone. They can operate up to 32 hours with a single 9V non-rechargeable alkaline battery.
The other specifications include
Dimensions & Weight: 3-5/8" x 2-3/8" x 7/8" L*W*H; 3.2 oz (90 g) with battery
Operating Frequency: Pre-tuned, adjustable, 72 MHz-76 MHz
Intermediate Frequency: 75 KHz
FM Deviation: 75 KHz
Frequency Response: 100-10 KHz, ± 3 dB
Signal-to-Noise Ratio: 50 dB at 10 µV
AFC Range: ± 300 KHz
De-Emphasis: 75 uS
Squelch: Squelches at 10 µV for minimum50 dB S/N ratio
Sensitivity: 2 µV at 12 dB Sinad with squelch defeated
Audio Output: 250 mW, max. at 16 Ohms
Output Connector: 3.5 mm mini phone jack, also serves as a charging jack
for rechargeable battery
Channel Selector: 4-position, rotary switch |
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These wide band receiver translation headsets have six channels. The listener can use the channel selector knob to choose a program of his choice. It is completely field tunable and comes with a handy wrist strap that allows hands-free use. A red "ON" indicator light reminds listeners to turn the receiver off after use. These receivers come with a 9V battery and a mini-earphone.
These receivers can manage upto 8 channels simultaneously when used in combination with transmitters operating on 727 MHz bandwidth. They have a crystal clear audio, and are digitally synthesized controlled for rock solid tuning. Some of its other characteristics include LED power and low battery indicator, integral volume on/off control, channel selection knob and earphone jack. It can operate for upto 50 hours using 2 AA alkaline batteries. If AA rechargeable batteries are used then 12 units can be charged simultaneously with an optional multi-charger.
They can be used in Language Interpretation, Conferences, Schools, Auditoriums, Theaters, Churches etc.
Dimensions & Weight: 4.5” H x 2.85 W x 1.2” D ; 4.6 oz (130 g)
Operating Freq: 8 channels: 72.1, 72.3, 72.6, 72.8, 74.7, 75.4, 75.7, or 75.9 MHz.
Intermediate Freq: 10.7 MHz
FM Deviation: +/- 75 kHz
Frequency Response: 40 Hz to 15 kHz +/- 3 dB
Signal to Noise ratio: 60 dB at 100 uV
De-emphasis: 75 uS
Sensitivity: 2 uV at 12 dB SINAD with squelch defeated
LED Indicator: Power: Red. Low Battery: Flashes
Input Overload: 20 mV
Audio Output: 35 mW, max 16 ohm load
Output Connector: 3.5 mm mono phone jack
Squelch: Located inside battery door. Factory set for 25 dB S/N. Squelch may be set with JFD-7104-5 from Sprague Goodman or any flat tipped tuning tool with tip size .095 X .016 |
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This receiver features a unique LCD display that can be used to verify channel selection, channel lock status, RF signal strength, battery level and programming status. It is very easy for even a novice user to install and operate this receiver.
One of its unique features is programmability. Unwanted channels can be locked, and the receiver can access only channels of his choice. It is also possible to reprogramme channels to meet new application needs.
These receivers have built in charging circuits. You simply need to plug in a wall transformer to automatically recharge the batteries. It also prevents overcharging thus eliminating the hassle to remove the batteries or a charger at a specific time. This feature also eliminates the cost of external battery chargers and extending rechargeable battery life. They offers 57 wide and narrow band channels at 216MHz, and an exclusive "seek" capability that allows a user to automatically find a transmitting channel. The channels are digitally tuned when a channel is selected it stays there hence assuring you of consistent high quality audio.
The other specifications are as follows: |
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Specification |
72 MHz |
216 MHz |
| RF |
Frequency Range |
72.025 - 75.950 MHz |
216.025 - 216.975 MHz |
| Number of Channels |
57 (17 wide, 40 narrow) |
57 (19 wide, 38 narrow) |
| Sensitivity |
.6uV typical, 1 uV maximum for 12dB SINAD |
| Frequency Accuracy |
±.005% stability 0° to 50°C (32° to 122° F) |
| Stability |
50 PPM |
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| Audio |
System frequency response |
63Hz - 15kHz (± 3dB) |
63Hz - 10kHz (±3dB) |
| System Signal to Noise Ratio |
SQ enabled: 80dB; SQ disabled 60dB |
SQ enabled: 80dB; SQ disabled 50dB |
| System Distortion |
< 2% total harmonic distortion (THD) at 80% deviation |
| Indicators |
LCD Display |
Indicates channel, RF signal strength, lock status, squelch, battery power level and channel programming |
| LED |
Red illuminates when unit is on. Flashes when batteries are low. Flashes when charging. Flashes when locked and user attempts to seek to another channel |
| Physical |
Dimensions |
3.0 x 1.0 x 4.25 in. (7.6 x 2.5 x 13 cm) |
| Weight with batteries |
5.8 oz. (164.4 g) |
| Door |
Manually lockable. UP, DOWN and power through door, other controls behind door |
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