- Description
Details
Rolls HR70 FM Broadcast Transmitter
The HR70 is a digital display analog FM transmitter. Apply a signal to the XLR or RCA inputs of the HR70. Select what frequency you would like to broadcast those signals on --87.5 to 108 MHz-- and you are now sending signals via FM radio, assuming the antenna is connected properly. The HR70 also has a talk over-circuit built-in. Even though the HR70 is a micropower RF transmitter and requires no FCC license, for it to function properly good RF practices still apply. The wire antenna that is provided is set up for the middle of the band or about 92MHz. For any transmitter to operate at ist′s best, it must be earth grounded. You can think of it sort of "pushing" the signal against the earth. The range can vary widely, depending on grounding, antenna placement, obstructing building/walls, etc.. We have had people report ranges of 150′ or more down to 30′ or so. Some experimenting may be required at your venue to find the optimum installation for your situation.
- Features
Features
- Simple way to broadcast signals over FM
- Max Power Output 4mW 75 ohm
- Antenna Jack: normal female BNC
- Clean simple design
- All metal chassis
- Included DC power supply
- Specification
Frequency Response 20 Hz - 12.5 kHz Input Impedance 100KΩ Unbalanced, 600Ω Balanced Input/Output Jacks XLR balanced INPUT
RCA unbalanced input and outputPower Rolls PS27s
12 - 15 VDC 500mA
5 x 1.2 mm DC Jack - Center NegativeAntenna Jack BNC connector Tuning Range 87.5 - 108 MHz Dimensions (H x W x D) 1.6" (40.6 mm) x 6.75" (171.5 mm) x 4.25" (108 mm) Weight 1.5 lbs (0.68 kg) - Documents
Documents
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