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Rolls HR70 FM Digital Transmitter (87.5 to 108 MHz)

BH #ROHR70 • MFR #HR70
20 reviews
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Rolls HR70 FM Digital Transmitter (87.5 to 108 MHz)
Key Features
  • Broadcast Signals over FM Radio
  • Frequency Response 20 Hz to 12.5 kHz
  • Power LED and Clip LED Indicators
  • Transmits Signals on 87.5 to 108 MHz
The HR70 FM Digital Transmitter from Rolls is designed to receive an audio signal from the built-in XLR or RCA input jacks and broadcast the audio via FM radio. Select the frequency on which you would like to broadcast those signals—87.5 to 108 MHz—and you are now sending signals via FM radio. The HR70 is equipped with power LED and clip LED indicators, and a frequency response of 20 Hz to 12.5 kHz. In addition, there is a built-in talk-over circuit. An FM antenna is also included.
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Rolls HR70 Overview

The HR70 FM Digital Transmitter from Rolls is designed to receive an audio signal from the built-in XLR or RCA input jacks and broadcast the audio via FM radio. Select the frequency on which you would like to broadcast those signals—87.5 to 108 MHz—and you are now sending signals via FM radio. The HR70 is equipped with power LED and clip LED indicators, and a frequency response of 20 Hz to 12.5 kHz. In addition, there is a built-in talk-over circuit. An FM antenna is also included.

All-metal chassis
LCD display showing the active information relevant to the current operation of the HR70
Aux input and line input
RCA stereo outputs
XLR microphone input
USB port to power the HR70
Includes power supply
UPC: 675889007015

Rolls HR70 Specs

Frequency Response
20 Hz to 12.5 kHz
Input Impedance
100 Kilohms Unbalanced, 600 Ohms Balanced
Indicators
Power LED and Clip LED
Input/Output
XLR Balanced Input
RCA Unbalanced Input and Output
Power
12 to 15 VDC 500 mA
1.2 mm DC Jack, Center Negative
Output Power
4 mW
Antenna Connector
BNC
Antenna Impedance
75 Ohms
Current
150 mA
Tuning Range
87.5 to 108 MHz
Dimensions
6.75 x 4.25 x 1.6" / 17.14 x 10.79 x 4.1 cm
Weight
1.5 lb / 680 g
Packaging Info
Package Weight
2.19 lb
Box Dimensions (LxWxH)
9.9 x 7.4 x 4.4"

Rolls HR70 Reviews

FM transmitter

By Roman
Rated 5 out of 5
Date: 2021-01-02

We have only used it a little bit yet, but I'm very happy so far. Works really well, and the setup is simple.

Worked like a champ

By Mark
Rated 5 out of 5
Date: 2020-12-09

We benefited from a great location, a second-story balcony over a large parking lot. Signal carried 300 feet across wide open space. Easy to set up/operate. Has a helpful direct monitor output, which you should definitely use, in addition to monitoring the FM output.

See any errors on this page?

What type of BNC antenna does this take?

What type of BNC antenna does this take?
Asked by: Alice
A 75 ohm BNC style antenna.
Answered by: Daniel
Date published: 2020-07-09

How meny km reach the frequency

How meny km reach the frequency
Asked by: Selva
Not sure but is was useless to us. A lot of interference
Answered by: Anonymous
Date published: 2020-03-18

does this come with a antenna?

does this come with a antenna?
Asked by: Chad
Yes, it comes with an antenna, but no cable.
Answered by: John
Date published: 2020-06-22

Can you recommend an extendable antenna instead ...

Can you recommend an extendable antenna instead of what comes with this unit? I'm hoping for something that looks like this (obviously not this specific item or brand): BH #SES72817 Thanks
Asked by: Bob
Unfortunately at this time we do not carry a proper replacement antenna for this unit. You could try reaching out to Rolls about a suggested replacement at 801-263-9053.
Answered by: Daniel
Date published: 2020-07-21

Will this work with car radios?

Will this work with car radios?
Asked by: Robert
This Rolls FM low power (4mw) transmitter transmits in the FM band; 88Mhz-107Mhz, any car radio or home FM receiver (radio) would be able to tune to any of these FM frequencies.
Answered by: james
Date published: 2020-07-23

What is the FCCID of this unit?

What is the FCCID of this unit?
Asked by: Heather
There is no information provided by the manufacturer regarding an FCC ID for the Rolls HR70. For more details it would be best to contact Rolls directly. You can reach them by phone at (801) 263-9053 or by email at [email protected]. Their office is located in Utah and business hours are from 8:30 AM to 3:30 PM (Mountain Standard Time), Monday through Friday.
Answered by: Lisa S
Date published: 2020-10-16

question

What is the FM broadcast transmission wattage output from this unit? And, is the transmission output in stereo?
Asked by: Don
The output wattage is 40mw. It does also output in stereo.
Answered by: James B.
Date published: 2020-12-15

Does the Rolls HR70 FM Digital Transmitter come ...

Does the Rolls HR70 FM Digital Transmitter come with it's own antenna and coaxial feed line?
Asked by: DAVID
It does come with the antenna, but it does not come with additional cable.
Answered by: John
Date published: 2020-06-21
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