Retevis
Retevis RT73 Dual Band GPS Mini DMR Mobile Amateur Ham APRS Radio
Retevis RT73 Dual Band GPS Mini DMR Mobile Amateur Ham APRS Radio
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Quick Specs
Quick Specs
RJ-45
25W
Scoll down for more information about this item.
Introducing the Retevis RT73 Dual Band GPS Mini DMR Mobile Amateur Ham APRS Radio. This versatile radio operates on the 2m and 70cm bands and includes built-in GPS and APRS capabilities. Clear display and handheld microphone make communication easy and efficient. Perfect for vehicle use.
The Retevis RT73 is a highly advanced dual band GPS DMR mobile radio designed for amateur ham enthusiasts. With DMR digital technology and compliance with ETSI TS 102 361-1,-2 digital protocol, it offers clear sound and powerful communication capabilities. Plus, it can easily connect to other amateur ham radios using a compatible mode, either analog FM or digital DMR. Elevate your ham experience with the RT73.
The Retevis RT73 Dual Band GPS Mini DMR Mobile Amateur Ham APRS Radio is designed for amateur ham radio enthusiasts. With dual DMR time slot capabilities, single/group calling, and messaging and TOT features, this radio offers a multitude of communication options. The integrated GPS and APRS functions provide added convenience and the crystal sound quality ensures clear communication. Its compact size and high power output make it convenient for installation on any device.
Please note: While this radio has APRS it is a very basic implementation and may not meet the needs of those looking for a full APRS "tracker" style setup. Please download the software for the radio to get a better understanding of the APRS options that are available. Retevis also has a brief introduction to the APRS settings here.
| General | |
| Product Number | RT73 |
| Frequency Range (Ham Bands Only) |
UHF：430-450MHz VHF：144-148MHz |
| Channel number | 4000 (250 Channels / Zone) |
| Channel spacing | 12.5KHz/25KHZ |
| Standby current | 160mA |
| Operating temperature range | -20℃~+50℃ |
| The antenna impedance | 50Ω |
| Overall dimensions | 121.5*65.5*42.5mm |
| Rated Voltage | DC-13.8V |
| Transmitter | |
| Rf power | 5-20W |
| Modulation restriction | ±2.5dB@12.5kHz / ±5.0dB@25kHz |
| FM hum& noise | -40dB@12.5kHz / -45dB@25kHz |
| Conducted/radiated emission | -36dBm＜1GHz / -30dBm＞1GHz |
| Adjacent channel selectivity | -60dB@12.5kHz / -65dB@25kHz |
| Audio Response | +1~-3dB |
| Audio Distortion | 3% |
| Emission current | 3A |
| RECEIVER | |
| Frequency stability | +/-1.5ppm |
| Analogue sensitivity | 0.3μV / 0.25μV |
| Digital sensitivity(5% BER) | 0.25μV / 0.2μV |
| Intermodulation | 65dB |
| Adjacent channel selectivity | 60dB@12.5kHz / 65dB@25kHz |
| Spurious rejection | 65dB |
| Rated audio | 500mw |
| FM hum &noise | -40dB@12.5kHz / -45dB@25kHz |
| Audio response | +1~-3dB |
| Receive current | 350-460mA |
What’s in the Box？
- 1x Mini Mobile Radio
- 1x Hand Microphone
- 1x GPS Antenna
- 1x Power Cord
- 1x Bracket
- 1x Mounting Hardware
- 1x Manual
Description
Introducing the Retevis RT73 Dual Band GPS Mini DMR Mobile Amateur Ham APRS Radio. This versatile radio operates on the 2m and 70cm bands and includes built-in GPS and APRS capabilities. Clear display and handheld microphone make communication easy and efficient. Perfect for vehicle use.
The Retevis RT73 is a highly advanced dual band GPS DMR mobile radio designed for amateur ham enthusiasts. With DMR digital technology and compliance with ETSI TS 102 361-1,-2 digital protocol, it offers clear sound and powerful communication capabilities. Plus, it can easily connect to other amateur ham radios using a compatible mode, either analog FM or digital DMR. Elevate your ham experience with the RT73.
The Retevis RT73 Dual Band GPS Mini DMR Mobile Amateur Ham APRS Radio is designed for amateur ham radio enthusiasts. With dual DMR time slot capabilities, single/group calling, and messaging and TOT features, this radio offers a multitude of communication options. The integrated GPS and APRS functions provide added convenience and the crystal sound quality ensures clear communication. Its compact size and high power output make it convenient for installation on any device.
Please note: While this radio has APRS it is a very basic implementation and may not meet the needs of those looking for a full APRS "tracker" style setup. Please download the software for the radio to get a better understanding of the APRS options that are available. Retevis also has a brief introduction to the APRS settings here.
| General | |
| Product Number | RT73 |
| Frequency Range (Ham Bands Only) |
UHF：430-450MHz VHF：144-148MHz |
| Channel number | 4000 (250 Channels / Zone) |
| Channel spacing | 12.5KHz/25KHZ |
| Standby current | 160mA |
| Operating temperature range | -20℃~+50℃ |
| The antenna impedance | 50Ω |
| Overall dimensions | 121.5*65.5*42.5mm |
| Rated Voltage | DC-13.8V |
| Transmitter | |
| Rf power | 5-20W |
| Modulation restriction | ±2.5dB@12.5kHz / ±5.0dB@25kHz |
| FM hum& noise | -40dB@12.5kHz / -45dB@25kHz |
| Conducted/radiated emission | -36dBm＜1GHz / -30dBm＞1GHz |
| Adjacent channel selectivity | -60dB@12.5kHz / -65dB@25kHz |
| Audio Response | +1~-3dB |
| Audio Distortion | 3% |
| Emission current | 3A |
| RECEIVER | |
| Frequency stability | +/-1.5ppm |
| Analogue sensitivity | 0.3μV / 0.25μV |
| Digital sensitivity(5% BER) | 0.25μV / 0.2μV |
| Intermodulation | 65dB |
| Adjacent channel selectivity | 60dB@12.5kHz / 65dB@25kHz |
| Spurious rejection | 65dB |
| Rated audio | 500mw |
| FM hum &noise | -40dB@12.5kHz / -45dB@25kHz |
| Audio response | +1~-3dB |
| Receive current | 350-460mA |
What’s in the Box？
- 1x Mini Mobile Radio
- 1x Hand Microphone
- 1x GPS Antenna
- 1x Power Cord
- 1x Bracket
- 1x Mounting Hardware
- 1x Manual
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Questions & Answers
Have a Question?
-
Is there a fix for it not sending DTMF tones? I was hoping to use my RT73 with EchoLink and AllstarLink nodes as well as DMR repeaters but it doesn't transmit DTMF signals.
The Retevis RT73 is capable of sending DTMF tones.
Sending tones is a bit different on this radio, but is achievable. I tested this on one in stock, and the tones are heard on the receiving radio.
Long Press the number "1" key on the microphone to enter DTMF TX mode. The radio will begin transmitting.
Once in DTMF Mode just press any of the number keys to immediately send that DTMF tone. You do not need to press or hold the PTT button to do this.
Press the "*" key to send the aserisk DTMF tone
Press the P1(DTMF A); P2(DTMF B); P3(DTMF C); P4(DTMF D) to send DTMF characters A through D.
Keying up the radio (press and release PTT) will exit the DTMF mode and the radio will stop transmitting.
73s
Fleetwood Digital