Why the Ailunce H1 DMR radio has powerful GPS capabilities
May 23, 2025
General Specifications |
Frequency range * |
TX: TX: VHF 144-146MHz & UHF 430-440MHz; RX:VHF 136-174 MHz & UHF 400-520 MHz; GPS :GPS L1C/A,SBAS L1C/A ,QZSS L1C/A,BDS B1I |
Channel Capacity |
4000 Channels |
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Channel Spacing |
12.5KHz/25Khz |
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Operating Voltage |
7.4V |
|
Battery Type |
Li-ion battery |
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Operating Temperature |
-20°C ~ +50°C |
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Audio Power Output |
16Ω 1W |
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Antenna Impedance |
50Ω |
|
Receiver |
Sensitivity |
(12dB SINAD)≤-121dBm |
Adjacent Channel |
≥70dB(25Khz) |
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Selectivity |
≥60dB(12.5Khz) |
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Spurious Emissions |
≤-57dB(25Khz) ≤-57dB(12.5Khz) |
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Spurious Suppression |
≥70dB(25Khz) ≥70dB(12.5Khz) |
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Signal-to-Noise Ratio |
≥45dB(25Khz) ≥40dB(12.5Khz) |
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Audio Distortion |
≤5% |
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Transmitter |
TX power |
High: ≤6W Middle : 3W Low: 0.5W |
Frequency Stability |
±2.5ppm |
|
Modulation Limits |
±5.0KHz@25KHz(25Khz) ±2.5KHz@12.5KHz(12.5Khz) |
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Adjacent Channel Power |
≤70dB(25Khz)≤60dB(12.5Khz) |
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Signal-to-Noise Ratio |
25Khz: 45dBm;12.5Khz: 40dBm |
|
4FSK digital modulation |
12.5KHz(Data)7K60FXD 12.5KHz(Data+Voice)7K60FXE |
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Audio Distortion |
≤5% |
|
Bit Error Rate |
≤3% |
Q1: Does the Retevis H1 DMR Radio support both transmitting and receiving APRS signal, as well as sending APRS messages?
A1: Yes, the Retevis H1 supports APRS transmit and receive functions. It can also send APRS messages, enabling real-time location tracking and basic text communication.
Q2: Does the H1 support 9600bps APRS or the standard 1200bps?
A2: The Retevis H1 supports standard 1200bps APRS.
Q3: Does the H1 handheld radio have IP67 waterproof functionality?
A3: The H1 radio is not IP67 rated for waterproofing. It is built to be durable, but it should not be submerged in water or exposed to heavy water conditions. Please avoid exposing the device to water to maintain its best performance and longevity.
RETIVIS Corporate is missing a great $$$s opportunity to write/ support a missing NEEDED iPhone and Droidstar based APP (that use to be available by individual ham… for the many of us who live in rural areas w/o DMR repeaters OR only daisey-chained DMR repeaters do not allow longer Nets or even small 4-6 chit- chat groups from ‘hogging’ the DMR repeaters/ linked Repeater system. The iPhone App that was privately written allowed individual groups to use their DMR HTs to directly link via WiFi (like to a hotspot) but directly to their WiFi ability and onto the phone’s ability to connect to that groups ‘chat- room’. It didn’t tie up local DMR repeaters, always available, n NEVER any reception issues (hospitals, mountains, marine mobile… so long as adequate cell phone signal was available. EVERYONE that was using this DMR HT to DMR NETWORK phone Iapp REALLY MISSES IT. Think most would even be willing to pay modest monthly fee…
Will there be a user modding community? Open firmware radios like GD-77 gained huge followings.
No BT mentioned - a missed opportunity for wireless headsets and smartphone integration.
Are spare batteries, extended antennas, and car chargers readily available? Or proprietary/overpriced?
Specs should list operating temps.
At $180, what's the warranty? 1 year? 2? Water damage coverage would show confidence in build quality.
Is the software intuitive or another clunky nightmare? Bad UI makes complex radios frustrating.
500K contacts need smart sorting - can you create custom groups or is it one massive list?
Tactile buttons matter when wearing gloves. Are these raised properly or flush/slippery?
Many dual-banders omit this key feature. If H1 includes it, that's a huge plus for emergency use.
Can you adjust APRS beacon frequency? Constant 10-minute pings will murder battery life.
Does it use SMA or BNC connectors? Aftermarket antenna compatibility could make/break this for enthusiasts.
Clear audio matters - does the mic handle wind noise well? Some radios become unusable in breezy conditions.
Color screens often wash out outdoors. Can you actually read this one in direct sunlight?
Most radio belt clips break within months. Is H1's clip metal-reinforced or the same flimsy plastic?
AES encryption sounds good, but is it properly implemented? Many 'secure' radios have been cracked easily.
With 500K contacts, how fast does channel scanning work? Laggy scanning makes large contact lists useless.
Can users update firmware via USB-C? Some radios require proprietary cables - that would be a step backward.
They call it 'rugged' but what's the actual IP rating? If it's not at least IP54, heavy rain might be trouble.
How's the voice clarity with the AMBE codec? Some budget DMR radios sound robotic - hope H1 does better.
The built-in GPS is great for APRS, but does it maintain accuracy in dense forests or urban canyons? Real-world testing needed.
6W transmit power + 25 hours runtime shows Ailunce found the perfect balance between performance and power consumption. Compared to 10W radios (which typically halve battery life), the H1 is better for lightweight travel.
25 hours runtime in digital mode is impressive! Clearly optimized for power efficiency, making it great for fleet dispatch or emergency operations. But how much does enabling both GPS and APRS reduce this? Hope Retevis provides detailed test conditions (e.g., transmit/receive ratio).
The 2900mAh battery lasts 25 hours in digital mode, and USB-C charging is a boon for outdoor users - no need for special chargers, just use a power bank.
At $179.99, it's nearly $100 cheaper than the AnyTone 878UV II. Perfect for budget-conscious users needing basic DMR+APRS functionality. If quality control holds up, this could be the ultimate entry-level radio.
Support for both analog and digital APRS gives it far better compatibility than competitors! Combined with GPS tracking, it's ideal for fleet monitoring or field positioning. But is digital APRS relay support fully developed? Hope firmware updates improve this.
500,000 contact storage and dual-band DMR support make it perfect for fleet dispatch or large event coordination.
GPS boundary alerts + top emergency button + NOAA weather alerts make the H1 reliable for outdoor adventures and disaster response. Features like 'Man Down' detection and SFR could be lifesavers. But is 6W power sufficient in mountainous areas? Field testing recommended.
6W power + APRS tracking + waterproof design make the H1 look like an outdoor communication powerhouse.
If real-world tests confirm its GPS positioning speed and DMR call quality meet standards, this could be an amazing device.
$179.99 is a very tempting price for a dual-band DMR + GPS/APRS radio!
Is there a waiting list I can join to get early access to buy?
VIP fast delivery sounds perfect! How can I get access to this?
How do I get the $25 savings? Do I need to sign up somewhere?
I can't wait to buy the H1! When will it be available for purchase?
When can we actually use the $25 discount? At launch or pre-order?
I'm so excited for this! What's the exact release date for H1?
Matches the description 100%. No complaints here!
No issues at all since day one. Reliable and performs well.
I’m obsessed with this! Already convinced two coworkers to buy one.
If you do not like the product you can return it within 15 days - no questions asked. This excludes bodysuits, swimwear and clearance sale items. We have an easy and hassle free return policy. Please look at our Delivery & Returns section for further information.