Radioddity GD-88 DMR Radio 7W VHF UHF GPS APRS Cross-band Repeat 300K

RELATED BLOG

Product Review - Radioddity GD-88 Dual VFO DMR Radio

10. April 2023

ArticleDrop

Radioddity GD-88 New Firmware Release | 2023-03-30

30. März 2023

ArticleDrop

How to Update Radioddity GD-88 & DB25-D Firmware?

28. Oktober 2022

ArticleDrop

Radioddity GD-88 Now Supported by CPEditor!

18. Oktober 2022

ArticleDrop

Getting on Air with Your DMR Radio v2.2 (Updated: 2023 May)

29. Mai 2023

ArticleDrop

Beginners Quick Guide | The Basics of DMR Digital Mobile Radio (Updated: 2024)

31. Juli 2018

ArticleDrop

Radioddity

GD-88

Dual Band, Dual Mode, Dual Standby

The GD-88 contains two independent VFOs that allow dual-band operation on VHF and UHF channels. With dual mode, the GD-88 allows a smooth transition from communication with conventional analog radios to digital DMR (Tier II) at any time. It also comes with dual-standby to monitor two channels at the same time.

7W + 300K

DMR Contacts

The Radioddity GD-88 is a powerful handheld radio with a compact design, featuring selectable output power of 7W/2.5W and storage for up to 300,000 DMR contacts, which can be bulk imported via software.

Dual Band, Dual Mode, Dual Standby

The GD-88 contains two independent VFOs that allow dual-band operation on VHF and UHF channels. With dual mode, the GD-88 allows a smooth transition from communication with conventional analog radios to digital DMR (Tier II) at any time. It also comes with dual-standby to monitor two channels at the same time.

7W + 300K

DMR Contacts

The Radioddity GD-88 is a powerful handheld radio with a compact design, featuring selectable output power of 7W/2.5W and storage for up to 300,000 DMR contacts, which can be bulk imported via software.

0102/02

Cross-band Repeater Function

Working as a base radio to extend your talking range, the GD-88 is capable of transmitting on one frequency band (UHF/VHF) a receive a signal on the other frequency band (VHF/UHF). Compared to traditional cross-band repeaters, the GD-88 can cross-band repeat from an analog band to a digital one (or from digital to analog.)

Same Frequency Repeater (SFR)

Using just one frequency for transmitting and receiving gives it full use of the DMR TDMA-technique by using one timeslot for receiving and transmitting the received signal on the same frequency, but using the second timeslot, acting as a Same-Frequency-Repeater (SFR). Multiple GD-88’s within a certain area can create a mesh-network, allowing single-VFO radios to communicate with other radios bridged by several GD-88’s that are operating in SFR-mode. The GD-88 is must-have radio for emergency situations where conventional communication systems are limited or unavailable.

01

Cross-band Repeater Function

Working as a base radio to extend your talking range, the GD-88 is capable of transmitting on one frequency band (UHF/VHF) a receive a signal on the other frequency band (VHF/UHF). Compared to traditional cross-band repeaters, the GD-88 can cross-band repeat from an analog band to a digital one (or from digital to analog.)

02

Same Frequency Repeater (SFR)

Using just one frequency for transmitting and receiving gives it full use of the DMR TDMA-technique by using one timeslot for receiving and transmitting the received signal on the same frequency, but using the second timeslot, acting as a Same-Frequency-Repeater (SFR). Multiple GD-88’s within a certain area can create a mesh-network, allowing single-VFO radios to communicate with other radios bridged by several GD-88’s that are operating in SFR-mode. The GD-88 is must-have radio for emergency situations where conventional communication systems are limited or unavailable.

GPS with APRS Function

GPS with APRS Function

The GD-88 has a powerful built-in GPS receiver for use with APRS to allow real-time push messages of position beacons to the APRS-network. This makes it ideal for outdoor activities where you need to be tracked by others, especially emergency situations.

GPS Function

Analog and Digital APRS

Receive and Transmit

3000mAh Battery & Power Saving

With its powerful 3000mAh battery and the built-in power saving feature, the Radioddity GD-88 supports up to 24 hours of standby time, 15 hours of continuous working time under the analog mode, and 23 hours under digital mode.

2-in-1 Desktop Charger

The GD-88 comes with a unique desktop charger, allowing you to charge your radio and an extra battery (not included) at the same time.

Four Customizable Keys

The 2 side buttons above and below the PTT-key, the orange emergency button at the top, and the green key above the numerical keypad are customizable each with long/short press options. You can set different functions according to your needs such as High/Low Power, Backlight On/Off, Keylock On/Off, VOX On/Off, Select Zone, Scan On/Off, Scan Mode, Repeater/Talk Around, and many more functions.

Crystal Clear Sound

A Built-in 36mm diameter large speaker utilizes advanced voice processing technology to ensure a crystal-clear sound even in a noisy environment.

IP54 Waterproof

The GD-88 will be protected against contamination from limited amounts of dust and other particles. Additionally, you can be confident that it will be protected from water sprays from all directions.

3000mAh Battery & Power Saving

With its powerful 3000mAh battery and the built-in power saving feature, the Radioddity GD-88 supports up to 24 hours of standby time, 15 hours of continuous working time under the analog mode, and 23 hours under digital mode.
2-in-1 Desktop Charger

The GD-88 comes with a unique desktop charger, allowing you to charge your radio and an extra battery (not included) at the same time.
Four Customizable Keys

The 2 side buttons above and below the PTT-key, the orange emergency button at the top, and the green key above the numerical keypad are customizable each with long/short press options. You can set different functions according to your needs such as High/Low Power, Backlight On/Off, Keylock On/Off, VOX On/Off, Select Zone, Scan On/Off, Scan Mode, Repeater/Talk Around, and many more functions.
Crystal Clear Sound

A Built-in 36mm diameter large speaker utilizes advanced voice processing technology to ensure a crystal-clear sound even in a noisy environment.
IP54 Waterproof

The GD-88 will be protected against contamination from limited amounts of dust and other particles. Additionally, you can be confident that it will be protected from water sprays from all directions.

Detailed parameters

General

General	VHF	UHF	Operating Temperature	0° C ~ +40° C
Frequency	136-174 MHz	400-480 MHz	Antenna Impedance	50 Ω
Type	Dual band, Dual standby, Dual mode, Dual VFO		LiPo Battery	7.4V / 3000 mAh
Digital mode	TDMA 2-Time Slot technology (Tier 1 and Tier 2)		Rated Voltage	DC 7.4V
Digital vocoder	AMBE+2™		Dimension (H x W x D)	125 mm x 60 mm x 39 mm
Digital agreement	ETSI-TS 102 361-1, -2, -3		Weight	317 g
Zones	16		Battery The average battery life under 5/5/90 duty cycle, and using carrier squelch and TX high power with 3000mAh LiPo battery Analog: 15 hours / Digital: 23 hours
Channel Capacity	Up to 4000 (250 Channels per Zone )
PLL Channel Spacing	12.5 kHz / 25 kHz

Receiver

Receiver	VHF	UHF	Adjacent Channel Selectivity	≥60 dB @ 12.5 kHz / ≥65 dB @ 25 kHz
Frequency Range	136-174 MHz	400-480 MHz	Spurious rejection	65 dB
Operating Bandwidth	≤±5 kHz @ 12.5 kHz / ≤±7 kHz @ 25 kHz		Rated audio	500 mW
Frequency stability (-20 °C ~ +25 °C)	± 1.5 ppm		Audio Distortion @ rated audio	3%
IFs	mixing 45 MHz in VFO A mixing 51.550 MHz in VFO B		FM hum & noise	-40 dB @ 12.5 kHz / -45 dB @ 25 kHz
FM modulation Type	12.5 kHz: 11KOF3E / 25 kHz: 16KOF3E		Audio response	+1 dB, -3 dB
Analogue sensitivity	0.3 µV / 0.25 µV		Conducted / radiated emission	-57 dBm
Digital sensitivity (5 % BER)	0.25 µV / 0.2 µV
Intermodulation	65 dB

Transmitter

Transmitter	VHF	UHF	Adjacent Channel Selectivity	-60 dB @ 12.5 kHz / -65 dB @ 25 kHz
Frequency Range	136-174 MHz	400-480 MHz	Maximum Deviation	≤±2.5 kHz @ 12.5 kHz ≤±5.0 kHz @ 25 kHz
Frequency stability (-30°C, +25°C)	± 1.5 ppm		Spurious Emission	≤65 dB below carrier
Low Power	2.5 W	2.5 W	Audio Response	+1 dB, -3 dB
High Power	7.0 W	7.0 W	Audio Distortion	3%
FM modulation Type	12.5 kHz: 11KOF3E / 25 kHz: 16KOF3E		4FSK digital modulation	12.5 kHz data: 7K60F1D and 7K60FXD
Modulation restriction	±2.5 dB @ 12.5 kHz / ± 5 dB @ 25 kHz			12.5 kHz data: 7K60F1D and 7K60FXD
FM hum & noise	-40 dB @ 12.5 kHz / -45 dB @ 25 kHz			12.5 kHz data and audio:7K60F1W
Conducted / radiated emission	-36 dBm < 1GHz / -30 dBm > 1 GHz

Specifications

Frequency Range	VHF 136-174MHz RX/TX UHF 400-480MHz RX/TX
FCC ID	2AN62-GD88
Low Power	2.5W
High Power	7W
Zones	16
Channel Capacity	up to 4000 (250 perzone)
Rated Voltage	DC 7.4V
Digital Contacts	300,000
Water-resistant Rating	IP54
Working Mode	Analog & Digital
Display	2” color TFT Screen
Battery	3000mAh lithium-ion battery with power saving

Bandwidth	VHF ≤±5 kHz @ 12.5 kHz UHF ≤±7 kHz @ 25 kHz
DMR	Tier I & Tier II
Antenna Socket	SMA-F Fits SMA-M Antenna
Speaker Socket	2-pin Kenwood/ Wouxun earpiece/ speaker mic K1 connection
Size	5x2x1.4in \| 12.5x5.5x3.5cm
Weight	0.7 lb \| 330g

What’s in the box?

1 x Radioddity GD-88 Radio
1 x 3000mAh Battery
1 x Antenna
1 x Belt Clip
1 x Desktop Charger (2-in-1)
1 x AC Adaptor
1 x Wrist Strap
1 x Programming Cable
1 x User Manual

BACK TO Radioddity Family

Radioddity GD-88 DMR Radio | Max 7W | Analog & Digital | VHF & UHF | GPS / APRS | Cross-band Repeat | SFR | 300K

Radioddity GD-88 DMR Radio | Max 7W | Analog & Digital | VHF & UHF | GPS / APRS | Cross-band Repeat | SFR | 300K

General

Operating Temperature

Frequency

Antenna Impedance

Type

LiPo Battery

Digital mode

Rated Voltage

Digital vocoder

Dimension (H x W x D)

Digital agreement

Weight

Zones

Battery

Channel Capacity

PLL Channel Spacing

Receiver

Adjacent Channel Selectivity

Frequency Range

Spurious rejection

Operating Bandwidth

Rated audio

Frequency stability (-20 °C ~ +25 °C)

Audio Distortion @ rated audio

IFs

FM hum & noise

FM modulation Type

Audio response

Analogue sensitivity

Conducted / radiated emission

Digital sensitivity (5 % BER)

Intermodulation

Transmitter

Adjacent Channel Selectivity

Frequency Range

Maximum Deviation

Frequency stability (-30°C, +25°C)

Spurious Emission

Low Power

Audio Response

High Power

Audio Distortion

FM modulation Type

4FSK digital modulation

Modulation restriction

FM hum & noise

Conducted / radiated emission