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Radioddity GD-77S Dual Band Dual Time Slot DMR Two Way Radio Compatible with MOTOTRBO + Programming Cable

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GD-77S DMR Radio+Programming Cable (BUY NOW!)
SKU: 28-120-204-RO

Regular Price: $76.99

Special Price $72.99

Availability: In stock

Dual band VHF UHF: Meet the different system standard in different states and countries.

Dual time slot for point to point: You can use separate time slot in Group Calls with Point to Point repeater function.

Voice Prompt: We added voice prompt function in customize side button (in CPS choose “channel information” ON).

 The device will report all the current details.

Channel Rotate Button & Customize Side button: Various practical buttons make it more convenient for using.

Pre-set FRS/GMRS/PMR446 Channels: Under zone 1 & 2, we have pre-programmed some FRS/GMRS channels; Under zone 3 & 4 are some PMR446 channels. You can rewrite them in CPS if you don’t need them.

Regular Price: $76.99

Special Price $72.99

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Regular Price: $76.99

Special Price $72.99


Product Description


  1. Frequency Range: VHF:136-174MHz, UHF 400-470MHz
  2. Output Power: 5W
  3. Newly added Channel Rotate Button
  4. Analog & Digital DMR Tier I & II, compatible with Motorola and other DMR radios
  5. High-Low Power: 5W/1W
  6. Contact ID Capacity: 256
  7. RX Group list: 76, each RX group list can hold 32 contact ID Scan list: 64, each scan list can hold 32 channels
  8. Zone Capacity: 32, each zone can hold 16 channels
  9. Channel Capacity: 1024
  10. Battery Capacity: 2200 mAh Li-Po battery


  1. Added Channel Rotate Button for fast switching channels.
  2. Fast switching between zones, use side button to set zones.
  3. Scan function supports both analog & digital mode.
  4. Monitor mode: Turn on monitor mode, when time slot and color code are confirmed, you can receive frequency with no limit of contact id and RX group lists.
  5. Customize shortcut keys with side buttons: including long-press and short-press. Editing shortcut keys with Programming Software.
  6. Voice Prompt: Channel number, RX frequency, TX frequency, zone (mode), time slot (1,2), color code, DMR ID, power
  7. Repeater function supports both analog & digital mode.
  8. With SMA-Male antenna base, compatible with all SMA-Female antennas.
  9. Driver-free programming cable, plug and play
  10. FRS/GMRS frequency information under factory settings
  11. User-friendly programming software: support bulk editing on channels and contact ID, support import and export with CSV file.
  12. Continuously support on software and firmware update

 Product Function:

  • Programmable CTSS/DCS
  • Squelch
  • TOT
  • VOX
  • Encrypt
  • Emergency Alarm

 About Zone Setting:

We’ve set 4 zones with 64 channels totally. Zone 1 & 2 is for FRS/GMRS 1-16 analog and digital frequencies. Zone 3 & 4 is for PMR446 1-16 analog and digital frequencies. GD-77S is compatible with all FRS/GMRS/PMR446 analog amateur radios.

GD-77S is able to program 32 zones and switch channels on the device.

Step 1: Choose Side button 1 or 2 to set zone function.

Step 2: Enter zone setting, use Side button 1 and 2 for UP/DOWN choosing channels, zone number will be told by audio. (mode1, mode2 …)

Step 3: After selecting for zones, please long-press Side button 1 or 2 to save and exit.

About FRS/GMRS and PMR446 – UHF radio frequency

About Programming:

The programming cable is equipped with driver which supports Windows XP/7/10 and there is no need for you to install the driver in your computer. If you are not able to program your GD-77S, please try to insert the cable to another USB port or another computer. If it still doesn't work, please kindly report to us, we will arrange you a new replacement once we have confirmed your issues.

Package Content

1 x GD-77S DMR
1 x Belt Clip
1 x Desktop Charger
1 x 2200mAh Battery
1 x User Manual
2 x Dual Band High Gain Antennas
1 x Free Earphone
1 x Free Programming Cable


Customer Reviews 1 item(s)

1 Item(s)

GD-77s, the stripped but still DMR-capable dual band version of the legendary GD-77
While the GD-77 with its outstanding price/power-ratio had been directed primarily at radio amateurs with huge success, the new GD-77s is aimed at securities and public facilities.
With its output power of either 1 or even 5 W it operates both in analog as well as in digital DMR mode. Supporting Tier I & II with Timeslot 1 and 2 the GD-77s is compatible to repeater operation even in Europe. The frequency range covers VHF, starting at 136 MHz and up to 174 MHz and UHF between 400 MHz and 470 MHz. The DMR-mode is compatible with other devices operating according to MOTOTRBO™.

The technical specs are about the same as for the GD-77, except for the missing LCD and the additional channel knob of the GD-77s. This channel knob allows the easy channel selection. With a corresponding voice prompt such as ‘1’, ‘2’ … ‘16’, the GD-77s confirms changes in channel selection. This makes the GD-77s even excellent for the blind resulting in a unique selling proposition compared to other vendors.
A max of 32 zones with each up to 16 channels may be stored in the device. Furthermore up to 76 receive groups host the channels the user wants to listen to.

The GD-77s is programmed with a special, Windows-based CPS (Customer Programming Software). This CPS is very similar but not identical to the one used for the GD-77. As the GD-77s stands without any display configuration is only possible by means of this CPS. Thus misconfigurations caused by the user are a thing of the past, making the handheld radio ideal for the above mentioned target group.
Both side keys as well as the orange key on top may be custom programmed to perform specific actions. By means of short and long press a total of 6 actions may be assigned using the CPS.

One of the keys should be assigned for ‚Channel Information‘. On activation the user will get a voice prompt telling all relevant settings for the currently selected channel such as channel number, transmit and receive frequency or even output power. If it is required to switch between zones, that would be some more very assignment to one of the keys.
Accessory designated to the GD-77 will of course also fit for the GD-77s and may be used the very same way. The charging cradle delivered with the GD-77s is the same as for the GD-77. The power supply required for the cradle comes with a fixed cable connector.

All in all the GD-77s is ideal for handheld use especially for security services and public institutions. It allows seamless operation with both worlds, the historic analog and the future DMR world. The low purchase price combined with its technical specs as well as the high quality accustomed by Radioddity will certainly be the decisive arguments for purchase decisions.
Review by DG5EAU /

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