I have had the same issue though like you are unsure how to resolve it, found out though to not check auto scan in the channel options in cps and you just have to manually press scan button for scanning because when you check auto scan it means it automatically scans it doesn't need to be manually triggered though my only problem now is I cannot get it to un mute so I can hear people, it only unmutes for fire rescue dispatch in my area because it has the known talk group in it and besides that was on promiscuous aka monitor mode to scan both timeslots.
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Radioddity Radioddity GD-77
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I have had the same issue though like you are unsure how to resolve it, found out though to not check auto scan in the channel options in cps and you just have to manually press scan button for scanning because when you check auto scan it means it automatically scans it doesn't need to be manually triggered though my only problem now is I cannot get it to un mute so I can hear people, it only unmutes for fire rescue dispatch in my area because it has the known talk group in it and besides that was on promiscuous aka monitor mode to scan both timeslots.
N4DXX
Member
I'm not near the radio or computer but there's a setting that says "single single" or "single double". You want it on single single or off. Single double or double double (I can't remember for sure) caused a scan fail.
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Tim Jude
Tim Jude k thanks im looking in the software
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Make sure you have created at least one "Scan List" with the channels you want to scan (up to 16 channels per scan list) and then assign it to each channel in a zone. To start scanning change to a channel that has a scanlist programmed and press the button assigned for Scan.
Here are more tips on programming the GD-77.
https://forums.radioreference.com/a...06538094-help-programming-gd-77-oh-my-god.txt
https://m.youtube.com/watch?v=3hr9zAJmE2I
Here are more tips on programming the GD-77.
https://forums.radioreference.com/a...06538094-help-programming-gd-77-oh-my-god.txt
https://m.youtube.com/watch?v=3hr9zAJmE2I
va3mrj
Newbie
Caller ID GD-77
The GD-77 will display the caller callsign and DMR ID. It is limited by memory size, however I have downloaded over 1200 in mine so far. The download utility is available of the Radioditty website. The database is available on DMR-Marc. I am still trying to get a name to show with the callsign but the fields appear to be limited. It is a bit tricky with importing the data into excel spreadsheet to format for downlaod. The import utility does not show the file coming in, but its there, then write it to the radio. If you get it wrong the radio will give an error message. You need to put the radio into a special program mode different than the firmware programming mode. Press # key, the 1 key, the blue side key all at once, then turn on the radio. Then write the file to the radio.
The GD-77 will display the caller callsign and DMR ID. It is limited by memory size, however I have downloaded over 1200 in mine so far. The download utility is available of the Radioditty website. The database is available on DMR-Marc. I am still trying to get a name to show with the callsign but the fields appear to be limited. It is a bit tricky with importing the data into excel spreadsheet to format for downlaod. The import utility does not show the file coming in, but its there, then write it to the radio. If you get it wrong the radio will give an error message. You need to put the radio into a special program mode different than the firmware programming mode. Press # key, the 1 key, the blue side key all at once, then turn on the radio. Then write the file to the radio.
Jimbo695
Member
Scan Groups Limited to 16 ???
Hi folks. I can't get more than 16 scan groups. Program won't let me create more. Am I doing something wrong?? Thanks.
Hi folks. I can't get more than 16 scan groups. Program won't let me create more. Am I doing something wrong?? Thanks.
It's a good 8 hours using the stock charger, and yes the light will turn green.
KhaosPlaysBass
Member
I ordered one of these today and cannot wait for it to arrive. Hopefully this isn't too silly of a question but I mainly use my current analog HT to communicate with a group of people that also have analog equipment. Am I able to program the frequency we use on digital mode and still hear them or does it need to be in analog mode?
Sent from my SAMSUNG-SM-G930A using Tapatalk
Sent from my SAMSUNG-SM-G930A using Tapatalk
KhaosPlaysBass
Member
Ok, so they would need DMR radios to converse with me on digital then. Thanks!
Sent from my SAMSUNG-SM-G930A using Tapatalk
Fidgety9996
Member
Any idea if there are plans to make GD77 capable of DMRA 40-bit ARC4 encryption? That would make interoperable with other radios.
Encryption
The GD-77 is a low end radio and not intended for professional use like Hytera (not Tytera) or Motorola. Since encryption is not allowed on amateur bands in the US, there is no point to include it in the firmware or to have two different builds that would increase costs. Any user that requires secure coms should be considering a professional brand.
The GD-77 is a low end radio and not intended for professional use like Hytera (not Tytera) or Motorola. Since encryption is not allowed on amateur bands in the US, there is no point to include it in the firmware or to have two different builds that would increase costs. Any user that requires secure coms should be considering a professional brand.
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Fidgety9996
Member
Yes it is low end.
In Poland encryption is not forbidden on amateur bands. Please note that only the voice data is encrypted not the source and target ID.
New radio arrived today.
Updated firmware to V3.0.6. Appeared successful.
Installed software V2.0.5. on my Windows 10 laptop,
Cannot now connect computer to radio. Keep getting "Device not found".
Have tried a Factory Reset as per the Instruction Manual. This has not helped. Now every time I switch the set on I get "Factory Init..." followed by "welcome" and then a display that says "Freq Error".
Any suggestions?
Updated firmware to V3.0.6. Appeared successful.
Installed software V2.0.5. on my Windows 10 laptop,
Cannot now connect computer to radio. Keep getting "Device not found".
Have tried a Factory Reset as per the Instruction Manual. This has not helped. Now every time I switch the set on I get "Factory Init..." followed by "welcome" and then a display that says "Freq Error".
Any suggestions?
Does this mean the GD-77 does not include DMR encryption (basic or enhanced)?
It does.. but I don't think it's compatible with any other brands (definitely not Moto/Hytera etc).
Fidgety9996
Member
It does not contain anything relatively strong, known of algorithm and compatible with something else. 40bit DMRA ARC4 is relativeley weak but at least compatible in between Motorola (enhanced privacy) and Hytera for example.
Granted, 40-bit encryption is not the best but it is a whole lot better than the basic encryption where there are only 256 different codes.
So does the GD-77 have enhanced 40-bit encryption that is compatible with TRBO? Sorry, but I couldn’t figure out from your last post what is has for encryption capabilities. Thanks.
So does the GD-77 have enhanced 40-bit encryption that is compatible with TRBO? Sorry, but I couldn’t figure out from your last post what is has for encryption capabilities. Thanks.
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