Search found 7345 matches

by VK3KYY
Thu Feb 29, 2024 9:51 pm
Forum: TYT MD2017 / Retevis RT-82
Topic: TYT MD2017 / Retevis RT-82 Public Alpha 2.0 version
Replies: 36
Views: 1489

Re: TYT MD2017 / Retevis RT-82 Public Alpha 2.0 version

I measured the current consumption for exactly 1 hour, and the battery percentage dropped from 99% to 88%. The current consumption needs to be measured with an oscilloscope because the meter reading fluctuates from 60 mA to 200 mA. The screen is continuously off. Do you have GPS turned on? Using di...
by VK3KYY
Thu Feb 29, 2024 8:35 pm
Forum: TYT MD-UV380 / UV390 (NOT 10W UV380/390 PLUS VERSION) / Retevis RT-3S / Baofeng DM-1701
Topic: Baofeng US DM-1701 Sale $69.99, free shipping
Replies: 10
Views: 414

Re: Baofeng US DM-1701 Sale $69.99, free shipping

There are a lot of e-commerce companies in China, and the competition between them is very fierce, the price of the DM-1701 is $40, and the price of the improved model DM-1701B is $50. DMR is still a niche market in China, and UV-K5/K6 is the king in the market. :lol: Is the DM1701B only available ...
by VK3KYY
Thu Feb 29, 2024 10:10 am
Forum: GD-77 / DM-1801 / RD-5R / GD-77S
Topic: Experimental version to help DMR breakup
Replies: 54
Views: 26001

Re: Experimental version to help DMR breakup

OK Roger...Thankyou for explanation...It is a shame my gd77 cant be improved on RX on DMR, otherwise with open gd77 in it the rig is great. 73 de Les These radios are super cheap, so you get what you pay for. The transceiver chip literally costs $1 USD, and is direct conversion and suffers from a v...
by VK3KYY
Thu Feb 29, 2024 9:57 am
Forum: GD-77 / DM-1801 / RD-5R / GD-77S
Topic: Experimental version to help DMR breakup
Replies: 54
Views: 26001

Re: Experimental version to help DMR breakup

My GD77s use a firmware version Mar 4 2023 efc2c8b D . Have the firmware versions since these posts include the alteration to improve the dmr receive side. Can this timeout be adjusted or what please ? 73 de Les G0FAJ This thread releates to a post I made in 2020, so the information in it is totall...
by VK3KYY
Thu Feb 29, 2024 9:55 am
Forum: TYT MD2017 / Retevis RT-82
Topic: TYT MD2017 / Retevis RT-82 Public Alpha 2.0 version
Replies: 36
Views: 1489

Re: TYT MD2017 / Retevis RT-82 Public Alpha 2.0 version

SP9RQA wrote:
Thu Feb 29, 2024 9:48 am
Hello.

This is my first post on this forum.
I own an MD2017 with serial no: 1806D00643.
The display and keypad are working fine, but I have also noticed increased power consumption in RX mode.

Chris.
How much additional current in Rx. i.e how many mA ?
by VK3KYY
Thu Feb 29, 2024 9:30 am
Forum: GD-77 / DM-1801 / RD-5R / GD-77S
Topic: Experimental version to help DMR breakup
Replies: 54
Views: 26001

Re: Experimental version to help DMR breakup

My GD77s use a firmware version Mar 4 2023 efc2c8b D . Have the firmware versions since these posts include the alteration to improve the dmr receive side. Can this timeout be adjusted or what please ? 73 de Les G0FAJ This thread releates to a post I made in 2020, so the information in it is totall...
by VK3KYY
Thu Feb 29, 2024 8:52 am
Forum: TYT MD2017 / Retevis RT-82
Topic: TYT MD2017 / Retevis RT-82 Public Alpha 2.0 version
Replies: 36
Views: 1489

Re: TYT MD2017 / Retevis RT-82 Public Alpha 2.0 version

I also found out: - battery consumption high, especially when tx I have tested the current consumption at 5W Tx and its 1.3A. This is much less than the MD-UV380 at 5W, which consumes 1.7A Please reload the official firmware, and check the power output on the High power setting, and measure the cur...
by VK3KYY
Thu Feb 29, 2024 8:36 am
Forum: New members must post here first
Topic: Hi from PU2TSL
Replies: 1
Views: 42

Re: Hi from PU2TSL

The logo is not copyrighted, so you can use it.
by VK3KYY
Thu Feb 29, 2024 1:54 am
Forum: Bug reports
Topic: RX issue with fluctuating field strength ?
Replies: 8
Views: 463

Re: RX issue with fluctuating field strength ?

It is the same with the GD-77 and the RD-5R. Always the same like in the Youtube Video: https://www.youtube.com/shorts/zXnxGUW-nK8 If the problem would only be on a single radio, I could imagine to change the chip, but are both defective ? I do not have an air soldering iron, but a jet lighter :) W...
by VK3KYY
Wed Feb 28, 2024 10:19 pm
Forum: Bug reports
Topic: RX issue with fluctuating field strength ?
Replies: 8
Views: 463

Re: RX issue with fluctuating field strength ?

Hey guys, I found out some information: It does not matter if the radio is in channel-mode or VFO-mode. I can hear people on a frequency, after some time, or the person switched (with or without squelsh) the voice quallity gets worse. After switching the channel or frequency and switch back, it wor...