Experimental Baofeng RD-5R version

[IU1MCR]

Hi Daniel,
je suis d’accord .
Thank you for your work
Buonanotte
Eugenio

[VK3KYY]

Hi.
Great action.

For me 136-144Mhz, 148-171Mhz and 451-470Mhz Tx "ERROR OUT OF BAND".

Is it right or wrong with me?

Thanks for the info.

https://github.com/rogerclarkmelbourne/ ... and-limits

[W1CY]

Many thanks. I will load the firmware tomorrow on one of my RD-5R radios.

I will keep the other with the original firmware for comparison purposes.

[SO5AJG]

There was a problem with the battery indications (RD-5R). At the indicated battery level of 31%, the battery measurement indicator on the radio shows 6.7V and in this state the inscription low battery appears and only this inscription and nothing can be done with the radio. The meter measurement shows 7.4V when the battery is disconnected. When the battery was fully charged, it showed 88% charge.

[VK3KYY]

There was a problem with the battery indications (RD-5R). At the indicated battery level of 31%, the battery measurement indicator on the radio shows 6.7V and in this state the inscription low battery appears and only this inscription and nothing can be done with the radio. The meter measurement shows 7.4V when the battery is disconnected. When the battery was fully charged, it showed 88% charge.

7.4V is far too low for a fully charged battery.

Chargers should charge a 2 cell pack to at least 8V

I just googled LiPo cell charging voltage and there is plenty of information you can read

E,g.

https://blog.ampow.com/lipo-voltage-chart/

[SO5AJG]

A fully charged battery up to 8.32V on the display shows 88% charge

[VK3KYY]

A fully charged battery up to 8.32V on the display shows 88% charge

The percentage value vs the voltage is the same for everyone.

The battery menu in my radio shows 8.1V at the moment and the main display shows 94% which is consistent with this.

[LY1RF]

can we calibrate voltage reading in radio? the same battery shows different voltage on different radios

R.

[SO5AJG]

Sure, as you wrote, the Baofeng equipment control is not perfect and the individual copies differ in the quality of workmanship and the matching of the parameters as can be seen on the calibration parameters of each radio separately. I noticed on the RD-5R the same problem as in GD77, which I wrote about earlier, namely when prolonged listening to the same pair of talkers, there is a tremor of sound that can be removed by turning off the radio for a moment or sometimes pressing the function button.

[W2RAU]

Need help with two issues:

First, I cannot get the new OpenRD-5R firmware to talk to either of my two MMDVM simplex hotspots. Both worked fine with the original firmware--with minimal offsets (-25) and a BER of .2 With the new firmware the hotspots are receiving no signal. Thought it might be simplex and that the firmware might be waiting for a repeater acknowledgement to continue TX, but straight simplex works fine with the new firmware. Also, using the same codeplug, a GD-77, upgraded to the new firmware, has no problem being recognized by the hotspot. Any ideas of what the problem might be?

Also do not understand what the "Power" indicator in the display is supposed to represent. It is not showing the correct power-level of the channel from the codeplug. Nor does it change as one cycles through channels with different power levels (e.g., hotspot channels vs OTA channels). Do I need to manually set the power level for the channel I am using?

Thanks for any help on these issues ..