Detailed review of DMR digital radio station Retevis RT3S with direct frequency input, call recording and GPS receiver.
Completion, design and management. Software Review. Checking the output power, receiver sensitivity. Adjacent channel selectivity measurement.
Measuring consumption currents and determining the operating time. Demonstration of reception and modulation. Transmission of GPS coordinates. Demo mode for recording conversations. Checking the stock antenna. Identified disadvantages and advantages of the radio station.
The official Retevis store on AliExpress for this radio model - aliclick.shop/r/c/1rnr81p93a9...
Video episodes:
00:00 Entry
01:50 Equipment
04:08 Construction
06:18 Management
16:00 Software
21:46 Output power
22:44 GPS position receiver
25:05 Consumption currents
30:17 Opening hours
31:24 Sensitivity
32:58 UK selectivity
34:57 Speaker reception and volume
36:52 Modulation
37:12 Recording of negotiations
39:33 Standard antenna
40:45 Conclusions
Equipment used in the video:
- A set of RF connectors Anli YC-30 - viva-telecom.org/6969/anli/yc...
- Laboratory power supply Owon P4603 - hviva-telecom.org/14511/owon/p...
- Desktop multimeter Owon XDM3051 - viva-telecom.org/14499/owon/x...
- Sound level meter Victor 824 - viva-telecom.org/14502/victor...
- Reflectometer E621
- HP E4400B Signal Generator
- TinySA Ultra Spectrum Analyzer
- Deepelec DeepVNA 101 vector analyzer - aliclick.shop/r/c/1rnic6hmdx6...
Radio communication tutorial from Viva-Telecom - • Учебник по радиосвязи ...
DMR digital training video - • Протокол DMR. Обучающе...
DMR encryption - • Шифрование в DMR. Обуч...
Rating of the best manufacturers of radio stations - viva-telecom.org/articles/bes...
The results of testing the parameters of all radio stations in the Viva-Telecom laboratory: viva-telecom.org/articles/tes...
The results of testing the operation of all radio stations in urban conditions from Viva-Telecom: viva-telecom.org/articles/tes...
Adjacent channel sensitivity and selectivity video - • Определение чувствител...
A video about measuring the SWR of portable antennas - • Измерение графика КСВ ...
dBm to µV sensitivity conversion calculator - viva-telecom.org/articles/dbm...
Radio station operating time calculator - viva-telecom.org/articles/bat...
Photo reviews of our products: viva-telecom.org/fotos/new/
About Viva-Telecom: viva-telecom.org/company/
Our news: viva-telecom.org/news/
Our VKontakte group: viva_telecom
#retevis
12 июн 2024