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How to do when your RT3S locked on 150Mhz frequency

Help My RT3S wont key up below 150Mhz and 450Mhz, how do I get it back to normal frequency?   ...

Read more  RT3S lock to 150Mhz,  Retevis RT3S

How to set Analog APRS on Retevis RT73

please make sure your RT73 firmware version above than the 20210329 version. Because the APRS feature was added on 20210329 version firmware.  ...

Read more  Retevis RT73 APRS

How many ISS SSTV Images have you Received?

ARISS report there will be an “Amateur Radio on Shuttle, Mir and ISS” Slow Scan TV (SSTV) event from June 21-26. Transmissions from the International Space Station will be on 145.800 MHz FM using PD120.   ...

Read more  ISS SSTV,  Slow Scan TV (SSTV)

Codeplug Editor for Retevis RT73

David Bell who create a codeplug editor for Retevis RT73, it is also beta version.  ...

Read more  RT73 codeplug editor,  RT73 CPS editor

What is the Difference between CTCSS and DCS on Two-Way Radios?

When using two-way radios or walkie-talkies, we all use CTCSS/DCS or Motorola system PL tones or DPL.  It is divided into CTCSS and DCS. Both CTCSS and DCS are all used on analog two way radios. Do you know what is the difference between CTCSS and DCS?   ...

Read more  CTCSS and DCS,  difference between CTCSS and DCS

Why use Temperature Control Fan on RetevisRT73?

Retevis RT73 temperature-controlled cooling fan can control the air pressure and air volume of the fan through the temperature change in the vehicle-mounted station to achieve the effect of energy saving.  ...

Read more  RT73 temperature control fan,  Retevis RT73

Is there an NGP antenna suitable for RetevisRT73?

Which NGP antenna suitable for RetevisRT73? MR200 U/V Dual Band NGP Antenna and NMO Mount  ...

Read more  NGP Antenna,  NGP antenna for RetevisRT73

How does the TimeSlot Works on RetevisRT73?

How does the TimeSlot Works on RetevisRT73?  ...

Read more  Retevis RT73 DCDM

Can you Monitor Different Color Code on Retevis RT73

Can you Monitor Different Color Code on Retevis RT73? The answer is Yes.  ...

Read more  Monitor color code on RT73,  Retevis RT73