Radioddity GD-73E License Free Digital Radios (PMR446, DMR Tier I)
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- Опубликовано: 10 сен 2024
- Discover why license free digital radios such as the Radioddity GD-73E are so popular in Europe.
Part 1 - Radioddity GD-73E on Amazon* ➜ geni.us/UTJi0
Part 2 - Unboxing ➜ (3:50min)
Part 3a - Range Test Analog ➜ (10:27min)
Part 3b - Range Test Digital ➜ (13:21min)
Part 4 - Summary & Conclusion ➜ (16:02min)
*Only available in select countries within Europe.
In this video I show you two license-free digital radios from Radioddity.
The maximum range is achieved in my opinion only under ideal conditions.
Realistic is to assume a shorter range, because houses, trees and other obstacles swallow the signal with increasing distance.
Since, according to the law, PMR446 radios are not allowed to have a replaceable antenna and only a very low transmission power of 0.5 watts, it is perfectly normal that these radios are only intended for short-range use.
At first glance, a short range seems disadvantageous, but if you think about it, it also has advantages.
In a city with many users, e.g. the simultaneous transmission on the same channel are rather avoided, so users are not constantly bothering each other on the only 8-16 available PMR frequencies.
In addition, the low output power protects the battery, and you can use the radios so longer.
In addition, with a high range and more people could overhear, which is also avoided by the weak transmission power. Because a potential eavesdropper would always have to be close enough to receive the signal at all.
In my test, the communication was very possible, however, the quality can decrease with increasing distance.
As I said that is perfectly normal, and so provided by law.
Although the range was significantly shorter in the analogue test than with other devices, for home use, the close environment, or camping, you can still use the very compact digital radios well.
However, the configuration via software can be significantly more complicated for beginners or people using a Mac, because you have to use Windows and install a USB driver.
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Tire One TDMA (Time Devision Multiple Access) ONLY One Time Slot can be used! Tire two a bace station provides synchronisation to allow both time slots to be used?
dPMR446 uses FDMA ( Frequency Devision Multiple Access) upto 32 Real Channels! DMR is Wasteful in Tire 1 mode, Business use TDMA Tire2 mode on Licenced Frequencies with a Bace Station
I am partially familiar with it, there is a good article for beginners here:
➜ dpmrassociation.org/dPMR-mode1.html
Please I need your help. I want to buy a small talkies walkie powerful to use it on boats cruiser with my family. They have to be small and long batteries live and powerful thank you very much
Generally radios are either licence free, or require a licence, so please be mindful of that.
If you are on a cruise ship and you visit different countries, please be careful if you arrive in a different port, because the government can pick different frequency for there country.
For Europe, PMR446 should be fine, however, using a two-way radio on a cruise ship may be tricky if it is big and the metal absorbs all the signals.
@@ReviewTechTV at Sea in international waters if you ask Permission you maybe allowed to use them!
DMR always sounds nasty
Yeap, unfortuntly analog sounds better.
Not keen on these hytera does a similar looking radio which has analogue and digital antannae on the hytera is excellent on analogue and digital modes it also charges via mini usb but this is located on the side the radio has solid metal surroundings and a carrying case it slides into on analogue I've had 4 miles no problem and digital 3 miles much greater ranges achieved hill top to hill top digital 25 miles analogue 50 miles sound and mic quality from hytera radios are superb obviously much more expensive than the radiodditys which look cheap and nasty.definately not one I would personally invest money into.
Keep in mind I did only use 0,5 watts, obviously with 2 watts it would have performed better.
@@ReviewTechTV my hyteras are only 0.5 watts but the mini antannae pulls signals in perfectly don't get me wrong the radiodditys are still good for the price and good on digital would have been intresting to see the peak distance of digital.but definately let down by analogue.
Do you mean 170USD+ Hytera PD505LF ? I don't see any other model that has PMR and DMR and is license free in EU.