This 2.4 GHz walkie talkie has surprisingly long range
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- čas přidán 23. 07. 2024
- Testing out the Motorola DTR 2450 against the Retevis RT27. One is 2.4 GHz, the other is 446 MHz. Who will win?
Time codes:
0:00 Explaining test setup
0:53 Presence checking demo
1:35 Range test Location 1
1:54 Range test Location 2
2:07 Range test Location 3
2:35 Range test Location 4
3:29 Range test Location 5
3:53 Range test Location 6
4:45 Conclusions and summary - Věda a technologie
Nice test - they were very clear and surprising distance I thought 👍👏👏
I have the model DTR 550 and DTR 650, pretty great radios with the digital aspect instead of the analog, works well and preforms well in certain areas while on bike rides
The spread spectrum is the great. Outside of california where the 900 MHz ism band isn't flooded the range is actually really good.
Very interesting to see. Ringway Manchester has recently done a video about this, and will be doing a range test too.
I saw that. He beat me to it! I thought I had a unique idea with buying this radio haha
@@radiosification Great minds eh?
Notice how the digital transmission does garble a bit the further away you go,analogue does not but it carrys to much white noise so its a difficult choice for some. ive seen american reviews of DMR and again it carrys that garbled audio which you dont get with analogue but does seem cleaner at shorter range.
I would recommend try it out with roof top antenna - should make quite difference
Great vid 👍
Thanks!
The quality of the Motorola stands out. The difference between 0.5 watts and 5 watts is only 1 signal point at receiver, although audio normally has a better increase.
Neither of these are 5W. The 2.4 GHz radio is I think 100mW.
Used to 900mhz wireless phone back in the day, they werre awesome. i upgraded to 2.4ghz and the range sucked. That was before I understood longer wave lengths are better.
Hey great video. These remind my of some i355's I had. Where did you get them if you don't mind sir?
Thanks! They're not manufactured anymore, but I found some used on ebay. If you're in the US or Canada you can get the DTR 700 instead which works on 900 MHz and is newer but operates with the same technology. Or you can get the 900 MHz version of the DTR 2450 which is called the DTR 650.
@@radiosification Thanks for the information on these. I'm from the UK too, I'm interested as they're licence free. I remember the i355's needed Nextel sim cards in order for them to be able to operate as a two way radio or 'direct connect' as they were calling it back then, the 900mHz were great for penetrating walls and good in the city. Anyway thanks again, keep up the great content 👍
@@starrcadeius there are some really cool videos about the i355s on CZcams. I remember seeing a range test out in the US where they had a guy driving miles away and talking. I remember really wanting some of those phones/radios haha
Analogue sounds much better.
I had some of these about 7 years ago they used to upset my old WiFi router a lot
where the heck do i get some of these in australia
they're not manufactured anymore so it's difficult. Just look out on auction/selling websites for them.
Nice Radio can you hear any other users on them ?
I never have. They're pretty rare and the range is quite short
@@radiosification oh ok I see well thanks for answering my question
Hi radiosification.
73.
TKS!
Hi!
I’m new to this and really confused, so these are my professional radios but their range is a mile???
Yes, what's confusing about that? Professional doesn't equal long range. In fact you'll find that amateur radio operators can achieve much longer range than most professional radios
@@radiosificationIs the mth 850 better?
@@nixter31 not by that much since tetra radios have pretty bad range and you'd require a licence for that radio
@@radiosification Well yeah I have applied for the license so I am in the market for a strong radio but I saw a video where someone managed to get 35 km range with a mth 800
@@nixter31 which licence? The type of radio you can use depends on the licence. Tetra uses 25kHz wide channels and most business radio licences will only allow 12.5 kHz
There is a Analoge 2.4Ghz Walkie Talkie for sale at the Aldi Right now, maybe cool for your video`s
That sounds very interesting but I was unable to find it with a quick search of their website. Any chance you have a link please?
@@radiosification Bro I have seen your Reply, run to the shop and got a pair.
Will upload a short video for (upload will be from my other channel)
Are you sure there's no link or even a product name? It's quite a hassle for me to go all the way and I don't know if I'd even find it with so little detail. It would be really helpful if you could give me something more to work with
@@VicGreenBitcoin if you upload a video can you send me the link so I can look?
@@radiosification No sure if CZcams let me send the link: czcams.com/users/shortsai_JnC3KBgc
The Retevis is not an official PMR446 radio and the min power is 1 watt. However interesting test the Motorola would be more concentrated on local use. I wonder if you could tap into the 2.4ghz and make a repeater using WiFi Router's 🤔
They sell is as a PMR446 radio and it says 0.5W on the back.
No you can't use WiFi routers on the dtr radios, they use a completely different system that won't be able to communicate with WiFi. It would be cool though if you could
Pretty neat unique variant, 2.4 is a crap band though i would honestly just get some of the 900mhz normal ones exported and pirate them. FHSS doesn't give off much of a noticeable signature and you'll always be on the move anyways so no big deal.
These Radio Transmit on DMR,
Where did you get that info from?
You don't post a lot
Yeah, ran out of things I wanted to make videos about
@@radiosification oof still gonna sub
H