MULTIPLE trumpets! I assume there's one right behind each of those holes!
@tettorotto3 ай бұрын
I find it kind of funny that the way the controls are laid out on the repeater clearly shows that they're reusing the same circuit boards from the handsets
@jameswyatt13043 ай бұрын
Think how much this improves repairability. Even if you can't get new boards, all organ donors work for handheld or repeater/gateway
@robertthomason89053 ай бұрын
Caveman here. 2 Way
@ianfinn21103 ай бұрын
First like. Love your work, boss. I’m new to the space, and your content was a primary source of inspiration.
@RichMantaray3 ай бұрын
u need to test this more :) wish they sold the radios on there own :( ul need to test the distance of just the 2 radios ,,,, then put the repeater in the middle see how much more distance u can get :) ,,,,, next test would be to have 4 radios and daisy chin them to see how far u can get,,,, but this would be perfect for car to car coms
@briantheminer3 ай бұрын
The radios are for sale separately though not sure if a network will set up without the base station repeater 🤔 I’ll let you know when my system arrives in a week or 2 😅
@Boodieman723 ай бұрын
Sounds like a mesh network. Might be a good idea for festival workers, etc.
@andykirby3 ай бұрын
Nice rog! We need to test them soon 👀
@wisteela3 ай бұрын
Absolutely awesome. With the addition of a solar panel you've got your own infrastructure should anything bad happen. Very odd that the speaker is marked trumpets. 73 M7TUD
@thomassecurename31523 ай бұрын
An! A return to Ringway Manchester jingle. Missed you.
@fotografm3 ай бұрын
Interesting stuff and a great new technology. The Amazon websites make no mention that an amateur radio license is required for this equipment. I can just see it springing up at building sites all over the place and causing interference to licensed users of this part of the spectrum, which is also shared with simple remote controls, tyre pressure gauges, remote weather stations etc. aswell as radio amateurs. The handhelds are also available separately (without the repeater) in pairs or in sets of 30 !
@UKsystems3 ай бұрын
One very important thing about use of the ISM bands is very strict and limits on erp I have seen so many people saying how some antennas boost performance so much but they are illegal and Ofcom are cracking down
@jplacido99993 ай бұрын
You are right, sir....
@superpieton3 ай бұрын
Absolutely. ISM433 is limited to 10mW EIRP all over Europe. Exceeding this radiated power is illegal pretty everywhere in Europe.
@gordslater3 ай бұрын
Latest rumour is the Version-2 model has crumpets
@new_fone_who_dis3 ай бұрын
Always amazes me that they cannot get a proof reader to correct the chinglish. Surely even Google translate would be better 😅
@tcpnetworks3 ай бұрын
Noice.... Hopefully with Vegemite.
@cdl03 ай бұрын
Crumpets would be in the UK version only, of course. The US version probably has blueberry muffins. 🙂
@wisteela3 ай бұрын
@@cdl0 I believe there is a limited addition Eggos one.
@wisteela3 ай бұрын
@@new_fone_who_dis It does surprise me for Retevis.
@kapilangra3 ай бұрын
Cool...nice find. I was wondering when we would see lora voice devices show up...and as you said its perfect for off grid coms. Would be cool to see radio companies like Icom and Yaesu incorporate lora/meshtastic into there devices...all in one jobbie !...or is that a stupid idea?
@peterh92383 ай бұрын
I am amazed just how cheap stuff is getting. £265 for your own 5w UHF digital 'secure' ish repeater system with two handsets. I have no need for one, but it would be interesting to play with the repeater setup and see what other 'features' are available.
@G0TT3RFUNK3N3 ай бұрын
Hope they add ip/tcp data modes thru ethernet/bluetooth ability with mesh. Something which should have already been available in HTs years ago. So we could link our Atak with bluetooth to these radios and start seeing our green dots on the map and sending COTs and data. Even if just 1-16mbps would be really really great.
@saxpert3 ай бұрын
HI Lewis, interesting. The most important thing for me with Repeater is the delay time. Did you measure the delay between starting tx til beginning audio output at the receiver? Did it vary? Or do you have to complete a transmission before the Rx can start?
@djmambito23 ай бұрын
As far as i can see it is 2 timeslots ...1 RX and 1 TX ... what comes in goes out immidiatly ... so the delay will be very little , in the mSec range or nomore then what is needed to convert ...it is not like the known analog-repeaters (parrot) ...there's no recording and then retransmit ... it goes in and out at practically the same moment.
@RobCanada3 ай бұрын
Andy, how many hops can these radios do, the website says 30 levels? Could you have two repeaters on two hills with handsets at each location and all talk together e.g Handset1 Repeater1< 10 miles >Repeater2 Handset2. At £50 per radio I can see everyone dumping Meshtastic and putting these up instead. :) Also are there any timing advance range issues? Or does this type of modulation not rely on timing? Thanks for posting :)
@KarlHobson3 ай бұрын
Just ordered....could become popular....if it works as it should...thanks for the heads up Lewis
@jplacido99993 ай бұрын
Be carefull on the legal issues
@KarlHobson3 ай бұрын
@@jplacido9999 please clarify legal issues.....I don't believe if used on the correct or licensed frequency there will be any......but if you think otherwise please share 🙏
@jplacido99993 ай бұрын
@@KarlHobson You are very carefull and that is great to avoid problems..👍 433-436 MHz is in the radioamateur band. Ham use is subjected to previus recognition of modulation methode by Gov rullers. The non ham use is out of question because of the same and also the stated power output (5W versus the 10 mW for voice comms on the LPD license free band. Please ask first to the Gov departement related to Comms for the general public...
@JoshuaFawcett3 ай бұрын
Launch key and trumpet are the best features lol.
@Nick_G7IZR3 ай бұрын
6:04 Ofcom define a gateway as "radio equipment for the purpose of connecting to another non-amateur network" (eg the internet) so not sure it's a gateway if its doing ham to ham via radio. Can it be programmed to work on Loran frequencies instead of ham? If the transmissions took place on 70cms, were sent over loran (863Mhz) then back out to 70cms, that would be an off-grid gateway. Or if it worked on 863 full stop, then it would be licence free for all to use.
@212MPH3 ай бұрын
What's the codec and bandwidth for the voice call ?
@rjy89603 ай бұрын
I think the underlying thing is that you need to bear in mind is that you need to have an Amateur license to use them. Maximum output for license free (unlicensed) LPD 433MHz use is 10mW. If you do have a license and use them, just be careful not to spanner any repeaters that are in the area. Do you really need to take up almost 500kHz of bandwidth for what is effectively a narrow-band voice channel?
@j.dietrich3 ай бұрын
LoRa uses a comparatively wide bandwidth, but that also means that the spectral power density is extremely low - the transmit power is spread much more thinly than with a narrowband mode. It can maintain a reliable link with a signal that's tens of decibels below the noise floor. If you're listening with a narrowband receiver, you probably won't hear a LoRa station even if it's literally next door.
@rjy89603 ай бұрын
@@j.dietrich It would be interesting to see how this will co-exist with narrow-band FM use - 5W output is quite a significant amount of power to use over a 500kHz channel and whilst spread spectrum is great at providing interference rejection from narrow-band and other spread spectrum systems, the impact of discrete carriers within a narrow-band channel can be problematic. As a case in point, G.hn / Powerline networking is spread spectrum and its launch power is nowhere near the 5W that these things use. I am sure you are aware of the significant issues that these systems cause to HF reception. I am skeptical and would like to be proven wrong by seeing the results.
@djmambito23 ай бұрын
The specs say 125 Khz
@mikerobertsn3 ай бұрын
@@rjy8960these are UHF, not HF
@janmo5193 ай бұрын
Maybe its a kind of MMMT63 - Multi Massive MT63😂
@MarcBirks3 ай бұрын
Nice these look the business to be fair liking the design simplicity
@greyshadow94983 ай бұрын
I assume this will only use it's own internal mesh? The ability to tap into some public LoRa networks like Helium would greatly increase it's range.
@Bluelagoonstudios3 ай бұрын
We (electronics nerds) are into this too, but with IoT small microprocessors, like ESP and Pi or Arduino with break out boards. And it works very well. I'm building a new PC and there will be a hub inside with this technology. And extern antenna's as well. And it travels far, for these low power things.
@jplacido99993 ай бұрын
External antennas are illegal in most Countries
@Bluelagoonstudios3 ай бұрын
@@jplacido9999 Not if you have licenses, I have other antennas as well.
@jplacido99993 ай бұрын
@@Bluelagoonstudios I meant the licence free units. The ERP is regulated and the simple fact of an external fixed antenna is there in place is generally regulated all over the world. I think you could not get a license if you state this equipament ....
@Bluelagoonstudios3 ай бұрын
@@jplacido9999 c'mon man, ERP is about 0.8w do you really think this makes a big difference? I'm not talking about 100w DAB+ multiplexers.
@jplacido99993 ай бұрын
@@Bluelagoonstudios Most Countries don't care except if there is harmfull interference... So it is not a big deal with low power, and the range is nice (LOS)...👍
@RichardGilmoreDronetech3 ай бұрын
Can 2 or more Repeaters be used in the system so that they can pass Comms to extend range even further again with outdoor, highly positioned antennas??
@ryanl4175Ай бұрын
That's my question as well
@kurtstefans57383 ай бұрын
Another good vid. I wonder what the audio latency is from radio to radio with and without the gateway. Also if the latency get worse with a lot of interference.
@KeystoneInvestigations3 ай бұрын
Sounds great but can I use it to place my order with the Chinese takeaway?
@kennethausten3 ай бұрын
Been looking into meshtastic. This is another step forward. No use for it myself unless it could use the meshtastic , then the sky is the limit..
@tcpnetworks3 ай бұрын
After playing with LORAwan setups and finding them wanting (mainly because it was being used for asset tracking) this piece of kit could be useful in Australia.... Only if I can get a frequency shift....
@FayeClegg3 ай бұрын
Secret MI5 North headquarters. Pilsworth Way, Bury.
@topsac32832 ай бұрын
Nice Lewis.... Thanks 👍👍👍👍👍
@over-engineered3 ай бұрын
I would think such a system would only useable in the UK on the 70cm ham band by licensed amateurs. Reason is it’s far too powerful for use on the ISM band and far too wide bandwidth for use on PMR frequencies.
@ethanturner51643 ай бұрын
Why isn't it possible to use this for pmr 446
@over-engineered3 ай бұрын
@@ethanturner5164 PMR446 has 12.5KHz channel spacing, 2.5KHz modulation, is a specific spec. and limited to 1/2 watt. Although we don’t know, I suspect this uses a wider bandwidth to get the performance.
@JakobBuis3 ай бұрын
@@over-engineered website says it's 125kHz bandwidth, so about 10x yeah
@over-engineered3 ай бұрын
@@JakobBuis there you go, 125KHz, way too wide for any PMR channel
@RT-qd8yl3 ай бұрын
I think these are mainly for situations where band restrictions and comms laws would no longer be forefront in people's minds
@myballwilson3 ай бұрын
Thanks!
@RingwayManchester3 ай бұрын
Thank you so so much!
@thexfile.3 ай бұрын
In America, we have something similar the farmers use them on big farms.
@rmetcalf893 ай бұрын
What's that?
@retevisQA3 ай бұрын
Hi friend, do you mean crossband repeater and HT?
@tcpnetworks3 ай бұрын
Funny - because we are looking at exactly the same thing in Australia - some of our properties here (a single farm) is as large as a state in the land-of-stupid. One farm is running three linked 477MHz repeaters to cover it - because the curvature of the earth interrupts LOS. Looking at this system - yep... Could be useful.
@jplacido99993 ай бұрын
@@tcpnetworks It would be cheaper for you to became a flat earth enthusiast the LOS problem would go away....😂😂😂😂😂 Aside jokes, that 433 MHz is not legal for farms. Even for hams I'm shure it will require a special permit. Don't change, it wouldn't work anyway....
@tcpnetworks3 ай бұрын
@@jplacido9999 433 and 477 are leagal classes here in the land of Oz. I prefer 477, because it's got more in the way of OTS equipment.
@johnsurdy3 ай бұрын
How much delay is there per hop?
@LilliSeahorse3 ай бұрын
Do you know if you can network 2 of the repeaters together? For even greater range, especially in hilly country? And of course Amazon says it's currently unavailable.
@Tony-iz8qn3 ай бұрын
Its to bad these don't come in the license free frequency range most lora devices use.
@kuyavenzinfovlog2 ай бұрын
Can we join different brand of radio using same frequency of the lora radio box?
@pederb823 ай бұрын
Big no go with this network, especially for iot is the limit on amount of calls on the network each day. It’s not a hight number at all so unusable for anything like an hourly or so update from some sensor. Is there no limit on usage on the voice part?
@MPLS_Andy3 ай бұрын
Damn your hair be lookin dope bro
@tonyweavers42923 ай бұрын
Is this some kind of middle earth syntax?
@Milcom343 ай бұрын
Thanks RM. Interesting Little Radio Set up****
@jamesa29613 ай бұрын
Rad video as always
@mikerobertsn3 ай бұрын
Any idea what the sensitivity of these would be. Normal DMR is around -118dBm assume these would be somewhere down near -130dBm or lower.
@taylor7668US3 ай бұрын
Interesting setup I guess there will be people using this on 446 ! Not worth the risk of my ham license
@Parax773 ай бұрын
is every handset considered a gateway?
@daveh77203 ай бұрын
I wonder what a handset will do if you press the PTT button while it's relaying a signal from another radio. Does it give a "wait" tone?
@RingwayManchester3 ай бұрын
It does yes
@radiosification3 ай бұрын
Wow, now this is very interesting
@IndaloMan3 ай бұрын
Why are the repeater images upside down?? 🤔
@fluxington3 ай бұрын
Because the back plane is effectively the top of the unit. There are some images with it up the 'right way'.
@tonyweavers42923 ай бұрын
That 12V Input looks like it was bodged on last minute. Aliexpress has these listed for £430! Too much for me!
@ianharvey8683 ай бұрын
I wonder what limits it to just 30 radios? Shame you can't buy the retevis rb24 separately
@djmambito23 ай бұрын
you can buy a set of 2 radios without the repeater.
@Bond20253 ай бұрын
Good idea, but not practical due to the channel utilisation. A couple of people doing a voice call would flatten the network. In the North West I can pick you up at times via repeaters/nodes, but if people start sending anything the channel is full.
@djmambito23 ай бұрын
It's like a ham-radio-repeater , only to be used by licensed hams ...they have their own analog repeaters also and those channels are not full , they just wait untill it is available or use a repeater on a different channel .. so no such a thing as a "full" channel
@radiotowers11593 ай бұрын
So you need a Radio Amateur License to operate ?
@ianharvey8683 ай бұрын
Yes, legally anyhow, as a system uses very wide bandwidth you can't operate it on any business licence as they only give you 12.5khz space, obviously it's too high power and too wide bandwidth for pmr446/gmrs etc... It's use is only suitable on the ham band as you can use wide bandwidth but if you have the idea of the 70cm ISM the problem there is that equipment can only legally do 10mw, these do 5w
@jplacido99993 ай бұрын
@@ianharvey868 And the modulation scheme must be approved by Ofcom or similar....even for hams
@fotografm3 ай бұрын
No further comments ? Has anyone ordered one yet ?
@jhonsiders60773 ай бұрын
Are these a simplex or a duplex system ? And do they use a sub audible tone to keep just anyone from using it ?
@ianharvey8683 ай бұрын
It's not analogue so no, the "repeater" technically isn't what we call a repeater in the normal radio comms world so as it's not got 2 antenna socket or built-in duplexer it's not a duplex system, however LoRa does "interconnect" and pass messages through, this function works on the handsets too as far as I can see
@fotografm3 ай бұрын
"Trumpet" LOL
@rachelslur87293 ай бұрын
good video, thank you
@ek87103 ай бұрын
Trumpets
@flapjack94953 ай бұрын
🎺🎺🎺
@MONTY-YTNOM3 ай бұрын
Trumpets ? They need better translation software.
@flapjack94953 ай бұрын
🎺🎺🎺
@TheKingOfInappropriateComments3 ай бұрын
I love this idea. conventional repeaters are losing their sites. A mesh network of backyard repeaters that don't require the internet is a better way to do it if you can get enough people on board.
@sandypiazza7254Ай бұрын
Domenica ne testiamo 5 rb 24 e 1 rb 91 dopo test vi informo !
@Phone_Geek3 ай бұрын
Interested in the legality of people using this without a licence, which inevitably will happen. You know my line of business, so for me the interference at 433 is of concern
@eadweard.3 ай бұрын
What's "Trumpets"?
@flapjack94953 ай бұрын
🎺🎺🎺🎺🎺🎺🎺🎺
@briantheminer3 ай бұрын
Brilliant idea, something else to try I’m guessing Retevis are going to sell these like hot cakes
@briantheminer3 ай бұрын
Got mine delivered with 5 handsets, I’ll let you know……
@briantheminer3 ай бұрын
I have found they’re on 471 frequency range, way out of the 430 specified in its blurb, and a bit illegal here no doubt
@davidbrant8617Ай бұрын
@briantheminer how are these working out for you?
@briantheminerАй бұрын
@@davidbrant8617 quite honestly, brilliant!! The only negative is because of the inbuilt repeater,there’s about a 1 and a half second delay between pressing trigger and transmitting I’ve not messed about reprogramming yet, but could be even better then
@davidbrant8617Ай бұрын
@briantheminer Awesome yea i dont think that would bother me to much, I have been looking at these heavily there isn't much out there on them. Thanks for the feed back.
@davesmith50923 ай бұрын
Wonder about the legality in the US.
@jhonsiders60773 ай бұрын
I bet ok till some sad ham complains!
@jplacido99993 ай бұрын
@@jhonsiders6077 Everybody wants to do what they like, until a neighbour has the same ideia...than what...no complaint ?...just let it be ?...
@robertmitchum29723 ай бұрын
I was wondering the same exact thing. Tried to lookup the legality of this setup here in the US but didn’t get to far… According to Retevis, it is legal in the US. But I take that info with a grain of salt. I will have to contact the ARRL on the legal use of this system here in the US.
@janosnagyj.95403 ай бұрын
"trumpets" ? 🤔
@flapjack94953 ай бұрын
🎺🎺🎺🎺🎺🎺
@wernerdevos10742 ай бұрын
The RB91 is nothing more then a RB24 in a metal case. I heard the fan is working all the time and noisy.
@superpieton3 ай бұрын
5 watts on LoRa is *strictly reserved* to ham radio. It's totally out of the european 10mW EIRP limit for ISM433 usage. Those chinese chitty gadgets are RUINING the 70cm amateur band because of non-hams buying and using them without proper licence! I hope it's not encrypted, or it will not be usable by amateurs, which would make that thing illegal because ISM433 is 10mW EIRP and amateur radio has to be unencrypted.
@briantheminer3 ай бұрын
It could be said that these. Chinese radios are increasing the interest in amateur radio though, some are starting to use them, learning more and going foundation?
@elsuperpollo22733 ай бұрын
This repeater should only be accessible to licensed amateur radio operators too many loop holes, for meshtastic users.
@RingwayManchester3 ай бұрын
There’s no loopholes? You have to have a licence…
@barrieshepherd76943 ай бұрын
@@RingwayManchester Like a TV they will operate without a license 😂😎so quite possible they end up being used illegally. !
@W4TRI3 ай бұрын
Have to wonder if they are legal for USA use. You c an buy them so it won't be long before these are the new "Freeband" radios. The camels nose is under the tent again FCC!
@jhonsiders60773 ай бұрын
Until some sad ham complains! Which they always do !
@W4TRI3 ай бұрын
@@jhonsiders6077 Ok you sold me! Buying a setup just to P SS off Sad Hams! LOL!!
@bobkozlarekwa2sqq593 ай бұрын
Cost?
@RingwayManchester3 ай бұрын
What about it?
@bobkozlarekwa2sqq593 ай бұрын
@@RingwayManchester how much does it cost?
@RingwayManchester3 ай бұрын
Oh right I just didn’t realise that’s how we ask for things these days? The links are in the description as I said.