Hytera Mobiles as DMR Repeater

[@POCVoxer]

excelente saludos de santiago de chile

[@PowderMill]

You Rock! Great add-on to my RD & quantar setup.

[@TheRickJames]

Thanks!

[@shaullevine5447]

the only way to do it in this configuration is to set both MD785's to pseudo trunking and program channel one in the handys with solt 1 and channel 2 with slot 2 on the same freq .in the handy make a scan list with channel 1 the talkback channel .note both MD's must be on the same freq with separate antennas

[@TheRickJames]

You cant do that without having them sync timing which is a feature that these are capable of doing but its locked out through the software, they never fully marketed and offered this feature. I think it can be done but I dont have the time to do it, and for my purpose the current setup is fine.

[@shaullevine5447]

take a look at the PD985 it does stand alone pseudo trunking it would be interesting if the MD785 can be hacked into doing it then you would have 50 watt output instead of the PD985s 5 watt

[@TheRickJames]

Yea I seen that but its expensive to get enabled, could take one and feed into a amp but they couldn't handle any serious duty cycle anyway. I think they realized they would be shooting themselves in the foot if they put it in the mobiles. They marketed the mobile repeater instead which was like $1000 more than a mobile even though its a mobile without a face plate even(sold separate)

[@PowderMill]

Stupid question…. Does the back-to-back approach relay encrypted voice and OTA encryption? I saw this described in a Hytera tech bulletin several years ago and always wondered why? Is the cost savings there? By the time you buy 2x mobile transceivers, good power supply, db-26 connectors and cabling, rack mount chassis or frame, etc.. is that worth it? Compared to just buying the RD series? Thanks and nice video!

[@TheRickJames]

NO it doesn't, but not because its not capable but because they decided not to allow it. They did this to push people to purchase their mobile repeater instead. The interface is actually fully capable of this its just locked out. Back to Back in this configuration is similar to older analog setups, you can however achieve the same result just about by using the same encryption key on both talk groups. This setup is good if you have some of these or got them cheap and want a cross band or shft pack repeater, it wont replace a good purpose designed repeater.

[@PowderMill]

@@TheRickJames thanks for the reply… it really sounds like they’ve learned a lot more than tech secrets from /\/\otorola! 🤣 I have 12 new MD782 G2 UHF mobiles that I had remaining after I retired from comms. I planned on donating them to my local volunteer fire department, but I think I’ll keep a pair to try this. Thanks again.

[@RINNTY]

Nice demonstration

[@TheRickJames]

Thanks!

[@yoseifmichael9058]

Hello, one mobile has the input frequency, time slot 1 and color code 1 and other mobile has the output frequency , time slot 1 color code 2?

[@edineisilvatvpatrulheiro206]

onde compro esse cabo que liga os dois rádio ???

[@msohailrana26]

Please suggest if this radio can be used to install Gateway in Smart Dispatch Plus OR only MD7 series radio is used for Gateway

[@oldladyme]

Good video thank you, I have 2 DMR UHF CS 800 radios can this be done as well thank you.

[@TheRickJames]

Not sure, I don't have any experience with those but they should be able to at least duplex with a universal adapter.

[@M0LMK]

Great example Rick. I guess the interface cable is a PC49 "Back-to-Back"? Can you tell me if it passes text messages through the repeater or just voice traffic?

[@shaullevine5447]

it wont transfer data or private calls

[@TheRickJames]

I actually was able to pass text to the TX it just doesn't successfully transmit to the handheld on the other end although you can see it key up. Would take some additional programming to use the A/B time-code pins.

[@skinoku]

NO NOOO! No TX without antenna!

[@davidglc]

Of course it would be better avoid it or trasmitting with a dummy load. But if you trasmit for a few seconds it won't be real damages. Anyway each repeater has two radios inside, assembled in a similar way. Nice video mr. Lazarus !

[@rangerjay7971]

@@davidglc its a baofeng, who cares

[@fransferreira8307]

I wonder if those radios got built in circulators. Probably not.

[@terrygillard9350]

How do you make it ID every 10 minutes?? 🤔

[@ayoupalhasan321]

Hello .. Thank you for this information .. But I could not link them in the programming language. How are they linked in programming Please explain

[@TheRickJames]

To fully communicate digitally the talkgroup information they need the feature unlocked by Hytera. This is duplex repeating with the talk groups and ids programmed separately to each mobile.

[@radiotravel2663]

Use Data-cable Hytera POA147????

[@patrickwilson694]

Does the cable work with a 652 set up as an analogue repeater?

[@phantomdbnz]

Is that passing the Handheld radio id through to the receiving handheld, OR is the receiving handheld only displaying the id from the transmitter of the repeater, also is this passing time slot info so you can have a two time slot transmission?

[@TheRickJames]

Single slot although these are capable, they wont offer the programming to enable it anymore. I was working on getting the software unlock from someone but it fell through. But DMR repeaters are so cheap now its not really worth the time to get it working. In all practicality though you can essentially have two separate work-groups with IDs, just wouldn't identify individual IDs to the remote work group.

[@NINOST9]

BOM DIA OS PINOS DO RADIO RX E TX

[@maryjane670]

I want to program the same radio but can’t get past the cps password. Do you what password is typically used ? I cannot program for this area.

[@TheRickJames]

You can try Program > Reset default data and write to the radio. They don’t have a default password so if it has one it was set by the previous owner and you may not be able to access it. You can try a firmware update to clear it also. I don’t remember the process since it was a long time ago but you can google it.

[@prasadpaspulati148]

I have a few doubts U converted two basesets into repeater setup What are the frequinces in both the basesets What frequency used in man pack Where can I get that interconnection cable I have a self-made cable with some pin configurations is it ok or not Kindly pls infrom

[@TheRickJames]

The frequencies are shown in the video, 10mhz split. The cable is available on ebay and other places just search for it. Self made is ok, just follow the pinouts.

[@prasadpaspulati148]

@@TheRickJames what is pinout configuration

[@POCVoxer]

tienes e codigo del cable de interconexion

[@samuelcaban5085]

hi michael i am kp4sc. i have hytera md782i i tried to programming this radio but not read . only said model version dont match. my soft is version 8.5.05.008 na2 but i tried other version and nothing. let me know what is my error. my cable is new and pc identified on usb port

[@TheRickJames]

Read first then make changes and write(program). The default software does not have specific code plugs loaded. You read first to view the options etc your has available to make changes. I have 3 different versions among 6 radios.

[@pedersteenberg2010]

RePEATER app?

[@shaullevine5447]

you haven't solved anything this is not a repeater in the classic sense of things . you simply made a B2B

[@TheRickJames]

It is a repeater in the "classic sense of things" its a cross freq duplex repeater actually. Channel negotiating is multiplexing, no one is taking $600 ebay mobiles to make a Full flagged DMR Repeater when you can buy one for $1000, This is setup the exact way homemade repeaters have been made for the last 60 years. They are only used as a base station or to extend range. And you wouldn't have two separate antennas either in a multi channel repeater you still have one antenna with two duplexors for proper split isolation.

[@TheRickJames]

And I get what your saying about "solving" but this video was for a forum reply and is missing some context. The good thing is you can essentially have two work-groups just as you would with a traditional dmr repeater, difference is in the ID from Group 1 to Group 2. But anyone who would have enough people to really need to do that would just buy a repeater. Ive been remodeling my house so I didnt invest much more time in it and DMR Repeaters are now abundant and affordable so not sure its worth the time to get it working .

[@johngraesser4911]

interesting proof of concept, but as setup totally illegal. transmitting out of band

[@TheRickJames]

@@johngraesser4911 Was just some left over gear to test. I had that frequency split in a different country I lived in.

[@angelofumarola7690]

Ciao sono ik7xiw vorrei fare lo stesso sistema ho tutto cavetto e radio mi puoi aiutare grazie 73 Angelo

[@ماهرالماهر-ض1ن]

May I talk to you by instant messaging

[@TheRickJames]

No sorry im super busy

[@JB-po3rb]

Dummy auf die Handgeräte .......