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MD782 vs MD782i

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R22Beta

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Aug 21, 2020
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Can anybody tell me the difference between these radios? Looking on ebay some are listed as MD782 and some are listed as MD782i

I will want to upgrade my radio with single frequency repeater and AES256 encryption. Can they both do that?

Also, the G in the model number just indicates that it has GPS correct?
 
D

dazey77

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OK, its super complicated and the Hytera documentation is misleading. I have a MD78xi with SFR, the UK got them really late (compared to the US) and me and the distributor tried to work out how to order one and is was confusing for us all.

As I understand it, there are two hardware variants of the MD78xi (its 785 in UK of course), full duplex and non-full duplex. This is really not (or was really not at the time) reflected in the datasheets. If you buy a MD78xi (normal) it is not possible to upgrade it with a sfr licence (or to upgrade it to full duplex). You have to buy the MD78xi full duplex model and the SFR licence can be added at time of purchase or later.

The MD78xi is a hardware revision (not just fimware) to the MD78x. There was a MD78x full duplex model but I don't believe there was an SFR licence.

The MD78xi full duplex model is approximatly the price of two MD78xi. . .

Makes going SFR expensive (especially when you look at the PD985 which includes the full duplex hardware and you only need to pay for the $100 SFR licence)

Correct, the G indicates that it has GPS. In hytera models with optional bluetooth, it often indicates that it has GPS+BT (e.g. PD98x)
 
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dazey77

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(your other choice is the high power or low power variant. The hardware as best I can tell is identical between the two but the low power is firmware limited to 20w (and there is no simple workaround to this even if you have access to the Tuner software). Heatsinks and output stages are the same so there is no weight or other advantage to the 20w model. The HP model is 45w (from memory) but you can manually adjust max power in the CPS (e.g. in my van I have a antenna that can take 20w, so I limit the rig to 20w when its mobile).

To me if your going to put the money into a SFR rig, you might as well get the HP with GPS.
 
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dazey77

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If your looking at one on ebay etc. then as an example my long model number is MD785-000G000D-00000i-U1-B-A

I believe this roughtly translates to
MD785-000G(GPS)000D(Duplex)-00000i(i variant)-U1 (400-470MHz)-B (High Power, A being low power)-A(no current meaning)
 
C

chanjyj

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Joined
Dec 20, 2011
Messages
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dazey77 said:
OK, its super complicated and the Hytera documentation is misleading. I have a MD78xi with SFR, the UK got them really late (compared to the US) and me and the distributor tried to work out how to order one and is was confusing for us all.

As I understand it, there are two hardware variants of the MD78xi (its 785 in UK of course), full duplex and non-full duplex. This is really not (or was really not at the time) reflected in the datasheets. If you buy a MD78xi (normal) it is not possible to upgrade it with a sfr licence (or to upgrade it to full duplex). You have to buy the MD78xi full duplex model and the SFR licence can be added at time of purchase or later.

The MD78xi is a hardware revision (not just fimware) to the MD78x. There was a MD78x full duplex model but I don't believe there was an SFR licence.

The MD78xi full duplex model is approximatly the price of two MD78xi. . .

Makes going SFR expensive (especially when you look at the PD985 which includes the full duplex hardware and you only need to pay for the $100 SFR licence)

Correct, the G indicates that it has GPS. In hytera models with optional bluetooth, it often indicates that it has GPS+BT (e.g. PD98x)
Click to expand...

I’ve considered the PD98X, but haven’t found a battery eliminator anywhere, which in reality makes it impracticable even as an ad-hoc SFR.
 
0

0xFF1E071F

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dazey77 said:
If your looking at one on ebay etc. then as an example my long model number is MD785-000G000D-00000i-U1-B-A

I believe this roughtly translates to
MD785-000G(GPS)000D(Duplex)-00000i(i variant)-U1 (400-470MHz)-B (High Power, A being low power)-A(no current meaning)
Click to expand...
M = mobile
D = dmr
7 = dmr mobile
8 = with keyboard
5 = europe+middleeast+africa
G = GPS
D = i dont know
i = i dont know
U1 = 400-470 MHz
B = Power(H=high, L=low, A=?, B=?)
A = PCB version

Source (slide 23):
Code: 
https://radioquebec.net/forum/attachment.php?aid=2
 
D

dazey77

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I have a battery eliminator on mine. It is simply a PD7xx one but with the plastic trimmed slightly to fit. The batteries have tabs to stop the 7xx being fitted on the 9xx but otherwise they are the same. Took 5 mins to modify the battery eliminator with a dremel or hacksaw. I can probably do you a photo but it will take as much time to do a photo as it did to do the mod!
My modified PD7xx one is a 12v car one.
 
Last edited:
C

chanjyj

Member
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Dec 20, 2011
Messages
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dazey77 said:
I have a battery eliminator on mine. It is simply a PD7xx one but with the plastic trimmed slightly to fit. The batteries have tabs to stop the 7xx being fitted on the 9xx but otherwise they are the same. Took 5 mins to modify the battery eliminator with a dremel or hacksaw. I can probably do you a photo but it will take as much time to do a photo as it did to do the mod!
My modified PD7xx one is a 12v car one.
Click to expand...

Thanks for the info! I was under the impression that they were completely different batteries.
 
D

dazey77

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Photos of 985 eliminator its own thread for easier future finding
forums.radioreference.com

PD985 and PD982 Battery Eliminator

In response to a thread regarding SFR. People were struggling to find a battery eliminator for the 982/985. Posting as its own thread so its easier to find. I bought the PD7xx battery eliminator from ebay. Was inexpensive and shipped from china I believe. It had a 12v cigarette socket plug...
forums.radioreference.com forums.radioreference.com
 
I

intermod

Unhinged Conspiracy Theorist
Premium Subscriber
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Messages
71
Location
California
To answer your first question - "i" versus "non-i": The i is their slightly newer "model". I call it the "indictment" model as I believe these models remove the offending software that infringed on Motorola's IPRs. I suspect it may be the same hardware, but different firmware. I upgraded my non-i version to i versions, by using V9x firmware. But placing this firmware in my older MD782G radios partially broke a few things (scanning performance and CTCSS decode performance), but did provide more features, like a limited auto dual-mode receive, etc.). Looking forward to trying SFR some day.
 
S

speedway_navigator

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Joined
Apr 30, 2008
Messages
1,503
Location
Pittsboro IN
A Hytera dealer said "i" means infringement series.

I had a SAR team test SFR on my PD982 eye in a cave test. Simplex sucks after a few turns, they got decent coverage on UHF with the SFR option, but still lacked comms after a few more turns.
Back around 2017 I was in the Irvine shop talking to the techs when one said the SFR was going to expand to a hopping system.

It finally showed up in a repeater system but was way to costly to compete with other technology.
 
radioopperator

radioopperator

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Feed Provider
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Messages
309
0xFF1E071F said:
M = mobile
D = dmr
7 = dmr mobile
8 = with keyboard
5 = europe+middleeast+africa
G = GPS
D = i dont know
i = i dont know
U1 = 400-470 MHz
B = Power(H=high, L=low, A=?, B=?)
A = PCB version

Source (slide 23):
Code: 
https://radioquebec.net/forum/attachment.php?aid=2
Click to expand...

(I) Believe I=DMR and S=Analog through ip site connect
 
radioopperator

radioopperator

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FYI I have like 9 Hytera RD 982i units and about two of them are RD 982i-S The i units are local area analog and DRM but through IP site connect they are only (DMR) The RD 982i S units will do DMR AND ANALOG through ip site connect. Dealer didn't tell me that when I started buying the ( i ) units. I would of spent a bit more to have a few S units.
 
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