7:26 DMR uses less power because the radio is only actually transmitting half the time you're holding the PTT due to TDMA. 30ms of time for 1 timeslot, then a 30ms pause to allow traffic to pass on the same frequency for the 2nd timeslot. It flips between these rapidly.
This is one of the best choices for a Prepper/MAG group IMHO Anolog/DMR(digital) Ip67 Text message SMS USB-C TRI band uhf/vhf 220 (136-174MHz 222MHz-225MHz 400-520MHz) AES-256 encryption Front panel programmable Proper multpin waterproof accessory/speaker mic port. (Motorola m3)
Good question. Depends how bad those emissions are for me. Out of bands use for me is ill advised. No need to draw attention or create problems to other services. Otherwise, harmonic limit numbers are a legal construct, but there for a reason, so IMHO it's good to avoid worst-case scenarios.
for the bluetooth mic to trigger vox it would have to keep the bluetooth audio channel open which would kill both devices batteries. you would need a bluetooth push to talk button which are available fairly inexpensively. the earpiece that it came with probably has a ptt on it.
The Encryption DMR feature is interesting for sure. Maybe in Canada you can use it, but unfortunately here in the USA its illegal to use under FCC regulations to use :( (although it would make a great emergency use radio for SHTF)
11:04 Bandwidth 12,5 kHz on PMR band it's twice as wide. Transmitting with a deviation of 10 kHz is interfering with 2 adjacent channels. Can this radio be set to receive and transmit 6.25 kHz bandwidth?
I have both. for me, hd2 has much better reception, can "work" with the screen in the sun, the center dial works a little bit better (yet slow response), the c usb for charging is good, the antenna seems to me with better swr, bluetooth is nice to have, extra upper button is an improvement, gps is slow locking the sattelites and when using gps with aprs would like to have the channel transmiting location even when not selected (blue background) en the screen... what else?? well thats for now
Adding to this, my daily driver is a Yaesu. Keep in mind that in a prepping context the issue isn't as important as in daily recreational use. I always prefer better filtered radios, but it is not always a deal breaker if the signal isn't as clean as it should be.
Bonjour je suis tout nouveau dans la radio je viens de me prendre uvk5 8 quelle firmware tu recommende pour du preper, il y a le tout nouveau v03 de f4hwn qui a l'air vraiment bien mais ji connais rien 😅
Il y a des versions virtuelles de Windows OS qui peuvent être opéré sur MAC OS. Pas un adepte d'Apple, mais plusieurs utilisent ce moyen d'éviter d'acheter un Windows
@RadioPrepper all it does if you press copy button it puts radio on quick scan for local frequency mach....and if you Ptt another radio it picks up frequency and ctcs tone. So you can quickly pair with diffrent radio. Just like with quashengs uvk5/6....if you press F and 4 it scans another radio local frequency. This button can be reprogrammed. Thank you
7:26 DMR uses less power because the radio is only actually transmitting half the time you're holding the PTT due to TDMA. 30ms of time for 1 timeslot, then a 30ms pause to allow traffic to pass on the same frequency for the 2nd timeslot. It flips between these rapidly.
Sure, but the extra processing requires power too.
This is one of the best choices for a Prepper/MAG group IMHO
Anolog/DMR(digital)
Ip67
Text message SMS
USB-C
TRI band uhf/vhf 220 (136-174MHz 222MHz-225MHz 400-520MHz)
AES-256 encryption
Front panel programmable
Proper multpin waterproof accessory/speaker mic port. (Motorola m3)
So this HD2 sold in the U.S. market w i l l transmit 136-174 & 400-520 ???
It can be unlocked, as far as I know..
I've seen several videos, the features appear to be plentiful, but several reports claim spurious emissions. Thanks for sharing.
Spurious emissions are a serious concern for any responsible operator.
Serious question why should Preppers care if it passes spurious emission test? Besides the argument it’s illegal ?
Good question. Depends how bad those emissions are for me. Out of bands use for me is ill advised. No need to draw attention or create problems to other services. Otherwise, harmonic limit numbers are a legal construct, but there for a reason, so IMHO it's good to avoid worst-case scenarios.
As to legality, ultimately it's the user's responsibility to determine that, as amateur radio operators supposedly aren't just appliance operators.
@@BobBob-il2kuwell for one, it makes it easier to pick up using SIGINT
for the bluetooth mic to trigger vox it would have to keep the bluetooth audio channel open which would kill both devices batteries. you would need a bluetooth push to talk button which are available fairly inexpensively. the earpiece that it came with probably has a ptt on it.
read the manual - yes the earpiece has a PTT on the side
The orange alarm button can be disabled in the software FYI
The Encryption DMR feature is interesting for sure. Maybe in Canada you can use it, but unfortunately here in the USA its illegal to use under FCC regulations to use :( (although it would make a great emergency use radio for SHTF)
I doubt it is legal anywhere outside of a business license..
11:04 Bandwidth 12,5 kHz on PMR band it's twice as wide. Transmitting with a deviation of 10 kHz is interfering with 2 adjacent channels. Can this radio be set to receive and transmit 6.25 kHz bandwidth?
Great video sir, thanks!
I have both. for me, hd2 has much better reception, can "work" with the screen in the sun, the center dial works a little bit better (yet slow response), the c usb for charging is good, the antenna seems to me with better swr, bluetooth is nice to have, extra upper button is an improvement, gps is slow locking the sattelites and when using gps with aprs would like to have the channel transmiting location even when not selected (blue background) en the screen... what else?? well thats for now
I have noticed some reports of spurious emissions. Do you have some further insides on that?
I've seen videos, but I don't overly care...
@@RadioPrepper :( , thanks for the quick reply 73
Adding to this, my daily driver is a Yaesu. Keep in mind that in a prepping context the issue isn't as important as in daily recreational use. I always prefer better filtered radios, but it is not always a deal breaker if the signal isn't as clean as it should be.
Bonjour je suis tout nouveau dans la radio je viens de me prendre uvk5 8 quelle firmware tu recommende pour du preper, il y a le tout nouveau v03 de f4hwn qui a l'air vraiment bien mais ji connais rien 😅
Bonjour, la dernière IJV est bien, je n'ai pas essayé les autres..
The screen is slightly bigger it would be interesting what firmware will bring later in future
Il y a des versions virtuelles de Windows OS qui peuvent être opéré sur MAC OS. Pas un adepte d'Apple, mais plusieurs utilisent ce moyen d'éviter d'acheter un Windows
Hello Gilles,
Unfortunately impossible for me to show time/ hour on the second channel. Is there any specific manipulation to do ? Thank you !
Sorry no idea...
How do you get the vox working with tht bluetooth headphnes. What headphones are they.
I think the VOX can't be on continuously, you need a PTT button.
Another great video, thank you! Do these Hd1 and Hd2 have fast frequency copy button like most Baofeng radios?
Never heard of that button, what does it do?
@RadioPrepper all it does if you press copy button it puts radio on quick scan for local frequency mach....and if you Ptt another radio it picks up frequency and ctcs tone. So you can quickly pair with diffrent radio. Just like with quashengs uvk5/6....if you press F and 4 it scans another radio local frequency. This button can be reprogrammed. Thank you
At this point I have 7 different hand helds, but you almost convince me I need one more✋73's🎙KD9OAM🎧
There have been Bluetooth equipped radios for years my AnyTone 878 and my Icom ic52 both have Bluetooth that’s nothing new!
Thanks, none of mines ever were..
F4iss merci❤❤
The radio doesn't pass the regulations regarding spurious emissions. It's just another expensive Baofeng.
The HD1 however is part 90.
HD1 has usb c charging