When I say Air Band I mean 108 MHz to 136 MHz And it is AM The Military Air Band is above the 222 MHz band, and I am not exactly sure where it starts But the US Military has a National Wide Area Network system that is trunked and around 380 to 420 MHz So, I think military land radio is like 350 MHz to 420 MHz, which is what it always has been And I don't know why so many companies are making radios that have 350 to 400 and 380 to 420 and 400 to 512 Basically they are giving people radios that will be in bands they are not allowed on The AM Military Air Band is like 250 to 350 MHz I never understood why they needed so much bandwidth and I used to scan the military air and the military land frequency range, and there was nothing. A lot of devices use the military air band Car remotes Garage door openers Security systems Wireless mic systems I think because they knew there was going to be 100s of millions of these low power devices, and anywhere else and there could be disaster, so putting it in the 300 MHz range was a perfect solution Just learning a few days ago that there was a 900 MHz 934 MHz 20 channel CB, way back in the 80s, that's nuts I really want to get one of those and see how tough it would be to change the frequency to 936 range I imagine it was all digital, programmed into an eeprom, and the code could be read, edited and written back I did this with Motorola Maxtrac trunked 800 band radios, making them cover the range, but I had to do mods to the board in addition to editing the code plug I really wish I could find a way to expand the ABBREE handheld radios The coverage is extensive, but they should have given more, I mean, they went to 660, and everything from 525 to 600 is TV and 600 to 698 is 5G But the upper 700 MHz band and the 800 and 900 bands have analog voice transmissions
400-405mhz is reserved in the U.S. and I believe Canada various types of radar. 406-407mhz is vis-a-vis internationally reserved for Maritime GMDSS/EPIRB and ELT for land and aeronautical. In the U.S. 410-411mhz is allocated to the US Dept of Justice - Drug Enforcement Administration. 98% of their comms are P-25 encrypted. In the U.S. there's a piece of 900mhz/33cm, 902-928mhz that is shared between Amateur ops and ISM (Industrial, Scientific, Medical). Amateur can be FM analog or digital. The phone use of ISM to the best of my knowledge is digital, and is used as an unlicensed, personal or business radio service, 1 watt maximum, removable antenna permitted on handheld radios to connect to an external antenna. Motorola DTR and DLR series using FHSS is the most popular but there was a company called TriSquare who produced decent little portables using FHSS. But a different vocoder. As far as the programming spectrum, with the exception of certain frequencies that are covered and governed by international treaty (VHF Air, VHF Marine, Amateur... specific Distress freqs i.e. 2182, 121.500, 156.800, .....) each country can develop it's own band plan. In China for example, 350-390mhz is for police and such. In the U.S. Amateur operators have priveleges on small segment of 220mhz, but that isn't available for amateur ops in the UK. The UK amats have a part of 70mhz, which we in the States don't have.
@@chrisplunkett2814 MilAir is generally AM, (for safety reasons) but can also use a specific frequency(s) on FM or other modes for tactical or mission critical comms
Thank you for this video. I also own two of these radio's.The second harmonic on two meters is almost one watt in power. I think it will be an interesting video how far you can transmit with the second harmonic!
Great video! I understand this is the same as Abbree, Radtel, Socotran, etc, right? I've got the Radtel RT-490 on the way to Brazil from China, but I'm afraid it will come without GPS and Bluetooth, since I only paid R$360 for it (U$70). ("I'm afraid" as in I'm concerned, not "I'm sorry", lol)
I have two of the "MMLRADIO" branded ones sold on the Amazon US store, which is the same hardware on a slightly fatter case, but the battery lacks the USB-C charging port. The MMLRADIO version has the GPS as well as the Bluetooth functional (I use the latter a lot for transferring code plugs between both units using my mobile phone). I think I heard somewhere (could have been your prior review of it) that the Jianpai version lacks the GPS radio (even though it has the options in menu)...could you confirm if that's the case? I do like the Jianpai's case better as it clearly resembles a modern Yaesu unit. I also wish they sold the battery separately to add the USB-C charging to the non-Jianpai branded versions. I absolutely love these radios. Great quad-banders for the price. Also, though not legal in the US, you can enable 350 MHz frequencies via the software. Cheers!
You press the < left arrow when in VFO/channel view and it shows GPS coordinates after it connects which takes a little bit of time. Obviously have to be outside. You can save up to 60 coordinates as waypoints and there's a directional pointing from your current position towards your selected waypoint. BUT there is very little English documentation available and I've only figured some of it out using Google translate, random foreign language YT videos, and good old trial and error. There's also Bluetooth with a very basic app for programming but it does work. Not sure if BT PTT or other accessories work though.
@@tee_m Thanks ! This same HT is branded under a few other names, Abbree, MML, ... And another operator said the same thing about the Bluetooth programming re: the MML. ATB de KD5xxx
You were up there a few days ago calling CQ ( for this video?) and I had you coming through 5 7 on a handy in a field in Astley north west Manchester, but you were not able to clearly make out even my call sign. No surprise really, considering Greater Manchester stood between us, but you were hitting me no problems. I had 5 and 9 to Wrexham yesterday on the handy (ft70d) with a 771 antenna, from winter hill. Initially on low power! My friend had 5 4/5 to the same on her uv5r. M7OMO
Using a repeater in my neck of the woods, this radio does not auto-switch. When I transmit on 146.355 and someone replies, the radio switches to 146.955, which is the output. But then the radio doesn't auto-switch _back_ to 146.355! I have to manually switch back to that frequency, while every cheap Baofeng I own automatically does it. A menu option does have the means of selecting which channel to transmit on, A or B. If you select OFF, it takes 15 seconds to return from FREQUENCY A to B (or vice versa). Why doesn't it operate like virtually every other HT on the market? Do you have the same issue with your radio?
Banggood is the only place I've found them. Similar units by Radtel and Socotran and others on AliEx but not USB-C equipped like this. Seems like it's the newer model. Happy hunting!
I’m ordering the Jianpai 8800 for airband use but apparently I’ll need a new antenna for 108-136 but can’t find an SMA fit antenna in that range. Can anyone help?
@@abdulroqueb1272, A Nagoya Deixa O Rádio Surdo, Pra Esse Rádio O Modelo De Antena Que Fica Muito Bom É A Antena Tática De 47cm, Essa Antena Não Só Melhora A Recepção Da Banda Aérea, Mais Também A Banda Satcom 220Mhz, Pode Comprar Sem Medo🖒🖒🖒
