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Apples to apples, you get more distance from vhf per watt, just the facts.

Great video, like to see a video on your thoughts and ideas about radio prepping for natural catastrophes

Another top test. I have used Smiley Antennas, tuned for a specific frequency e.g. an antenna tuned for VHF Hi 155mhz is good from 150-160 & a UHF antenna tuned for 465mhz is good from 460-470. They manufacture a wide variety of portable radio antennas and have interchangeable bases for just about any HT made... Motorola, Kenwood, Icom, SMA-F, SMA-M, BNC, TNC ... As I mentioned before, I don't know much about Motorolas. We had some in the 1990s Coast Guard, and they were boat anchors. We spent our own $ on VHF Marine Icoms. So I don't know if your Motorola antennas cover the entire frequency spectrum (136-174 & 400-480/520) or if they are "tuned" a bit more narrower... A little trivia... large, ocean freightliners often have UHF radios for comms within the vessel, shipboard firefighting, and for port ops in the 452/462mhz with repeater splits of 10.10, per the ITU. But a lot of them operate on GMRS without a license. It's cheaper. The FCC will send them a warning if they are caught. The UHF penetrates the bulkheads. VHF just bounces around inside the vessel. From your tests, it looks like P25 gives a clearer signal than analog in general.

In the water, CB would be the best for range , then VHF and last UHF

Did a quick followup test this past day, around town handheld to handheld, as expected, UHF won out reaching about 4k's, vhf was only just breaking squelch, this was a dual test as was also recording on a mobile rig at home in dual channel scan, with mobile antenna on pole about 2 mtrs above ground, this is hilly and a lot of tree lined areas, although nothing like the density in your forest tests, at home similar results uhf was clear for about 8km's vhf disappeared around 5km's, and even close in around 2km's uhf clear vhf was noisy, so base camp in say an RV or similar height would get you good distance too on UHF, at least around here :) Then the next test, the waterfront is about 17km's from home and home is by no means on a high hill, the local car test portable was average sedan inside windscreen, vertical, facing waterfront - no obstacles, surprisingly, the VHF test from 1km was heard on the home radio albeit hissy, you could understand normal level voice, uhf nothing, car portable full quietening on both bands, headed off to a location on a local island, uhf was doa about 11ks from car, the vhf kept it all the way to the island, 19km's away on portable, home lost it between 13 and 14km's, I'm sure we could have got better distance on vhf, but there was 25 to 30 knots and it was a dark 9pm, didn't want to meet the local heli rescue guys outside the pub so stayed on the island :)

Enjoyed the video

Were you facing in the direction of the receivers during all transmissions? Believe it or not, your body/melon can block RF. I know it couldn't have been much at only 1 mile, but facing the radio in the direction of the intended target can really make the slightest difference. Very similar to how holding the radio upright to where the antenna is pointed straight up at the sky can make a difference which you did very well in this video. :)

How did you make the receiving end ? With a base station you must be shure you don't get desensitized by nearby strong signals (especially in VHF). The antenna must not be a dual band and tou have to place it at the exact same spot or there will be diferences betwen bands. You seamed to have kind of intermitent front end blocking by strong signals. On a portable receiving setup: Radio must be on a clear point (with no obstacules) . When you finish VHF, you take the portable away, and quickly put the UHF portable at the exact same spot (someone helping will do this work). That's the only way to compare (doesn't matter where you are). Otherwise, you will sabotage the end results (55 + years tac comms guru HF/VHF low/VHF mid/VHF hi/UHF/SHF here...)

What is he wearing on his wrist?

These tests dont make sense, compared to my testing in the past at least, you should test every radio for output wattage on a good meter, are those all std supplied stubbies or after market? Got a VNA? I'd check them for centre frequency and compare it to the freq your using, even radio should kill it over a mile over water - just like the Sabre did (awesome radios - can't break them) and over water (and outer suburbia, mostly flat lightly hilled in one direction) VHF kills it over UHF, my tests have been over 4 kilometres (about 2.5miles IIRC) with yaesu stock stubby antenna, have a baofeng, its pretty useless, about 1km, these radios are dual band, so wont be tuned to max performance for either band. (further note 25w mobile to mobile on a highway amongst moderate hills and UHF dies after 7km, but VHF survived out to 16km) I ran the test two weeks apart to make sure I wasn't experiencing any ducting assistance, so I'm at a loss why your tests show opposite, the fact the Sabre is known for high power, is what makes me think those others are not performing where they should be) thanks for the test, we have a new dual band HH now, maybe I should redo our tests with it too. cant wait for part 2 :)

We call them "stripers" in NJ

Interesting test results. What height was the receiving radio antenna at? What frequencies did you test on? Was this on narrowband or wideband?

saber 3 are you able to program? or are they astro saber?

Great video once again. I'm interested in how much p25 would affect audio quality and range compared to analog, especially when using OEM standard length antennas

These are excellent "real world" tests. Just curious, have you bench tested the study HTs for the actual power output versus the specs ? I don’t know about the Motorolas, but I presume the VHF & UHF output wattage is the same for all ? Looking forward to your next.

Rock solid real world testing, that normal people want to see.

Super cool. Sell me a mounting plate and take my money.

Ok I feel like I have to chime in with this. I have been doing tests with vhf and uhf using a variety of antennas but with the same radio and at the same locations for the past few months. I have tested everything from roll up J pole antennas to an Arrow yagi antenna. My terrain is rolling east coast hills and in my case, vhf blows uhf out of the water consistently. Even comparing 2m verticals to a 7 element beam for 70cm, it’s not even close. It’s so wild to me how different everyone’s results are. I guess everyone should test to see what works for their area?

This was very good and interesting. I also have bad experience with vhf but I live in the city with a lot of buildings and obstacles so uhf have been surprisingly good here. When I did the test I took my vhf two blocks from my home (where the other radio was) and it did not work at all, I did get absolutely nothing on the recording. Uhf on the other hand did work more or less the whole city.

I've had very good range in wooded areas with 1 watt 900 mhz simplex

Any info on using the four or six meter amateur bands?

My Wife was deathly afraid of dogs when we were dating (early 90’s). She had been chased by dogs when she was a child. I slowly introduced her to the best animal in the world by having a friend bring over his K9, but It was still “no way, I’m too terrified”.. (then again, he shouldn’t have demonstrated “bite work” LOL After adopting an older child born with one arm, my Wife was so scared that any dog would be a threat to her remaining arm. I resigned myself we would never have a dog. Turns out my daughter ended up convincing her that all kids need a dog in order to learn love and responsibility. We ended up with a Maltee-Poo, kind of a sissy breed 😉but very smart, super sweet AND hypoallergenic. (required after I developed asthma after spending a lot of time at the WTC site - Thanks EPA director Christine Todd Witless for assuring us the air was safe to breathe). “Asbestos and mercury (liquid and vapor) are harmless, honest…. Just like GWOT was about “WMD” 🤨 Sorry.. lost my train of thought. Our tiny dog is completely attached to my Wife and she even insists it sleep in our bed. Why? “because the bed is soft and HER dog deserves to be comfortable “. 🤣 Thanks….

No K-F’s ? The latest trend in 2024 Communist run USSA ? Get rid of smart, kind, obedient and cuddly dogs and go to nasty, cranky and disrespectful felines. The cat’s claws and “spray capabilities” terrify the perpetrators far more than doggies. 🤣

Thank you for a great video and channel! I gave most of my Hytera gear away to a local volunteer fire department and really miss them for the “FPP” functionality. I still have a few XPR-7550e left to use for family emergency use. While Motorola is a beast of a radio (I still have Quantar UHF R2 repeaters up and running in a closed rack cabinet in a “not so clean environment” in a rooftop elevator mechanical room. I installed them as a favor as temp fire dept repeaters while they awaited their ordered hardware during the migration from VHF-Low Band 46.xx to UHF “T-Band”. They used 2 freq pairs licensed to their ambulance squad during the transition. They are STILL up and running perfectly (but w/my licensed IG/business band UHF freq pairs) and BpBr duplexers since 2001 ! No service (repairs) other than dusting out the cabinets every year. They made radios and repeaters that were built like tanks!

I don't understand why people can't properly pronounce the name AILUNCE...(. A- LUNCE ). you and others keep pronouncing it ( A - LEE - ANCE... it's not spelled ALEEUNCE. IT IS SPELLED. AILUNCE...and when transmitting , if you put the radio mic right up to your lips it can cause mic clipping which can cause bad transmission... proper way is about 5 inches away at a slight angle, no need to over pressure the mic

Have you thought about testing Analogue vs digital(DMR)? I would like to see a test of range and practicality.

As a HAM radio operator, this is my experience. UHF is great for dense suburban areas. VHF is great for road trips in the country.

Just found your channel. Great content. Have you tried this with a 1/4 wave jungle antenna at say 10’? Thank You for the content. Happy Independence Day!!

It sounded like the old saber sounded the best in uhf. It would have been nice if you did the tests with the old Motorola brick mx radios. Maybe the issues are where and what parts are used in the newer radios.

1000hz tone at the beginning scared my dog off.. She has bad hips. I cant stress enough how much I hate that noise. I like this topic and am shutting this off cause I dont understand why YTrs add beeps and cut tones. It's annoying to headphone users and dog owners will hate you.

You limit is the antenna. This is not a fair test. Get a 1/2 wave vhf antenna for apples to apples.

VHF is great for long distance. UHF is great for in buildings in town. Because of the wavelength....

I live on an relatively flat island with large commercial windmills in the middle. When I talk to my buddy on the other side of the island it is a significant difference between 2m and 70cm. I cant have 100% LOS to his antenna 10km awa,y since the strength is barely a few S-units. On 2m we both notice a little bit of fading due to reflections from the blades of the windmills. But on 70cm the signals via the blades are way stronger with deep nulls and high peaks of many S-units. I believe you might have the same effect in the forest, with stronger reflections from high up in the trees on 70cm. 73 de LA7DFA www.statkraft.no/globalassets/0/.com/1-about-statkraft/where-we-operate/norway/norway-smola-wind-farm_3_1500x1200.jpg

Very interesting. Here in the U.K., the group I'm involved with have used VHF for years as we primarily operate in open country, albeit often with trees and uneven ground. We also have UHF handsets for closer work but don't usually try to run them over any distance. A while back, we had a slight mishap with our VHF antenna at event control part-way through and had to improvise. We stuck a UHF magnetic antenna on a steel frame camping chair and were surprised to find that on that day at least, communications showed a big improvement!

Thanks for showing us. On boats they use UHF and they reach about everywhere since the wavelength is small and will pass doors and openings! But VHF does not. What would be nice is to find some scientific paper on what frequency passes easiest in the dense forest! Might be some spesific bandwidth.

1 Min in and i want to say thank you for the time and effort you put into your videos in regards to actually going out into the field and putting theories into the test.

I'd like to see a comparison of VHF vs UHF handhelds used car-to-car inside a vehicle with no antenna outside the vehicle.

I could have told you that, that's why the US Forest Preserve uses VHF low band. Trees absorb UHF signals easily, internal moisture content.

So much about this is just completely wrong.

Nice test and nice video. No surprise. 70cm has a better chance of finding a path in leaves and trees. Winter might have better QSO for VHF. In Missouri, we encourage folks to get the river edge for better chance for getting a signal through. 73, KF0NNQ WRVR260.

I have had the Ailunce HD-1 twice, the first when it came out around 2017, and now again for a couple of years. It is pretty good, and for DMR, which I started with in 2016, with then very few other than UHF with a Commercial Hytera model for about $400.00 or more. I have other DMR capable radios now, with the Chinese being more recent as DMR was a European ETSI system I completed a correspondence course from Tait systems in 2018. This was a more commercially directed course as opposed to amateur radio. 73 de Ray W2CH New Hampshire. Licensed since 1962, and age 80 now. 😊

In fact, VHF low band (30-50 MHz) will outperform all UHF radios. Of course you must use a good antenna with counterpoise. That is better for military and Red Cross style operations...(In the field)

Nice thing about 70cm is a half wave antenna is quite portable.

1/4 wavelength is half of the antenna. You actually need a 1/2 wavelength antenna to have a true dipole. In practicality you have 1/4 wavelength antenna whip and the metal inside the radio + capacitive coupling between your hand and the radio are acting like the other half of the antenna. To state it a different way that might help some people… half of your antenna is the antenna whip and your skin and the body of the radio are the other half. Human skin isn’t very conductive obviously. On uhf it’s manageable to get a 1/2 wavelength antenna whip, but on vhf it’s just too large to be very practical. Better to keep uhf on your person and vhf for longer distance vehicle mounted communication. You can also do something cool like crossband repeat through an IC-2730a on your vehicle. This radio will pass p25 and fusion c4fm in the crossband repeat mode even though the radio is only an analog radio. It’s an undocumented feature.

As lower the frequency as better is the range. On the 70cm/2m band (only one I can use) I prefer 100+cm foldable tactical ABBREE antennas. If someone wants maximum range I recommend CB radios if you have no HAM license. Another thing to know: If your partner does not hear you, that does not mean that a receiving tower does not hear you. They are so powerful that they get signals more than 100km away even if your partner is less than 2km distance and cannot hear you. Another interesting thing: Some frequencies are being reflected by the enviroment similar to a flashlight against a mirror, others can go throught an obstacle and some frequencies cannot. It's a miracle if you test it in the real world.

Love real world tests. Looking forward to the water test.

As an actual Comms Guru for a major PD, I agree with UHF being a better band period! I've talked clear across down town Boston on simplex with portable radios. Mobile radios don't even need a repeater if everyone is in the city. I've also found that UHF is almost always better in the woods. Never walked out of range of UHF. I have with VHF. Excellent channel!!

Oh, I forgot the syntor X9000 low band.......and, and. I freaking need 1:21 moto intervention😮

Hey, Like your radio videos. Tell me, why do you like radio equipment? And do you like patches. L E retired/XTS300-5000, astro saber, saber, ht1000, astro spectra, mocom70, XPR all series, 2 repeaters......(whew, don't tell the wife)owner

Detailed. Thanks for your video. 73, KF0NNQ and WRVR260.