Showing posts with label Amateur Radio. Show all posts
Showing posts with label Amateur Radio. Show all posts

Saturday, June 25, 2016

Alpha Bravo Creations: Tactical Hand Signals & Phonetic Alphabet Flash Cards



I'm to review Flashcards teaching Army Hand signals & the Phonetic Alphabet?

When I received this assignment, I was skeptical. Certainly, communications modes are a specialty I'm familiar with, but I'm no Platoon Leader, and my days of playing Army Man is a bit behind me. Besides, this is a review of kids flashcards, my last dealing with was in learning math in grade school.
But I was surprised when I examined the deck of cards of the Phonetic Alphabet, I immediately got the concept & it's potential. Then, when I tried out the deck of Army Hand signals & American Sign Language, it struck me that these flashcards are invaluable for not just kids, but for adults too.

Communication in it's purest sense is simply transferring information from one place to another by any means necessary, either verbally, or non-verbally. So while from the standpoint of preparedness, the ability to convey information clearly & accurately is paramount, the ability to also do so silently can be vital.
So here's where these flashcards come in handy, (pardon the pun).
Use of hand signals offers clear communication totally unspoken, as any misbehaving youngster frozen in mid-frolic by Mom & Dad pointing at them sternly can attest. Message CLEARLY conveyed.
Each flashcard offers a term or statement with an illustration of it's accompanying hand gesture. There's also directions on how to do the gesture.  By learning to recognize the gestures and connect it to the word or statement, standard terms & gestures can be strung together to make whole sentences or concepts. By repetition of using these cards anyone can become proficient in using hand signals.
Like I said... very handy.
It didn't take long at all for this old dog to learn some new tricks, not long at all.
Hand gestures can be very useful...(bet you thought I'd say HANDY again), if ever I'd be in a situation where I NEED to communicate without speaking a word. Serious stuff, like  HURRY! THIS WAY to the RALLY POINT.
While Alpha Bravo's Hand Signals for Kids helps kids add realism to their playacting, what you can learn from them can be a vital aid for anyone in a disaster to emergency.

http://www.alphabravocreations.com/military-phonetic-alphabet-flashcards/
Next came the deck of flashcards teaching the Phonetic Alphabet.
If you've ever seen a Cop show on TV or a Hollywood Blockbuster War Movie, someone is always talking over a microphone saying stuff like"Foxtrot Uniform Bravo Alpha Romeo"...or some sort of drivel. It's not heatstroke that's got the actor talking gibberish, it's a PHONETIC ALPHABET used to verbalize individual letters, using spoken words. Tango is the letter "T", India the letter "I", Charlie the letter "C", and so on. Using phonetics is handy when noise conditions make it hard to discern single letters. Sounds like "Eee" & "Tee" &"Cee" can often be misheard in a noisy location. So by attributing a word starting with the letter, it's easier to understand because you're more likely to hear parts of a word and mentally fill in the blanks.
With the Phonetic Alphabet Flashcards,  Alpha Delta Creations has presented each letter with a picture symbol, depicting the word, as well as it's corresponding Morse Code symbol.

HUH! What? Morse Code? Hams do Morse code! Heck, even Rambo tapped out Morse code to send a message in one of his movies! Morse Code is HANDY!

While not a requirement any longer to know Morse Code, it's still a widely popular mode of communication in Ham Radio, the dots & dashes all to be heard & deciphered when signal conditions are so poor that vocal speech is "in the mud" & unrecognizable.
I know very well the phonetic alphabet, but I never acquired Morse Code. So now, armed with a set of flash cards depicting them, I bet picking up the code could be just as easy as picking up these cards. Or better yet, it'll be CHILD'S PLAY.

My review started out skeptical, but I quickly came around. I seriously suggest getting your kids these flashcards & using them yourself. Who says kids get to do all the fun? In fact, make learning how to do Tactical Hand Signaling AND the Phonetic Alphabet & Morse Code a family fun project. One that may pay SERIOUS dividends later.
(I almost forgot... did anybody catch the reference of "Foxtrot, Uniform, Bravo, Alpha, Romeo"? Learn the Phonetic Alphabet & watch Saving Private Ryan again till you do. )
LEARN MORE or ORDER a set of flashcards, visit Alpha Bravo Creations Website. www.alphabravocreations.com

Sunday, July 12, 2015

Baofeng UV-82HP UHF/VHF Handheld Amateur Radio vs Baofeng UV-5R



The folks at Baofeng Tech asked me if I'd review this radio. Given the chance to review the new UV-82HP, the FIRST thing I thought of was to pit two different models against each other, at their max power settings, and see how great a difference there was in range. A totally unscientific comparison, but doable, since I own two Baofeng's already, two Baofeng UV-5R's. I figured it would settle,(at least in my mind), the range question from a practical standpoint, and give me a reference point radio to compare. 

Let’s start with a practical assessment...

UV-82HP: you can play the FM radio for three full days at work on a full battery charge. 
For some, (like me), that’s important. It’s also a practical test of current drain, like turned on scanning memory banks all day. Figure perhaps 18 to 24 hours service between charges & light duty cycles.   Audio volume & clarity is VERY impressive. I'm also impressed with the radio's fit & feel. There's substance to the radio, but because of it’s slim form factor, there's no problem with it clipped to a pants pocket all day. It’s not a bulky brick. 
If ever I hear some blow-hard spout off about "cheap Chinese Radios" I'd hit them with this one... it'd leave a dent.  
The LED flashlight has a enclosed lens & reflector, a great improvement too. I've always loved the handy flashlight on both of my UV-5R's... this one's a lot brighter

UV-5R: (First this Crevat: I LOVE my UV5-R's) The radio resembles a handheld radio version of a Sherman Tank, a small Sherman Tank. The '82 is slim & curvy, the '5R, like a leading edge of a bowling ball. While part of it's appeal has been it's utilitarian chunkiness, I always found the '5R to be a bit top heavy clipped to my belt, the antenna trying to upend the radio, so I seldom kept the radio clipped to my side for long. I usually just carried it. As for volume, compared to the '82...it's no comparison, the 5R's speaker sounds thin & tinny, the female voice commands a mumble most of the time, except when saying "Low Voltage" after a long day turned on. 

Please understand, I know I'm comparing Apples to Oranges here, the UV-82HP is a different radio model from a feature standpoint... as I soon found out, testing first how both worked, from a level playing field.

Rubber meets Road...RF meets Ozone
Testing for typical performance, I used both of my stock UV-5R HT’s & the '82HP at the same power levels, to compare their signal reports through a local repeater about 5 miles away. 
I discovered the UV-82HP receiver had some signal fading due to antenna orientation, vertical being distinctly stronger than horizontal. So did the UV-5R's, only not as much.
Yippie Ki... Huh? What?
Holding the radio upright, the received signal clears up fine. It’s not a big problem, it just means I can’t look cool holding the radio sideways like they do on TV or in the movies.

All things the same, only different...
It turns out under identical power levels & operating conditions, the UV-82HP’s transmitted audio signal into the repeater was louder than both UV-5R’s. This was confirmed through signal reports from my contact, who didn’t know which radio I was using. Perhaps carrier deviation is just hotter in this particular HT, but over all, the UV-82HP had a better quality signal than both of my UV5-R’s. Actually, I’m more lead to think it's the battery capacity of the different radio models making the difference, the UV-5R’s using stock 1500 mAh. batteries, vs the UV-82HP, with 1800 mAh. (That’s a little radio tech secret… you get a cleaner signal with greater battery capacity.) 
The batteries and supplied chargers are not interchangeable between the UV-82HP & the UV-5R.  
This may also explain the longer times between charges, just listening to the FM radio.

The Main Event
On testing range, I tried all three... the two UV-5R's, and the UV-82HP, to get into a distant repeater, each using their highest transmit power.
It ended up being no contest...
For this test, I worked into the 1500' blowtorch of the Pee Dee region, the W4PDE 2 meter repeater outside of Dillion SC, 57 miles away, it covers a 125 mile radius. 

With several attempts, both UV-5R’s couldn't raise the repeater, no response at all. 
I expected that, it was quite a stretch for 4 watt UV-5R’s to get that far, with me standing at street level. But surprisingly, the UV-82HP hit the repeater first time with ease.  My contact, Tim W2SOC, reported my signal clear & readable with some white noise. Still, a VERY respectable report. Later on that evening, back home, The UV-82HP reached the Dillion repeater again, this time at 50 miles. Sadly again, both UV-5R’s couldn’t cut the mustard. In the past, I had got into the Dillion repeater from my front porch with one of my UV-5R's ...on a good day. It wasn't one of those days for a UV-5R, but another day in paradise for the UV-82HP.


 

All things being the same, the UV-82HP has better signal quality overall than my UV-5R's. As for it’s greater power settings, it’s obvious the radio’s range is significantly greater.

Showing Off...
At this years local field day, the UV-82HP was the belle of the ball because it was NEW! 

I got the radio in the hands of as many Hams as I could for their feedback.  Owners of UV-5R’s liked it's fit & finish, and everyone liked it's greater power output. Those who own older UV-82’s were envious, but knew it was the logical next step in the model line. 
The two-button PTT feature, used to select between two banks of memory, was initially confusing for UV-5R owners, but they quickly caught on to how it eliminates need to manually select between memory banks, and allows you to work two separate stations, just by pressing one or the other key button. If you don’t like the feature, you can turn it off in the settings using programming software. 
One noted the '82 seemed more geared for using preset memories, which it is, arriving out of the box set up in channel mode. You hold down the menu button when turning on, to switch the radio to frequency mode. I also showed both radios to Hams who don't own neither radio, asked them to pick which one they like. Most chose the UV-82HP over the UV-5R because it felt "more like a radio”, (One even called the '5R "a toy radio")

Assessing UV-82HP's set up & ease of use. 
Right off the bat I noticed manual programming is more refined than with the UV-5R series, however, a practiced hand is still needed to set up & load memories manually. It’s obvious the radio begs to be programmed plugged into a computer, using programming software like CHIRP.  Incidentally, the ’82 doesn't come with programming software or a USB programming cable. Not a problem with those who already have a earlier model Baofeng, but if you’re new to the brand, you should consider getting the programming cable too. Trust me, you’ll want one, even with this radio. The included manual is thick, informative, and written by someone here in the US.
Using the most recent daily build of CHIRP software, (it’s very good free software BTW), & accessing repeaterbook.com for the local repeater list, I had the radio on the air, 5 minutes out of the box.


Summing Up
I’m impressed with the UV-82HP, it's a big step up from the UV-5R, with a more refined design. Overall, the radio is easy to set up using programming software & a USB cable, (which most Baofeng radio owners already own), and it has plenty of transmit power. It’s a perfect alternative to the popular high power variant of the UV-5R, the Baofeng BF-F8HP. It appears cross-compatibility of batteries & chargers between same model series radios would be a factor. If your comfortable with how a UV-5R operates, and seek greater power, then go with the BF-F8HP. However if you seek a more refined design in functions & form, along with very respectable range, you should take a serious look at the UV-82HP, I think you’ll be very glad you did.