BTECH AMP-U25D Handheld Radio Amplifier / AMP-25 Series
Вставка
- Опубліковано 4 бер 2018
- BTECH introduces a RF Amplifier Blowtorch for Handheld UHF & VHF radios! 2 to 6 watts in produces 20 to 40 watts out. I try out the UHF capable model that's also DIGITAL MODE capable.
4 Models Available on Amazon:
U25D (UHF + Digital Modes) = amzn.to/2AyrB7J
V25D (VHF + Digital Modes) = amzn.to/2FdYIux
U25 (UHF) = amzn.to/2FcHqhr
V25 (VHF) = amzn.to/2oSEL5w - Навчання та стиль
Thanks for demo and like the j pole!
Thanks! That Arrow dual-band J-pole is BULLETPROOF!
Congratulations, I really liked your video. I'll buy one of these.
If you already have a handheld & a 12 VDC power supply, this is a great option.
But if you can afford it, I'd also suggest considering getting a dedicated base radio. Weigh the options.
Going this route requires investing in an external power supply & external antenna. If you went with a base radio you get that as an integrated radio & power supply combined. It's just one less thing to bother with.
I have power supplies & external antennas already, so adding this amp to my collection of handhelds gives me additional capability of having a decent portable field base station whenever necessary without having to break down a base station for transport.
Great vid 👍🏻 from the 🇬🇧 uk
Thank you! We aim to please.
Have you tried the amp and your handheld in your car since it comes with a cigarette lighter adapter?
As in the specs... 2 watts in / 20 watts out. 6 watts in / 40 watts out. I only use it as a base amplifier. Most car lighter plugs supply less current than what the Amp could draw at higher power. If you want to use it mobile I'd suggest wiring it directly to the car battery. You'd likely blow a fuse otherwise. At least operate the Amp for the lower power output.
Isn't that a dual band radio? But the amp is only one band. Can you still transmit on the other band? What is the cost of the amp?
The Radio is indeed dual band, however the Amp is only for the 70 CM band. RF Amplifiers all have limitations as to the band spread they can operate in. Operating outside the tuning parameters of a linear amp results in high reverse SWR and can damage the power amp circuit.
Distance of repeater you called ?
That repeater is located well over 20 miles away. In the video I forgot to mention it was one I couldn't reach with just the handheld, even with the J-pole antenna. The power amp got it loud & clear.
What is the amp output of the UV-5R radio at 2 and 6 watts? My portable power supply and car both utilize 10 amp 12-volt outlet.
73,
James
As in the specs... 2 watts in / 20 watts out. 6 watts in / 40 watts out. A 10 Amp supply would be hard pressed to operate beyond 25 watts. Operating at high power, you'd risk blowing a fuse or worse unless you really limit your keydown time.(No long rag-chews)
Otherwise, count on operating at low power with 20 watts out. It's why BTECH mobiles output 25 watts, when offered with a cigarette plug. The car lighter plug & accessory circuit isn't designed for higher current draw. The alternative would be to not use the cigarette lighter plug in the mobile and going directly to the battery instead.