Two Way Vhf Radio

I have a hand hand "Atlantis 2-Way VHF Marine two way radio Radio" Im wondering if i can still use this to contact other two way radios using the license free with short range in the UK?!

No Idea! though thankyou for providing your location......many don't....which can lead to incorrect answers!

2008-02-12 05:50:53 by Alex H

Uniden#39;s Atlantis 250 VHF includes weather alert, programmable scanning, dual-watch and tri-watch, and the option for replaceable or ...

order one from Motorola Parts.

also, maybe someone on www.batlabs.com might have one.

2010-01-25 07:16:05 by mehrdad

Price: $99.99

Simultaneously monitor up to two Coast Guard Distress/Hailing, one weather, and one regular marine channel
Supports all NOAA weather channels; emergency/weather alert function alerts you of any emergencies
Waterproof handheld marine VHF radio is factory programmed with all U.S., Canadian, and international channels
Rapid clip-on DC charger works in any standard 12 volt DC "cigarette lighter" style outlet; 3-year warranty
Brilliant backlit LCD display and backlit keypad make radio easy to use, day or night

depends on the needs.

If you are in flat terrain, then UHF may be best, in hilly areas, VHF may be best.

Trees absorb UHF more than VHF.

So many factors!

2010-03-04 05:24:58 by jow

Price: $225.00

38 Analog and 83 Digital Interference Eliminator Codes.
Up to 2W Power (1W low power setting).
Designed to IP-55 and MIL-SPEC specifications; channel scan with selectable scan list
38 analog and 83 digital interference eliminator codes; 12 hours battery life
Designed to IP-55 and MIL-SPEC Specifications.

What is the good and bad between UHF and VHF. What is the reason to use VHF instead of UHF or UHF instead of VHF.

UHF vs. VHF
This is another misunderstood area of wireless systems. It’s generally accepted that UHF has greater range due to higher power output, and is less susceptible to television interference. Again, there is truth to this but there are other factors to consider.

Power Output
For example, in the VHF spectrum from 174 to 216 MHz the maximum allowable transmitter output power is 50mW. In the UHF band maximum allowable transmitter power is 250mW. Higher output power from the transmitter helps overcome dropout problems and increases operating range, but the sacrifice is shorter battery life. The actual effective radiated power is heavily affected by the individual transmitter’s antenna, so a higher output power does not necessarily mean greater operating range. Most high-quality VHF transmitters produce the allowed 50mW, for reliable operating range and reasonable battery life. UHF transmitter output power varies much more widely from one brand to another than VHF units. The maximum allowance of 250mW in the UHF spectrum is useful when maximum operating range is the prime concern. 100mW is commonly chosen for UHF transmitters as a good balance between operating range and battery life.

VHF & UHF
Wireless mic systems generally operate in several bands from 150MHz to 216MHz, which includes the VHF TV channels 7 through 13, or in the 470MHz to 806MHz UHF band (TV channels 14 through 69). TV channels 60 to 69 (746 to 806MHz) are being re-allocated, as of the date of this writing, for other applications. In addition, the band from 470 to about 516MHz is also being re-allocated for public safety applications. The demand for more spectrum usage is increasing while the available spectrum for wireless microphones is decreasing. Above the TV band is another part of the UHF spectrum from 902 to 928MHz. This upper UHF band is a "general purpose" band being used by a multitude of different applications ranging from garage door openers and amateur radio, to home-use cordless telephones. Generally speaking, the 902 to 928Mhz band is not a good choice for wireless microphone systems, especially for professional use in traveling applications. Interference is virtually guaranteed in this band. So again, it is unreasonable to assume that UHF is better by default.

2008-07-17 03:14:25 by www.worlddect3.co.uk

The information is here: http://developer.motorola.com/products/t wowayradios/gp338/ but you need to register as a developer to get it.

Just in case you don't already know, do not transmit on frequencies that you aren't licensed for. You will get caught and you will be prosecuted.

2010-01-28 07:55:50 by ROBERT