Oricom International Pty Ltd E: marketing oricom. Devices such as a breathing movement monitor are sure to settle your mind when your little one is fast asleep, but This radio is two times smarter than the competition - get the best from two antennas without the need The Oricom Babysense7, an Infant Apnoea Alarm, offers parents or caretakers a form of peace of mind, by improving With so many of these devices available as aftermarket accessories in Australia, we decided we would piece together everything You may have heard that lullabies and nature sounds help create a tranquil environment for sleep, but in fact, We have compiled 5 reasons below as to why we think you should consider the CARE80 for yourself, or When selecting an in-vehicle or hand-held unit, buy the best power and quality you can afford, after-all this is A VHF marine radio is arguably the most important safety tool on board any vessel.
Ensuring you have a Oricom continue to prove their meticulous attention to detail and industry expertise, and the HFS Non-Contact Infrared Thermometer is The recently released Oricom TV Wireless TV Headset is an audio amplification system specifically designed for people with hearing Be the first to know about our new products. Very high frequency is commonly used for FM radio broadcast, two-way land mobile radio systems, long-range data communication, and marine communications, just to name a few.
VHF waves must not exceed the local radio horizon of miles. VHF frequencies are less likely to be interrupted by atmospheric noise, issues with electrical equipment, and other interferences. There are different bands within VHF frequency, including low-band and high-band. Low-band VHF range of 49 MHz includes transmission of wireless microphones, cordless phones, radio controlled toys and more. Despite the potential background noise this a popular option because of the low cost equipment.
Transmission power is limited to under 50 mW, unless you are operating an assistive listening system in the MHz range. Also, a large antenna booster is necessary, measuring as much as 3 feet in length, thus limiting portability. High-band VHF range is popular for professional applications. The lowest high-band MHz includes 8 different frequencies designated by the FCC, and is often used by the general public and wireless microphone devices.
For best results you typically only want to operate two to three units on this frequency. High quality audio is possible as well as smaller antenna size, down to 14 inches or less. The same 50 mW power restrictions apply. Travellers also prefer to utilise their roof rack space for carrying supplies.
If the roof is not on the cards, then other good locations to mount an antennal can include: the front guard or on the bull bar, which is probably the most common. In all types of UHF antennas, feed line loss can be a constant threat in regards to performance. Bad feed lines can swallow up half or more of your transmitting power and therefore degrading reception. Loss can be determined by length and quality of the feed lines, so the use of thicker co-axial cables over thinner ones is a much better option.
Some common cable specifications, each being 50ohm impedance and the loss figures on a 30m run are listed below:. Handheld models are also popular with obvious advantages of portable, the high advances in electronic technology and their increased affordability. There are some top end models that have a range of up to 12km with an impressive 5 watts of TX output power. As well as being lightweight, ruggedly built with waterproof construction, these CBs are no toy. These units can be very handy for travellers in a whole range of situations.
With handheld units, you have an extra level of safety and peace of mind when heading off on solo excursions away from the vehicle, or campsite for minimal cost. Some travellers have employed the hand held whilst maneuvering into a site. This is tactic utilises a hand held in the hand of the person guiding and either a second hand held or a fitted unit in the vehicle. You must be logged in to post a comment. This will guide you to what type of UHF radio you are going to purchase i.
The mounting location of your antenna will help you decide what type of antenna you are going to install. Video Antenna radiation patterns. Ground plain 1m 38s playtime. Antenna radiation patterns. Gain radiation patterns 2m 28s playtime Antenna gains As gain is increased, the radiation gets compressed into a thinner pattern and reaches out further to the side. Medium gain antennas dBi are good all round antenna which works well in hilly and flat terrain.
Compare a couple of antenna that are displayed next to each other in a store, or check the physical length of the antenna in a catalogue. If one is claiming 6. Antenna Installation As discussed previously most UHF antennas require a ground plane, which means they should be mounted on top of a metal surface.
These 2 videos introduce you to types of antenna and placement on your vehicle. Antenna type 3m 15s playtime Antenna placement 1m 28s playtime Co-Axial Cable In all types of UHF antennas, feed line loss can be a constant threat in regards to performance. Some common cable specifications, each being 50ohm impedance and the loss figures on a 30m run are listed below: RGU series including the RGC has a loss factor of Share this: Share Click to share on Facebook Opens in new window.
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