UHF RADIOS
Technical Requirements for UHF CB Radios All alpineSAR members must have a radio
The following are the requirements for a BSAR-compatible UHF CB Radio:
- Access to all 38 UHF voice channels with the capability to use repeater channels as required
- Simple and intuitive to use
- Must allow use of AA batteries, for the following reasons:
- AA cells are readily available at supermarkets and storesmost GPSs use AA cells hence only one type of battery need be carried
- BSAR already maintains a supply of AA batteries
- they are less likely to require changeover in the field due to their capacity
- others in your group and adjacent groups will also have AA cells
- either high capacity alkaline cells (preferred) or high capacity rechargeable nickel metal hydride cells can be used. Nicads are not recommended
- AA cells last significantly longer that AAA cells, especially in the very cold condition
- A key lock function so the radio does not accidentally change channel when bumped or in your pocket
At least 1.5 watt power output - less than this limits transmit coverage in difficult terrain
A physical ON/OFF switch, normally associated with the volume control. Some radios have an electronic ON/OFF switch that drains the batteries over an extended period of time
The radio should be readily available from electronics stores and not be a one-off special
A stout wrist strap and belt clip
A minimum of 24 hours of receive-only operation
Speaker/mike
Other desirable features should include:
- Availability of CTCSS tone functionality to reduce unwanted traffic
- Waterproof
- Battery save functionality – radio listens for a short time and if no activity goes to sleep for a short time
Features not required for BSAR use include:
- Rechargeable batteries and desktop chargers
- Power output of 5w. This draws excessive power on transmit, reduces battery life and often results in a physically larger radio
- Voice activation for transmission (VOX) as VOX activates automatically in high winds and blocks the channel to anyone else
The radio being purchased by BSAR is the Uniden UH044sx 2W radio Rik Head 23 Jul 07 |