Foxhunt VK3YNG Sniffer 4 Manual de instruções - Página 13

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VK3YNG Sniffer 4 Instruction Manual (for V2.2 hardware)

Reduced Functionality Mode:

In this mode, most of the special features of the sniffer are disabled. This mode is
useful when a newcomer or a scout group etc uses the sniffer. (Hence why some users
call this "Scout Mode") Memories can only be recalled and most of the other keys,
including volume control are disabled. The power button only acts as a simple on-off
and the mode of operation is defined by what is stored for each channel.
To set the sniffer in reduced functionality mode, press and hold the "F" button while
powering up.
To cancel reduced functionality mode, press and hold the "7" key while powering up.

Maximising Battery Life

There are a number of solutions for extending battery life with the sniffer. The most
critical one is the volume setting. Battery life is reduced considerably when using the
internal speaker on a high volume level with a continuous signal. Use the lowest
volume level possible when using the internal speaker or use external headphones.
The display also operates at a higher intensity level for daytime use that puts more
load on the battery. Typically night time only operation increases alkaline battery life
by about 30%.
Users who would like to get the longest use between battery changes should consider
using Lithium AA batteries. These batteries have a very long shelf life and capable of
providing well over 14 hours of continuous daytime operation.
Do not use single cell NiCd or NiMh batteries as their terminal voltage (1.2V) is too
low. Zinc Carbon and General Purpose Manganese batteries are also not
recommended. (For the technically capable however, it is possible to modify the
sniffer to run off three AA NiCd or NiMh batteries by the external addition of an extra
single cell AA battery holder. Capacity of NiMh batteries nowadays is rapidly
approaching that of standard Alkalines)
© 2004, Bryan Ackerly, VK3YNG
Rev 2.2a
Page 13