to program the beacon use short clicks, series of clicks make numbers, 1second pause to separate the numbers, valid entry confirmed after 3s time-out: the LED blinks back the code you just entered.
1.x -start up delay x*20minutes, enter 1.2 for 40minutes delay, enter 1.10 to turn of the delay
2.X MODE selector, 2.2=beacon 2.1=audio transmitter(wireless microphone)
3.x channel set: 3.1 = custom channel(enter any freq. by enetring 6digit number), 3.2 ~3.8 FRS channels 2~8
4.x VOX sensitivity, 4.1 - highest: just abit noise needed to start TX in mic. mode or stop TX in beacon mode
5.x delay, if VOX has blocked the beacon it will remain standby atleast x*4seconds
6.x RF power: 6.1= lowest power (1mW)(only 1st tone in beacon mode), 6.7= highest (almost 100mW)
7.x RF modulation (deviation), default is 7.2 which is good for cheap walkie-talkies using 6kHz channl width, if you use HAM radio or plice scanner set 7.2 or 7.3 so it will sound louder
8.1 (default) = LED is strobing while standby, 8.2= LED is on only while pushing button
9.x not usued in current firmware (used to trim crystal in older beacons)
enter 6 digits to set your own TX frequency, say you want 423.110 = push 22.214.171.124.1.10 (10 clicks = Zero)
VOX beacon is easy to use esp. if flying with UHF LRS, wind and prop noise keep the beacon standby thus UHF LRS doesn't see inband noise and no failsaves can happen
when connecting the battery or single click battery status confirmed with series of up to 4 blinks, 4blinks if battery above 4v, 3blinks 3.8v, 2=3.7V, one =3.6v, one very short blink - battery is too low.
NO VOX version:
whenever you decide to reset defaults hold the button about 4s (till LED turms off)
Unlike VOX transmiter the non-VOX has decay on all intervals, say starting interval is 4s, within 5 hours it slowly grows to 25s then constant, decay makes the beacon very efficient, using 1S 138MaH Li-Po ond 2.4 and up interval setting one can expect days of operation.
hear the tones : http://www.youtube.com/watch?v=LiJDhvToRqE
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