12 troubleshooting 13 technical specifications – Topcom Twintalker 1400 User Manual
Page 7

TOPCOM TWINTALKER 1400
7
TOPCOM TWINTALKER 1400
ENGLISH
11.8.2 De-activate monitor mode
•
In monitor mode, press the
- button or the
- button to de-activate the monitor mode
or wait 5 seconds for monitoring to stop automatically.
11.9 ROGER BEEP ON/OFF
After the
- button is released, the unit will send out a roger beep to confirm that you have
stopped talking.
To disable the roger beep.
•
Turn the units off (§11.1)
•
Press and hold the
- button while turning the unit on. (§11.1)
To enable the roger beep, follow the same instructions.
12
TROUBLESHOOTING
13
TECHNICAL SPECIFICATIONS
No power
Clean the battery contacts with a soft cloth.Replace the
batteries
No transmission
Make sure the
- button is pressed completely before you
speak. Monitor the channel activity and switch to another
channel if the current is used.
No reception
Check the speaker volumeMake sure that you are in the
reception range of the sender and change if necessary your
location
Limited Range and noise during transmission
The talking range depends on the terrain. Steel constructions,
concrete buildings or the use in vehicles have a bad influence
on the range.Try to avoid as many obstacles as possible and
communicate in a clear line of sight.Change your locations.
Interference
The receiver and transmitter are to close. The mimimum
distance between 2 units must be 1,5m.
Channels
Frequency
Range
Batteries
Transmission Power
Modulation Type
Channel spacing
8
446.00625MHz - 446.09375 MHz
Up to 3 Km (Open field)
3 x AAA Alkaline or NiMH rechargeable
=< 500mW ERP
FM - F3E
12,5 Khz
PTT
PTT
PTT
Channel Frequency Chart:
Channel Frequency
(MHz)
1
446,00625
2
446,01875
3
446,03125
4
446,04375
5
446,05625
6
446,06875
7
446,08125
8
446,09375