3 connecting helixnet partyline to tempest, 1 about tempest, Connecting helixnet partyline to tempest – Clear-Com HLI-FBS User Manual
Page 95: About tempest
3. On the RTS device (in this case, the MCE325), adjust the nulling (if necessary) on the channel to
which the HMS-4X Main Station is connected.
Nulling helps to reduce echo while talking on a two-wire audio system. A sidetone nulling
trimmer (control) is provided for each of the four channels on the device.
To adjust a sidetone nulling trimmer:
a. Turn the speaker switch on (even if an external speaker is not connected). This turns off
the internal sidetone trimmer, which controls the sidetone level in headsets
.
b. Turn on the microphone. Activate the relevant Talk button and speak into the
microphone.
c. To minimize echo, adjust the sidetone nulling trimmer (located under the CH1 and CH2
rotary controls).
Note:
The default setting for each trimmer is for maximum nulling of the microphone signal when a 200-
ohm resistance terminates the channel. However, you may have to adjust the nulling according to
the system configuration.
9.3 Connecting HelixNet Partyline to Tempest
9.3.1 About Tempest
Tempest is a digital wireless intercom system, comprising a basestation (Main Station) and beltstations
(beltpacks). There are two-wire and four-wire versions of Tempest available. The system operates in
either:
• The 2.4GHz ISM band (Tempest 2400 models).
• The 900 MHz ISM band (Tempest 900 models).
Tempest is not a Wi-Fi product and operates license-free in most countries (the product is licensed in
FCC and CE countries).
Tip:
For more information about Tempest, see your Tempest documentation or visit the wireless intercom
pages on the Clear-Com website:
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HelixNet Partyline User Guide