Main!Supply; Cooling - OM POWER OM2000+ User Manual

External radio frequency power amplifier
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!
If)you)are)using)an)older)transceiver)or)transmitters)without)time)delay,)we)recommend)to)connect)
the)PA)in)such)a)way)that)the)transmit/receive)switch)(foot)switch)for)example))is)connected)with)
the)KEY)IN)socket)of)the)amplifier.)The)KEY)OUT)socket)is)to)be)connected)with)the)PTT)socket)at)the)
transceiver.)
The!amplifier!is!equipped!with!safety!devices,!which!ensure!that!the!output!relay!is!not!switched!under!
power!mistakenly!(hot!switching).!
KEY)IN) )
)
KEY)OUT!
!
!
4.4.
Main'Supply'
Be) sure) you) got) PA) with) properly) terminated) line) cable,) corresponding) with) your) power) system's)
outlet.) If) not,) contact) your) dealer.) In) such) a) case) you) should) make) the) necessary) changes) using) a)
licensed)electrician.))
!
Be)sure)that)your)power)system)is)correctly)wired)and)properly)rated!)To)use)adequately)sized)and)
connected)grounding)system)is)also)very)important.)
!
4.5.

Cooling'

'
The)amplifier)must)be)installed)in)such)a)way)that)free)flow)of)hot)air)from)the)tube)is)allowed.)Do)
not)obstruct)air)intake)and)exhaust)areas)of)the)PA.)
!
The!centrifugal!blower!provides!the!necessary!cooling!of!the!amplifier,!even!during!long!contests.!The!
blower!is!activated!by!switching!the!PA!on!and!it!is!turned!off!when!cooling!is!finished!(approx.!1a5!min!
after! switching! off! the! PA! depending! on! the! temperature! of! the! tube).! Blower! speed! (2! steps)! ! is!
setting!automatically!according!to!the!tube!temperature.!
!
!
CAUTION)
RCA!Phono)])Input!signal!PTT!switching!voltage!/!current!a!!5V!/2mA)!
RCA!Phono!a!Output!signal!PTT!(maximum!switching!of!30V!/!50mA)!
CAUTION)
WARNING!)
CAUTION)
!
!
!
!!!!!!!!!!!!Detailed!view!on!the!tube!and!blower!area.!
!!!!!!!!!!!!Antenna!switch!(above)!is!installed!inside!the!!
!
Exhibit!6!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Page!11!!from!35!
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metal!box.!
!
!

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