OM POWER OM2000+ Manual page 27

To s tart t he s econd m ethod o f f ine t uning, p ress S 2 ( TUNE) b utton i n O PER m ode.
Apply input power according tune table (or lower) for selected band and press PTT. Use TUNE knob
to g et m aximum o utput p ower. U se L OAD k nob t o g et I s g raph i ndicator w ithin t he b oundaries.
After p roper f ine t uning r elease P TT a nd p ress S TOP b utton. P A i s n ow p repared f or o peration.
After this procedure the amplifier is tuned correctly and ready to give 2000 W (1500 W) output
power i n a ll o peration m odes. A t o ptimal t uning a nd f ull o utput p ower a p ositive m ax. 5 0mA c urrent
goes t hrough t he s econd g rid.
If the amplifier demonstrate any malfunctions during tuning or it does not behave in accordance
witch t he d escription, i nterrupt t he t uning p rocedure i mmediately a nd c heck t he a mplifier! B e s ure
not to do any mistakes in choosing bands or TUNE/LOAD values! Be sure that VSWR is not higher
than 2 :1 a nd i nput p ower i s L OW!
After e xcluding p ossible h uman m istakes y ou w ill b e a ble t o w ork f or l ong t ime w ith t his a mplifier!
PA is in the operation mode. After TUNE
button (S2) was pressed, it changes its
function. N ow S TOP i s b linking.
Do n ot p ress S TOP b utton y et!
Display s hows p roperly t uned P A.
TUNE indicator is in the middle, Screen
current i s h igher, b ut s till i nside t he l imits.
View on the properly tuned PA. Analog
wattmeter shows forwarded and reflected
power.
CAUTION
26