R.V.R. Elettronica PJRL250, Technical Manual

Page: 11 / 69

PJRL250 Technical and Maintenance Manual
R.V.R. Elettronica S.r.l. (Bo) Pag. 11
1.5 PROTECTION CIRCUITS
The protection circuits set the amplifier in stand-by in the case of a
fault condition.
After 10 seconds the protection reactivates the amplifier if the fault has
disappeared.
If not, this process is repeated 4 times at the end of which the amplifier
stays disabled for few minutes; after few minutes, if the trouble persists
the protection performs other four cycles and then disable the amplifier
indefinitely.
If during these cycles the anomaly disappears and the amplifier works regularly
for more than few minutes the counting system is reset and the original
conditions established.
(NOTE The intervals described are indicative)
The protection acts for excessive SWR (the Internal SWR alarm is not actived),
over-temperature and overdrive, indicates the problem with warning lights and
disables the pilot exciter.
1.6 R.F. POWER AMPLIFIER MODULE
The amplifier employs the broadband modules with 50 Ohm input/output
impedance (SMA connectors).
The output power of module is 250W with 10W of drive.
1.7 DEVICE SPECIFICATIONS
Refer to Table A for electrical specifications, and to Table B for
dimensional and environmental specifications.
SECTION 2