Translate Element

Kamis, 08 September 2011

Kerusuhan Sampit, Kalimantan Tengah (Riots Sampit, Central Kalimantan)

video

Kerusuhan bernuansa suku, agama, ras, dan antargolongan (SARA) yang terjadi di Kota Sampit, Kotawaringin Timur, Kalimantan Tengah terus melebar. Aksi serupa ditiru warga di Kecamatan Mentaya Hilir. Warga lokal membakar puluhan rumah warga pendatang dari etnis tertentu sebagai balas dendam, Selasa (20/2) malam.

Penduduk juga mengusir seluruh warga pendatang dari etnis tertentu di Kuala Kuayan, Ibu Kota Kecamatan Mentaya Hilir. Akibatnya, kurang lebih 110 warga pendatang mengungsi ke Gedung Serbaguna setempat untuk menghindari amukan warga lokal. Sementara itu, Senin malam, tidak kurang dari 50 warga pendatang yang terpaksa mengungsi telah memasuki Kota Palangkaraya dan menuju Kota Banjarmasin, Kalimantan Selatan. Hingga Selasa malam, suasana Kuala Kuayan masih tegang. Puluhan pasukan keamanan yang ada di Kota Sampit diberangkatkan ke sana.

Keadaan yang sama juga terjadi di Kota Sampit. Kondisi Kota Sampit kian mencekam karena ratusan penduduk lokal yang berasal dari daerah Katingan dan Saruyan, Kotawaringin Timur, berhasil memasuki lokasi kerusuhan. Sebagian besar jalan yang sebelumnya diduduki kelompok warga pendatang dari etnis tertentu direbut penduduk lokal.(TNA/Ririen Binti) (kutip dari liputan6.com)
Riots nuanced ethnicity, religion, race, and the Intergroup, which occurred in the town ofSampit, Kotawaringin East, Central Kalimantan continues to widen. Replicated similaraction in the District Mentaya Downstream residents. Local residents set fire to dozens of houses of a certain ethnic immigrant population as a revenge on Tuesday (20 / 2) night.

Residents also expel all migrants from certain ethnic Kuala Kuayan, Capital District HilirMentaya. As a result, approximately 110 immigrant population fled to the localMultipurpose Building to avoid the wrath of local residents. Meanwhile, late Monday, nofewer than 50 residents displaced migrants had entered the city and to the city ofPalangkaraya Banjarmasin, South Kalimantan. Until Tuesday night, the atmospherewas still tense Kuala Kuayan. Dozens of security forces in the city of Sampit dispatchedto it.

The same situation also occurred in the city of Sampit. Condition of the City Sampitincreasingly tense as hundreds of local residents who come from areas Katingan andSaruyan, East Kotawaringin, managed to enter the location of the riots. Most of theroads that were previously occupied by groups of migrants from certain ethnicdispossessed local inhabitants. (TNA / Ririen Bint) (quotation from liputan6.com)

Jumat, 01 Oktober 2010

BLX15 150 Watts NoTune FM broadcast (87,5-108MHz) RF-amplifier




BLX15 150 Watts NoTune FM broadcast (87,5-108MHz) RF-amplifier

All component values are drawn on the .comp and .silklayer bitmaps, with the following
exceptions;

1.- the collector 'choke' is constructed of a 220-Ohms 2 Watts carbon composite (i.e. Allen
Bradley or similar) resistor with an air-coil wound around the resistor body.
the air-coil consists of 5 Turns, 10 mm internal diameter, 1.2 mm enamelled copper
wire neatly spaced over the whole resistor body.
the air-coil is then soldered on both ends together with the individual resistor wires.
2.- the FXC1 wideband choke has 1/2 turn and is mounted vertically (a VK200-19/4B wideband
choke has 2.5 turns, so remove i.e. unwind 2 turns from this choke to get the desired
result)
3.- the resisitor mounted at the base of the blx15 is also a 2 Watts carbon composite
resistor with a ferroxcube-bead over one end of the resistor wire (the one wich is
connected to the base of the rf-transistor). The bead is 3 mm diameter and 5 mm in
length.
4.- connect the bottomlayer (groundplane) on several points (through via's) with the
toplayer of the pcb. THIS IS VERY IMPORTANT!

(!) solder the 2 pcs. 150pF capacitors, the 22-Ohms resisitor (with bead) and the ferroxcube
wideband choke (FXC1) as close as possible at the base of the blx15.

Notes

(I) all capacitors (unless otherwise noted) are silver mica types

VCC = Supply voltage 50 Volts at approx. 3.5 Amps.

CuL = magnetwire, enameled copper wire, insulated (rigid) copper wire e.t.c.
(Note: 1 mm equals approx. to #18 A.W.G
1.2 mm equals approx. to #17 A.W.G
0.8 mm equals approx. to #20 A.W.G
0.3 mm equals approx. to #28 A.W.G.)

(I) all diameters are measured from the inside of the coils, i.e. 'internal' diameter.
(II) make sure to mount the rf-transistor on a appropriate heatsink and use some thermal
heatsink compound between the flange and stud of the transistor and heatsink!
(Thermal resistance heatsink at least 6°C/W.)
(III) all parts are soldered directly on the toplayer of the pcb.

10mW-8W -rf amplifier (for 87.5-108MHz use only)







Supply voltage : 13,8 Volts (Vcc)
Power input : 10mWatts (approx.)
Power output : 8 Watts

RF Amplifier 40Watt (2SC1971 & mrf240) FM


2KW RF Amplifier with screengrid modulation (QB 7,5 1750)

RF Amplifier 5Watt (SD1127)