TOKYO HY POWER HL-350VDX 350 WATT 144 MHz SOLID STATE POWER AMPLIFIER

General :

• Manufacture price : USD 800
• Condition              : New
• Manufactured        :  200x (Japan)

Personal review :

• 144 ~ 148 MHz linier amplifier (SSB, FM, CW) consist of 5 x MRF247 Power Transistors.
• 330 Watt maximum output power at 13.8 VDC, 50 Amp
• Manually selectable Input 10/25/50 Watt
• Manually selectable RX amplifier gain -20/+6/+15 dB
• Analog meter Indicator with RF Power Meter, VSWR meter, and Voltage Input meter.
• Heat-sink inside cabinet with additional DC fan
• Automatic protection from High VSWR, Hi Temperature.  

GS31B 1200 Watt VHF/UHF Power Triode Tube

Conclusion :

• Estimated price : USD 120
• The GS-31b triode fulfills generation and amplification functions in grounded-grid circuits in continuous wave operation in the decimetric and metric wavelength ranges. It is physically identical to the GS-1b, but with minor electrical differences.

GENERAL
Cathode: indirectly heated, dispenser, oxide-coated.
Envelope: metal-ceramic.
Cooling: forced air.
Height, mm, at most:	with heat sink: 147
	without heat sink: 134
Diameter, mm, at most:	with heat sink: 100.2
	without heat sink: 65
Mass, kg, at most:	with heat sink: 1.2
	without heat sink: 650

A - anode; C - grid; KP - cathode and heater; P - heater

ENVIRONMENTAL OPERATING CONDITIONS
Vibration loads:
frequency, Hz	5-2,000
acceleration, m/s²	98
Multiple loads with acceleration, m/s²	343
Single impacts with acceleration, m/s²	1,470
Linear loads with acceleration, m/s²	490
Ambient Conditions:
Temperature, °C	-60 to +70
Relative humidity at up to +40 °C, %	98

NOMINAL ELECTRICAL PARAMETERS
Heater voltage, V	12.6
Heater current, A	3.4
Mutual conductance (Va = 2KV, Ia = 250mA, change in Vg = 1V), mA/V, at least	22
Operating point (negative Vg with Va = 2KV, Ia = 250mA), V	9
input capacitance, pF	21.5
output capacitance, at most, pF	4.5
transfer capacitance, pF	0.12
Warm up time, s, at most	120
Output power, Va = 1.8KV, Ia = 500mA, wavelength 60 cm, W:	>360
Output power, Va = 1.7KV, Ia = 700mA, wavelength 30 cm, W:	>180
Designed Tube Life (hours)	>1000

ELECTRICAL PARAMETER LIMITS
Heater voltage, V	12-13.2
Heater current, A	3.1-3.7
Operating point (negative Vg with Va = 2KV, Ia = 250mA), V	6-12
input capacitance, pF	19-24
output capacitance, pF	3.8-5.2
Maximum CW Anode voltage (Va), KV:	3
Maximum Instantaneous value Anode voltage (Va), KV:	6
Instantaneous value Grid voltage (Vg), V	-400 to +120
Maximum CW Cathode current (Ic), A	1.4
Anode Dissipation, W:	1.0x103
Grid Dissipation, W:	22
Temperature at anode lead, °C	200
Temperature at cathode and grid leads, °C	120
Temperature at external ceramic parts, °C	250
Wavelength,cm	28-100

Averaged Characteristic Curves: Uf = 12.6V; _______ anode; _ _ _ _ grid-anode	Averaged Characteristic Curves: Uf= 12.6V; _______ anode; _ _ _ _ grid-anode
Averaged Characteristic Curves Showing Output Power and Efficiency versus Anode Current: Uf = 12.6V; L = 30cm; _______ output power (P); _ _ _ _ efficiency (n)	Averaged Characteristic Curves Showing Output Power and Efficiency versus Anode Current: Uf = 12.6V; L = 30cm; _______ output power (P); _ _ _ _ efficiency (n)

NOKIA N9500 COMMUNICATOR SERVICE REPAIR MANUAL

General :
Estimated price : USD 20 ( Rp 200,000,-)
Condition : Working but the plastic casing have several crack/damage.


Background:
Having an obsolete Nokia Communicator model N9500 with severe condition caused by incidentally felt from desk. even the machine still working perfectly but the plastic casing was crack.
Trying to investigate inside of phone based on schematic, I have found some of components are useful for RF hobbyist.


Herewith the pictures :




The detail of motherboard picture is :




Based on both this picture and the schematic, we can indentify some of useful component as follows:

• 19.5 dB DC ~ 2 GHz LNA module (model BGA428) - for Wide band Low Noise - Receiver Amplifier
• 2 Watt Power Amplifier module 900/1800/1900 MHz
• WLAN module - MAX2821
• WLAN 2.4 GHz 1 Watt Power Module - RF5117
• Blue tooth module
• Chip Crystal (32 kHz, 12, 22 MHz) - for PLL or microcontroller projects
• VCTCXO 26 MHz - for obtain high stability oscilator
• VCO Module 3296 ~ 3980 MHz
• Mixer Module
• Ferrite bead (100 MHz)
• Various value Chip Coil (1.5; 2.2; 3.3; 4.7; 5.6; 8.2; 10; 12; 18; 22; 27 nH etc)
• Various value Chip Capasitor (12 pF ~ 220 uF)
• Various value Chip Resistor 63 mW (10 ~ 300 KOhm)
• BP-5L High Capacity Lithium Ion Battery (1500 mAH, 3.7 Volt)
• TFT 640 x 200, 65K Color LCD and 128 x 128, 65K Color LCD - for microcontroller projects
• VGA Camera

Picture of Power Amplifier Module and LNA

2SC3102, MRF650, MRF658 - UHF RF Power Transistor Test Result based on Datasheet

2SC3102
Estimated price : USD 35
Manufacture : Mitsubishi
Frequency test : 520 MHz
Output Power : 60 Watt, V supply12.5 Volt, Input : 20 Watt
Typical Gain : 4.8 dB
Maximum Output : 85Watt on 15 Volt, Power Input 25 Watt - Not recommended
Maximum Supply : 17 Volt
Efficiency : 65%




MRF650
Estimated price : USD 35
Manufacture : Motorola
Frequency test : 512 MHz
Output Power : 50 Watt, V supply 12.5Volt, Input : 20 Watt
Typical Gain : 5.2 dB
Maximum Output : 80 Watt on 16 Volt, Power Input 17 Watt - Not recommended
Maximum Supply : 16.5 Volt
Efficiency : 60%



MRF658
Estimated price : USD 40
Manufacture : Motorola
Frequency test : 512 MHz
Output Power : 65 Watt, V supply 12.5Volt, Input : 20 Watt
Typical Gain : 4.15 dB
Maximum Output : 120 Watt on 16 Volt, Power Input 35 Watt - Not recommended
Maximum Supply : 16.5 Volt
Efficiency : 50%

YAESU VX-8R, VX-8DR & VX-8GR 50/144/220/430 MHZ TRANSCEIVER

General :

• Manufacture price :  
• Yaesu VX-8R  USD 399,95
• Yaesu VX-8DR USD 419,95 
• Yaesu VX-8GR (waiting FCC approval)

Personal review :

• VX-8R /VX-8RD
• Quad-band (50/144/220/430 MHz) Transceiver.
• Bluetooth for hands-free Operation with optional accessories. 
• Waterproof/Submersible IPX7 rated-3ft for 30 minutes
• Optional FGP-2 GPS and antenna unit, CT-136 Adapter or MH-74a7a external mic. for GPS/APRS® operation (VX-8RD)  

• VX-8GR
• 144/430 Dual Band Transceiver
• GPS unit included Built-in GPS Antenna which is based on a 12-channel receiver for GPS/APRS® operation.  
• Wide Band Receiver for 108-999 MHz, 
• IPX-5 Water jets. – A  lower cost V/U APRS® handheld.
• MINUS TX/RX on 50 MHz/6m
• MINUS TX/RX on 220 MHz
• MINUS RX on HF band
• MINUS Bluetooth
• MINUS SU-1 Barometer sensor
• MINUS WFM RX, thus can not receive FM/Television broadcast 
• No water immersion 

Additional Information :

The Yaesu VX-8DR and VX-8GR are an APRS® enhanced versions of the VX8R Series. VX-8GR a lower cost V/U APRS® handheld by the built-in Worldwide Standard AX.25 Data TNC (1200/9600 bps data B band only).

• Key additional features include:
  - Smart Beaconing™ Function. – The beacon timing is automatically adjusted
  - Station List memories has increased from 40 to 50.
  - The number of APRS® Message Memories has increased from 20 to 30.
  - DIGI-PATH route indication function.
  - 8 DIGI-PATH routing settings
  - GPS Compass Display -”Heading Up” or “North Up”
  - APRS® Symbol Icon pre-set function
  - Clearly displayed APRS® Beacon Messages
  - Selective Message received indicated by Flashing LED

YAESU FTM-350 144/430 MHz DUAL BAND TRANSCEIVER

General :

• Manufacture price : USD 650
• Manufactured : 2009 (Japan) 

Main board

Personal review :

• True dual band with big and bright display (dual display, dual receiver/transmitter)
• Full duplex with cross band capability.
• Superior receiver sensitivity with wide band receiver (108 ~ 999 MHz) Aircraft receiver (AM), FM stereo receiver.
• No inter modulation problem on VHF band.
• Flat power output 5, 15, 50 Watt both UHF (400 ~ 470 MHz) and VHF (136 ~ 174 MHz).
• 220 MHz capabilities (1 Watt power output).
• Mini spectrum analyzer / High speed Band scope - The band scope functionality on this rig is really good and works on both receivers at the same time.
• Built-in Barometric Pressure Sensor - The radio can monitor and display your altitude and pressure.
• Independent RF Gain, DCS, and Tone Squelch.
• GPS receiver (optional GPS card, antenna required)
• Blue tooth capabilities.
• Mic, manual book, box, support included.

SONY PSP Play Station Portable

Another effort to share know how related to Sony PSP 2000 hardware

Plastic casing was removed

LCD panel and Motherboard was removed

Motherboard

2SC2782, 2SC5125, SD1477, MRF 247 VHF RF Power Transistor Test Result based on Datasheet

2SC2782

• Estimated price : USD 30 
• Manufacture : Toshiba 
• Frequency test : 150 MHz 
• Output Power : 70 Watt, V supply12.5 Volt, Input : 10 Watt 
• Typical Gain : 6,7 dB 
• Maximum Output : 105 Watt on 14 Volt, Power Input 20 Watt - Not recommended 
• Maximum Supply : 16 Volt 
• Efficiency : 70%

2SC5125

• Estimated price : USD 35 
• Manufacture : Mitsubishi 
• Frequency test : 150 MHz 
• Output Power : 60 Watt, V supply12.5 Volt, Input : 10 Watt 
• Typical Gain : 7.2 dB 
• Maximum Output : 120 Watt on 16 Volt, Power Input 20 Watt - Not recommended 
• Maximum Supply : 17 Volt 
• Efficiency : 60%

SD1477

• Estimated price : USD 40 
• Manufacture : SGS Thomson Microelectronics
• Frequency test : 150 MHz 
• Output Power : 70 Watt, V supply12.5 Volt, Input : 10 Watt 
• Typical Gain : 6.0 dB 
• Maximum Output : 105 Watt on 12.5 Volt, Power Input 25 Watt - Not recommended 
• Maximum Supply : 18 Volt 
• Efficiency : -

MRF247

• Estimated price : USD 40 
• Manufacture : Motorola 
• Frequency test : 150 MHz 
• Output Power : 95Watt, V supply12.5 Volt, Input : 10 Watt 
• Typical Gain : 7.0 dB 
• Maximum Output : 120 Watt on 16 Volt, Power Input12 Watt - Not recommended 
• Maximum Supply : 18 Volt 
• Efficiency : 60%

KENWOOD PS-50 20 Ampere Heavy Duty Power Supply

General :

• Estimated price : Rp.800.000 (USD 80)
• Condition : All components are original as per manufacture specification

Personal Review :

• Power input : 120/220/240 VAC 10%,50/60 Hz
• Output current : 20A max. (Continuous operation for 1 hour. Includes external output terminal), 16A max, (External output terminal)
• Output Voltage : 13.8 VDC +/- 0,7V (At load current variation from 2 to 20A)
• Ripple voltage : Less than 20 mVrms (At 13,8 VDC, 20A)
• Power consumption :Approx. 500W +/- 10% (At 13.8 VDC, 20A)
• Feature included remotely switched on and off with the TS-440S power switch.
• Built in internal Fan instead of large heat sink as model PS-30
• Dimensions :W 173 (173) x H 95 (107) x D 296 (329) mm.
• Weight Approx. 7.2 kg

KENWOOD PS-30 20 Ampere Power Supply

General :

• Estimated price : Rp.800.000 (USD 80)
• Condition : All components are original as per manufacture specification

Personal Review :

• Power input : 120/220/240 VAC 10%,50/60 Hz
• Output current : 20A max. (Continuous operation for 1 hour. Includes external output terminal), 16A max, (External output terminal)
• Output Voltage : 13.8 VDC +/- 0,7V (At load current variation from 2 to 20A)
• Ripple voltage : Less than 20 mVrms (At 13,8 VDC, 20A)
• Power consumption :Approx. 500W +/- 10% (At 13.8 VDC, 20A)
• Feature included remotely switched on and off with the TS-130S power switch.
• Large heat sinks and automatic overload reset.
• Dimensions :180x133x287 mm
  
• Weight Approx. 8.9 kg
  

GS35B VHF/UHF Power Triode Tube

Conclusion :

• Estimated price : USD 120
• The GS-35b triode provides continuous wave generation in external-feedback self-sustained oscillators and grounded-grid amplifiers up to 1,000 MHz. The GS-35a version of this tube which is intended for water cooling, which adds 500W to the allowable anode dissipation. As with most Russian power triodes, the heat sink on the GS-35b is removable.

GENERAL
Cathode: indirectly heated, dispenser, oxide-coated.
Envelope: metal-ceramic.
Cooling : forced air. Click on "cooling" link for details!
Height, mm, at most:	with heat sink: 177
	without heat sink: TBD
Diameter, mm, at most:	with heat sink: 100.2
	without heat sink: 65
Mass, kg, at most:	with heat sink: 2.8
	without heat sink: TBD

A - anode; C - grid; P - heater; KP - cathode and heater

ENVIRONMENTAL OPERATING CONDITIONS
Vibration loads:
frequency, Hz	50-200
acceleration, m/s²	59
Multiple impacts with acceleration, m/s²	343
Linear loads with acceleration, m/s²	88
Ambient Conditions:
Temperature, °C	-60 to +70
Relative humidity at up to +35 °C, %	98

NOMINAL ELECTRICAL PARAMETERS
Heater voltage, V	12.6
Heater current, A	2.95
Mutual conductance (Va = 2KV, Ia = 250mA, change in Vg = 1V), mA/V, at least	32.5
Operating point (negative Vg with Va = 2.5KV, Ia = 400mA), V	9
input capacitance, pF	21
output capacitance, at most, pF	4.4
transfer capacitance, pF	<0.12
Warm up time, s, at most	90
Output power, Va = 2.5KV, Ia = 700mA, wavelength 60 cm, W:	>800
Output power, Va = 2.2KV, Ia = 800mA, wavelength 30 cm, W:	>350
Designed Tube Life (hours)	>500

ELECTRICAL PARAMETER LIMITS
Heater voltage, V	11.9-13.3
Heater current, A	2.65-3.25
Mutual conductance (Va = 2KV, Ia = 250mA, change in Vg = 1V), mA/V, at least	25-40
Operating point (negative Vg with Va = 2KV, Ia = 250mA), V	6-12
input capacitance, pF	18-24
output capacitance, pF	3.8-5
Maximum CW Anode voltage (Va), KV:	3
Maximum Instantaneous value Anode voltage (Va), KV:	6
Instantaneous value Grid voltage (Vg), V	-400 to +120
Maximum CW Cathode current (Ic), A	1.4
Anode Dissipation, air cooling W:	1.5x103
Anode Dissipation, water cooling W:	2.0x103
Grid Dissipation, W:	26
Temperature at anode lead, °C	200
Temperature at cathode and grid leads, °C	120
Wavelength,cm	28-100

Averaged Anode and Grid-Anode Characteristic Curves: Uf = 12.6V _____ anode; _ _ _ grid-anode

Characteristic Anode Voltage Curves: Output Power vs Anode Current Uf = 12.6V; Wavelength = 30cm

Characteristic Anode Voltage Curves: Output Power vs Anode Current Uf = 12.6V; Wavelength = 60cm

Internet unlimited murah dengan handphone CDMA

!!! IMPORTANT (PENTING) : Applicable for CDMA hand phone with built-in modem only (hanya berlaku untuk handphone CDMA yang memilik modem didalamnya)...!!!

The list of CDMA handphone with builtin modem (daftar handphone CDMA dengan kemampuan modem) :

• Nokia 6585
• Nokia 6265 - recomended
  
• Nokia 3115 - recomended
  
• etc - please refer to hand phone manual for more information

The list of CDMA provider whose unlimited internet services :

• Indosat Starone (45 ribu per bulan)
  
• Telkom Flexy (50 ribu per bulan)
  
• Smart (50 ribu per bulan)

STEP 1 : Instalasi kabel dan modem driver

1. Lengkapi handphone CDMA dengan kabel data yang sesuai, pilih yang mempunyai direct USB connection seperti Nokia 3155
   
2. Pasang/ install modem dan USB cable driver - biasa-nya disertakan pada saat membeli kabel data tersebut atau bisa diperoleh dari internet (cari lewat google).
3. Bila instalasi modem berhasil, akan ada windows notification yang menyatakan bahwa handphone CDMA kita sudah terdeteksi dan siap digunakan.
4. Untuk testing handphone modem bisa dilakukan dengan mencoba bikin koneksi :dial up" dan pilih handphone modem, lalu isi dial number #777 dan coba dial, bila bekerja akan terlihat urutan : dial .....connected .....user dan password verifikasi ... dan dalam beberapa detik akan..disconnected.. karena kita belum ter-register.

STEP 2: Registrasi layanan internet

1. misalkan kita mempunyai nomor flexi dan akan menggunakan layanan internet harian (Rp 3000 per hari dengan otomatis diperpanjang).
   
2. kirim SMS ke nomor 2505 dengan isi pesan REG HARIAN
3. Setelah mendapat balasan, kita akan mendapat User, password yang harus diisikan pada saat dial di STEP 1 diatas.
   
4. Bila proses login berhasil, berari sudah tersambung ke internet, dan bisa mulai browsing dengan internet browsing yang tersedia seperti IE, Firefox, etc.
5. Untuk lebih detail paket inernet yang ditawarkan operator lain, silakan menghubungi customer service operator tersebut.

Blogger Buzz: Blogger integrates with Amazon Associates

Blogger Buzz: Blogger integrates with Amazon Associates

KENWOOD TS-590S, HF + 50MHz All Mode Transceiver

Coming soon : (ref. to. www.kenwood.net)
Featuring a 32-bit floating-point DSP, the TS-590S will offer advanced receiver performance and an extensive range of features that make it ideal for beginner and seasoned DX’er alike. The radio’s exceptional ease of operation, true to the Kenwood tradition, will be especially welcome for contest and mobile applications.

The Kenwood “TS-590″ utilizes Kenwood’s proven 32 bit IF DP technology – Features selectable Roofing filters at 2.8 kHz, and 500 Hz on 1st IF – including down-conversion wtih the 1st IF at 11 MHz (like TenTec, Elecraft and Vertex Standard Yesu in the FTdx-5000 series), USB port, HF and 6M Antenna Jacks, Dual VFO Display, Automatic Tuner, etc. -

Frequency Range :
TX : 0.5-30 MHz / 50-54 MHz
Rx : 10 - 160 m + WARC 50 - 54 MHz

Modulations
RX : AM / FM / CW / USB / LSB / FSK
TX : AM / FM / CW / USB / LSB / FSK

ALINCO DR 610 TQ , 144/430 MHz Dual Band Transceiver

General :

• Estimated price : Rp 1.750.000, - (USD 175)
• Condition : All components are original as per manufacture specification.
• Manufacture : 2005
  

Personal review :

• True dual band (dual display, dual receiver/transmitter)
• Full duplex with cross band capability.
• Frequency range RX 118 ~ 174 MHz, 420 ~ 470 MHz, Air band receiver
  
• Frequency range TX 135 ~ 174 MHz, 420 ~ 470 MHz
• Power Output : 144 / 430 MHz : Hi 50/35, Mid 10/10, Lo 5/5 Watt
  
• Bandscope capability up to 11 channel frequency
  
• Tone Squelch ( for DCS required additional optional board)