Antenna Handbook | Best Antennas, Free Calculators & Top Antenna Deals

signal booster antenna indoor omni antenna repeater mushroom signal 3g 4g - signal booster1

 




## THIS ANTENNA IS INTENDED TO BE USED ON A REPEATER BOOSTER Signal Amplifier Repeater, this antenna CANNOT WORK/STAND ALONE, MUST WITH A REPEATER SIGNAL BOOSTER ##

Product excellence :
1. The indoor signal spreads more evenly in all directions.
2. This antenna is of Grade A++ quality, unlike other antennas with cheap materials and finishing.
Specifications:
- Antenna Type: OMNI INDOOR
- Gain Average : 3dB/5dBi
- Frequency: 800Mhz / 900Mhz / 1800Mhz / 2100Mhz, 2400Mhz, 2700Mhz. Wideband 800-2700Mhz
- Network Support: 2G, 3G, HSDPA, 4G LTE, 4G DCS
- Frequency Range (MHz): 800~2700MHz
- Polarization Type: Horizontal & Vertical
- Weight: 300gram
- Connector Type: N Female

signal booster variations:
1. Signal booster 9182A
- Uplink output power = 23dBm
- Uplink output gain > 63dB
- Downlink output power = 30dBm
- Down to output gain = 70dB
- Noise factor < 6dB
- Fluctuation Band < 6dB
- VSWR < 1.8
- TOI < -45dBc/3KhZ
- Impedance = 50 Ohms
- Connector = N-type connector
- Size = 112 x 140 x 32
- Coverage = 500m2
- Frequency range = uplink 890-915 Mhz, 1920-1980 Mhz. Downlink 935-960 Mhz, 2110-2170 Mhz

2. GSM ST-980 . signal booster
- Uplink output power = 26dBm
- Uplink output gain > 66dB
- Downlink output power = 33dBm
- Down to output gain = 75dB
- Noise factor < 6dB
- Fluctuation Band < 6dB
- VSWR < 1.8
- TOI < -45dBc/3KhZ
- Impedance = 50 Ohms
- Connector = N-type female connector
- Size = 112 x 140 x 32
- Coverage = 1000m2
- weight = 950gr
- Frequency range = uplink 890-915 Mhz, 935-960 Mhz. Downlink 935-960 Mhz, 2110-2170 Mhz
3. GSM ST-9182B signal booster
- Uplink output power = 23dBm
- Uplink output gain > 63dB
- Downlink output power = 30dBm
- Down to output gain = 70dB
- Noise factor < 6dB
- Fluctuation Band < 6dB
- VSWR < 1.8
- TOI < -45dBc/3Kh
- Impedance = 50 Ohms
- Connector = N-type female connector
- Size = 112 x 140 x 32
- Coverage = 500m2
- weight = 1.950gr
- Frequency range = uplink 890-915 Mhz, 935-960 Mhz. Downlink 935-960

Log Periodic Outdoor Antenna / Periodic Antenna

 

Log Periodic Outdoor Antenna / Periodic AntennaLog Periodic Antenna is widely used as a singal amplifier outdoor antenna because this type of antenna has a wide frequency limit (multi-frequency).
Unlike ordinary yagi antennas which can only work on a single frequency.
This antenna has a wide frequency (Wide Band) 800 MHz to 2600 Mhz, especially on LTE / 4G, 3G / 2G, and CDMA networks.

But traditional Yagi Antenna if for GSM only GSM In certain areas conditions can improve coverage characteristics and maximize modem connections. This Log Periodic Antenna is designed to be waterproof  with UV protection so it is very suitable for outdoor weather conditions.

Bracket that can be adjusted tilt angle, Mounting / Pipe clamps for poles diameter 3.5cm to 5cm, Installation guide and original modem pigtail 
(according to modem type). Pigtail modem can be replaced, you can buy it separately when you have a modem with another type.

Features:
- Lightweight made of Waterproof and UV Protection
- Ultra Wide-Band Coverage 806 MHz to 2700 MHz
- Antenna length 29 cm
- 8.5/9 dBi real gain

Package Contents:
- Yagi Log Periodic Antenna Unit
- N type connector cable(30 cm)
- 1 piece L bracket
-2 pieces of fixing brackets

Best HVAC Software Solution Professional 8.4.2 FULL VERSION for small business






Best HVAC Software  Solution Professional 8.4.2 FULL VERSION for small business - HVAC software solutions are one of the rarest software applications in the field of HVAC systems and systems design, or heating, cooling, air conditioning systems, and residential and commercial facilities. Today, in the facility industry, various advances have been made, and different technologies are being developed based on new needs and expectations. Utilities and building engineers have also provided new solutions and a lot of research to suit this need. 

In the same way, many specialized software such as HVAC Solutions can be very promising.
Software company HVAC Solutions is one of the leading providers of specialized software in the facility area and has been specializing in software solutions 
in this branch for a long time. With this efficient program, you can easily design various air conditioning systems by dragging super-smart objects on the design 
screen. You can also easily install hydronic systems, such as floor heating and other control systems, with various features.

This program has all the necessary components for transmission line piping and ducting and has very high flexibility in this direction. The HVAC solution allows 
you to select custom build components and components that are most consistent with your project. With the help of this program, you can design various equipment
and control systems, estimate the required materials and obtain a schematic map in dxf format. The program in design and analysis designing cooling and heating 
systems and air conditioning systems is one of the best, and there are few rivals in the field.

Requirement :
Windows XP/7/8.1/10

Best HVAC Software Solution Professional 2022

 






Best HVAC Software - HVAC software Solution Professional 2021.6.11
It is a single environment for Vibro-acoustic analysis and design. This allows engineers to perform accurate predictive noise and vibration design assessments 
early in the design cycle to meet product performance goals. Users can meet aggressive design timelines, ensuring engineering decisions when they benefit the most  from the demands of a multi-disciplinary development environment.
The program is accessed from a standard user interface covering the entire frequency spectrum through a series of proven and seamlessly combined modeling methods. 
With this tool, users achieve optimal design productivity without implementing different solutions that require training for user interfaces and data exchange 
between environments.
It uses a proprietary technology that ensures a clear interaction of the finite element method (FEM) with the boundary element method (BEM) and statistical analysis 
method (SEA) in one analysis. It is the only solution that covers the full spectrum of vibroacoustic analysis in a friendly environment.

Features of ESI VA ONE:
- Meet operating targets & achieve project milestones with accurate noise prediction models early in the design process
- Integrate noise prediction tools into your existing design environment
- Quickly assess prototype designs with quick model creation
- Access an optimal set of fast methods that combine seamlessly to minimize simulation time
- Quickly evaluate your design and test countermeasures to meet attribute targets
- Achieve design goals for interior and exterior noise in one environment
- Eliminate expensive final stage modifications
System Requirements
Windows 7/8.1/10

Web Application Online Helpdesk Customer Support

 


Web Application Online Helpdesk Customer Support - Web-based application that functions as a support / helpdesk application to manage tickets & customer care communication to registered clients. 

Also provides information media for clients in terms of knowledge based, FAQ etc
Application features:

1. Admin web app settings

- set the theme / appearance (logo, content, captcha etc.)
- Set security, access restrictions (captcha, block user, IP, email spam, site/ddos security, file uploads), API (external access connection) ification.
- Set the type & format of the ticket, from client & public.
- Set client payment patterns
- Multilingual application (English etc.)

2. User access settings

- Manage user data (admin, supervisor, agent & client access)

3. Set menu access rights & user roles

4. Access & website settings for clients & guests

- Public website content design (live editor)
- Knowledge-based access connected to ticketing
- User feedback & social media integration
- Proactive website content search feature

5. Manage Ticket Data (reports, questions, complaints, etc.)

- Manage ticket data by client & guest (organized by category, priority & ease of entry)

6. Monitoring ticket status & ticket feedback by user (by active status, assignment, payment status, etc.)

7. Manage Information Content

- Setting knowledge based data in article format
- Filling in announcements for internal & external users
- Manage FAQ data (to be accessed on public website)
- Testimonial settings (to be accessed on public websites)

8. Data Communication

- Settings for sending information & notifications by email (templates available)
- Web chat (from client/public to admin user)
- Order Cans (draft message based on ticket and user information)
Product Contents:
- New 16gb Free Flashdisk containing a complete installation folder and supporting software.
- Free Support install (on-call) we can guide via remote PC & maintenance problem.

PLC MODBUS SCADA TRAINER SET

 

DESCRIPTION PLC MODBUS SCADA TRAINER SET
SCADA stands for Supervisory Control and Data Acquisition. SCADA is a system that collects information or data from the field and then sends it to a central 
computer that will manage and control the data.
Based on a programmable Logic Controller (PLC) in a more complex industrial world with lots of I/O applied for monitoring industrial systems through a PLC 
network using the Modbus protocol
The use of automation control with PLC SCADA makes prospective technicians and technicians start competing to be able to master this competency.
Mastery of PLC SCADA competencies will be faster when using practical compact media.
This SCADA Programable Logic Controller Trainer is designed in such a way that it is easy to use by prospective technicians and beginning technicians, 
both at the middle and higher levels.

LEARNING TOPIC

- Introduction of SCADA PLC Programmable Logic Controller components
- SCADA with Modbus protocol
- Modbus SCADA PLC Network Connection
- Modbus SCADA PLC Network Pictures
- Input Output and Sensor Circuit Modbus SCADA PLC
- Modbus SCADA PLC Programming
- Trainer Operation
- Trouble Shooting Series

TECHNICAL SPECIFICATIONS

- Unit 2 Pcs CPU 20 I/O
- Connection Cable PLC to PC RS
- 1 phase to 3 phase AC inverter module
- Unit module power supply 220 V, 24 VDC - 1.5 A
- Magnetic Contactor Module
- Push Button Module
- Pilot Lamp Module
- Buzzer Module 220 V
- Mode Selector Switch

COMPLETENESS

- 4x4 mm hollow iron rack and aluminum profile, 1100 mm high, 1000 mm long, 5 mm acrylic module material, A4 size
- Acrylic Cutting process & text design with Engrafing Laser Machine
- 20 Jack Banana Double + 20 Jack Banana Single
- Equipped with operating module,
- 1 phase power cable
- Banana double jumper cable

Relay 5V 1 Channel for Arduino Active Low In 5V Out 250VAC 30VDC 10A

 


Relay 5V 1 Channel for Arduino Active Low In 5V Out 250VAC 30VDC 10A
- This is a 5V 1-Channel Relay interface board. Can be used to control various electrical devices with large currents. Controlled directly by the microcontroller of your choice (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic.
Specification:
5V 1-Channel Relay interface board, sink current 15 mA - can be directly from the microcontroller pins;
Relay capacity, AC250V 10A ; DC30V 10A;
The standard TTL logic interface is directly controlled by the microcontroller (Arduino, 8051, AVR, PIC, DSP, ARM, ARM, MSP430, TTL logic)
Protection circuit (kickback current) is included - safe and ready to use
LED indicator to indicate the active channel
Active LOW - check https://streamable.com/3e16i
Buyer gets 1 1 channel relay module.

Pure Sine Inverter Driver Board Module EGS002 EG8010 IR2110 IR2113 pc



Pure Sine Inverter Driver Board Module EGS002 EG8010 IR2110 IR2113 pc - NEW EGS002 Pure sine wave inverter driver board EG8010 + EG2113 / IR2113 / GNVS2113 module, (NOT 2110, there are many 2110 / cheaper in the market)
EGS002 is a Sine Wave Generator Driver module to create a Sine Wave Inverter by adding Mosfet/IGBT.
Old:
EG2110 / IR2110 V-offset 500v
New:
EG2113 / IR2113 V-offset 600v

Pure Sine Wave 2000W 3000W 4000W Power Inverter Kit 12/24/36V to 220V

 





Pure Sine Wave 2000W 3000W 4000W Power Inverter Kit 12/24/36V to 220V - 
Power Inverter Kit Pure Sine Wave 600 - 1500 Watt + 180A Iron Core Ankle Transformer.
This Assembled Power Inverter Kit has 1 set with an Iron Core Ankle Transformer Pure Copper wire to be able to work to produce Pure Sine Wave electricity 
the same as Electric Waves from PLN so it is safe for all Electronic, Resistive and Inductive Equipment such as water pumps, washing machines , Fan, Blender, 
Electric drill, Refrigerator, Air conditioner, and more.
Description :
Input : 36V DC
Output : 220V AC +/-5%
Frequency : 50 Hz
Output Wave: Pure Sine Wave (Pure Sine Wave)
Static/No Load Power : 0.2A
NOTES:
36V battery VOLT, maximum power 1500W
This Inverter Kit need to connect to the transformer.
-36V battery, Use about 21V transformer (21V to 220V)
The suitable transformer for this Inverter kit is Zero / Ankle Transformer EGS002.
If there is damage, spare parts from this Pure Sine Power Inverter Kit are often found in Electronic Stores and can be repaired or contact us again for repair.

Electret microphone preamplifier module adjustable gain

 


Electret microphone preamplifier module adjustable gain - Cheer for your project. The fully assembled and tested circuit board has a soldered 20-20KHz electret microphone. 
The amplifier has excellent power supply noise suppression, so the amplifier does sound good.
This breakthrough is most suitable for projects that use FFT, such as voice converters, audio recording sampling, and audio responsive projects. 
We include a small trimmer potentiometer to adjust the gain. You can set the gain from 25 times to 125 times. Down to about 200mVpp (normally, about 6 inches away), 
ideal for connecting to something that requires "line level" input without clipping, or up to about 1Vpp, ideal for reading from microcontroller ADCs. 
The output is rail-to-rail, so if the sound is loud, the output can be up to 5Vpp
-Ground GND, VCC to 2.4-5VDC.
-For best performance, use the "quietest" power supply available (on Arduino, this will be a 3.3V power supply).
-Audio waveforms will be output from the OUT pin. The DC bias of the output is VCC/2, so when its
-Completely quiet, the voltage will stabilize to VCC / 2 volts (DC coupled). If you use audio equipment
-AC coupled audio is required, please place a 100uF capacitor between the output pin and input of the device. in case
-You want to connect to an audio amplifier with differential input or including decoupling capacitors,
-No upper limit of 100uF is required.
-The output pin is not used to drive speakers or anything, but the smallest in-ear headphones-you need
-If you want to connect the amplifier directly to the speakers, please use an audio amplifier (eg 3.7W stereo amplifier). What if you are
-Connect to microcontroller pin, no amplifier or decoupling capacitor required-Connect to OUT
-Connect directly to the ADC pin of the microcontroller.
-For projects with audio responsiveness, we recommend using the FFT driver library, which can take audio input and "convert" it to
-frequency.
The fixed gain is 20dB, which can support two power supply modes of 3.3v and 5v.

Z-80 Microprocessor Trainer (Microprocessor Training Kit)

 







Z-80 Microprocessor Trainer (Microprocessor Training Kit) - This product is a Z-80 microprocessor practicum tool equipped with an 8-bit LED output. 
Very suitable for students and students, and hobbyists
Always ask for stock conditions before ordering.
Specification:
CPU: Z80-CPU
RAM: 2 Kbyte and expandable up to 4 Kbyte (6116)
EPROM: 2 Kbyte
Display: 6 digit seven segment
Keyboard: 36 keys (19 function keys, 16 hexa digit keys and 1 reset key)
Krisbow aluminum suitcase packaging
Package contains:
Z80 Microprocessor Trainer
PIO LED Output Interface
AC to DC Power Supply 5V / 500mA
Practice guide and answer key (PDF file)

Complete Digital Stereo Mini FM Transmitter






Complete Digital Stereo Mini FM Transmitter - An FM transmitter with clear audio quality is not inferior to a million-priced transmitter with a range ranging from 2 to 5 kilometers depending on the height 
of the antenna. It is suitable for community radio, school radio, shop radio, or for broadcasting within the city, sub-district or village scope.
The advantage of this FM transmitter is that it is waterproof 24 hours non-stop every day, it is equipped with an internal power supply and a cooling fan in it. 
Digital channel display 87.5 - 108MHz there is an UP/DOWN button to adjust the empty channel in the respective area.
Features:
FM transmitter ready on air
Stereo audio input L/R
Digital PLL 87.5 - 108MHz
Mini compact design
Power output 5 watts
Internal power supply
Save electricity consumption only 36watt
Sales Package:
1x Stereo FM Transmitter
1x Cable 12 meters
1x Antenna dipole

HF Trasceiver Icom IC7300 New Ori 1 Year Service Warranty IC-7300 SSB



HF Trasceiver Icom IC7300 New Ori 1 Year Service Warranty IC-7300 SSB -

HF Trasceiver Icom IC7300
New ORI 1 year service guarantee
* Output power: 100W (25W AM)
* RX Frequencies : 0.030-74.800
* Receiver type: Direct sampling
SPECS
* Frequency coverage : 0.03074.800*
* Modes: SSB, CW, RTTY, AM, FM
* Number of channels : 101 (99 regular, 2 scan edges)
* Antenna connector: SO-239 (50)
* Power supply requirement : 13.8V DC 15%
* Power Consumption :
Tx: 21A (at 100W output power).
Rx: 0.9A typical (standby), 1.25A (Max audio).
* Operating temperature range: 10C to +60C; 14F to 140F
* Frequency stability : Less than 0.5ppm (10C to +60C; 14F to 140F)
* Frequency resolution: 1Hz
* Dimensions : 24094238mm; 9,453.79.37in
* Weight : 4.2kg; 9.26 lb (approximately)
* Transmitter output power: 100W on HF/50MHz, 50W on 70MHz
* Tuner matching SWR range : 3:1 full power, 10:1 emergency mode (50% power)
Equipment:
* IC-7300,
* HM-219,
* DC Cable
* Fuse
* Guarantee card
* Manuals.
DC Cable Ori 4 Pin

Arduino Nano 5V 16MHz Compatible Development Board ATmega328P

 






Arduino Nano 5V 16MHz Compatible Development Board ATmega328P - 

Based on Arduino Nano Development Board and layout. Reliable for projects that need low power consumption.


8 analog inputs: A0 ~ A7
14 Digital input/output: TX, RX, D2~D13
6 PWM ports: D3, D5, D6, D9, D10, D11
1 pair serial transceivers: RX & TX
Using Atmega328 AU
There is bootloader installed
Support USB download and Power
Support for external 5V ~ 12V DC power supply
Support power supply by 9V battery
Support ISP download

Notes:
There may be slight variations in components and layouts from each batch of shipments, but the functionality and pinout remain the same.

Smarthome, IoT, ESP32, alternative ESP8266, DIY, Atmel, sensor programming, automation, deep sleep, low current consumption, Atmel, ATmega328P, SMD

ESP-WROOM-32 Dual Core Development Module ESP32 WiFi Bluetooth ESP-32s

 




ESP-WROOM-32 Dual Core Development Module ESP32 WiFi Bluetooth ESP-32s

Quality Notes:
This is the Premium version of the ESP32 Board that still uses quality components, not the strip-down version of the board whose components are replaced 
to make it cheaper,
but at the expense of reliability.
1. Serial Chip: CP2102 (not CH9102)
2. Main Capacitor: Yellow Tantalum (not Black Tantalum)

ESP32 chip specifications:
+ Cores: Dual
+ Wi-Fi: 2.4 GHz up to 150 Mbits/s
+ Bluetooth: BLE and Legacy Bluetooth
+ It runs 32 bit programs.
+ Clock frequency: up to 240MHz
+ RAM: 512 kB
Peripherals:
+ Hall Effect Sensor
+ Temperature Sensor
+ Capacitive Touch
+ ADCs
+ DACs
+ UART
+ SPI
+ I2C
+ I2S (Integrated Inter-IC Sound)