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Zastone D9000 Radio Transceiver 512 Channels Ham 50W 136-174MHz 400-520MHz Car Walkie Talkie Mobile
US$329.99 US$340.99

Q: ¿Puede funcionar con el panel frontal separado del cuerpo? No veo el cable que une el frontal con el cuerpo.

Asked by alfelipe on 2019-01-18 02:35:37

BG561349183 sim

2022-09-23 05:21:52 Helpful (0)
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Answers (2)
ESCAM WNK404 4CH 1080P Outdoor IR Video Wireless Surveillance Security IP Camera CCTV NVR System Kit
US$197.04 US$211.99

Q: Can the video be viewed through the internet across an inetrface web?

Asked by alfelipe on 2019-01-19 06:08:39

phantomas Yesit can be viewed using internet Explorer as browser.Also you can see video through the mobile app.

2022-03-04 07:49:28 Helpful (0)
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Answers (2)
alfelipe 19/02/2021
I have bought 2 units of 5 amps and another 2units of 20 amps. They have arrived sharing the same shipment and in appearance they are the same. The only way I can distinguish the units is by silk-screening the integrated circuit that incorporates the hall sensor. I have had to use a microscope because it is hardly visible. I hope I have no problems.
ACS712 Module 5A /20A / 30A Current Detection Board ACS712 Hall Current Sensor Module
US$6.35 US$8.99
6
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Comments (0)
45W 3-28MHz Shortwave Linear High Frequency Power Amplifier Radio Station Wireless Transmission
US$58.99 US$70.99

Q: Includes heat radiator? Is a kit or comes mounted?

Asked by alfelipe on 2021-09-30 03:14:40

BG175513211 montiert mit Kühlkörper

2021-10-05 01:14:34 Helpful (0)
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Answers (1)
alfelipe 08/04/2021
A good choice for charging 18650 batteries used in electronic projects. It disconnects when it reaches between 4.1 - 4.2 volts. I have ordered several units and they finish the charge when a few tenths of a volt exceed 4.1 V. The LEDs can be unsoldered and replaced by others placed in sight on the mounting housing. They can also be used to repair / replace the battery charge control part in small electrical appliances. Good product.
10pcs USB 3.7V 3.6V 4.2V 1A 18650 TP4056 Lithium Battery Charger Module Charging Board Li-ion Power Supply Board
US$6.52 US$11.99
0
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Comments (0)
alfelipe 08/04/2021
They look good quality, see if I can "resurrect" a soldering iron that looked good quality but Banggood only sells and does not answer my questions about replacement tips.
Handskit 15Pcs Pure Copper Solder Iron Tip 900M Tip for Soldering Rework Station Solder Tips
US$10.51 US$10.99
0
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Comments (0)
HFS-DC06 5.8GHz Microwave Radar Sensor Module DC 5V ISM Waveband Sensing 12M
US$8.79 US$15.99

Q: Do I understand that when viewed from above the plate, the potentiometer on the left acts on the time the output signal remains active and the one on the right on the sensitivity of the radar module? Is it a module that works by Doppler effect?

Asked by alfelipe on 2021-03-21 07:09:26

Crowbar8 Used for time and distance adjustment.

2021-04-08 01:11:45 Helpful (0)
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Answers (1)
alfelipe 05/02/2021
The HackRF one worked perfectly and what was received agrees with what the seller advertised. I have tested it with SDRANGEL, HD-SDR and SATSAGEN. The discordant note was given by the TXCO who was coming in soldered as you can see in the two photographs, in an example of the traditional quality of products made in China. The way the TXCO was soldered onto its board made it impossible to install it in the HackRF because it collided with components and its bottom shorted to the top of the case. I had to solder it properly before installing it in place. An example of poor quality on a device over $ 100 in price. Fortunately everything worked fine after the repair.
HackRF One RTL SDR Software Defined Radio USB Platform Reception of Signals 1MHz to 6GHz Software Demo Board Kit Dongle Receiver with Antenna
US$189.99 US$225.99
1
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Comments (2)

alfelipe Sabessi se pueden conseguir puntas de repuesto?

Chrt 12/12/2020
La calidad del producto es excelente, alcanza la temperatura deseada en cuestión de segundos(como debe ser), además de que este no calienta el mango durante su uso. Las puntas de este se ven bastante bien y en uso conservan la adhesión al estaño en toda la superficie pre-preparada de la punta, después de ser usadas conservan el brillo. El cautín posee muy buena rigidez física (entre secciones, del cuerpo del cautín al cable o a la punta no se percibe endeble o que de lugar a vibraciones), su mango y cable se ven de buena calidad, el cable es grueso y resistente (un buen detalle dentro de la comodidad del uso en cuanto a que este no se degolle, o queme). Las instrucciones las considero un poco confusas pero nada grave.
Handskit 90W 927 LED Digital Soldering Iron Kit 110V/220V Adjust Temperature Electrical Soldering Iron 4 Wire Core Welding Tools
US$21.99 US$23.99
7
Comments (5)

alfelipe The problem was solved by me by correctly soldering the tcxo to the pcb. After checking that when putting the HackRf with the tcxo module installed in its box it could short-circuit with the upper part, then I had no choice but to solder it properly. It was clear to the naked eye that the tcxo had not been correctly inserted before being welded.

alfelipe 05/02/2021
The HackRF one worked perfectly and what was received agrees with what the seller advertised. I have tested it with SDRANGEL, HD-SDR and SATSAGEN. The discordant note was given by the TXCO who was coming in soldered as you can see in the two photographs, in an example of the traditional quality of products made in China. The way the TXCO was soldered onto its board made it impossible to install it in the HackRF because it collided with components and its bottom shorted to the top of the case. I had to solder it properly before installing it in place. An example of poor quality on a device over $ 100 in price. Fortunately everything worked fine after the repair.
HackRF One RTL SDR Software Defined Radio USB Platform Reception of Signals 1MHz to 6GHz Software Demo Board Kit Dongle Receiver with Antenna
US$189.99 US$225.99
1
Comments (2)

alfelipe@icycho Double colineal

alfelipe 28/12/2017
The first impression is its small size. The second impression is that this transceiver is really a Walkie-Talkie with a 20 Watt RF output. The power supply requeriments is 3 Amps at 13.4 Volts when full output in VHF.. The heatsink of the Power Amplifier Stage, located in the back part of the equipment, is cooled by a small fan that starts automatically when necessary. The equipment really complies with the functionality promised by Banggood. When using an outdoor antenna, its reception performance is better than a Walkie-Talkie. highly recommended.
BaoJie BJ-218 25W Mobile Radio VHF UHF 136-174 400-470MHz Ham Radio Car Walkie Talkie Long Range
US$69.99 US$99.99
17
Comments (5)
alfelipe 09/05/2018
This module comes without the output terminal. I am using it in a project that integrates an AD9851 DDS Signal Generator Module, controlled by an Arduino ATMega 2560, with an experimental software to develop a very low-cost spectrum analyzer.
AD8310 0.1-440MHz High-speed H-frequency RF Logarithmic Detector Power Meter For Amplifier
US$13.19 US$15.54
2
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Comments (0)
alfelipe 02/02/2021
Good quality for very little price, but the coaxial cable solders were faulty. It shows that they do not test the article once it is built, I had to solder again and move a 100 Ohm resistance in place.
RF SWR Bridge 0.1-3000MHz Return Loss Bridge Reflection Bridge Antenna Analyzer VHF VSWR Return Loss
US$9.01 US$17.99
0
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Comments (0)
alfelipe 02/02/2021
Good price. Excellent low-noise fans.
Armor Aluminum Alloy Case Protective Shell Metal Enclosure with Dual Fan for Raspberry Pi 4 Model B Only
US$18.70 US$18.00
0
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alfelipe 02/02/2021
I have this soldering iron and it has excellent and reliable performance, it really is a great item, the only flaw is a more flexible silicone wire. I just have one problem, I use it extensively in my lab and already need to order replacement tips. Does Banngood supply replacement solder tips for this item?
Handskit 90W 927 LED Digital Soldering Iron Kit 110V/220V Adjust Temperature Electrical Soldering Iron 4 Wire Core Welding Tools
US$21.99 US$23.99
0
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Comments (0)
20pcs TP4056 5V 1A Lipo Battery Mini USB Charging Board Charger Module
US$14.29 US$15.59

Q: Is it suitable for 18650 batteries?

Asked by alfelipe on 2021-01-17 04:32:25

nickmallon yes,perfect for 18650 batteries ;-)

2021-01-24 04:53:22 Helpful (0)
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Answers (1)
alfelipe 31/01/2019
This kit comes without any assembly instructions. It also has no instructions for use. No doubt I spent a fun time trying to mount it, until I got to the capacitors: the values of the resistors are printed on the board, but not that of the capacitors. I am absolutely convinced that it is an excellent and precise product, I can confirm it as soon as someone tells me in which position each capacitor goes and what each button is for. I have put the highest score because if I do not Banggood does not publish my review.
DIY High Precision Digital Inductance Meter Capacitance Meter Frequency Meter Kit
US$11.59 US$16.99
1
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Comments (1)

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