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Best Raspberry Pi 2 LCD 3.5inch TFT Touchscreen
Package/Board Raspberry Pi 4 Model B - 1GB/2GB/4GB/8GB
Explanation :
- You can choose board only or board + basic package
- All boards are original from lement14/RS/distributor , Made in the UK
https://www.raspberrypi.com/products/raspberry-pi-4-model-b/
- All power supplies included are original raspberry 5v/3a
- The SD card included in the basic package is class10
How to buy =
1. Board only, its contents:
- Raspberry Pi 4 Model B - according to your choice
2. Basic Kit Package, its contents:
- Raspberry Pi 4 Model B - according to your choice
- Power supply (Original Raspberry) 5v/3a
- SD Card class 10 - 16GB
- Cooling Fan + BlackCase
- Mini HDMI to HDMI 1.5m . cable
Best GPS Antenna GNSS GLONASS Antenna Support Ublox Neo-6M 7M 8M Simcom
Weight: 167 Gram, Category: GPS & Sport Tracker,
GPS Antenna for Arduino GPS Module such as Ublox Neo-6M / Neo-7M / Neo-8M/8N . type
Suitable for other brands such as Simcom
Can be used for motorcycle or car GPS with the same type of antenna
Port type: ipx/ipex connector
cable length: -+ 4cm
antenna size:
front 20*20mm
rear 19*19mm
PCB 23*23mm
Best Broadcast Fm Band Stop Reject Filter 88 -08 Mhz For Receivers Sdr
Blocks the broadcast FM band between 88 – 108 MHz with over 50dB of attenuation. Designed for RX use only.
Insertion loss is less than 0.5 dB between 0 – 1 GHz, and mostly less than 1.5 dB between 1 – 3 GHz.
Designed for SDR and radio scanner users. TV installers this is probably not the right product for you.
TV installers please read the description carefully to avoid disappointment.
Uses SMA female connectors. Comes with a free SMA male to SMA male adapter.
Note:
RX filter only. Designed for SDR users, but might also be useful for TV users struggling with FM interference.
But TV users please carefully check the spectrum analyzer graphs and 3dB roll off points to ensure that it will not block a TV signal of interest. e.g.
Best DIY "FM TRAP" or 88-108 MHz Band STOP filter
DIY "FM TRAP" or 88-108 MHz Band STOP filter - Among the few "blockers" the most called are the broadcast WFM transmitters. Simple way to solve the problem is to filter the received signals using the "FM TRAP". So called "FM TRAP" is nothing more than a simple Band stop filter for the frequency range of 88-108Mhz. They became really available and so cheap this days that making them at home is more time consuming then money saving.