tinySA RF spectrum analyzer

TinySA is an amazing gizmo! I have already posted some video link on TinySA and here is some mode material on it. RF testing is getting quite popular these days, with many devices featuring wireless capabilities. However, RF test devices are quite expensive, or at least have been, as on few recent years many affordable

Cable tester NF-8209 tested

NOYAFA NF-8209 Network Cable Tester is used to measure cable continuity. It enables the measurement of connection errors in UTP / STP twisted pairs. The device is manufactured by SHENZHEN NOYAFA TECHNOLOGY CO., LTD and sold with several different brand names. NF-8209 Main features´╝Ü 1. Two scan modes selectable: AC filter & Non AC filter.

Hot air soldering videos 2

SparkFun Hot Air Rework with David Stillman PACE Inc. Soldering SMD fine pitch component (8a) Hot Air Mini Wave Soldering How to solder a 1206 SMD resistor with solder paste (caution, very delicate) Surface Mount (SMD) Hot Air Soldering Soldering an xDrip PCB, Part 1 Easy way to Solder Surface Mount Parts! – How I

Hot air soldering videos

Miniature Hot Air Gun for SMT Rework from Banggood Easy way to Solder Surface Mount Parts! – How I do it Degree LCD Adjustable Electronic Heat Hot Air Gun IC SMD BGA Desoldering Station with 4 Nozzles HD DX: GONGJUE 8018LCD 0.8″ LCD Screen Portable Temperature-controlled Hot Air Gun Quickly Pulling out SMD with Hot

Desoldering iron

In electronics, desoldering is the removal of solder and components from a circuit board for troubleshooting, repair, replacement, and salvage. There are many techniques how to desolder. Check out videos How to Desolder Through-Hole Parts, Why Some Joints are Difficult and Desoldering Components – Tips and Tricks. Desoldering tools and materials include the following: Solder

Calibration of multi-meters

I saw this question posted to ELECTRONICS HOBBY CIRCUITS IN FACEBOOK group: “can you tell me what is the meaning of calibration date of a multimeter and does it effect the work of a multimeter if it expires the calibration date?” The answer to this is: As all circuits will drift with time, the DMM

S-A-A-2 NanoVNA V2

A Vector Network Analyzer (VNA) is an extremely useful tool for radio hobbyists as it allows you to measure and tune antennas and filters, as well as measure cables. The most affordable such instrument for some time has been NanoVNA. NanoVNA V2 Vector Network Analyzer can be viewed as next updated version of NanoVNA. The

DT830 multimeters

Saw in Facebook discussion Another meter is fried again today!!! I have six meters blown in 2 years, while reading high voltage AC. I guess I will find a better alternative for such reading. Is there a way of fixing spoilt meters!?. We are talking about this kind of DT830 type multimeters: My answer: