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A simple Arduino based frequency counter with S-meter
A simple Arduino based frequency counter with S-meter
A simple Arduino based frequency counter with S-meter for radio receivers or transmiters. F-max - 8 mHz.
$5.00  Inc Tax
antenna analyser with graphic colour display
Compact antenna analyser with graphic colour display for 1-30 mHz
A simple antenna analyzer is a helpful gadget which will tell us about the frequencies to which a piece of wire will resonate on. This is very useful in conjunction with a simple tuner to adjust the antenna for an optimum VSWR (voltage standing waves ratio). Usually, a good commercial antenna analyzer is an expensive device which we use once in a while. Here is a simple project which will give a rough estimation of VSWR and resonant frequencies of a random piece of wires, antennas and lc networks.
$20.00  Inc Tax
GPS mini speedometer
GPS Speedometer Gauge works with GPS module NEO-.... and so on.
$10.00  Inc Tax
Automatic SWR meter with only 2 dig 7-seg display
ID Name Designator Footprint Quantity
1 0.1u C1,C2,C4 RAD-0.1 3
2 0.01u C3 RAD-0.1 1
3 47u C5 CAP-D3.0×F1.5 1
4 5V5 D1,D2 DIODE-ZENER 2
5 HDR-M-2.54_1x3 J1 HDR-M-2.54_1X3 1
6 HDR-M-2.54_1x2 J2 HDR-M-2.54_1X2 1
7 470 R1,R2,R3,R4,R5,R6,R7,R8,R9,R10,R11,R12,R13,R14,R15 R_AXIAL-0.3 15
8 10k R16 R_AXIAL-0.3 1
9 5.1k R17,R20 R_AXIAL-0.3 2
10 330 R18,R19 R_AXIAL-0.3 2
11 ATMEGA8A-PU U1 DIP-28_L34.6-W7.3-P2.54-LS10.2-BL 1
12 LED 7seg display U3 KINGBRIGHT DA56-11GWA 1
13 MICRO 4P DIP USB1 MINI-USB-SMD_MICRO-4P-DIP 1
$10.00  Inc Tax
SSB direct convetion tranceiver
Direct convertion tranceiver for 160m band
Direct convertion tranceiver for 160m band SSB. Out power 2W.
$50.00  Inc Tax
Direct convertation CW QRP Tranceiver kits
CW QRP Tranceiver kits
CW QRP Tranceiver With Arduino Nano si5351 based synthizer. Direct convertation. 7 mhz. PCB Relay Resistos Condensators Transistors Display Arduino Nano or clone No case Power supply or battery needed (12-15V, 1A)
$20.00  Inc Tax
SWR-meter's kit
Short Waves SWR and Power Watt Meter/ 1.8MHz-50MHz 0.5W-120W/
$10.00  Inc Tax
Si5351 based synthesizer with S-meter
Multiband (1-30 mhz) Si5351 based synth with S-meter. Usable for superheteodyne (you can change IF in the sketch) or direct convertion receveirs. Signal generator and another purpose.
$15.00  Inc Tax
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