Capacitor Lot
What comes into your mind when you hear the words Ham Radio? Morse code, antennas and old school communication? For sure its not old school communication, at least not anymore! Lately, a new technology called SDR, “Software Defined Radio” is the rising star and will change Ham Radio fundamentally during the upcoming years.
In principal, a big part of the radio (that’s a box containing a lot if capacitors, coils, transistors..etc) is replaced partially by our computers which allow us to flexible change the functionality without touching the soldering iron.
Three basic components
When talking about radios (or any communication device) we can break it down into three major components:
1. The RF Component
2. The Signal Processing Component
3. User Interface
The RF component transforms the high frequency signals, the signals which are received through your antenna into a “processing ready” format (and vice versa). The Signal Processing component will shape the signal as you want to have it, for example the demodulation of a filtered Morse code signal which you will then hear on your headphones. The third component is the User Interface – these are the knobs, the displays and the touch screens where you control the radio from.
SDR vs. the classic radio
Understanding the three fundamental concepts we can start to discover now the huge advantages of a SDR, Software defined radio. While in classic radios, all three components where combined into one box, SDR allows us to use them independent and define them flexible. There is no requirement anymore that the RF component has to be in the same geographical location as the User.
Modern technologies allow us to operate a radio from anywhere in the world. Of course, the merit here goes also to the fast Internet who is one of the enablers of this technology.
Discover a new radio experience
A good example is the WebSDR receiver, located at the Dutch university of Twente. On their webpage, more than 100 users can listens simultaneously to a several hundred kHz broad spectrum of selected ham bands. This unique application is just an outlook to what kind of applications will be possible in the future with SDR.
While the RF components are already quite mature, the majority of new applications will be seen in the Signal Processing and the User Interface component areas. Its definitely an exciting future and you should make sure to be a part of it!
by Tobias, DH1TW
http://www.dh1tw.de
Do you want to learn more about SDR? Are you eager to understand to full range of this new technology?
Learn from Tobias, BSc and enthusiastic Ham who has dedicated himself to make SDR more understandable and promote it within and beyond the Ham-sphere. Join him – and visit his SDR website!
Marine Products – KRANKING ULTRA CAPACITORS
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TFMFO-0K90-1208BMD CAPACITORS Plastic dielectric LOT $4,000.00 |
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LOT 21k NICHICON VX(M) 100uF 63V Electrolytic Capacitor $1,799.99 |
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T322B335M025AS KEMET CAPACITOR LOT OF 4000 ON ONE REEL NEW PARTS $1,675.00 |
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T398A105M025AS KEMET CAPACITOR LOT OF 3595 ON ONE REEL NEW PARTS $1,295.00 |
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KEMET T340B155M035AS7301 Capacitor 1533 pc Lot – NEW $1,100.00 |
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LOT OF 449 Murata p/n RPER72A105K6B1F03B Factory Sealed $1,050.66 |
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500X Mustard BIANCHI (Philips-Spain) 0.047uF 1000V capacitors LOT for Marshall $980.00 |
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AVX CK06BX105K, 1.0uF, ±10%, 50V, capacitors, lot/1000 $999.95 |
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Lot of Panasonic Digi-Key Capacitors Over 125 Pieces $899.10 |
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Lot of 5650 NOVACAP 1210Z334Z250NTM 330nF Capacitor $904.00 |
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Panasonic Capacitor P/N EEVFC1H221P LOT of 6990 Pieces $838.80 |
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Lot of 10000 ECEV1CA220SR 22UF,16V,20%,SMT CAPACITOR $800.00 |
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Fixed Electrolytic Capacitor, Part Number: CE71C102P- LOT OF (10) TEN $795.00 |
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THQM2016502 MIL Spec. Hybrid Capacitor (lot of 25) $750.00 |
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7500 x NEC SK-40A SIL PAD FOR TO-3 INSULATOR NEW LOT $750.00 |
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Lot 295 Erie feedthru capacitor type 2504 – 00 $720.00 |
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Lot 990pcs KEMET 0.255uF 275vAC N46KN3255ZA00J Capcitor $690.00 |
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Stanley garage door opener Capacitor 53 – 64 Mfd 220V 24858 LOT 100 pcs. $700.00 |
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Kemet Tantalum capacitors 6.8uF approx lot of 2870 $659.99 |
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lot of 2 Comet CV05C-650N/5V ariable Vacuum Capacitor 8-650 pF 5KV/3KV $539.99 |
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T322B106M010AS KEMET CAPACITOR LOT OF 1861 ON ONE REEL NEW PARTS $595.00 |
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LARGE LOT OF ViNTAGE CAPACiTOR/S **175** UNiTS LARGE/SMALL CORNELL MALLORY ECT $499.95 |
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LOT OF 14 NISSHIN SQ23150NF CAPACITOR NISSHIN SQ2315 LEBLOND BARON 25 $571.99 |
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100 UCC 80v 15000uf Snap-in Capacitors one LOT $545.00 |
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LOT Capacitor Ceramic Disc CDM CM RMC SEE PHOTOS $540.80 |
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LOT OF 8000 SYFER 8121M0500334MZ 50V 330uF CAPACITORS $500.00 |
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Lot 143 pcs CEHFQ 560uf 50V Electrolytic Capacitor 90V0 $499.00 |
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LOT OF 5000 L.C.C. CONTROLE CAPACITORS EC04CE0820KHB $480.00 |
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Lot 990pcs KEMET 0.68uF 250vDC N75IN3680ZA00M Capcitors $490.00 |
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2K LOT AVX/KYOCERA Multilayer Ceramic Capacitors SMD 500V 33pF 5% AQ137A330JA1ME $499.00 |
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C323C224K5R5CA7301 / Kemet / .220uf 50V Ceramic Cap / Lot of 1,500+ pcs (Reel) $500.00 |
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MOTOROLA 2N6124 POWER TRANSISTOR NOS PLE549 Lot of 500! $499.99 |
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0,22uF 1000V PIO Capacitors K40Y-9 K40U-9 Lot of 350 $350.00 |
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LOT OF 10000 SYFER 8111M1003P90DC 100V 3.9uF CAPACITORS $450.00 |
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LOT OF 2000 GLORIA 50V 22uF CAPACITORS $450.00 |
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LOT OF 2000 GLORIA 63V 68uF CAPACITORS $450.00 |
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100LOT 50 MFD 440v Oval AC Electric Motor Run Capacitor HVAC 440 vac volts 50 uf $449.13 |
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100 LOT 50 MFD uf 370v Oval AC Electric Motor Run Capacitor 370 vac volts 50 uf $449.00 |
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LOT OF 10 NISSHIN SQ23150NF CAPACITOR SQ23150NF MATSUURA MC-500V P.3 $439.99 |
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LOT OF 10 NISSHIN SQ23150NF SQ2315ONF CAPACITOR MATSUURA MC500V2 CNC $439.99 |
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LOT OF 10 NISSHIN SQ23150NF SQ2315ONF CAPACITOR MATSUURA MC500V2 CNC $439.99 |
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LOT OF 480 NEW EPCOS UPW1 207059 1108058405 CAPACITOR 0.1UF $400.00 |
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LOT OF 3000 L.C.C. COMPOSANTS PASSIFS CAPACITORS EC04CE0181KHB $399.00 |
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LOT OF 50 CAPACITOR * 501D687M025PR (MFR SPRAGUE) $400.00 |
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Mallory 1900uF / 450VDC Aluminum Electrolytic Capacitors – Lot of 8 pcs. $400.00 |
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Lot of 16 Aerovox 4400 uf Capacitors # 120-111-010 $399.00 |
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Mallory 400uF / 450VDC Electrolytic Capacitors – Lot of 8 Pcs. $400.00 |
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AVX * TPSE227M016R0100 TANTALUM CAPACITORS *LOT OF 400* $400.00 |
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60 LOT FREE SHIPPING 50 uf mfd 370v AC Motor Run Capacitor 370 volt v vac HVAC $404.17 |
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LOT OF 400 GLORIA 350V 22uF CAPACITORS $400.00 |
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C1206C103K5RAC7210 KEMET 1206 SM Capacitor LOT OF 10,000 PIECES (MB) $400.00 |
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C1206C104K5RAC7210 KEMET 1206 SM Capacitor LOT OF 10,000 PIECES (MB) $400.00 |
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darlington transistor approx lot of 228 $399.99 |
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*LOT 10* PANASONIC Fixed Aluminum Electrolytic Capacitor 125 each PCE3485tr-ND $399.00 |
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LOT OF 3000 L.C.C. CONTROLE CAPACITORS EC04ZE0562KHB $370.00 |
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KEMET Part# T340C685M035AS7301 Capacitor 371 PCS Lot $367.29 |
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LOT OF 3000 GLORIA 35V 68uF CAPACITORS $350.00 |
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LOT OF 4000 SYFER 8111M0500183JX 50V 18uF CAPACITORS $350.00 |
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LOT OF 365 GLORIA 100V 100uF CAPACITORS $365.00 |
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LOT OF 3627 CAPACITORS DIFFERENT CAPACITANCE & VOLTAGE $350.00 |