This episode of the Radio Design 101 series focuses on RF mixers, and on frequency conversion schemes commonly used in wireless hardware. Starting with the basics, the process of up and down conversion is described and then demonstrated using a TinySA spectrum analyzer and a homebrew mixer built from an NE602 integrated circuit. Superheterodyne and direct conversion architectures are covered in some detail, and the video concludes with an examination of the dual conversion design used in modern spectrum analyzers. This is included in this Part 1 video. Part 2 of Episode 5 will cover some of the math behind mixing and discuss practical switching mixer circuits commonly used in radio hardware. As with other episodes in this series, this video is based on and supports a university senior design course in which students design, build, test, and document real-world hardware such as FM broadcast-band receivers and FSK digital comm links.
Baofeng UV-5R Two Way Radio Handheld Ham Radio Dual Band Walkie Talkie(2PACK, Black)
$38.19 (as of October 2, 2023 14:47 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)Frequency band: 144-148/420-450Mhz | VHF and UHF bands and channel name displayed | Up to 128 memory channels | Squelch adjustable in 9 levels. High/Low TX power selectable: Busy channel lock-out(BCLO),128 Channels 50 CTCSS and 104 CDCSS Dual-Band Di... read more
Baofeng UV-5R Two Way Radio Dual Band 144-148/420-450Mhz Walkie Talkie 1800mAh Li-ion Battery(Black)
32% OffFrequency Range: 144-148MHz, 420-450MHz. Please kindly know that UV-5R would not transmit without this frequency range. 128 Channels 50 CTCSS and 104 CDCSS Dual-Band Display, Dual Freq. Display, Dual-Standby, A/B band independent operation, High/Low ... read more
Apollo Name Shirt | Apollo T-Shirt
$19.99 (as of October 3, 2023 01:27 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)This Apollo Shirt / Design is the perfect Apparel Idea for anyone named Apollo. Personalized, Custom name shirt for men. Funny Apollo Name Definition TShirt Apparel. This Funny Apollo T-Shirt makes for a great birthday or christmas Apparel for anyone... read more
BaoFeng UV-5R 8W High Power Two Way Radio Portable Ham Radio Handheld with one More 3800mAh Battery,Speaker, Antenna, USB Program Cable and Earpiece
$39.99 (as of October 2, 2023 18:22 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)【8Watts High Power Radio】High/ Mid/Low Power,Dual band / Dual display / Dual standby,128 groups of storage channels,Compatible with other handheld walkie-talkies from Baofeng, such as BF-F8HP, UV-82, UV-S9 Plus,TP-8Plus, BF-H6 etc;50 CTCSS and 104 CD... read more
BaoFeng UV-5R 8W High Power Two Way Radio Ham Radio Dual Band Portable Radio Tri-Power Handheld Walkie Talkies with AR-771 Antenna
31% Off【1】This article is ideal for short-distance communication. It is simple, economical and practical. 【2】High/ Mid/Low Power ,Dual band / dual display / dual standby,AUTO Keypad Lock. 【3】 FCC Part 15 Part 97 Certified, FCC ID: 2AJGM-UV5R. 【4】1800mAh Bat... read more
Eton Adventure Series Odyssey- Multi-Powered All-Band Radio (AM/FM/NOAA/Shortwave) with Bluetooth, Solar Powered, Battery Powered, LED Flashlight, Phone Charger, Commitment to Preparedness
10% OffStay well-prepared for emergencies and disaster situations with the versatile All-Band AM/FM/SW/Weather band radio, offering a wide range of radio frequencies. Ensure continuous power in any circumstance through four reliable sources: a rechargeable ... read more
BaoFeng UV-5R 8W High Power Two Way Radio Ham Radio Dual Band Portable Radio Tri-Power Handheld Walkie Talkies with AR-771 Antenna
30% Off【1】This article is ideal for short-distance communication. It is simple, economical and practical. 【2】High/ Mid/Low Power ,Dual band / dual display / dual standby,AUTO Keypad Lock. 【3】 FCC Part 15 Part 97 Certified, FCC ID: 2AJGM-UV5R. 【4】1800mAh Bat... read more
Retevis RT22 Walkie Talkies, Mini 2 Way Radio Rechargeable, VOX Handsfree, Portable, Two-Way Radios Long Range with Earpiece, for Family Road Trip Camping Hiking Skiing(2 Pack, Black)
$39.99 (as of October 3, 2023 02:24 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)Small and lightweight; compared with most large and heavy walkie-talkies; RT22 adopts a lighter and thinner compact design; allowing you to carry it easily and enjoy more comfortable communication Loud and clear sound quality; the sound is loud and c... read more
Case of 10, Retevis Walkie Talkies Earpiece with Mic 2 Pin Acoustic Tube Headset Compatible with Baofeng UV-5R Retevis H-777 RT21 RT22 Arcshell AR-5 Two Way Radio
$49.99 (as of October 3, 2023 02:37 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)Kenwood 2 pin; not compatible with any Midland and Motorola walkie-talkies; compatible with Retevis H-777 RT21 RT22 RT68 RT18 RT19 RT27 RT-5R Baofeng UV-5R series BF-F8HP BF-888S Arcshell AR-5 Kenwood two way radio and more Hands free compatible with... read more
Falamiao 42V 2A Charger Replacement for Gotrax Electric Scooter 1 Prong with 5.5mm tip Universal Compatible with 36V Li-ion Battery Jetson Go Trax G2 G3 G4,Rival,XR Ultra/Elite,Apex
$15.99 (as of October 3, 2023 02:16 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)【Charger for 36V Battery】 Input: 100-240V 50/60Hz ; Output: 42V 2A . Connector Size: 5.5*2.1mm , 1-prong DC plug. Suitable for battery voltage of 36V and 1-prong. 【Universal Application】Compatible with JETSON GOTRAX GXL DLX, G2, G3, G4, Apex, Glider,... read more
AWELTEC Jumper Cables for car, UL-Listed 8 Gauge 12 Feet Heavy Duty Booster Cables with Carry Bag (8AWG x 12Ft)
31% OffAWELTEC UL-Listed Jumper Cables - 8 Gauge 12 Feet Automotive battery jumper cables for jump starting a dead or weak battery. High density copper clad aluminium make it has excellent conductivity. Perfect for most motorcycles, cars, SUVs. Travel Bag -... read more
Walkie Talkies for Adults Long Range-Wishouse Handheld 2 Way Radios Rechargeable,Hiking Accessories Camping Xmas Birthday Gift for Kids with Lamp,SOS Siren,NOAA Weather Alert,Easy to Use Black 3 Pack
37% OffLONG RANGE TRANSMISSION AND CRYSTL CLEAR SOUND — With upgraded custom helix gain antenna, super penetration, and lossless transmission technology. You can speak clearly and your kids can hear clearly within 1 mile in the yard or indoors. Longer range... read more
QIATOL Bolts and Nuts Kit, 12PCS Motorcycle Battery Bolts and Nuts, M6x16MM Motorcycle Battery Screw and Nut, Battery Terminal Bolts and Nuts Carbon Steel
$5.89 (as of October 3, 2023 02:16 GMT +00:00 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)Premium Material: Motorcycle Battery Bolts and Nuts are made of Carbon Steel, which are durable and corrosion resistance. Type Introduction: Fit Hex Head Spanner: 10mm;Thread: Coarse 6mm; Screw Length: 16mm; Pitch: 1.0mm. Square Nut Size: 11 x 8 x 4m... read more