Description

Store Categories Store Categories eBay Motor Fashion Books, Movies & Music Electronics Collectibles & Art Home & Garden Sporting Goods Toys & Hobbies Business & Industrial Health & Beauty Other Item Description Description: This is a very small volume of simple 40 meter band micro-power amplitude telegraph transceiver. The new "Forty-9er" kit has the following characteristics: 1, the output power is raised to 3W, power output using an American ring, it has a strong remote communication capabilities, enhance the Forty-9er practicality! 2, increasing the side tone circuit, so that when you operate the transmitter, the headset can also listen to the keying signal, side tone circuit using an audio sine wave generator, the effect was significantly better than the ordinary sense of hearing frogs square wave generator. 3, when the vibration frequency of the kit launch fixed 7.023MHz, when receiving the vibration frequency is 7.023-7.026MHz. PCB size is 6cm * 6cm. 4, the kit can be easily placed in the PCB 65mm * 35mm * 100mm standard aluminum shell, the kit does not include this housing. If there is a need to contact me! The main index: Power: 12V Receive quiescent current: 23mA @ 12V Emission current: 450mA @ 12V Transmit power: 3W @ 12V Frequency range: the vibration emission 7.023MHz, receive local oscillator 7.023-7.026MHz Transceiver Distance: 100-300 km. Mode: CW Circuit Schematics: Receiving section for a typical straight LM386 NE602 plus variable receiver. Emitting portion utilizes the oscillation circuit NE602, and then to do the buffer amplifier 8050, 8050 also as the transmission key, the last stage is a class C amplifier D882, and then send the LPF after the antenna is connected. There sidetone launch. Kit Description: This kit is not soldered, all shipments of electronic components, shop display of the finished picture, for reference when buying. FAQ: Q: How far can be transmitted? HF communication and propagation environment, antenna, equipment, operating level, and several other factors, alone device more difficult to guarantee a specific distance. Our suites are all classic models, a lot of people at home and abroad is already in use, the restaurant also has a client transmission performance is very good, the basic premise is that good performance antenna! Q: telegraph can talk it? CW transceiver can not talk, only supports the SSB or FM modulation, such as a machine before they can talk, can only use the key transceiver transmitter and headphones receive messages. Q: key need to buy it? For just beginners, amateur production expensive in DIY, do not recommend that you purchase an expensive key recommended homemade, find old mouse + MP3 headset line their own modified one. Q: What kind of antenna? Recommended "dipole" or "inverted V antenna", you can query "shortwave dipole antenna" for more information. Package Included: 1x New "Forty-9er" kits (not assembled) 1x Schematic diagram 1x Assembly diagram Feedback Payment Shipment About us Feedback We appreciate positive feedback . we always try our best to service our customers . so if you have ant question ,PLEASE DON’T HESITATE TO TELL US, we are always here to offer help . Payment We prefer PayPal .For purchasing multiple items , please contact us for a combined invoice . generally we would like to receive payment thin 48 hours if . Shipment We provide airmail service with good package . The items will be shipped within the nest 2 business days after we received the payment . when you buy multiple items ,your shipping cost will be combined with discount . SHIPPING TIME (weekends/holidays excluded) Country Name Shipping Time Country Name Shipping Time USA/Canada 10 -15d Spanish/Portugue 10-25d East/South Asia 10 -15d France/West Asia 10-25d United Kingdom 10 -20d Italy 10-30d Australia/New Zealand 10 -15d West Asia/Middle East 15-25d Most Country of West/North Europe 10-20d South America and Africa 15-30d East /Middle Europe/Russia 10-25d About us NEW, GOOD QUALITY, ORIGINAL PACKAGE LARGE STORE AND THE LOWEST PRICE NO-QUESTION-REFUND, FOR LARGE QUANTITY ,OFFER BETTER PRICE, ORIGINAL PACKING(TAPE REEL/TUBE/TRAY） We specialize in electronic components . ICs, Capacitors, Diodes, Resistors, LEDs, Transistors, and so on. Especially in Hard To Find Parts . we only sell NEW , ORIGINAL parts . please buy with confidence .We offer NO-QUESTION-REFUND go to my store