Description

Visit Shop Feedback Save this seller Contact 3W CW Short Wave Ham Radio Telegraph Transceiver DIY Forty-9er Kit 7.023MHz Description: 100% Brand New and High Quality 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! Characteristics: 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 Includes: 1X DIY KITS Forty-9er 3W HAM Radio QRP CW HF Radio TRANSCEIVER 7.023MHz Note: If you need large quantity, we can provide wholesale for you with the best price, just contact us freely via Ebay Message. Invoice Payment Shipping Returned Product Other Invoice: To receive the invoice it is necessary to request it at the time of payment. As required by law, it is not possible to issue an invoice on a date other than the date of sales. For billing it is necessary to provide complete data of the company: Business name VAT number Full address (street, postal code, city, country, telephone number and email contact) Minimum billable amount 50 usd shipping costs included. Payment We Accept Worldwide Payment by eBay Platform. Shipping Fast and safe shipping! We will arrange shipping for you within 24 Hours after payment cleared except the holidays. We only ship to the confirmed address provided by Ebay. 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