70 To 28 MHz TRANSVERTER 70/28 MHz 4m 4 Meter 70 Mhz Converter VHF UHF

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70/28 MHz Transverter Board<br>To note please:<br>My original transverters have my website URL printed on top side of their PCB. There are a lot of fake transverters available on eBay .<br>=========================================================<br>Up for sale 70/28 MHz or 4/10 meters band transverter board.<br>We designed and built this transverter board with a purpose to bring an affordable low cost and high performance Transverter on the Ham Radio market. Over the years we sold a lot of them. Just to check my feedbacks!<br>With this transverter board you can work on<br>4 meter<br>band using any type of HF radio that has the<br>10 meter<br>band. It would work the whole 4m band at<br>70 to 72 MHz<br>if your base radio has the<br>28 to 30 MHz<br>band. It works any modes such S<br>SB, CW or FM<br>if its available in your radio.<br>This NEW model of 70 MHz Transverter board allows you additionally use the separate RX/TX outputs of your base 28 MHz radio.<br>What can you do with this transverter board ?<br>Make your HF radio works on<br>4 meters<br>band.<br>Convert your Flex Radio or other SDR Radio into all mode<br>4 meters<br>transceiver with a Spectrum Waterfall.<br>Use this board as the RX converter with SDR or HF receiver and get<br>4 meters<br>band there.<br>We are offering completely built and tested in our lab board that comes with the English description which contains the circuit diagram of this transverter and circuit of a simple attenuator board.<br>Technical specifications<br>RF range  -<br>70 ... 72 MHz<br>IF range  -<br>28 ... 30 MHz<br>IF input power  -<br>1 ... 50 mW / 0 ... 17 dBm (0.05 W max.)<br>LO frequency  -<br>42 MHz (42.000 MHz Fundamental Crystal)<br>LO frequency stability  -<br>+/- 3 ppm<br>Output power  -<br>10 ... 15 W<br>RX gain  -<br>typ. 20 dB<br>Noise figure  -<br>typ. 1.0 dB<br>Image rejection  -<br>typ. 70 dB<br>PTT control  -<br>Contact closure to ground<br>Supply voltage  -<br>+13.8 V DC (+12 ... 14 V DC)<br>Current consumption  -<br>typ. 1.3 A (TX)<br>TX Output transistor  -<br>RD16HHF1<br>RX Input transistor  -<br>BF998<br>Dimensions (mm) -<br>80 x 45<br>If you're going to connect this transverter board to the radio that has 100 W output power some sort of attenuator between your  radio and this transverter board is necessary. We designed a simple attenuator board  which contains a few resistors and couple relays only. You can easily build it yourself.<br>Or you can buy assembled and tested ATTENUATOR BOARD<br>there<br>In case you were going to connect this transverter board to the<br>FLEX Radio<br>then<br>NO<br>attenuator board is required.<br>In respect and to the favour of our buyers we put the TRANSVERTER BOARD and ATTENUATOR BOARD together in a ONE SALE as just the boards or as the KIT with a BOX and other parts.<br>To buy 70 MHZ TRANSVERTER + ATTENUATOR BOARDS together<br>there<br>This sale is not including the attenuator board, heatsink, power and RF connectors, wires or cables. You are getting what you see on the pics.<br>Also we are offering the ASSEMBLED TRANSVERTER IN BOX or the KIT.<br>70/28 MHZ ASSEMBLED TRANSVERTER IN BOX<br>there<br>70/28 MHZ TRANSVERTER + ATT. BOARDS + ENCLOSURE<br>KIT<br>there<br>The OTHER BANDS TRANSVERTERS you can find<br>there<br>We ship Worldwide<br>from the Ukraine by<br>Airmail<br>with insurance and provide a tracking number that can be easily tracked through the Internet<br>.<br>After the package left Ukraine you can track it on a tracking system of the Postal service of your country. The shipping is safe and fast. Usually it takes up to<br>20 days<br>but it can be more or less delivery time depending on how quickly the package goes through Customs.<br>Save time & money with<br>FREE Auctiva I