And then connect HF and VHF antennas. It isn't necessary to do any switchings!!! Just power on transverter the tumbler on its front panel - you in VHF band.
Switch off a transverter - you on HF again. This item very nice working with SDR and FLEX radios with a spectrum Waterfall. Complete with tested and adjusted in laboratory the transverted has the english description which contains the circuit of the transverter. DC current is 12V to 14V.
LO freq stability +/- 3ppm. IF RF input power on 28mhz is 10Wt. TX Output transistor is RD15HVF1.
The Output power on 144 mhz is about 10 to 15W. Max power in bypass mode 100Wt (on HF). RX Input transistor is BF998. Size of the transverter is 14cm x 5cm x 10cm. To byu full compllete TRANSVERTER KIT.Transverter board, attenuator board, all connectors and etc. After the package left Ukraine you can track it on a tracking system of the Postal service of your country. The item "Transverter 144 mhz to 28 mhz HF VHF UHF 10W 2 meter band ham radio" is in sale since Thursday, March 3, 2016. This item is in the category "Consumer Electronics\Radio Communication\Ham, Amateur Radio\Ham Radio Transceivers".
The seller is "hfvhfparts" and is located in EUROPE. This item can be shipped worldwide.