50/28 MHz Transverter + Attenuator Board with RF sense VOX.

Buy a set pay less!

It was developed by the Ukrainian engineer UR3LMZ especially for Ham radio.

Many Ham's around the world use this transverter a board and were convinced of his excellent work.

With this transverter you can operate on the 50 mhz band using any type of the HF radio at 28 mhz. 

This item very nice working with SDR and FLEX radios with a spectrum Waterfall.

Typical minimum power output of HF radio of 8 - 10 Watts. The attenuator weakens on 30db to the level of a transverter, necessary for normal operation of a transverter board.

Don't give power on a board input in the VHF mode more 15wt is can kill her!!!

Don't forget to reduce the power of your transceiver to level 8 – 10wt by operation in the VHF mode!!!

Technical specifications transverter board

        •  RF range  -  50 ... 54 MHz
        •  IF range  -  28 ... 32 MHz
        •  IF input power  -  1 ... 50 mW / 0 ... 17 dBm (0.05 W max.)
        •  LO frequency  -  22 MHz
        •  LO frequency stability  -  +/- 3 ppm
        •  Output power  -  10 ... 15 W
        •  RX gain  -  typ. 20 dB
        •  Noise figure  -  typ. 1.0 dB
        •  Image rejection  -  typ. 70 dB
        •  PTT control  - contact to ground
        •  Supply voltage  -  +13.8 V DC (+12 ... 14 V DC)
        •  Current consumption  -  typ. 1.3 A (TX)
        •  TX Output transistor  -  RD16HHF1
        •  Dimensions - 80 x 45 mm (3.15 x 1.77 in)

Technical specifications attenuator board

  •  Attenuation Level - 30 dB (10W IN – 0.01W OUT)
  •  RF Input Power - 15 W Max
  •  PTT control - automatic
  •  DC current is 12V to 14V
  •  Size of the board is 6.5cm x 4.8cm (2.56 х 1.89 in)

We are offering completely built and tested in UR3LMZ lab boards that comes with the English description which contains the circuit diagram of this transverter and circuit of a attenuator board.

This sale includes the completely built, tuned and tested transverter and attenuator board with its schematic diagram and a diagram of a possible connection of this transverter board to your HF radio.

To get the transverter worked you have to do some soldering works with a cables, wires and connectors. Probably some instruments would be required. Does not include the interface module, heatsink, power and RF connectors, wires or cables.

If you were not satisfied with the transverter board then you ship it back and we refund your money.

We guarantee delivery of your package without paying additional import duties or Customs taxes.

Shipping

We ship Worldwide by Airmail with trucking.

Typical shipping time:

EUROPE 2 weeks

USA, Canada 3 weeks

Africa, South America, Asia, Australia 4-6 weeks.

Payments

At this time, we only accept payments through PayPal. 

Note!

Please understand that the package maybe delayed due to reasons outside of our control, like weather, holidays or shipping errors. We appreciate your patience but if you have not received package in the time stated above, please feel free to contact us through eBay message. We will try our best to solve the problem for you.