432/28 MHZ TRANSVERTER BOARD

*** TO BUY WITH CONFIDENCE, YOU ARE GETTING PAYPAL PROTECTION ! ***

64 USD SHIPPED ONLY !!

This is the completely new design of the 432 MHz Transverter Board. This NEW model of the 432 MHz Transverter board allows you additionally use the separate RX/TX outputs of your base 28 MHz radio. How to use it is mention in the description of the board I am including with it.

With this transverter board you can operate on the 70cm band using any type of the HF radio that has the 10 meter band. Its special ordered F1 filter has bandwidth about 10 MHz so the transverter would work fine within 10 MHz range at 428 to 438 MHz if your base radio has 24 to 34 MHz band. Most HF radios have 28 to 30 MHz band so in this case it means you would have the 432 to 434 MHz band. It works any modes such SSB, CW or FM if its available in your radio.

This is a circuit of this NEW model of the 432 MHz Transverter Board. (Click on it to zoom it up)

Applying only 1 to 50 mW (0.05 W Max.) to this transverter on 10m band you get about 1.5 ... 2 W output power on the 70cm band. There is no antenna relay required.

We are offering the completely built and tested in our lab board. To get it worked with your radio perfectly you have to do some soldering works with the cables, wires and connectors.

In case you're going to connect this transverter to the radio that has 100 Watts output power then additionally you have to build the attenuator or some sort of interface board between your radio and this transverter board yourself.

We are includind a circuit of a simple attenuator board which contains a few resistors and relays only. It can be easily built by any person with a basic knowledge in electronics. Also there you find a circuit of a possible connection of this transverter board to your HF radio.

 

Technical specifications

RF range - 428 ... 438 MHz
IF range - 24 ... 34 MHz (432.000 MHz at 28.000 MHz)
IF input power - 1 ... 50 mW (0.05 W max.) or 0 ... 17 dBm
LO frequency - 404 MHz
LO frequency stability - +/- 3 ppm
Output power - 1.5 ... 2 W
RX gain - typ. 20 dB
Noise figure - typ. 0.7 dB
Image rejection - typ. 70 dB
PTT control -Contact closure to ground
Supply voltage - +13.8 V DC (+12 ... 14 V DC)
Current consumption - typ. 1.5 A (TX)
TX Output transistor - RD15HVF1
RX Input transistor - BF998
Dimensions (mm) - 80 x 45

 

Download a copy of the description I am including with the board there and there

The circuit of the simple attenuator board is there

I am testing the transveter boards before putting them in a shipping box.
If you were not satisfied with the transverter then you ship it back and I refund your money.

 

We take PayPal and you can pay pushing "Buy Now" button.

Click button below and buy the TRANSVERTER BOARD for 54 USD + 10 USD shipping

OR YOU CAN GET TOGETHER

TRANSVERTER BOARD + ATTENUATOR BOARD for 63 USD + 10 USD shipping

432/28 MHz

TRANSVERTER BOARD - $64

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432/28 MHz TRANSVERTER BOARD

PLUS

ATTENUATOR BOARD - $73

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