70 to 28 MHz TRANSVERTER 70/28 MHz 4m 4 meter 70 Mhz Converter VHF UHF

Description

70/28 MHz Transverter Board
To note please:
My original transverters have my website URL printed on top side of their PCB. There are a lot of fake transverters available on eBay .
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Up for sale 70/28 MHz or 4/10 meters band transverter board.
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!
With this transverter board you can work on
4 meter
band using any type of HF radio that has the
10 meter
band. It would work the whole 4m band at
70 to 72 MHz
if your base radio has the
28 to 30 MHz
band. It works any modes such S
SB, CW or FM
if its available in your radio.
This NEW model of 70 MHz Transverter board allows you additionally use the separate RX/TX outputs of your base 28 MHz radio.
What can you do with this transverter board ?
Make your HF radio works on
4 meters
band.
Convert your Flex Radio or other SDR Radio into all mode
4 meters
transceiver with a Spectrum Waterfall.
Use this board as the RX converter with SDR or HF receiver and get
4 meters
band there.
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.
Technical specifications
RF range  -
70 ... 72 MHz
IF range  -
28 ... 30 MHz
IF input power  -
1 ... 50 mW / 0 ... 17 dBm (0.05 W max.)
LO frequency  -
42 MHz (42.000 MHz Fundamental Crystal)
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 closure to ground
Supply voltage  -
+13.8 V DC (+12 ... 14 V DC)
Current consumption  -
typ. 1.3 A (TX)
TX Output transistor  -
RD16HHF1
RX Input transistor  -
BF998
Dimensions (mm) -
80 x 45
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.
Or you can buy assembled and tested ATTENUATOR BOARD
there
In case you were going to connect this transverter board to the
FLEX Radio
then
NO
attenuator board is required.
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.
To buy 70 MHZ TRANSVERTER + ATTENUATOR BOARDS together
there
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.
Also we are offering the ASSEMBLED TRANSVERTER IN BOX or the KIT.
70/28 MHZ ASSEMBLED TRANSVERTER IN BOX
there
70/28 MHZ TRANSVERTER + ATT. BOARDS + ENCLOSURE
KIT
there
The OTHER BANDS TRANSVERTERS you can find
there
We ship Worldwide
from the Ukraine by
Airmail
with insurance and provide a tracking number that can be easily tracked through the Internet
.
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
20 days
but it can be more or less delivery time depending on how quickly the package goes through Customs.
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