902mhz to 28mhz Highly Stable Transverter board for FLEX RADIO UHF QRP 0.1W 33cm

Description

902/21 or 28 MHz
High Dynamic Low Noise
Highly Stable
QRP
Transverter Board to Flex radios.
To note, please:
Only in our store you buy transverter assembled and adjusted by official designer UR3LMZ.
Beware of fakes !!!
Up for sale
New Generation of UR3LMZ
- transverter for
FLEX radios
.
We specially designed this transverter for
easy connection to Flex radio
, SDR and other similar radios. You only need a
couple of cables
to connect to your radio and you can work on UHF with all kinds of modulation.
It is specially developed for severe conditions of reception - contests, DXing, the neighboring powerful broadcasting and amateur stations. The mixer is made on special HI-frequency
ADE chip
with whopping dynamic range
IP3 + 17dBm typ
.
We made a new board on a modern elemental base
without tuning elements
. This gives a
very stable
performance, which is important when working on
UHF
.
This transverter board has
highly stable
frequency synthesizer
.
This allowed us to obtain a long-term stability of
0.2 ppm
and to extend the operating range of the transverter
902 - 910
MHz
with your HF radio frequency
21 - 29 or 28 - 36 MHz.
This model has
2 LO frequencies
that can be easily switched using jumpers on the transverter board -
874 and 881 MHz.
This allows you to use HF radio with frequencies
21 or 28 MHz
.
High frequency stability allows you to work in FM, SSB, CW and even
digital modes FT8 JT65 and etc
.
In this transverter model we have added an
additional input
for external frequency synchronization
. If you need very high frequency stability, you can feed a
highly stable 10 MHz
frequency to a dedicated transverter input. In this case, the stability of the frequency of the transverter board will be determined by the stability of the external 10 MHz generator.
If you do
not need TX mode
, then the connection will be
very simple
- please see the pictures in the item description.
We are offering completely built and tested in UR3LMZ lab board that comes with the
English description
which contains the circuit diagram of this transverter and diagram of how you can connect to your Flex.
Technical specifications
RF range
-
902
... 910 MHz
IF range
-
21
or 28 MHz
(
switchable)
IF input power
-
1 ... 3 mW / 0 ... 5 dBm (10mW max)
LO frequency
-
874 or 881
MHz
(
switchable)
LO frequency stability
-
+/- 0.2 ppm
Output power
-
0.1
W
RX gain
-
typ. 20 dB
Noise figure
-
typ. 0.8 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. 0.5 A (TX)
TX Output transistor
-
BFR193
RX Input chip - ADE
Dynamic range IP3 + 17dBm typ.
RF sockets type - SMA
Dimensions (mm) - 70 x 40 (2.75 х 1.58 in)
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
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.
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.