DX WORLD ELECTRONICS
 
3-COMBINED BOARDS IN ONE plus RF DELAY board.
Board work with any transceiver brand.
 
COMB. Board incude:
- LPF 7-Pole Bandpass Filters 160–6m (Version 2.0)
- Universal band decoder v2.0
- RX/TX & ANTENNA switch board v2.0
 
Plus include the RF DELAY BOARD
 
MAX POWER : 2000w pep
POWER SUPPLY: 12V
 
LPF 7-Pole Bandpass Filters 160–6m (Version 2.0)
High-performance 7-pole (7th order) Chebyshev low-pass filters for HF and 6m bands.
Designed for effective harmonic suppression and high-power operation.
 
Harmonic Suppression
>32dB or more on 2nd harmonic.
>58dB or more on 3rd harmonic.
 
Main LPF Features
Frequency Bands: 160–6m
Filter Type: 7-pole Chebyshev (7th order)
Insertion Loss: Better than -0.10 dB
All capacitors: High-voltage NPO/COG type
Input/Output Impedance: 50 Ω
 
Auto band selection:
160m
80m
60/40m
30/20m
17/15m
12/10m
 6m
 
UNIVERSAL BAND DECODER 160-6M v2.0
RF input: 1-100W MAX
Board work with a combination of RF sense and PTT detection at the same time to switch on the selected band.
The PTT line goes from transceiver to PTT pad.
When transmit the  RF/DLY pad enables +V of the RF DELAY board.
Board work with any transceiver brand.
PTT activated when goes low(ground).
On board trimmer to adjust rf input gain if necessary.
 
RX-TX & ANTENNA SWITCH v2.0
This board is to switch amplifier between transmit and receive for use with transceiver.
Also has 2 ANTENNA PORTS that you can use.
 
ON-BOARD CONNECTIONS
TRX – Connect the transceiver RF signal.
AMP IN – Connect to the RF input of the amplifier board.
AMP OUT – Connect from the RF (ant pad of dual protection board if use -or- from LPF out). 
ANT1 – Antenna 1 connection.
ANT2 – Antenna 2 connection.
+ANT – Apply +12V to switch between ANT1 and ANT2
(ANT1 is the default when no voltage is applied).
TX – Connect to an LED indicator for transmit (TX).
BIAS – Provides +12V only during TX.
Used to supply amplifier bias so the amplifier is enabled only during transmit.
PTT – Connect an RCA jack for PTT keying from the transceiver
(goes to TX when grounded).
R/DLY – Connect to the RF delay board +V.
160-6M PADS Provides output connection for TFT display controller -or- led panel to indicate selected LPF band.
 
RF DELAY BOARD
This board is used to prevent hot switch on RX/TX relays switch board from high rf power.
 
 
Boards Dimensions: 
-COMB. board: 350x215 mm
-RF DELAY board: 50x45mm
 
For more information please contact us.
 
For all seperate boards can see here:
- LPF BOARDS
- DECODER BOARD 
- RX/TX & ANTENNA SWITCH BOARD 
- RF DELAY BOARD