7ANT RX switch controller manual

7ANT RX switch controller

This controller allows you to control:

Modular 7ANT RX switch ODKAZ
One antenna switch (RX) Output = One controller
Internal BPFs (160, 80, 40m)
Preamplifier
Front-End RX protection
RX way switch (TX or RX antenna)

How to use this RX antenna switch

Controller description

1 - Antenna port switch: 1 to 7 and OFF
2 - Antenna port LED indication
3 - Band Pass Filters and Bypass (160, 80 and 40m)
4 - Preamplifier ON/OFF with LED indication
5 - Fast manual switch for RX antenna (see below)

Red LED (TX) means PTT ON
Green LED (RX/TX) means RXing from TX antenna
Green LED (RX) means RXing from RX antenna port

RX ANT WAY switch

There are two ways how to connect your RX antenna controller to your TRX (RX):

1. Using RX antenna port on your TRX
2. Using TX ANT port on your TRX and switch antennas in the controller

1. Using RX antenna port on your TRX
⚠ MUST be RX ANT ONLY PORT on TRX, no TX!

2. Using TX ANT port on your TRX and switch antennas in the controller

TX signal way during TXing

You can use internal RX antenna switch

- this is ideal for TRX without RX only antenna port
- also for the rest TRX for fast RX antenna switching
- switching between TX antenna and RX antenna

If you want to use this feature you MUST use PTT IN to control relay for TX antenna!
There is easy PTT loop on rear panel with two RCA connectors

- PTT control works only in sniffer mode

PTT can continue to your PA over this box

- also when the controler is OFF
- compatible with 5V PTT logic (as OM-power PAs)

⚠ NOTE: PTT must be used!

RX SOURCE knob for fast switching of the RX way

⚠ NOTE: RED LED TX must light ON when you TX PTT!

Protections

There are high voltage and current protections on many places:

- At the input ANT ports in the Switch (also in Splitter)
- At the input of the controller
- Input and output of the internal PCB board with BPFs and preamp
- Output to TRX. When you forget to connect PTT and transmit into RX way. The protections should do its job with the power up to 150 - 200W.

Connectors

There are two ACC connectors

- RJ45 and SUB-D
- First 8 wires are the same

⚠ NOTE: RJ45 is NOT LAN connection!

Internal BPF and preamp PCB

Preamplifier GAIN

- With variable ATT you can set gain of the Preamp as you need
- Range is 0 to 17 dB

Preamplifier BIAS

- With this trimmer you can set right bias for the transistor
- Bias vs IP3 and gain parameters are at the article RX ANT switching box
- Recommended bias is 60 to 85 mA for 13 V+

BPF BYPASS

- You can use on of three BPF (160, 80 or 40m) or you can ByPass it for wideband operation
- Controller by switch on the front panel - number 4 on Controller