7ANT Controller

Difference between revisions from 2021/11/22 21:21 and 2021/04/23 21:29.
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! Modular 7 ANT RX switch with controller
* '''This controller allows you to control:'''
** Modular 7 ANT RX switch - [link|https://remoteqth.com/7ant-rx-switch.php]
** One antenna switch (RX) Output = One controller 
** Internal BPFs (160, 80, 40m)
** Preamplifier
** Front-End RX protection
** RX way switch (TX or RX antenna)


!Quick Start Guide
*[How to use this RX antenna switch|https://remoteqth.com/wiki/index.php?page=7ANT+Controller#How_to_use_this_RX_antenna_switch]
*[Controller description|https://remoteqth.com/wiki/index.php?page=7ANT+Controller#Controller_description]
*[RX ANT WAY switch|https://remoteqth.com/wiki/index.php?page=7ANT+Controller#RX_ANT_WAY_switch]
*[Remote Control|https://remoteqth.com/wiki/index.php?page=7ANT+Controller#Remote_Control]
*[Internal BPF and preamp PCB|https://remoteqth.com/wiki/index.php?page=7ANT+Controller#Internal_BPF_and_preamp_PCB]


!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. [Example|https://remoteqth.com/img/ZAW-WIKI/k9-bidir-controller/cable_connecting_ext_trx.png]
** 2. Using TX ANT port on your TRX and switch antennas in the controller. [Example|https://remoteqth.com/img/ZAW-WIKI/k9-bidir-controller/rx_way_switching.png]
Add 1:
'''{.redka#id color: #f23f37; font-size: 200%}⚠{/} MUST be RX ANT ONLY PORT on TRX, no TX!!!'''
* RX ANT IN and OUT on your TRX:
Add 2:

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.
** PTTcontrol 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)
'''{.redka#id color: #f23f37; font-size: 200%}⚠{/} NOTE: PTT must be used!!!'''
* RX SOURCE knob for fast switching of the RX way
'''{.redka#id color: #f23f37; font-size: 200%}⚠{/} NOTE: RED LED TX must light ON when you TX PTT!!!'''

* 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.

* There are two ACC connectors
** RJ45 and SUB-D
** First 8 wires are the same.
'''{.redka#id color: #f23f37; font-size: 200%}⚠{/} NOTE: RJ45 is NOT LAN connection!!!'''

!Remote Control
*''' New controller (version RC) with the Remote Control connector'''
* You can control antennas, BPF, preamp and RX way
** Simply apply + 12V to this PINs
** If you apply voltage to any ANT PIN on RC connector, than the controller goes to remote controlled mode and front panel switches are disabled. Apply + 12V to preamp PIN, BPFs, to RX way PIN is the same as front panel switching, but you can use it for remote control. 
[https://remoteqth.com/img/ZAW-WIKI/7ant/switch/D-sub_15_F+ M.jpg|noborder]

!Internal BPF and preamp PCB


!! Preamplifier GAIN
* With the variable ATT you can set gain of the Preamp as you need.
* Range is 0 to 17 dB
* [bigger picture|https://remoteqth.com/img/ZAW-WIKI/k9-bidir-controller/internal-pcb/deska_red_1.png]

!! Preamplifier BIAS
* With this trimmer you can set right bias for the transistor.
* Bias vs IP3 and gain parameters are there: [OK2ZAW's blog spot|https://ok2zaw.blogspot.com/2015/09/rx-ant-switching-b-ox-part-2-preamp-ip3.html]
* recomended bias is 60 to 85 mA for 13 V+
* [bigger picture|https://remoteqth.com/img/ZAW-WIKI/k9-bidir-controller/internal-pcb/deska_red_2.png]

!! BPF bypass
* You can use one 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|https://remoteqth.com/img/ZAW-WIKI/k9-bidir-controller/controller_k9ay_bi-dir_popisky_850.png]
* [bigger picture|https://remoteqth.com/img/ZAW-WIKI/k9-bidir-controller/internal-pcb/deska_red_5.png]

!! BPF 160M
* 160M BPF selected by controller.
* Switch on the front panel - number 1 on [controller|https://remoteqth.com/img/ZAW-WIKI/k9-bidir-controller/controller_k9ay_bi-dir_popisky_850.png]
* [bigger picture|https://remoteqth.com/img/ZAW-WIKI/k9-bidir-controller/internal-pcb/deska_red_8.png]

!! BPF 80M
* 80M BPF selected by controller.
* NOTCH filters are included, nulls 160 and 40m.
* Switch on the front panel - number 2 on [controller|https://remoteqth.com/img/ZAW-WIKI/k9-bidir-controller/controller_k9ay_bi-dir_popisky_850.png]
* [bigger picture|https://remoteqth.com/img/ZAW-WIKI/k9-bidir-controller/internal-pcb/deska_red_7.png]

!! BPF 40M
* 40M BPF selected by controller.
* NOTCH filter is included, nulls 80m.
* Switch on the front panel - number 3 on [controller|https://remoteqth.com/img/ZAW-WIKI/k9-bidir-controller/controller_k9ay_bi-dir_popisky_850.png]
* [bigger picture|https://remoteqth.com/img/ZAW-WIKI/k9-bidir-controller/internal-pcb/deska_red_6.png]