RF-KIT RF2K-S User manual

Operating and installation instructions RF-KIT Power Amplifier RF2K-S
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User manual

2
User manual RF-KIT Power Amplifier RF2K-S
Dear customer,
Congratulations on the purchase of your RF-KIT linear amplier!
RF-KIT devices incorporate innovative and reliable technology, compre-
hensive functionality and appealing design.
If, despite our best eorts problems are encountered or you have a questi-
on about the device, please contact your dealer or RF-KIT directly.
vy 73 es gd dx de
RF-KIT Reinhard Förtsch
Heuleithe 14
91322 Gräfenberg
Germany
Tel.: [phone]
www.rf-kit.de
eMail: [e-mail]
© 2021 by RF-KIT Reinhard Förtsch
Errors and omissions excepted. The removal of the copyright notice and
the use of content, even in part, violates applicable law and is expressly
prohibited.
5. Using the device locally (continued)
5.2.3 Updates 14
5.2.4 Calibration 15
5.2.4.1 Poti Cong 15
5.2.4.2 Power Meter Calibration 16
5.2.5 Network 17
5.2.5.1 VNC Cong 17
5.2.5.2 LAN 19
5.2.5.3 Wi-Fi 21
5.2.6 Interface 24
5.2.6.1 General 24
5.2.6.2 CAT 24
5.2.6.2 UDP 25
6. Antenna tuner 27
6.1 Operation 27
6.2 Input power for tuning 28
6.3 Manual tuning 28
6.4 Automatic tuning 29
6.5 Indication area Segment-Size 30
6.6 Bypass the antenna tuner 31
7. Technical data, characteristics and certications 32
7.1 Technical data 32
7.2 Characteristics 32
7.3 Certications 33
Table of contents
1. Indroduction 3
1.1 Explanation of symbols 3
1.2 Environment protection 3
1.3 Transport package 3
2. Safety informations 4
3. Control elements and connections 5
3.1 Panel description 5
3.2 Control elements and connections 6
4. Preparing for operation 8
4.1 Unpacking 8
4.2 Scope of delivery 8
4.3 Selecting a location 8
4.4 Grounding 8
4.5 Connecting exciter 8
4.6 Preparing LAN connection 8
4.7 Preparing LAN connection 8
4.8 Connecting antenna(s) 8
4.9 AC Line cord connection 8
5. Using the device locally 9
5.1 Turning device on 9
5.2 User menu 10
5.2.1 Settings 10
5.2.2 Antennas 12
5.2.2.1 Ext. Antenna switch 13

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User manual RF-KIT Power Amplifier RF2K-S
1. Indroduction
1.1 Explanation of symbols
Warnings
Warnings are marked by a warning triangle.
In addition, qualifiers indicate the nature and
severity of the consequences if the measures to
avert the hazard are not followed.
The following qualifiers are used in this document:
NOTE - Risk ofdamage toequipment and property.
WARNING - Risk of serious or even life-threatening personal injury.
DANGER - High risk of serious or life-threatening personal injury.
Important information without danger to people or proper-
ty is marked by the adjacent symbol. These informations are
bounded by lines above and below the text.
1.2 Important informations
Symbol Meaning
►Instruction
➔Reference to a position in the document
Enumeration/List entry
- Enumeration/List entry
(2nd level)
1.3 Environment protection
Disposal of packaging
The packaging protects the device against damage during transport. The
packaging materials are selected according to environmentally friendly
and disposal-related criteria and thus recyclable.
Return of the remaining packaging parts, such as packaging straps, PEbags
etc., into the material cycle saves raw materials and reduces waste.
If you plan to dispose of packaging yourself, pleasedo so at your nearest
recycling centre.
2. Safety informations
Read these operating and installation instructions carefully and com-
pletely before attempting to install and operate the device!
Carefully retain these operating and installation instructions.
Important safety and operating instructions are contained herein.
When selling the device hand this document to the new owner.
There are dangerous voltages inside the device! Before opening the
device:
►Switch off the device by pressing the power switch On/Off (1) at the
front of the device and wait until all cooling fans stop.
►Disconnect the power cable from the Power jack (9).
Pay close attention to the notes and warnings on the following page
to avoid damage to the device and avoid the risk of serious injury.
Please use this linear amplier only according to the instructions pro-
voded in this manual.
The device is designed only for operation on frequencies of the ama-
teur radio service. For legal operation you need a valid amateur radio
license.

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User manual RF-KIT Power Amplifier RF2K-S
This device is NOT a TOY. It must not be handled by children or placed
within their reach.
The unit should only be opened or serviced by a qualied technician.
This device generates high frequency energy. Use the device with due
care regarding the system conguration.
When connected to an antenna, this linear amplier can generate
high-frequency electromagnetic elds, which must be evaluated ac-
cording to applicable national laws.
Appropriate steps must be taken to ensure human exposure is main-
tained within allowed limits with minimum distances observed!
The radio frequency energy generated by this device may interact
with some electronic devices such as pacemakers and debrillators.
Refer to the manufacturer instructions of a pacemaker or debrillator
for precautions in the vicinity of a radio frequency transmitter.
Immediately stop an ongoing transmission if malfunction or interfe-
rence with a pacemaker or debrillator is suspected!
DANGER - HIGH TENSION!
NEVER connect an antenna or remove an antenna
socket while the unit is transmitting!
This can cause electric shock or burns!
DANGER - HIGH TENSION!
NEVER operate the device without its cover secu-
rely in place.
This can cause electric shock or burns!
DANGER - HIGH TENSION!
NEVER apply mains voltage before the linear
amplifier is Grounded.
Touching the linear amplifier in this case can
cause an electric shock!
WARNING!
NEVER operate the device with a mains voltage
other than the recommended 90-240 V mains
voltage.
This could cause a fire or destroy the device!
WARNING!
NEVER operate the device together with an
extension cord or multiple socket.
This could cause a fire or electric shock!
WARNING!
NEVER allow pieces of metal, wires or other
objects to touch the internal parts or connectors
on the back of the device!
This can cause electric shock or burns!
WARNING!
NEVER leave children alone with the device ready
for use!
Risk of injury due to electric shock!
WARNING!
The device is intended only for indoor use. NEVER
expose the device to liquids and NEVER operate it
in a humid environment!
This can cause electric shock, burns and destroy
the device!
WARNING!
The device gets hot during prolonged transmis-
sion operation!
NOTE:
Avoid using or installing the device in environ-
ments with temperatures below -10 ° C (+ 14 ° F)
or above + 40 ° C (+ 104 ° F).
Avoid locating the device where it will be exposed
to direct sunlight or high levels of dust.
NOTE:
Locate the device in a well-ventilated area. Make
sure that no objects are placed on the device or
near the ventilation openings, which will hinder
heat disposal.

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User manual RF-KIT Power Amplifier RF2K-S
3. Control elements and connections
3.1 Panel description
1 On/O
2 Touch screen
3 ANT 4
4 ANT 3
5 ANT 2
6 ANT 1
7 PTT
8 Power On External
9 Power jack
10 Fuse
11 Ground connector
12 Multifunction connector
13 LAN
14 Cooling fan
15 CAT USB
(USB-port is provided by the Raspberry Pi®)
16 -55 dB output
17 Exciter input
0
I
Front panel:
Rear panel:
1
2
5
6
4
3
14
12
16
15
13
7
8
9
11
10
17

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User manual RF-KIT Power Amplifier RF2K-S
3.2 Control elements and connections
1 Power switch O n / O  ( 1 ) (main switch)
This rocker switch switches the device on / o.
2 Touch screen - GUI
This Touch screen controls the device in all operating states.
Also you receive context-related information about the operating
status of the device.
3 ANT 4
50 Ω antenna socket SO-239 (PL-259)
4 ANT 3
50 Ω antenna socket SO-239 (PL-259)
5 ANT 2
50 Ω antenna socket SO-239 (PL-259)
6 ANT 1
50 Ω antenna socket SO-239 (PL-259)
When device is switched o, TRX (17) is looped through to
ANT 1 (6) .
7 PTT
RCA connector for transmit/receive switching
At the center contact (+) of the connector PTT (7) +5 V is pre-
sent.
8 Power On External
RCA connector for remote control: The device can be switched on re-
motely by applying + 12V DC (at least 10 V, max 15 V!) to the center
contact. The power switch O n / O  ( 1 ) must be switched o (“0“).
When DC voltage drops, the PA switches o.
9 Power jack
A plug for this power socket is included and can be wired to the user
supplied power cord capable of 16 Amps, that meets their countries
power plug requirement.
10 Fuse - automatic circuit breaker 16 A
If this automatic circuit breaker trips several times in succession a
serious fault condition may exist!
WARNING!
Do not open the device by yourself, contact the manu-
facturer!
11 Ground connector
12 Multifunction connector DB-15
1
9
8
15 (Plugview)
DB-15 External Antenna Select Input (Pin 1-4):
The RF2K-S internal controller can store tuner settings for up to 16 antennas
per band. Your external antenna selectors connect via the Ant 1 connector.
With this arrangement the amplifier must be made aware which of the up
to 16 antennas is in use. This is done by providing BCD data toPins 1-4 as
detailed in the table. Antennas may be mono or multi-band.
1 - In A BCD
input from ext antenna selector system.*
2 - In B BCD
input from ext antenna selector system.*
3 - In C BCD input from ext antenna selector system.*
4 - In D BCD input from ext antenna selector system.*
* Max. voltage: 15 V for RF2K-S V1 / 50 V for RF2K-S V2.
For the version number, see the nameplate at the back of the PA.
Addressing externally connected and managed antennas
( 1 = active; 0 = inactive):
Antenna Pin 1 (In A) Pin 2 (In B) Pin 3 (In C) Pin 4 (In D)
10000
21 0 0 0
30 1 0 0
41 1 0 0
50 0 1 0
61 0 1 0
70 1 1 0
81 1 1 0
90 0 0 1
10 1 0 0 1
11 0 1 0 1
12 1 1 0 1
13 0 0 1 1
14 1 0 1 1
15 0 1 1 1
16 1111

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User manual RF-KIT Power Amplifier RF2K-S
DB-15 BCD Band Data Output (Pin 5 - 15):
5 - Out D BCD band data output
(Outputs are Open Collector 50mA to GND)
6 - Out C BCD band data output
(Outputs are Open Collector 50mA to GND)
7 - Out B BCD band data output
(Outputs are Open Collector 50mA to GND)
8 - Out A BCD band data output
(Outputs are Open Collector 50mA to GND)
Addressing according to the YAESU® band data table:
Band Pin 5 (Out D) Pin 6 (Out C) Pin 7 (Out B) Pin 8 (Out A)
160 m 0001
80/75 m 0010
60 m 0000
40 m 0011
30 m 0100
20 m 0101
17 m 0110
15 m 0111
12 m 1000
10 m 1001
6 m 1010
9 - TKEY Output/input for future tuner control
10 - TSTR Input for future tuner control
11 - RS232 TX For future applications
12 - RS232 RX For future applications
13 - GND RF2K-S V1: GND
RF2K-S V2: Ext. input 5-15 V
(for future functions)
14 - GND RF2K-S V1: GND
RF2K-S V2: Ext. input 5-15 V
(for future functions)
15 - OUT 15 V Max. 500 mA if device is switched on; can be used for
external controls (e.g., remote control relay control).
13 RJ45 LAN Connector
Here you can connect your RF2K-S to your home network for remote
control by LAN-cable.
Note: Alternatively you can use the build-in Wi-Fi to connect the
RF2K-S to your local Wi-Fi network.
14 Cooling fan
The high-performance fan is temperature-controlled and ensures
reliable cooling of the power electronics with minimal noise, even
during maximum continuous load (contest operation!).
15 CAT USB - USB 2.0 connector “CAT“
Band data import / export between exciter and PA.
16 -55 dB output
SMA connector for adaptive pre-distortion of the exciter signal in
appropriately equipped SDR transceivers..
17 TRX - 50 Ω SO 239 connector
Input exciter (transceiver) signal.

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User manual RF-KIT Power Amplifier RF2K-S
4. Preparing for operation
4.1 Unpacking
►After unpacking, inspect the device for shipping damages.
►Report any damage immediately to the delivery company and your
supplier. Keep the shipping box.
4.2 Scope of delivery
1x RF2K-S Power Amplier
1x 120 V AC line cord
1x 240 V AC line cord
1x Short coaxial cable with 1x SMA connector (“Pigtail“)
1x Micro SD-Card for operating system
4.3 Selecting a location
Because of its weight the device must be situated on a stable surface.
►Select a location for the device that ensures adequate air circulation
(at least 10 cm of free space in front of and behind the PA are
neccessary).
►Avoid locations with extreme heat or cold, high humidity and
vibrations.
Avoid operation near TV sets, television antennas, radios and other elec-
tromagnetic sources.
4.4 Grounding
WARNING!
NEVER connect the Ground connector (11) to a
gas or power line, as this may cause an explosion
or a electric shock!
To prevent electric shock, television interference (TVI), radio interference
(BCI) and similar problems:
►Ground the device via the Ground connector (11) at its back.
For best results, use a copper wire with large cross-section to connect
to a copper rod, as long as possible, buried in conductive soil.
►Keep the length of this copper wire as short as possible!
4.5 Connecting exciter
►Connect the antenna socket of the exciter (a transceiver in general)
to the connector TRX (17) of the PA via a coaxial cable.
4.6 Connecting PTT-cable
►Connect the PTT connector of the exciter (a transceiver in general)
to the connector PTT (7) of the PA via a RCA cable.
At the center contact (+) of the connector PTT (7) +5 V is pre-
sent.
4.7 Preparing LAN connection
►Connect a ethernet cable to the LAN (13) socket.
►Connect the ethernet cable to the router / switch of your local area net-
work.
4.8 Connecting antenna(s)
Do NOT transmit without an antenna or dummy load connected! Select
one or more 50 Ωantennas or dummy load with 50 Ωlead and more than
2 kW rated power.
►Connect 1-4 antenna(s) to the desired 50 Ω antenna socket using
suitable coaxial cable with as little loss of power as possible, and pro-
fessionally mounted PL-259 plugs to connector ANT 1 (6), ANT 2 (5),
ANT 3 (4), ANT 4 (3).
When device is switched o, TRX (17) is looped through to
ANT 1 (6) .
4.9 AC Line cord connection
The device works with mains voltages between 90 and 290 V AC. We re-
commend the use of 200-240 V / 50-60 Hz AC to ensure the full performan-
ce of the device.
If the device is operated at 110 V, the maximum output power drops to
approximately 900 W.
►Connect the device with the included line cord via Power jack (9) to a
properly installed power outlet.

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User manual RF-KIT Power Amplifier RF2K-S
Indication area Forward Power (analog PEP and digital / maximal)
Indication area Reected Power (analog PEP and digital / maximal)
Indication area SWR (analog PEP and digital / maximal)
Indication area Error Messages
Switching area/Indication area Currently Selected Antenna
Individual connections for a band are assigned in the „Antennas“ user menu.
Antenna(connections) available for the selected band are displayed with white labeling.
The antenna currently connected to the device is displayed with green label.
Dark grayed out buttons cannot be selected.
Indication area Used Band
Switching area
Interface
Switching area/
Indication area
Antenna Tuner
Indication area Operating Parameters
(Temperature output stage, end transistor supply voltage, output stage current consumption)
Indication area Personalization Text
An individualization text to be edited in the user menu (e.g. call sign) is displayed here
Indication area
Frequency TRX
Switching area
Standby
Switching between
“Standby“ (red)
“Operate“ (green)
5. Using the device locally
5.1 Turning device on
►Turn on the device using power switch On/O (1).
The Touch screen (2) lights up and shows the user interface:
Switching area Menu
Touching this switching area activates the user menu
Switching area Tune
Touching this switching area triggers a tuning process
Switching area
Reset PA
If the PA switches o due to an error, it is reactivated after actuating this switching
area; the error message (e.g. “zu hohes SWR“ vanishes)

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User manual RF-KIT Power Amplifier RF2K-S
5.2 User menu
►Touch the switching area Menu.
The Touch screen (2) changes to the user menu and displays the screen
shown to the right. The following submenus can be selected:
5.2.1 Settings
Personalization Text
►Click the text boxand a touch screen keyboard will appear to allow
editing the personalisation text.
Display
►During remote operation, it makes sense to turn o the Touch screen
(2) (activated “On“ / deactivated “O“)
Cursor
►Selection cursor visible („ON“) / invisible („OFF“)
Type
►Choose your preferred Power display
(Standard / Cross Pointer):
Standard Cross Pointer
Switching areas Submenus
(Settings / Antennas / Update / Calibration / Network / Interface)
Switching area Close
Touching this switching area closes the user menu;
subsequently the main screen will be displayed
Switching area
Tuner
Activates (“On“) /
deactivates (“O“)
the antenna tuner
Switching area Cursor
(cursor visible („ON“) /
invisible („OFF“))
Input eld
Personalization Text
Editing via a PC connected
to the PA
Switching area
Display
(activated („On“) /
deactivated („O“) )
Switching areas
Memory Bank (1 / 2 / 3)
Touching one of these switching areas
selects one of three memory banks
together with the antenna sockets
assigned to them (max. 4)
Switching areas
Delete Antenna
(1 / 2 / 3 / 4 /
Ext. Ant)
Delete antenna
for selected
memory bank
Switching area Sleep Timer
(activated („On“) /
deactivated („O“) )
Switching areas
Sleep Timer Duration
(Time until Standby in minutes)
Switching areas
Erase Memory Bank
Touching one of these switching areas deletes
the contents of only the selected memory bank
Switching area Type
(Standard / Kreuzzeiger)