UniversRadio Transponder

Summary :

• 1- When to use TW(c) UniversRadio Transponder ?
• 2- How to use it ?
• 3- Screenshoot
• 4- Results of "QUERY" interrogation
• 5- Interaction with UniversRadio ExternalRadio

1- When to use TW(c) UniversRadio Transponder?

UniversRadio Transponder is a virtual MODE1 and MODE3 transponder and Identification Friend or Foe.
It is designed for DCS:FC3 NOTA fighter aircraft. So the F-15C...

An IFF interrogation must be done during a radar locked on.

With UR Transponder :

• a fighter can do a IFF interrogation,
• DCS: A-10C and DCS:UH-1H will have to set IFF according to ATC or breifing,
• an ATC software (LotATC ^^) can use IFF or Ident status to manage air circulation.

2- How to use it ?

Which actions can be done ? And, how to do ?

Action	Command
Setting codes Mode 1 & mode 3	Wheel mouse
Setting IDENT request	Left mouse button
Setting Standby	Left mouse button
Doing an interrogation QUERY	Left mouse button Joystick (see UR Control Panel) Keyboard : Query : [Y]
Display on top or hide UR Transponder	Left mouse wheel on Keyboard : [Left Alternate]+[T]
Get and release UR Transponder as primary Window /!\ DCS will be not able to receive any command when UniversRadio Transponder has focus	Middle mouse button When UniversRadio Transponder has focus, frequency is displayed in orange
Moving window	1. Get the focus : middle mouse button 2. Press and hold left mouse button, move cursor 3. On the good position, release left mouse

3- Screenshot

UR Transponder is setted with 00 mode 1 code 0300 mode 3 code
UR Transponder is setted with 02 mode 1 code 0400 mode 3 code in standby position as OFF, it can transmit
UR Transponder is setted with 02 mode 1 code 0400 mode 3 code with IDENTification position

4- Results of "QUERY" interrogation

An IFF interrogation must be done during a radar locked on.

Result and interpretation	Query window display
IFF, transponder, squawk is OFF or contact is not locked on	-- ---- --
UNKNOWN CONTACT It is a human A/C with IFF code in UR CP is 000	-- 7000 UN
FRIEND CONTACT It is a friend DCS AI A/C	-- ---- FR
FRIEND CONTACT It is a human A/C with same IFF code in UR CP mode 1 code : 03 mode 3 code : 4548	03 4548 FR
ENNEMY CONTACT It is a human A/C with a different IFF code in UR CP or It is a ennemy DCS AI A/C	-- ---- EN

5- Interaction with UniversRadio ExternalRadio

When both, UniversRadio ExternalRadio and UniversRadio Transponder are launched, UniversRadio Transponder is displayed below ExternalRadio window.
UniversRadio Transponder window can be moved.

When UniversRadio ExternalRadio has focus, both windows display frequency and code in orange color.