View source for K9IU

{{AFC submission|t||ts=20200621091520|u=Firespeaker|ns=118}}

{{infobox organization
|name          = Indiana University Amateur Radio Club (K9IU)
|image         = 
|image_border  = 
|size          = 
|caption       = 
|map           = 
|msize         = 
|mcaption      = 
|abbreviation  = K9IU
|motto         = 
|formation     = Before 1925
|extinction    = 
|type          = School Club
|status        = 
|purpose       = Advocacy, education, fun
|headquarters  = 
|location      = Indiana Memorial Union, [[Indiana University, Bloomington]]
|region_served = [[Indiana University, Bloomington|Indiana University]]
|membership    = 
|language      = English
|leader_title  = 
|leader_name   = 
|main_organ    = 
|affiliations  = 
|num_staff     = 
|budget        = 
|website       = {{Official|www.indiana.edu/~k9iu}}
|remarks       = FM repeater on 147.180&nbsp;MHz (+600&nbsp;KHz) [[CTCSS|PL]] 136.5&nbsp;Hz
}}

'''Indiana University Amateur Radio Club''' or '''K9IU''' is the [[:w:amateur radio]] club at [[:w:Indiana University, Bloomington]].  The club is involved in a wide range of amateur radio activities, including contesting and local community service (for example, the [[:w:Hilly hundred]]).

== Facilities and services ==
K9IU operates [[:w:2-meter band|2-meter]] and [[:w:70-centimeter band|70&nbsp;cm]] [[:w:Amateur radio repeater|repeaters]]. The two-meter repeater transmits on 147.180&nbsp;MHz with a +600&nbsp;kHz receiver offset and utilizes a 136.5&nbsp;Hz PL/[[CTCSS]] tone for access.

The club runs weekly [[:w:Amateur radio net|net]]s on the VHF voice FM repeater at 7&nbsp;p.m. every Monday and on the [[10-meter band]] on Thursdays at 7:30&nbsp;p.m. (28.410&nbsp;MHz, USB).

The club maintains a fully operational radio room / ham shack on the 6th floor of the [[:w:Indiana Memorial Union]]'s west tower (the "student activities tower"), with two [[:w:high frequency]] (HF) [[:w:transceiver]]s.  Antennas include an HF [[:w:Yagi antenna]] (Mosley Pro67 installed in 2017) and various wire [[:w:Antenna (radio)|antenna]]s including a {{Convert|165|ft|m|adj=on|abbr=on}} wire with an [[:W:Icom Incorporated|Icom]] AH-4 remote [[:w:antenna tuner|auto-tuner]] located on top of the tower where the shack is located.

{{As of|2017|06}}, due to roof repairs on IMU, the main VHF voice FM repeater is housed at the IMU stadium press box tower, utilizing a [[:w:Yaesu (brand)|Yaesu]] System Fusion D1X repeater with 25 watts output, a WaCom [[:w:band-pass filter|band-pass]] / [[:w:band-reject filter|band-reject]] (BpBr) [[:w:Duplexer#Frequency domain|duplexer]], and a Sinclair DB224 repeater antenna providing a 6&nbsp;dB [[:W:omnidirectional antenna|omnidirectional]] radiation pattern.  The repeater is capable of receiving either traditional FM or [[:w:List of amateur radio modes#Digital voice|digital C4FM]] signals and rebroadcasting those in standard FM mode.  The repeater is used for on-campus activities as well as serving as the Monroe county [[:w:Amateur Radio Emergency Service|ARES]]/[[Skywarn]] backup repeater with full emergency battery power.

The multi-mode digital repeater is housed at the Brisco dorm roof, operating using a Diamond F-718 antenna and a [[:w:Ultra-high frequency|UHF]] Yaesu DR1X repeater along with [[:w:Raspberry Pi]], Pi-Star,{{Define?|date=March 2020}} and MMDVM{{Define?|date=March 2020}} board to provide [[:w:D-STAR]], YSF,{{Define?|date=March 2020}} [[:w:NXDN]], [[:w:Project 25|APCO P25]] and [[:w:Digital mobile radio|DMR]] capabilities.  The 146.940 repeater{{Which?|date=March 2020|reason=First mention of this repeater?}} operates in "node" mode, providing additional input to the multi-mode digital system.  The multimode system is tied into the Southern Indiana Network (SIN).

The club meets formally on the last Sunday of the month, at 7&nbsp;p.m., at the K9IU ham shack.

== History ==
In the early 1920s, the physics department had been licensed under the call 9YAG.  The club was founded by 1925 and was licensed under the call W9IU by 1930.  Later, the club's call was changed to K9UAN, and in 1960 it moved to a shack at the [[Indiana Memorial Union]].  The club's current call sign, K9IU, was issued in 1962.

== References ==
* [http://www.indiana.edu/~k9iu/?q=node/1 K9IU membership]
* [http://www.indiana.edu/~k9iu/?q=node/14 K9IU repeaters and IRLP]

[[:Category:Amateur radio organizations]]
[[:Category:Student organizations by university or college in the United States]]
[[:Category:Indiana University Bloomington]]


{{amateur-radio-stub}}

{{Drafts moved from mainspace|date=June 2020}}