![](http://www.sowp.org/wp-content/uploads/2019/02/LR-1102051901-NAJ-Eqpt-4-Photos-768x457.jpg)
Equipment at NAJ, Great Lakes, IL, ~1918
![](http://www.sowp.org/wp-content/uploads/2019/02/LR-1102051902-NAJ-Radio-Tower-768x561.jpg)
View of Radio Tower at NAJ, Great Lakes, IL, ~1918
![](http://www.sowp.org/wp-content/uploads/2019/02/LR-3208121807-9ZN-Unknown-Tuner-768x582.jpg)
Receiver at Ralph Mathew’s 9ZN in Chicago
![](http://www.sowp.org/wp-content/uploads/2019/02/LR-3208121809-9ZN-with-Early-Transmitter-2-768x993.jpg)
Transmitter at Ralph Mathews 9ZN in Chicago
![](http://www.sowp.org/wp-content/uploads/2019/02/LR-3208131803-WJAZ-Pikes-Peak-2-768x981.jpg)
Zenith Portable Station WJAZ Near Pike’s Peak, CO
![](http://www.sowp.org/wp-content/uploads/2018/08/LR-3208131801-WJAZ-Nevada-Desert.jpg)
Zenith Portable Broadcast Station WJAZ in Nevada Desert, 1925
![](http://www.sowp.org/wp-content/uploads/2018/08/LR-3208131802-WJAZ-Pikes-Peak-1.jpg)
WJAZ Set-up at Pike’s Peak, 1925
![](http://www.sowp.org/wp-content/uploads/2018/08/LR-3208131803-WJAZ-Pikes-Peak-2.jpg)
The “Gang” at Pike’s Peak: ‘Allen, Ross, Wagner, RHGM’
![](http://www.sowp.org/wp-content/uploads/2018/08/LR-3208131804-WSAX-and-Lion.jpg)
WSAX First Broadcast of Lion’s Roar, LA, 1925: “RHGM scared, in foreground”
![](http://www.sowp.org/wp-content/uploads/2018/08/LR-3208131805-WSAX-New-Mexico-Desert.jpg)
WSAX in New Mexico: “Broadcasting each night from wherever we were”
![](http://www.sowp.org/wp-content/uploads/2018/08/LR-3208101802-Mathews-at-9ZN.jpg)
RHG Mathews at His Station, 9ZN, Chicago, 1921
![](http://www.sowp.org/wp-content/uploads/2018/08/LR-3208121801-9IK-1911.jpg)
Mathews’ First Station, 9IK (Originally RM) in 1911
![](http://www.sowp.org/wp-content/uploads/2018/08/LR-3208121802-9IK-9ZN-Chicago.jpg)
Original 9IK, 1316 Carmen Ave, Chicago, later 9ZN at 5552 Sheridan Rd, Chicago
![](http://www.sowp.org/wp-content/uploads/2018/08/LR-3208121803-9ZN-First-Antenna.jpg)
First Antenna for 9ZN, Chicago
![](http://www.sowp.org/wp-content/uploads/2018/08/LR-3208121804-9ZN-Tower-Antenna.jpg)
9ZN Antenna Tower
![](http://www.sowp.org/wp-content/uploads/2018/08/LR-3208121805-9ZN-Antenna-Tower-2.jpg)
9ZN Antenna Tower 2
![](http://www.sowp.org/wp-content/uploads/2018/08/LR-3208121806-9ZN-Transmitter.jpg)
US Navy Transmitter
![](http://www.sowp.org/wp-content/uploads/2018/08/LR-3208121807-9ZN-Unknown-Tuner.jpg)
9ZN with Unidentified Tuner and Audion Detector
![](http://www.sowp.org/wp-content/uploads/2018/08/LR-3208121808-9ZN-with-Early-Transmitter-.jpg)
9ZN with Early Transmitter
![](http://www.sowp.org/wp-content/uploads/2018/08/LR-3208121809-9ZN-with-Early-Transmitter-2.jpg)
Another View of 9ZN with Early Transmitter