What is simplex? When we use the term simplex, we’re talking about radio to radio communication directly, without using a repeater.
Why should we care about simplex? We know there is always the possibility of an emergency which can make normal communication systems inoperable. This might include telephone, internet and local VHF/UHF repeaters. Similarly, such an emergency can result in any or all of these systems becoming overloaded with traffic. In either case, Simplex may be the only option available for communication and passing of messages.
The Central SC CARC Simplex Net exists to provide an opportunity to learn and practice simplex skills. If local repeaters are out of service, who would you be able to contact and who could contact you? We certainly don’t want to wait until an emergency to find out.
This net is conducted on the 1st and 3rd Wednesdays of each month at 7:30 PM on frequency 146.400. All licensed operators are welcome and encouraged to participate.
Important things to keep in mind for simplex:
Depending on your location and station characteristics, you may not hear anyone immediately at the start time of the net. After 15-20 minutes into the net, if you still have not been able to hear a net control station (NCS), please make a call to see if anyone on frequency can hear you. If they can, ask them to relay your check-in.
You’ll need to keep the squelch on your radio turned way down so that you are able to hear distant and/or weaker stations.
Without the benefit of a repeater, simplex net participants may or may not be able to hear one another. As a result, “doubling” (two or more stations trying to check-in at the same time) can be more likely. We fully expect this to happen occasionally. Please be persistent and keep trying until your check-in has been acknowledged by a net control station, or a relaying station.
If you can hear someone else struggling to check-in or get acknowledged by the net control, please help by providing a relay to net control.
Every effort will be made to run Netlogger during this net. You can follow along and use the AIM chat feature to add comments, etc.
Lastly, if you know someone else who is interested in learning/practicing simplex, please encourage them to participate in this net.
Net Control Rotation Schedule
|Date||Day||Net Controller Station|
|5/19/21||3rd Wednesday||KN4KRZ, Mark|
|5/26/21 Quarterly Simulnet||4th Wednesday||KN4KRZ, Mark|
|6/2/21||1st Wednesday||WD4NG, Dan|
|6/16/21||3rd Wednesday||KC4UAL, Steve|
|7/7/21||1st Wednesday||KD4HDR, Russ|
June 26-27 ARRL Field Day
ARRL Field Day is the most popular on-the-air event held annually in the US and Canada. On the fourth weekend of June, more than 35,000 radio amateurs gather with their clubs, groups or simply with friends to operate from remote locations. Field Day (arrl.org)
Thursday evenings @ 8:30 SC Midlands ARES Net
To get involved in the South Carolina’s Midlands ARES, join this group and join us for our weekly MIDLANDS ARES Training Net at 8:30pm on Thursdays at 444.875, Positive offset with a 91.5 Tone. Additional information is available at the Facebook page for “SC Midland ARES.”
Sunday evenings @ 9:00 Ridge Amatuer Radio Club
Ridge Amateur Radio Club 9pm simplex net 146.550 then moving to the 147.255 + 123.0 repeater then moving to 10m 28.360