08/22/2011
2100 hrs
Subject: Cherokee County GA ARES conducts special multi-county test net
A special ARES test net was called at 2000hrs by Cherokee County, GA ARES to test multi-county communications on VHF simplex/cross-band (Woodstock GA-WB4NWS station), and two separate mountaintop repeaters (Mt. Oglethorpe-Jasper, Pine Log Mtn-Waleska), located 20 miles apart in separate counties (Pickens, Cherokee), all on emergency power.
The test was notified to multiple recipients in Metro Atlanta District ARES and Northwest GA District, via email (with about 3 hours notice) to test cross county communications and even outside the State of GA. The event was a simulated ice storm (October 2011 SET scenario). The notice was also published on Twitter and GA-ARRL Facebook page (thanks Robert Tyler and Mike Brown).
At 2000hrs, the net was initiated by Juan Quiroga, WW4WX, EC-Cherokee County, GA. on 145.430 WB4NWS repeater, located at 3100ft on Mt. Oglethorpe. After all check ins were taken and traffic passed, the net was moved to cross band repeat of VHF simplex (147.585 located in Woodstock, GA) to UHF 443.075 Cherokee ARES repeater (located on Pine Log Mtn, Waleska, GA at 2300 ft). This was to simulate a repeater at one site to fail (due to ice/wx taking down antenna) and all communications switching to simplex cross band to continue cross county communications at another repeater site. As a note, both the WA4EOC and WB4NWS repeaters have emergency backup power, as well as WB4NWS cross band repeat location.
The results were quite favorable (12 counties, 2 States) considering the short notifications and distances. A total of forty-one (41) hams in twelve (12) counties checked in, eleven (11) counties from Georgia and one (1) in Bradley County, Cleveland, Tennessee (John-N4AOW). 35 hams in twelve (12) counties checked in on the 145.430 Mt. Oglethorpe Repeater with the farthest contacts were Charles-WA4UJC and Greg-KI4NWD 75 miles away in Newton County. John-N4AOW was about 65 miles line of site from Cleveland Tenn. The other counties were: Bartow, Cherokee, Cobb, Dekalb, Fulton, Gilmer, Gordon, Lumpkin, Newton, Paulding, and Pickens counties. What is amazing is when we switched to simplex cross band, 27 hams were still able in 11 counties to check in, including John in Cleveland, Tn., to Jim’s cross band in Woodstock (about 70 miles, no extra help from conditions). At least 5 folks were on HT’s, one mobile, with one HT operating on 1 watt at a distance of 33 miles to the repeater! (ok so the UHF repeater does have a receiver pre-amp, but still impressive).
While it is understood not everyone has advantages of 2300 and 3100 ft mountaintops for repeaters, at least one common ground we share is a cross band repeat set up at one ham’s QTH (like Jim-WB4NWS Woodstock location), certainly can help in emergency conditions. So, I am sure every EC has identified which member has the best cross band location for their county and can activate quickly. Planning is an integral part of any successful ARES emergency communications and testing in advance to ensure messages can be sent/received, not just on HF, but on VHF, UHF, CW, Voice, and Digital, is mission critical. Plan, Test, Activate. The October SET will test cross county and State communications, so be prepared for anything.
Thanks to everyone who took the time to test with this special net. Attached is the check in list for reference. 73′s,
Jim Millsap-WB4NWS
DEC-Metro Atlanta District
DEC-Metro Atlanta
CLICK HERE FOR CHECK-IN LIST