home ‹ network ›  builders   FAQs  Search

working, on-the-air TARPNs

CNCNC: Central North Carolina Networking Consortium - we meet a few times a year at Brier Creek Brixx Pizza

Click to embiggen

PA: KC3IBN and friends have been building a TARPN


Central North Carolina Network Status as of December 6, 2018:
  • December 6, 2018
    • KN4ORB, Aaron, joined us with a 6m link to TADD. Aaron has an Austinantennas GP52 1/4 wave antenna hanging in a tree at 50 feet.
    • K4DSP, Doug, decided not to proceed. Mark KM4JRH is taking over his link to TILL. The plan is that Mark will do the link to FIN on 927 and also a 2m link to W4EIP.
    • W4EIP and KM4JRH are working on antennas to do their link.
  • November 26, 2018
    • KEN:AC4RD is back in the network via DANIEL but the FIN-DANIEL link is not working well. There is some possibility that RF noise ingress is bugging the link.
    • K4DSP, Doug, is running a demo node off of TILL node. If all goes well, that will become a 927mhz link from FIN to HALL:K4DSP.
  • November 11, 2018
    • MARKDM is working pretty well though we'll want to address this by Spring when leaves come back
    • DAVE:W4EIP and DANIEL:AG4DB are in the network.
    • W1KES is not in the network anymore.
    • GREG is looking to link to either KN4ORB or KM4IFU. Hopefully by Christmas
    • KEN node will be testing against DANIEL real soon.
    • ADAM is back in the network.
  • September 24, 2018
    • ADRO to ANOIA is back up
    • ANOIA has a 147.555 radio on the omni now, to link to MARKDM:KN4BTI, and 144.45 is linking to SKIP via a 4-element yagi
    • MARKDM is now on the air though link quality wasn't great. We'll try a different radio in a week.
    • SNELL is moving to Fuque Varina. He's actually in range of KK4QMB.
    • TILL to TADD is moving from 2m to 900Mhz. This will free up the 5-el 2m yagis at both sites for future links
  • August 18, 2018
    • DOUG to GREG is up
    • ADRO to ANOIA died. We don't know why yet. It's a good thing we now have ANOIA - SKIP - CHRIS - FFVC - ADRO as a backup.
  • July 26, 2018
    • CHRIS-to-SKIP is up on 441.025
  • July 19, 2018
    • CHRIS node is up with 1 link. Link CHRIS-to-SKIP may happen.
    • GREG was up and testing. Hopefully he'll be back. GREG links to DOUG.
    • DOUG node is on. He'll be linking to GREG
    • ADAM KM4DLS is off, hopefully for not very long.
    • We're working on nodes at GREG, DANIEL, MARK, KEVIN, SCRCCO.
    • There is thunder in the west. People are talking about starting one or more TARPN hatchlings in High Point through Boone.
  • June 9, 2018
    • ADRO is back
    • TILL now has 3 links, to FIN, VON and TADD
    • DOUG node is on. He'll be linking to GREG
    • ADRO site antenna is back up.
    • AC4RD:KEN is disconnected -- foliage killed the link. DANIEL node will serve in the middle when it comes on.
  • March 31, 2018
    • SCOTT off the air. Hasn't come back
    • GREG temporarily off the air.
    • VON is linked to TILL
    • ADRO site having antenna problems for a couple of weeks. Expected back after RARSfest.
    • AC4RD:KEN is on the network connected to TADD.
  • January 12, 2018
    • VON to TADD moved to 433.7Mhz
    • TADD to GREG added on 144.41
  • October 15, 2017
    • ADAM node is connected to FFVC node on 433.
    • SCOTT node temporarily offline due to in-house remodeling work
  • July 09, 2017
    • ANOIA is now linked to SNELL on 6m.
    • We're planning to replace VON to TADD with 433Mhz.
  • June 17, 2017
    • SCOTT node is up with 3 radios on 4 ports. 50.97 is linked to FFVC, and 145.75 is linked to SNELL.
    • I've decided that multipath is a big problem when working with Omni vertical antennas. The link from VON to TADD and VON to FIN on 2m were both plagued with multipath. Now I think the problem is that there is a water tower just hundreds of feet away from VON node and the path from the VON antenna up to the water tower and over to FIN or TADD is as good as the non reflected path. Our solution is going to be to move VON to TADD to a pair of 10 element beams on 433Mhz. That should fix it.
  • March 27, 2017
    • SKIP node is up with two ports. 144Mhz to ANOIA and 51Mhz to BRYAN
  • March 25, 2017
    • ANOIA node is up with two ports, 440Mhz to ADRO, and 145Mhz to SKIP
    • FIN and TILL link is now at 7% or so.
    • SCOTT node is coming soon. That will link into FFVC and bring SNELL back in the network.
  • March 5, 2017
    • K4RGN, TILL, has a new dual band corner reflector beam aimed at FIN. This improved the situation. We're at 15% retry rate now and working on a radio replacement, aiming at < 5% retry rate.
    • JENRET is off permanently. W4JSK:SCOTT node, coming soon, will take over the link to SNELL
    • FIN to AARON is working mighty well now. FIN bought a 4-element yagi to link to AARON and this made a big difference. Aaron KF4EZU did some work on the 6m radio at his end as well.
    • HANK node is going off the air. FFVC is now directly linked to VON node. HANK equipment will end up in another node shortly.
    • ANOIA:KW4KZ is still coming soon. Chuck has his GP15 up 80' in a tree and has tested it by talking directly to Billy KE4VNC on 2m. He also was able to talk to FFVC and easily hear ADRO. The plan is to tie ADRO to ANOIA on 440, and SKIP to ANOIA on 2m. Then ANOIA may use 6m to talk west, possibly to KJ4OLI in Efland.
    • John, N4RMV, is looking to establish a node in Archer's Lodge, Johnston County. Billy KE4VNC is working with him on antennas.
  • October 22, 2016
    • TILL node got a new antenna. This should improve the FIN to TILL 440 link.
    • FIN node got a new antenna for 6m FIN to AARON link, but that didn't help it enough. So Fin, NC4FG, got an even better 6m antenna. 4 element Arrow 6m yagi. Not up yet.
    • W4AUV. Dale, said he'd have a node if somebody wants to help with it. Dale's site would make a great midpoint and alternate path to the now weak AARON to FIN link. The idea is to link Dale with AARON on 2m and TILL on 70cm.
    • KA2DEW put up a node at work called FFVC:KA2DEW-3 in RTP. That is linked to ADRO and to HANK.
    • DAVIS is off the air entirely. Charlie says he'll be back but he's repairing antennas on his tower.
    • ANOIA:KW4KZ is completely assembled except for stringing a tree. It turns out that node cannot talk to SNELL but it can talk to SKIP and ADRO. We're going to link them up.
    • VON to FIN never worked very well so we moved it to VON to TADD.
    • FIN 2m can now be used to expand, hopefully we can get a station in Cary to link to FIN
    • JENRET node, maintained by ka2dew, is off the air, maybe due to stress-broken coax. The run was hanging in free space for quite a distance. Bad
  • June 5, 2016
    • TILL node is up.
    • ANOIA:KW4KZ node is coming soon.
    • We're going to delete the 440 link from SKIP to ADRO and instead put CHUCK in the middle.
    • DAVIS to BILLY link is off the air, temporarily. WA3UTC:DAVIS took a lightning hit. It didn't hurt packet, but Charlie, WA3UTC, borrowed the packet node's coax to restore HF functionality
    • ANOIA:KW4KZ is also in range of SNELL so that may give us a complete loop.
  • March 29, 2016
    • AARON node is up. FIN to AARON on 50.99 horizontal and AARON to BILLY on 431.1 vertical, soon to be horizontal. Welcome AARON!
  • March 20, 2016
    • Billy started working on a new plan for his link to FIN. The 6m link from BILLY to FIN has been unreliable. The new plan involves getting a new site AARON:KF4EZU-2 on the air at Knightdale. Welcome Aaron. The 6m link moves from BILLY to FIN over to AARON to FIN. AARON to BILLY is short range and can be done on 440. Hopefully that will be running in March. However, for much of January and February the BILLY site was completely off-line, breaking the network into two pieces. As of Feb 29th, BILLY is back up in the old capacity of linking to FIN and to DAVIS.
    • SAM:KM4WUF joined us with a 440 link to TADD. Welcome Sam!
    • VON:AI4WV - name Steve - joined us with a 2m link to FIN. Welcome Steve!.
    • HANK node is on-the-air linked into VON. Welcome Hank!
    • KEITH:W1KES joined us with a 2m link to ADRO. Welcome Keith. Keith is working with Chuck KW4KZ north-west of Durham, to do a 6m link between the two.
    • We have lost ERECH and BRYAN, at least for the moment.
  • Oct 11, 2015
    • Adding 4th port to ADRO to support KEITH node. JOE, KEITH, DOUG, CHUCK testing simplex paths and acquiring parts.
    • WILSON acquiring parts. ADRO node rebuilt into Skip-box.
  • Oct 1, 2015
    • FIN to BILLY now reliable due to change of frequency and away from a noise emitter on 6m and improved antenna and RF susceptibility on both ends.
    • FIN to TADD now moved to 220 to eliminate in-band interference at TADD. This frees up the 2m rig at FIN.
    • As soon as we can we're moving the 2m link ADRO to DAVIS to 144.31 from 144.35. 144.35 is apparently co-opted for a Chinese satellite uplink.
  • Aug 30, 2015
    • Added FIN site. Link from TADD to BILLY replaced by TADD to FIN and FIN to BILLY
    • THEDON is up but we stole his 2m link at BILLY and will be moving THEDON over to BILLY or to DAVIS.
    • SCOTT and JEFF are now on-line but BRYAN got hit by lightning. That should be back on shortly. The lightning hit his dipole and killed the HF rig and the Raspberry PI.
    • We're working on links west from ADRO and SNELL to eventually make a loop of the network, providing decent robustness. Dave, W4VU has a node up west of Burlington that will hopefully be connected as part of the western plan.
    • Everybody on the list below has acquired Raspberry PI and TNC-PIs so they can connect to our network. Some are working on antennas, others waiting for a neighbor to tie into.
site neighbor freq quality radio antenna miles

KA2DEW:TADDnorth RaleighApril 2014
FIN 222.32 working Kenwood TM3530horizontal yagi3
NATHAN440.075excellentKenwood TM401B MFJ 1532N omni0.3
VON 433.7 working Kenwood TK805 10 el horz yagi1.5
TILL 927.2 excellentKenwood TM981 7 el loop yagi1.5
DOUG 147.555excellentKenwood TM221 Diamond A144S5 horz yagi1.1
AARONL51.12workingVertex FTL-1011Comet GP15 in tree6

KE4VNC:BILLYWendelSeptember 2014
AARON 433.2 excellentKenwood TK862 10 el horizontal yagi6.4

KM4DVE:NATHANnorth RaleighNovember 2014
TADD440.075excellentKenwood TM401B3-el yagi0.3
HECTOR51.12futureVertex FTL-1011vertical dipole6

KV7D:ADRO Blackwood NC
(near i40 and Chapel Hill/Hillsborough line)
January 2015
MIKE 51.10 future Vertex FTL1011GP15 vertical omnivariable
FFVC 144.33 excellent Kenwood TK760HGP15 vertical omni14
ANOIA446.05 excellent Kenwood TK862GGP15 vertical omni9

N6LUZ:SKIPnortheast Chapel HillMarch 2015
CHRIS441.025workingKenwood TK805d/td>11 el vertical yagi5
avail???future Vertex FTL-1011V2000A vert omni??
ANOIA144.45working Kenwood TK762HV2000A vert omni11.5

NC4FG:FINnorth RaleighAugust 2015
DANIEL145.75future Kenwood TK705d5 el vert yagi 9
AARON 50.99excellentVertex FTL1011horizontal 4 el Arrow yagi12.7
TADD 222.32excellentKenwood TM3530horizontal yagi 3
TILL 445.55excellentKenwood TK862G5 el vert yagi 2

AI4WV:VONnorthwest RaleighFebruary 2016
TADD433.7 workingKenwood TK805dHorizontal Diamond A430s102
FFVC446.025workingKenwood TK8626 el vert yagi8

KF4EZU:AARONKnightdaleMarch 2016
FIN 50.99excellentVertex FTL-1011Horizontal Moxon 12.7
BILLY433.2excellentKenwood TK840Horizontal Diamond A430s106.4

K4RGN:TILLNorth RaleighJune 2016
FIN 445.55 excellentKenwood TK862GArrow corner reflector2
TADD927.2 working Kenwood TK9817 el vertical yagi2
>>>144.31 futureMaxon SD125vDiamond A144S5 horz yagi?

KA2DEW:FFVCResearch Triangle ParkOctober 2016
ADRO 144.33 workingKenwood TM221 4 element Arrow yagi14
CHRIS147.525workingKenwood TK762HComet GP15 omni3.4
VON 446.025workingKenwood TK862G5 element Cushcraft yagi8
ADAM 443.75 offlineKenwood TK862GDiamond A430s107

KW4KZ:ANOIAEno TownshipNovember 2016
MARKDM147.555intermittentKenwood TK760 Comet GP15 omni vertical15
ADRO 446.05 excellentKenwood TK862 Comet GP15 omni vertical9
SKIP 144.45 excellentKenwood TK762H 4 element vertical yagi12
future50.99 future Vertex FTL-1011Comet GP15 omni vertical??

W4VU:DAVEPwest Burlingtonexperimental stage
December 2014

KM4DLS:ADAMwest CaryOctober, 2017
FFVC443.75offKenwood TK862GDiamond A430s107

N3LTV:DOUGnorth RaleighMay, 2018
TADD147.555workingKenwood TK762GDiamond A144S5 attic horz yagi1.1
GREG144.33workingKenwood TK762GDiamond A144S5 attic horz yagi3
DAVE433.25workingKenwood TK805dvertical corner reflector1

KK4VBE:CHRISsouth DurhamJuly, 2018
FFVC147.525workingKenwood TK762Hhome-made 1/4 wave attic3.4
SKIP441.025workingKenwood TK862G6 element vertical yagi5

N4IPO:GREGnorth RaleighJuly, 2018
DOUG144.33workingKenwood TK862GDiamond A144S53
ERECH433.3 futureKenwood TK805dDiamond A433S103

KN4BTI:MARKDMMebaneSeptember, 2018
ANOIA147.555workingTK760HVert Hygain 5-el15

AG4DB:DANIELeast RaleighNovember, 2018
FIN145.75intermittentKenwood TK762Vert HyGain 5-el8
KEN51.18 workingVertex FTL-1011Horz Maxon9

W4EIP:DAVEnorth RaleighNovember, 2018
DOUG433.25futureKenwood TK805dvertical corner reflector1
KILMER433.25workingKenwood TK805dvertical corner reflector1

AC4RD:KENSouthwest RaleighApril 2018
DBURT144.43futureIcom IC2100 Vert HyGain 5-el5
DANIEL51.18workingVertex FTL-1011Horz 3 el yagi 9

KN4ORB:AARONLnorth RaleighDecember 2018
TADD51.12workingVertex FTL-1011Arrow 1/4 ground plane in tree6

KM4JRH:KILMERnorthwest RaleighDecember 2018
TILL144.31temporaryKenwood TK762dual band vertical omni2
DAVE144.43futureKenwood TK760Hdual band vertical omni2
FIN927.2futureKenwood TK981vertical yagi1

Frequencies in use or planned in our capital area network.
See freqs for packet for info about available frequencies.
6 meter band 50.97 FFVC to future vertical omni
50.99 SNELL to ANOIA8 miles vertical omnis
50.99 FIN to AARON 13 miles 4-el horz to moxon
51.10 ADRO to MIKEvariable range omni to omni
51.12 TADD to AARONL6 miles vertical omnis
51.18 KEN to DANIEL9 miles horizontal yagis
2 meter band 144.31 Greensboro area - DX spotting??
144.31 TILL to pts southvertical corner reflector
144.33 ADRO to FFVC20 miles, high omni to 4-el vertical yagi
144.33 DOUG to GREG3 miles, horizontal indoor yagis
144.35 Chinese Satellite 144.35
144.37 DAVEPtesting
144.39 A.P.R.S. digipeaters
144.41 unusedunused
144.43 KILMER to DAVEvertical omnis, 2 miles
144.43 KEN to DBURTvertical yagis, 5 miles
144.45 SKIP to ANOIAvert 20' omni to 4 el yagi
144.91 unusedunused
145.01 claimed by NC ARES
145.03 claimed by NC ARES
145.05 claimed by NC ARES
145.07 claimed by NC ARES
145.09 claimed by NC ARES -- used in Johnston CO
145.73 KEN to DAVIDB4.5 miles, vertical yagis
145.75 FIN to DANIEL11 miles, vertical yagis
145.77 auto-Morse-ID heard in north Raleigh July2015
145.79 too close to International Space Station freq.
147.525CHRIS to FFVC3.4 miles vertical omnis
147.555TADD to DOUG1.1 miles, horizontal yagis
147.555MARKDM to ANOIA15 miles, vertical yagi to vertical omni
1.25m band 222.30 222.0->222.3 is weak signal portion of the band
222.32 TADD to FIN3 miles, 20' horz yagis
70cm band 433.2 AARON to BILLY 6.7 miles 24' horz 10el yagi to 10el yagi
433.25 DAVID to DOUG 1 miles vertical corner reflectors
433.3 GREG to ERECH 2.5 miles 10 el horz 10el yagi to 10el yagi
433.7 VON to TADD 2 miles 10 el horz 10el yagi to 10el yagi
433.75 FFVC to ADAM 7 miles 40' vert yagi to yagi
440.075TADD to NATHAN .5 miles, 20' vert to yagi
441.025SKIP to CHRIS 5 miles, 20' vert 11 yagi to attic 6 yagi
445.45 unused
445.525unused ??
445.45 FIN to TILL 3 miles, 20' 5 el yagi to 20' corner reflector
445.575unused ??
445.600unused ??
446.025FFVC to VON 5 miles, 12' 10el vert yagi to 35' omni
446.05 ADRO to ANOIA 9 miles, 70' vert to 70' vert
© Tadd Torborg, 2014↝2018 -- all rights reserved