K1IFF NXDN Amateur Repeaters (updated 7/28/2013)
Kenwood repeaters and associated equipment provided by Northwest Communications, Harwinton, CT.
Avon, CT mixed mode, both NXDN 6.25 kHz "very narrow" (4K00F1E) or NFM - 12.5 kHz (11K0F3E)
Output 449.98750 - PL141.3/RAN 21, Input 444.98750- PL141.3 /RAN 21
Bristol, CT mixed mode, both NXDN 6.25 kHz "very narrow" (4K00F1E) or NFM - 12.5 kHz (11K0F3E), system phase locked to a GPSDO.
Output 449.97500 - PL162.2/RAN 22 (Local**), RAN 01 GID 65000 (link with WW/NXDN network),
Input 444.97500- PL 162.2/RAN 22 (Local**), RAN 01 GID 65000 (link with WW/NXDN network)
Output 146.5925* - RAN01, "very narrow" (4K00F1E) mode only
Input 147.5925* - RAN 01,"very narrow" (4K00F1E) mode only
November 30, 2012- Another historic event? Licensed for 80 years, CT ham makes debut on NXDN WW net
Al, W1FXQ from Newington, CT held brief QSOs with Alan, W7QO in Atlanta, GA, Gus, KR4K in Johnson City, TX and Rick, WB9HKE in Milwaukee, WI on the WW-NXDN system via the K1IFF UHF Bristol, CT NXDN repeater shortly after 1110 EST. Al's QTH at the time of the QSOs was located about 0.2 mi due south from League HQ, with W1AW's towers in sight. He was using a Kenwood NX320 portable, running 5W. An mp3 file of the QSOs was created by Rick, WB9HKE, in Milwaukee, WI.
Al received his operator's license at the age of 14 in December of 1932, and his W1FXQ station license in March of 1933.
October 31, 2012 - NXDN US systems connect to Ankara, Turkey NXDN system
Another milestone today was reached at 1300 EDT, when KD4EFM (Evans) saw the first evidence of an operational NXDN link (TA3AS/2 'alias' on his radio's display) to Turkey via the internet. A few minutes later, Alan (W7QO) had an initial QSO with Tahir (TA2T), and Cliff (K1IFF) had a brief QSO with Tahir and Serdar (TA3AS) from their club's headquarters using a newly-installed Kenwood repeater and portables.
While there are still some radio and Group ID issues that need to be ironed out, the QSOs represent the first-ever transcontinental NXDN amateur radio QSO, and the connection made to Kenwood repeaters without the use of a VPN.
Please welcome our Turkish friends to the growing WW NXDN network.
October 18, 2012 Icom and Kenwood NXDN systems together in digital mode
Yet another milestone was reached in the evening of October 18, 2012, when Alan (W7QO) managed to create a functional digital link between the Kenwood repeater systems currently tied to the internet via VPNs, and the Icom repeater systems also using the net without VPNs. While there are still some issues that need to be ironed out, the basic operation of the linkup is working. Follow Alan's work on this exciting project here.
October 14, 2012 Progress continues on linking Icom and Kenwood NXDN systems together
Another milestone was reached in the development of a process to connect the two different internet protocols used by Icom and Kenwood to create a global NXDN-based repeater network. W7QO (Alan), who has been working on the code used to translate both protocols to be conversant between each other, successfully tested one portion of his code. Using the K1IFF/R (Bristol, CT) UHF repeater temporarily set up as a test site, audio was passed from the UHF repeater to Alan's test hub/setup in GA,"reflecting" it back up to and out over air on the K1IFF/R VHF repeater currently under construction. For more information on this project's progress, follow Alan's work here.
October 4, 2012 - Construction begins on K1IFF/R VHF system
Construction began on installing a VHF NXDN Kenwood repeater to complement the UHF system currently on the air. Tentatively it will be on 145.22/144.62 and initially in mixed mode while tests are being conducted. When the system is fully operational, it will likely be in digital-only mode, RAN01, very narrow bandwidth, to avoid interfering with adjacent channel wideband FM users. Tests are being done from the site using low power (5W). Stay tuned for more updates as warranted.
September 30, 2012 - Third NXDN link established to KR4K/R VHF/UHF in Johnson City, TX
At 2323 EDT, KR4K/R joined the NXDN Kenwood network, tied to N4KEG/R in Lakeland, FL. and K1IFF/R in Bristol, CT. Took some firmware updates and repeater changes, but a brief 3-way QSO was held between Gus, Evans (KD4EFM) and Cliff (K1IFF) to formally mark the milestone. All 3 reported 59 signals, "DFQ":-). Welcome to the network, Gus!
August 20, 2012 - First transcontinental/international link using NXDN technology
At 7:02PM, Pacific Daylight time, August 20, 2012, the first successful NXDN trans-continental, international cross-border QSO took place between PJ Van Baggen, VA7NY on the VE7NYE repeater in Vancouver, Canada, and Alan Adamson, W7QO from his repeater in Atlanta GA, a distance of approximately 2,240 miles. Both repeaters are Icom IC-FR6000/UCFR5000 operating on the 70cm band.
At 7:22PM, PDT, the furthest QSO to date via NXDN was made into Tampa, FL between PJ, VA7NY and Paul, NB9X - a distance of almost 2600 miles!
Listen and watch the actual QSO's with this link --> http://youtu.be/tpUXU84S7g8
June 12, 2012 - First interstate ham link with NXDN, internet technology
The K1IFF Bristol CT repeater (449.975000) successfully linked to N4KEG/R in Lakeland, FL at 1007 EDT. This was the first known amateur radio, internet-linked, interstate NXDN-based (Kenwood NXR) system made functional.
Functionality was made possible through the networking efforts, perseveranceand expertise of KD4EFM and WA1LMV, who held the first QSO between the two repeater systems. Note that this link is only functional in the digital mode, with RAN60.
Work is underway to try and link the Kenwood boxes to Icom NXDN boxes, and to attempt the first intercontinental link.
Last modified: 2013-11-05 00:06:14, 15973 bytes cached
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