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Present activities centered around experimenting with NXDN technology in amateur radio.

K1IFF NXDN Repeaters - all "very narrow" (4K00 b/w - 6.25 khz channel spacing), short (500 msec) TX tails, some mixed mode

Kenwood repeaters and associated equipment & resources provided by Northwest Communications, Harwinton, CT.

On - Bristol CT   449.975000 - 5m, RAN 1 WW (GID 65000), RAN22 local (no GID), GPSDO locked, analog, PL 162.2, narrowband (11K0) FM

On - Avon CT   449.987500 - 5m, RAN 21, not on WW at this time, analog, PL 141.3, narrowband (11K0) FM

On - Bristol, CT  146.592500 +1m, RAN 1, not on WW at this time

Off - Portable/Bristol, CT  Output 144.501325, Input 147.996875, RAN1, (experimental, low power portable, under test)

Off - Portable/Whitefield, NH (local) 449.987500 - 5m, RAN 1, on WW network

Off - Portable/Fuquay-Varina, NC (local) 449.987500 - 5m, RAN 1, on WW network

More repeater information & links below.

NXDN amateur repeaters

Another map of NXDN repeaters

K1IFF/1 - "DX"pedition - Northern NH - Aug 2014

Picture shows HF portable operations in Whitefield, NH, late Aug 2014.

Antenna installation consists of shooting a 3 oz lead fishing sinker, using 10lb monofilament fishing line, into the top of the 90' pine tree using a slingshot. 10lb line hauls up a 30lb line, which then hauls some cable pulling tape connected to the antenna. Antenna slopes about 30 degrees.  Ends are secured with bungee cords to cushion stress during high winds.

End-fed with SGC231 (or 237) tuner on roof of cottage.  Obviously, not very efficient - no match for lots of aluminum in the air - but it works.  Rig is Icom Pro2 barefoot (100w). Active times (EDT) - daytime on 17, late afternoon 7262, eves 3990+- QRM/N.

Also operational in NH until 9/5/2014 on the NXDN WW network, using an NXR810 and some portables, local-only coverage on 449.9875, RAN1.

We go QRT on HF from up here on 9/4.

73, gud DX, and tnx to all who we've been able to work from here.

/cliff, k1iff/1


1651881 Last modified: 2015-01-30 14:33:07, 6239 bytes

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