Hi, John, It may be the case that the 680 repeater wasn't fully linked. I'm getting a yagi so that I can direct more energy into the Downtown repeater directly. Hopefully that will allow me to more re

John, et. al., Yes, we should have a Windward simplex net. I'm in Kaneohe just mauka of Windward Mall. Also, feel free to join us the first Wednesday of the month at 8 PM for the Windward Emergency Co

I've written about digital signaling: including Frequency Shift Keying (including RTTY), Phase Shift Keying (PSK31 for example), Quadrature Phase Shift Keying (QPSK), and Quadrature Amplitude Modulati

In SET 2019 some Windward Hams demonstrated networking functions of APRS and geographical situational awareness, not of an enemy's location, but of road obstructions. Some in EARC built an inexpensive

ALE frequency hopped link establishment Windows software can be found at http://hflink.com/software/ Multipsk has ALE-400 for fixed frequency link establishment. It simulates a full-duplex link. VARA

Note the reference to HF for local communications! ---- In an online presentation to the Association of Old Crows on Aug. 6, Paul Denisowski, KO4LZ, described how communications satellites are vulnera

Thanks, Steve, Here's what I see from http://www.hamradiohawaii.com/oahu That Diamond Head location makes sense because from some "sweet spots" at which I can "hit" the Diamond Head APRS digipeater, K

Hello, Are there any nets hosted on the NH7ZD 220 MHz repeater near Diamond Head? Thanks! Craig/KH6CP

Configure the radio for FM use (VHF/UHF) and push 1 button to "go digital". The entry level radio sells for $155 (DX Engineering) FM/YSF Yaesu FT-70dr Craig/KH6CP

Hi, Tim, I'm only aware of a single 220 MHz repeater on island and I haven't tried to use it yet. It's in the vicinity of Diamond Head. Look for NH7ZD on the map. http://www.hamradiohawaii.com/oahu I

If you're not interested in digital voice on FM, delete this message now. A few of us on Oahu had QSOs yesterday. We enjoyed digital's clarity and superior reach, compared to other digital modes. The

Hi, Dave, Evan and I had the simplex QSO, exercised Group Mode (GM), and tested powers. I was using 1 watt and the Yaesu FT-2dr's "rubber duck" antenna. I was 5 feet below the terrain with some modera

Thanks, Evan! See you on-the-air at 9. DG-ID 00. Shall we coordinate via the 147 repeater? Craig

Yaesu USA suggests a YSF simplex QSO day April 25th using the world-wide VHF frequency of 145.5625 MHz. (Yes, you have to change your frequency step to 6.25 kHz.) Any takers? I'm on the Windward side!