Exciting times in soft modem development
The active and exciting development of the sound card soft-modem terminal node controller modulators/demodulators will help us continue to raise the throughput of our AX.25 connections as new releases arrive.
TNC
Terminal Node Controller
Packet Radio Reprise?
Is packet radio enjoying a revival? The continuing availability of traditional gear plus a surprising list of brand new TNC equipment suggests it may.
UHF BNC N Connector Return Loss Compared
A savvy ham performs testing on the UHF Connector and compares with BNC and N connectors.
KX4O 1B-Battery VA Field Day 2015
Despite a weak battery and few contacts, our 1B-Battery effort verifies a 40m small-loop and packet-radio NTS messaging using quick deploy antennas.
‘UHF’ Connector Test Results
Real measured data reveal the UHF (PL259 and SO239) connectors have real limitations.
Lab Tests: SMA, BNC, TNC and N Connectors
Lab tests show post WW2 connector designs perform exceptionally well up to 500 MHz. The SMA, BNC, TNC and N connectors are great.
PL-259/SO-239 Return Loss and Attenuation Test
We pit the PL-259 (and SO-239) against more recent connectors. This is the list of contenders plus a description of the test setup.