BOB, the battery operated “beacon” for APRS
I built a prototype APRS beacon, dubbed Thor Hammer (big), to test back-packable APRS 2m beacon concepts.
SMA
UHF BNC N Connector Return Loss Compared
A savvy ham performs testing on the UHF Connector and compares with BNC and N connectors.
‘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.