Tasty » Adam Sampson's hf bookmarks

Multiband HF Center-Loaded Off-Center-Fed Dipole (or Windom) Antenna - HAMwaves.com edit / delete

Taking the Windom idea a bit further with traps. Neat, and good description.

to antenna hf radio windom ... on 04 July 2011

Index - MARTIN - G8JNJ edit / delete

Assorted radio projects; the page on measuring balun loss is good.

to antenna balun electronics hf radio rf ... on 16 May 2011

Main Page - HF Underground edit / delete

Radio-related wiki; lots of stuff on HF pirates, utility stations, and so on.

to hf radio shortwave swl ... on 11 May 2011

EiBi edit / delete

Shortwave schedules.

to broadcast hf radio shortwave swl ... on 01 May 2011

FiFi-SDR edit / delete

... and yet another SDR receiver. This one looks quite neat, but it doesn't have a preselector built in -- which means it can receive VHF by using harmonics, but you really would need to build some filters to make it useful.

to electronics hf radio sdr ... on 27 April 2011

Soft66 edit / delete

More SDR kits.

to electronics hf radio sdr ... on 18 April 2011

Pappradio edit / delete

A prebuilt Softrock-like HF SDR. Looks like it's mostly SMT.

to electronics hf radio sdr ... on 18 April 2011

GM3WOJ contents page edit / delete

Interesting bits on building amplifiers, and how to properly maintain crank-up antenna towers (it's remarkably complicated).

to amateur amp electronics hf mechanica radio retrotech rf ... on 11 April 2011

The Easy Way edit / delete

Why high SWR and feedline radiation isn't necessarily a bad thing (because it doesn't actually cause much loss in practice, and it lets you tune the antenna from the transmitter end).

to antenna ham hf radio ... on 28 January 2011

Digital Modes Samples edit / delete

Audio-only, but a good overview of commercial stuff.

to digimodes hf radio vhf ... on 27 January 2011