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Useful information (lists of packet nodes, etc.).
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
Electronics tech in a chemistry department with an impressive collection of old radio gear. Lots of pictures, schematics, etc.
Including investigations into multiturn loops. (Aegis on #hamradio.)
Homebrewing for the higher bands.
to amateur electronics microwave radio ... on 27 February 2011
Converting CB radios for use on various amateur bands (not just 10m -- he walks through a conversion for 4m!).
to amateur cb electronics hf radio vhf ... on 23 January 2011
A (relative) local with lots of VHF-and-higher information.
to amateur electronics eme microwave radio vhf ... on 16 January 2011
The Four Metres Website - Home
Lots of useful resources for the low VHF bands.
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| - amateur | |
| 1 | 4m |
| 1 | 6m |
| 11 | aerial |
| 59 | amateur |
| 1 | amp |
| 5 | amplifier |
| 2 | amusements |
| 1 | analyser |
| 3 | antenna |
| 1 | aprs |
| 1 | arm |
| 1 | atv |
| 1 | audio |
| 1 | ax24 |
| 2 | ax25 |
| 1 | baofeng |
| 3 | beacon |
| 4 | cb |
| 1 | china |
| 1 | codec |
| 1 | coil |
| 1 | compression |
| 1 | digimodes |
| 1 | digital |
| 1 | echolink |
| 8 | eh |
| 29 | electronics |
| 1 | eme |
| 1 | filter |
| 1 | gps |
| 1 | hellschreiber |
| 17 | hf |
| 1 | history |
| 1 | inductor |
| 5 | isotron |
| 4 | kits |
| 1 | led |
| 2 | lf |
| 1 | light |
| 1 | loop |
| 2 | lpf |
| 1 | mechanica |
| 1 | mf |
| 3 | microcontroller |
| 3 | microvert |
| 2 | microwave |
| 1 | mixer |
| 1 | mkars80 |
| 1 | mobile |
| 1 | modelling |
| 2 | modem |
| 1 | nbtv |
| 1 | optoelectronics |
| 7 | packet |
| 1 | phreaking |
| 1 | psk |
| 1 | psk31 |
| 1 | psu |
| 6 | qrp |
| 59 | radio |
| 1 | raspberry-pi |
| 1 | repeater |
| 1 | retrocomputing |
| 4 | retrotech |
| 1 | reverse-engineering |
| 2 | rf |
| 1 | satellite |
| 1 | shopping |
| 1 | shortwave |
| 1 | sinclair |
| 11 | small-aerial |
| 3 | software |
| 1 | spectrum |
| 1 | spice |
| 1 | ssb |
| 1 | sstv |
| 1 | surplus |
| 1 | test-equipment |
| 2 | to-package |
| 1 | transceiver |
| 2 | transmitter |
| 2 | tv |
| 1 | uhf |
| 1 | uv3r |
| 1 | uv5r |
| 1 | valve |
| 6 | vhf |
| 1 | video |
| 1 | weather |
| 1 | wspr |
tasty by Adam Sampson.