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Arduino Board does KB5NJD (Beacon for fox hunt) 1-10-2012, MVI4130
uploadJ
72 views
Quick vid demonstrating a US $19 Chinese-made Arduino board doing CW beaconing ... the Arduino is driving a small Mallory Sonalert in this demo.
More info shortly (give ...
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Gates BC-1G, Maximum Splatter Despite tons of "Processing" Equipment, 12-24-2011 MVI3865
uploadJ
63 views
Despite an "Inovonics Speech Processor" (ostensibly for precise modulation control) the converted AM Broadcast band transmitter occupy more than its fair share of the 75 me...
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"OK" CW Shortwave 'pirate' Beacon - 3450 kHz, 12-16-2011, MVI3836
uploadJ
64 views
Quick video showing that the OK SW 'Pirate' Beacon is still alive and well on 3.450 MHz.
Video taken about 10:20 PM CST, Friday Night, 12-16-2011.
Antenna used was a...
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400V Unkey Spikes on Heathkit SB-220 T/R relay coil, New T/R Relay Driver Test, MVI3826
uploadJ
330 views
Circuit schematic: http://i42.tinypic.com/27y04t4.jpg
This is a test keying and unkeying a new relay/interface driver being tested on a Heathkit SB-220 2 KW DC-input HF ...
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Power Pole Guy Wire showing 'Hot' (voltage) using Fluke 188A C-9970 Voltage Detector, MVI3771
uploadJ
682 views
11-25-2011 A Fluke Networks "Voltage Detector" model C-9970 indicates flashing RED led (danger) on a guy wire next to a public sidewalk in a residential neighborhood ...
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Driving E. on McDermott past Privet Pkwy (R) and Rockledge (L) school zone, MVI3636
uploadJ
40 views
A trip through a School zone in Plano TX
Taped 11-12-2011 about 11:30 AM local standard time.
Audible call-out of speed.
Traffic enforcement sits on the left in t...
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Noisy Boat Battery Charger, 80 Meter Noise Survey, 2011-11-14
uploadJ
105 views
Taped 11-14-2011 Monday, a "Targa 18 Tracker" boat with noisy battery charger
Signal levels:
AM - - 10 dB over S9 in AM mode.
SSB - S5 background noise level increa...
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EAS Test Fail, KXAS NBCDFW, Channel 5, 2011-11-09 1 PM CST, MVI3630
uploadJ
999 views
Video starts at about 1 minute to the hour; nothing heard *during* test except buzzing as the audio companding equipment boosts the audio 'level' (line noise) coming in ......
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Federal Fumble; Texas EAS Test Fails, Nov 9 2011, WBAP, DFW Dallas Texas, 1 PM CST
uploadJ
2,674 views
Video starts at 2 minutes to the hour; nothing heard *during* actual test, no voice, no speaking, nothing at all.
WBAP is a "Primary Entry Point" as well.
See more he...
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Effect of 'floating' UHF Interference on 444.250 MHz PARK repeater, 11-02-2011, MVI3624
uploadJ
116 views
A quick demo showing UHF interference affecting a ham repeater.
Note: The strongest part of the interference was up near 449.280 MHz so the effect on 449.250 MHz input w...
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