DropTableAdventures - DTA Rev2.0 #2 - How to get HF Radio usable in a modern vehicle (also fixing P0299 for $30 not $600)
Metadata:
| Season Identifier | S02E02 |
| Original Filename | hfnoise.mov |
| Date Filmed | 2020-12-21 |
| Date Uploaded | 2020-12-22 09:33:14 UTC |
| Date Released | 2020-12-23 08:07:50 UTC |
| Location(s) | Gladstone, QLD |
| Notable Equipment | Ferrites. Lots of ferrites. |
| Camera(s) Used | 2x GoPro Hero 8 |
| Software Used | Final Cut Pro |
| Subscribers when released | 60 |
Trivia/Background:
This video was the first to be practically useful, and deeply technical in nature.
It’s received a few views, so hopefully it’s useful to some.
Video:
Description:
Note: S Meter readings are taken with the pre-amp enabled at 2 (the highest setting). These will be 2-4 S units higher (~30db) than any other radio or this radio with the pre-amp disabled. The S5 on 20m with the preamp off is around S1.
Some adjustments to a Landcruiser 200 Series Diesel to significantly reduce interference with HF radio. The worst affected band, 20m/14MHz, close to S9+10 is reduced to a usable S5. 34dB or 2500x less noise power. Also, a common cause of OBD2 error P0299 fixed for $30 (instead of $600 of diagnostics for what is a common problem) (at 00:51).
(I said S9 flat - but what I meant was it never goes below S9)
Parts used: (not sponsored by any of these, just where I bought them)
Ferrites: https://au.element14.com/fair-rite/0431164181/ferrite-core-split-12-7mm-260/dp/1463431 - Fair-Rite 0431164181 - 12.7mm internal diameter, mix 31 split bead. 8 placed on injector leads, 4 on injector controller cables, 1 on radio power cable.
Ground Braid: https://www.dxengineering.com/parts/DXE-TCB-100 - 1" tinned copper ground braid. Used about 10 feet of it.
Crimp terminals: got them on eBay - search for SC25-6, SC25-8 and SC25-10 for 6mm/8mm/10mm bolt size. Altronics has them too.