VA3-GUF-Frank's Forum Info
Registration Date:
2020-02-27
Last Visit:
2026-04-10, 11:11:52
Total Posts:
23 (0.01 posts per day | 2.79 percent of total posts)
(Find All Posts)
(Find All Posts)
Total Threads:
15 (0.01 threads per day | 3.44 percent of total threads)
(Find All Threads)
(Find All Threads)
Time Spent Online:
20 Hours, 22 Minutes, 27 Seconds
(Find All Threads Liked For — Find All Posts Liked For)
(Find All Liked Threads — Find All Liked Posts)
Reputation:
VA3-GUF-Frank's Signature
73
Frank
Grey County ACS/ARES Volunteer Co-ordinator
VA3-GUF / VE0-GUF / VE0-VET
Frank
Grey County ACS/ARES Volunteer Co-ordinator
VA3-GUF / VE0-GUF / VE0-VET
| VA3-GUF-Frank's Most Liked Post | ||
| Post Subject | Post Date/Time | Numbers of Likes |
| RF Chokes for RFI Suppression | 2024-11-12, 09:26:47 | 2 |
| Thread Subject | Forum Name | |
| RF Chokes for RFI Suppression |
Amateur Radio
»
Builders --- Hardware and Software
Repair Construction Questions
|
|
| Post Message | ||
| To all, The presentation I gave is too big to attache or upload on the forum so the following will be a synopsis of the details from the 11 slides presented. DIGITAL NOISE SOURCES LED Lights LED Displays / TV’s USB Power supply chargers Laptop Power cord Hydro Smart Meters 12VDC power supply Battery Chargers Car 120VAC inverter Solar Controllers Typical recommendations at the antenna 10cm /4in. PVC wrapped in Coax band specific 160m 28 turns 80m 24 turns 40m 14 turns 20m 8 turns 15m 5 turns 10m 4 turns This presentation will focus on the use of Snap on MIX-31 Ferrite of 0.25 inch inner diameter and 0.50 inch inner diameter. Radio Station without and with Random wire Tuner Add Mix-31 Ferrite 0.25 inch (Straight pass) * 1 Ferrite @ Transceiver for installed External Speaker * 1 Ferrite @ Transceiver for Remote Head * 1 Ferrite @ Transceiver for Antenna without tuner Add Mix-31 Ferrite 0.50 inch Looped @ transceiver & @ Tuner * 2 x 5 looped Ferrite on Coax = 10 total * 2 x 1 looped Ferrite on Control cable = 2 total Total Ferrite 0-3 Mix-31 0.25 in. ID 12 Mix-31 0.50 in. ID Radio set up for Digital modes Same as Radio Station with or without tuner Add MIX-31 Ferrite 0.05 inch Looped MIX-31 for each PC cable; * 1 Ferrite @ TNC/modem & 1 @ Computer MIX-31 for each Radio cable; * 1 Ferrite @ TNC/Modem & 1 @ Radio Total Ferrite Radio Station with or without Tuner set-up requirements 4+ MIX-31 0.50 in. ID Dependent on your radio station set-up, anywhere from a few to as many as more than 19 Ferrite may be used. Diagrams for the placement of the ferrite can be found also in the 2 attached files showing radio station set-up cabling. Should anyone have questions on any of the above I can be reached at va3-guf@outlook.com. Cheers Frank VA3-GUF / VE0-GUF / VE0-VET |
||