Menu

Erosion of the Zinc anode and HF transmission via PacTOR modem andSailmail

Search this Thread

Prev

Previous Post

Next Post

Next

#7

Report Post

posted to rec.boats.electronics

Larry

Larry is offline

external usenet poster

First recorded activity by BoatBanter: Jul 2006

Posts: 5,275

Default

Erosion of the Zinc anode and HF transmission via PacTOR modem and Sailmail

Bil wrote in news:4593e5ee-8dc2-463a-bd1d-
:

After checking my zinc anode, I'm fairly certain I'm getting
accelerated erosion of my shaft zinc anode when transmitting Sailmail
e-mail via my HF radio and PacTOR modem.

Sailmail and the PacTOR modem drive the HF radio (an ICOM IC-M710)
fairly hard.

Does everyone transmitting with a PacTOR modem suffer accelerated
erosion of their zinc anodes? Or is this something specific to my
installation (and can be corrected)? If the latter, what should I look
for and correct?

Cheers

Bil

You must send an awful lot of email.....

You may want to disconnect the tuner ground from the underwater propulsion
and zincs and go to a ground screen system inside the hull. Start right
under the tuner and just lay out a roll of chicken wire screen along the
hull as big as you can. This forms a series capacitor with the seawater
outside the plastic the other plate. If your screen has a large enough
area against the hull, (The bigger the better), the RF to ground flows
through this series capacitor's "hull dielectric" into the sea....without
direct contact with the zinc protected underwater metals. With no
RF current flowing through the zincs....the RF problem bypasses it right
through the hull.

Reply With Quote

Reply With Quote

Thread Tools	Search this Thread
Show Printable Version	Search this Thread: Advanced Search
Display Modes
Switch to Linear Mode Switch to Hybrid Mode Threaded Mode

Posting Rules
Smilies are On [IMG] code is Off HTML code is Off Trackbacks are On Pingbacks are On Refbacks are On

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Pactor USB modem - advice	Peter Hendra	Cruising	1	March 16th 07 06:31 PM
Pactor modem	AMPowers	Cruising	6	February 12th 07 04:31 PM
Pactor Modem installation	Peter Hendra	Cruising	7	August 14th 05 11:45 PM
Trim Tab anode?	Ken H	General	5	August 8th 03 12:49 AM
FS: SCS PTC-IIe PACTOR MODE MODEM	Alan	Electronics	0	August 3rd 03 12:11 AM

All times are GMT +1. The time now is 04:55 PM.

About Us

"It's about Boats"

Contact Us BoatBanter Home Privacy Statement

Copyright © 2017