Search found 3 matches

by bonny
Sun Dec 30, 2018 11:28 pm
Forum: Gear and Gadgets
Topic: SWR meter
Replies: 5
Views: 8023

Re: SWR meter

I too have an old one from CB radio days. Spec'd up to 144MHz (the 2metre amature radio band) but works quite well at 170MHz marine band. It not only measures the SWR (Standing Wave Ratio) which checks your aerial lead and aerial are ok but also allows you to check the power output of the radio (use...
by bonny
Sat Nov 24, 2012 9:14 pm
Forum: Gear and Gadgets
Topic: NASA Navtex repair
Replies: 16
Views: 12829

Re: NASA Navtex repair

I too have a Navtex which has suffered from a leaking battery, I have repaired a couple of tracks, replaced the battery and a number of components. But there is obviously something I have missed as the screen is illuminated without the menu and the 78L06 6V REG get blistering hot. Can anyone sugges...
by bonny
Fri Apr 13, 2012 7:05 pm
Forum: Gear and Gadgets
Topic: NASA Navtex repair
Replies: 16
Views: 12829

Re: NASA Navtex repair

Hi, I had a similar problem, where my battery died. I replaced it with an easily obtainable cordless phone battery 3.6V 760mah (original was about 400mah - anything upto about 1000mah will do), simply cut off the plug and soldered it in. Cost about £2 on ebay. I also had a problem with corrosion in ...

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