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#11
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SEA-235 SSB Tuner Problem
I'm happy to report that I resolved the problem. Thanks for all of
the suggestions. This morning I wired a 50' extension cord as an antenna and pulled it via a halyard up the mast. The tuner wouldn't tune, but I noted that I wasn't receiving any WWV frequencies. I switched back to the whip antenna and I still wasn't getting anything. I decided to start checking all of the connections and while I was checking the PLU-59 connection at the transmitter, WWV started to come in. I played with the connector and decided to replace it. After replacing the connector I tried tuning and got great tunes (SWRs between 1.0 and 1.2) and great reception. I'm still very confused as how I could transmit voice and e-mail over this, but I guess that there was just enough of a connection, but insufficient for the tuner to tune. I learned a lot and really want to thank everyone who helped! -- Geoff Shortwave Sportfishing wrote in message . .. On 3 Jan 2004 11:25:06 -0800, (GeoffSchultz) wrote: ~~ snip ~~ What I'd like to know is what other tests can I run to diagnose the problem. Could it be the antennae? Any suggestions would be greatly appreciated. Just remember that I'm in the middle of nowhere. Thanks, Geoff I'm not familiar with that radio, but have you checked the connector at the radio and at the antenna? Loose ground perhaps? Later, Tom S. Woodstock, CT ---------- "I object to fishing tournaments less for what they do to fish than what they do to fishermen." Ted Williams - 1964 |
#12
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SEA-235 SSB Tuner Problem
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#13
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SEA-235 SSB Tuner Problem
On Sun, 04 Jan 2004 22:34:19 GMT, Brian Whatcott
wrote: Lessee: 23 feet, say 7 meters is a quarter wave so a wavelength is 28 meters. 300/28 = 10.7 MHz or a little lower.... The wire in a glass whip can break. Checking it for resonance would eliminate this possibility. Brian W The wire in the whip isn't a straight piece of wire. It's coiled around a form to form a continuously-loaded shortened whip. The electrical length of it is considerably longer than 23'. It'll resonate lower than 10 Mhz somewhere...... |
#16
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SEA-235 SSB Tuner Problem
On Tue, 06 Jan 2004 17:40:51 GMT, Gary Schafer
wrote: Nope, it is just a straight piece of wire. No coils at all. Unless it is one of the old antennas for 2 mhz only. With a coil in them they will not work above 4 mhz. Only a small part of the antenna would be effective on the higher frequencies. Regards Gary God, that must suck! Base loaded with a crappy, lossy tuner AND a way-too-short antenna with only an E-field with almost no antenna current...... NO wonder they all sound so crappy! |
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