galaxy 959

Recently had it worked on and beed giving me probs since...I have tried to tune the ant.

You may have a problem with your coaxial cable, connectors or or a bad earth.
OAong the cable, check for nicks or cuts, being squashed, sharp bends or if heat affected. If it's in a mobile installation and the coax is too close to a manifold etc, the excessive heat will eventually cause a problem with high loss. How old is the coax? If it's years old, maybe worth replacing anyway.

If the SWR is higher on Ch40 and lower on Ch1, then your antenna is too long and can still be cut.
If the SWR is higher on Ch1 than on Ch40, then you've cut too much and the antenna will be too short (resonating at a higher frequency). You'll need to add some length.

Any adjustment the tech did inside the radio isn't going to have affected the antenna's SWR.

2006-06-05 16:14:13 by Rick D

www.cbradiomagazine.com - This is a video review overview of the Galaxy DX 959 which is one of Galaxy#39;s best selling radios. The radio is a 40 ...

I have a galaxy dx 959 cb radio. And a 102" whip for an antenna. what kind of range should I be getting?

A 102" whip? Installed on your car or truck, I hope - a plain whip won't do much good up on the roof of a house (you need a ground plane).

If your whip is on your car's rear deck or a rear fender, as used to be common for cars, you'll get better range in the direction the car "points" away from the whip. e.g. whip in the left rear, best range will be toward the front right. If your whip is in the center of the roof you'll get a bit more range ahead and behind, a bit less to the sides.

You also need to tune the antenna for low SWR. 1.5:1 is the worst it should be. I could usually get it below 1.3:1 with a mag-mount 5/8 whip.

Assuming a correctly mounted and tuned antenna, you can expect five to 10 miles if the band is quiet, you're away from cities, and there is relatively flat ground between you and your contact; up to 20 miles in really good conditions (ground is so flat you could literally see your contact with a telescope). CB is basically line-of-sight: it won't normally reach over the horizon but if you're close enough you won't lose contact every time you're behind a little hill. A steep-walled narrow valley, though, is more of an issue. If you're both in different steep-walled valleys you can more or less forget it.

You have an SSB rig, which will improve your usable range if your contact is using SSB also, and (again) assuming the channel is clear of other users. With SSB you can use either the upper or lower sideband, and they don't interfere with each other. But an AM user on the channel will interfere with both sidebands (and SSB'ers on either sideband will interfere with AM on the channel).

Within a city, or from city to country, range is much worse. Tall steel-framed buildings are a problem. Also, the closer you are to a city, the more traffic is on the band. If there's another person transmitting, and they're much closer to your contact than you are (or you have more obstacles in the way), your contact will never hear you. I wouldn't count on more than a few miles even in the suburbs - this is mainly due to other people on the band. If you're downtown among the skyscrapers, make that one mile.

CB does experience occasional "skip" conditions. "Skip" is how short wave broadcasters (CB is in the frequency range normally considered "short wave"; there is a short wave band at 13 meters, not far from CB's 11 meters) routinely reach hundreds of miles, sometimes thousands. However they only do that routinely with immense transmitters and antennas, and even then it is very dependent on the time of year and the time of day, and on sunspot cycles (not kidding). So you can't count on skip working when you need it.

2008-12-08 14:17:42 by jfinney91

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I'm looking into buying a new CB radio, the -Galaxy DX 959 40 Channel AM SSB- has caught my eye. This radio broadcasts in AM, LSB, and USM. Why does that matter? What's the diference in say a standard cobra 29? What are the differences between the three (AM/LSB/USM)?

Simplistic answer, AM uses the whole channel for voice. One person can talk at a time on a given channel. SSB is single side band technology. I can talk on the upper sideband to someone while you talk to someone else on the lower sideband, and we don't interfere with each other.

Wikipedia discusses it, see the link

2009-08-05 11:09:52 by Sarah

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Hello. I just painted my truck, and took my old 102" antenna off of the truck. I remounted it to the back of my bed with a 90 degree angle bracket. It is now in the center of the truck, rather than the right corner of the window.
My SWR was at exactly 1 when i set it up the first time, but now, it is standing straight up. I have a galaxy DX 959 radio, and a radioshack stainless steel whip. The antenna isn't tuneable, but the length hasn't changed since i've re-mounted it. I have tried grounding both the antenna ball mount and the actual radio, but the needle doesnt move. The only time it drops is when i unscrew the PL-259 cable, yet leave the male connector inside of the female. If I completely remove the cable, the SWR Warning light comes on. I don't know if this is enough information to possibly ID the problem, but i will try to take some pictures of the setup to be used as an aid. Thanks a lot.

-Brandon M.

It sounds like there might be a short or a break in the coax. Try unhooking the coax and using a mulitmeter to check continuity in the coax. To check that, touch the positive lead on the multimeter to center wire on one end and the negative lead to the center wire on the other end. It should show no resistance there. Next, do the same with the outer connector ends. If that shows no problem, connect the positive lead to the center wire and the negative lead to the outer connector. That should show some resistance. If it doesn't, you have a short in the coax and it needs replaced. Otherwise, might be in your grounding, connectivity to the antenna etc.

2008-05-04 19:34:47 by Brandon M

I have a galaxy dx 959 cb radio and want to hook up a pa system to it. it has a pa jack on the back..but the puny 4 watts it pushes sucks. so i want to hook up an amp to it..So this is what I got...picked up a 100 watter pa horn from radio shack...i got the in-line converter that i was told to get for the amp...and i got the plug (which had both male ends on it..was told to cut one end off..i did that but now there is a wire with red sheathing on it wrapped in bare wire and a wire with white sheathing on it wrapped in bare wire)..the in-line converter has a -/+ for the right and left side.(input).total of 4 wires........and then it has two rca out puts...AND it has a brown wire NOW my question is...what kind of amp should I get..will a car audio amp work...and if so HOW THE HECK DO I HOOK ALL THIS UP?........the last email i had gotten was..... (Go to car audio shop and get a "Line Output Converter", a "small amplifier"(50-100 watts) and a wiring kit for the amplifier. Get the 100 watt PA speaker from Radio Shack. Ask the audio shop to help you with wiring the Line Out Converter to the PA jack of the CB if you don't know how to install one. Install the amp with the 100W speaker).....so again how do i hook all this up...on the plug..is the bare wire the ground and the covered wire the power...

Putting an amplifier, after the PA jack, can cause feedback & blow the cb circuitry. It is strongly recommended that you don't do it.
The output of the pa circuitry, would also be too powerful for the amplifier. It may also blow. Don't damage a galaxy dx 959 just to prove it can or can't be done, they are too good a radio for that. If you are persistant in doing this, buy a cheap am set off ebay, & experiment with that.
Contact me if you need further help.
johnwynn777@yahoo.com.au

2009-02-23 23:00:45 by carguyseeksanyone