939 frequency coversion

[RJH02]

Hi, I have a dx939 ,I want to send it somewhere to get it tuned up and maybe a frequency conversion mod done if it's worth it, is it? How many channels will that get me, ? How does it work? Is anyone on the channels? Thanks

[gunner57]

I don't know. I never transmit out of band. That is the line I don't cross. If you are seeking more bands, you should get your amateur ticket.

[Bombero]

Hey..

Since the DX 939 is an AM only radio...I would not go thru the hassle of attempting a channel conversion.

Get you a SSB ready radio...like the DX 959.

Just my dos centavos....

Bombero

[rayray1963]

The expo kits for extra channels aren't a simple plug and play type of deal. Is it worth it, thats up you and what your looking to do. But yes having a good tech tune the radio is always worth it. Again there are those that preach not transmiting outside the normal frequency range but have no problem with transmitting above the legal power levels. Go figure.

Sent from my SAMSUNG-SGH-I337 using Tapatalk

[Z-MAN]

Im not sure if a 939 shares the same board as a 959/949 P5/P6 mod. I think a 939 chasis is smaller. I agree, if you want more....get a bigger radio with more features and mods that can be done.

[MDYoungblood]

To do a frequency mod, it is not as easy as the SSB boards, you will need to exchange the mixing crystal via a switch, a 3 position rotary switch with the stock crystal in the center and an upper and lower on each side. You will have to do the math for the other 2 crystals, getting the board banded and aligned. A good tech would not have a problem doing this. The cost would probably be more than buying a good 949/959 already done.

3's

Greg

[gunner57]

The expo kits for extra channels aren't a simple plug and play type of deal. Is it worth it, thats up you and what your looking to do. But yes having a good tech tune the radio is always worth it. Again there are those that preach not transmiting outside the normal frequency range but have no problem with transmitting above the legal power levels. Go figure.

Sent from my SAMSUNG-SGH-I337 using Tapatalk

That is because transmitting higher power levels doesn't interfere with normal usages of anything as long as the transmitted signal is clean. If there is local traffic on a channel, than change to another and no ones conversations are interfered with. Going out of band violates users who took the time and money to get a license and equipment to do so. That is the difference. It is just radio etiquette.

[Ohio_359]

The expo kits for extra channels aren't a simple plug and play type of deal. Is it worth it, thats up you and what your looking to do. But yes having a good tech tune the radio is always worth it. Again there are those that preach not transmiting outside the normal frequency range but have no problem with transmitting above the legal power levels. Go figure.

Sent from my SAMSUNG-SGH-I337 using Tapatalk

That is because transmitting higher power levels doesn't interfere with normal usages of anything as long as the transmitted signal is clean. If there is local traffic on a channel, than change to another and no ones conversations are interfered with. Going out of band violates users who took the time and money to get a license and equipment to do so. That is the difference. It is just radio etiquette.

I think it's hypocritical to say that it's okay to break one law, but not another. The frequencies in question are casually referred to as "freebands" and not allocated to HAM. Is it legal? No. Does it interfere with 10m? No. Is your Galaxy/TNT legal? No. Does your Galaxy/TNT have the potential to interfere with 10m? Yes.

[rayray1963]

The expo kits for extra channels aren't a simple plug and play type of deal. Is it worth it, thats up you and what your looking to do. But yes having a good tech tune the radio is always worth it. Again there are those that preach not transmiting outside the normal frequency range but have no problem with transmitting above the legal power levels. Go figure.

Sent from my SAMSUNG-SGH-I337 using Tapatalk

That is because transmitting higher power levels doesn't interfere with normal usages of anything as long as the transmitted signal is clean. If there is local traffic on a channel, than change to another and no ones conversations are interfered with. Going out of band violates users who took the time and money to get a license and equipment to do so. That is the difference. It is just radio etiquette.

I think it's hypocritical to say that it's okay to break one law, but not another. The frequencies in question are casually referred to as "freebands" and not allocated to HAM. Is it legal? No. Does it interfere with 10m? No. Does your Galaxy/TNT have the potential to interfere with 10m? Yes.

Exactly my point. Well said.

Sent from my SAMSUNG-SGH-I337 using Tapatalk

[gunner57]

If free banding is all that is intended, than fine. I have no worries about that. But that isn't always the case, which is why I mentioned it. I just hate to see people invading the amateur frequencies. It happens. There should always be a line somewhere and that is a line that shouldn't be crossed. Yes, running power is illegal. But I think a little responsibility and courtesy goes a long way. That is all I'm saying. I'm not trying to be hypocritical.

[silvereagle1]

Hi, I have a dx939 ,I want to send it somewhere to get it tuned up and maybe a frequency conversion mod done if it's worth it, is it? How many channels will that get me, ? How does it work? Is anyone on the channels? Thanks

If you're willing to spend the money anyway on mods I'd go ahead and buy an export radio. You'll get the extra frequencies plus several other features as well. Since you have a galaxy radio now you'll probably like the galaxy 10 meter radios. Just a thought. IMO it would be well worth the extra money.
Number of channels? 320 A-H on most models plus 10 kHz step button.

[jessejamesdallas]

I think it's hypocritical to say that it's okay to break one law, but not another. The frequencies in question are casually referred to as "freebands" and not allocated to HAM. Is it legal? No. Does it interfere with 10m? No. Is your Galaxy/TNT legal? No. Does your Galaxy/TNT have the potential to interfere with 10m? Yes.

I'm going to have to save this response for future use!

[silvereagle1]

Frequency mods aren't any more illegal than a radio transmitting 5 watts output power. pick your poison i guess. almost 99 percent of the cb radio activity is illegal in one way or another. No different than driving 55 in a 45. Just about everyone in the hobby bends the rules to some degree so I don't know why some operators are critical of others when they are doing the same thing but in a different area. not talking about anyone on this thread but I've read on other forums where some will break one rule then make a big deal out of others for breaking another rule. It's ok to run a 250 watt amp on a FCC approved 11 meter radio but god forbid you use a non certified 10 meter export radio! No logic in their way of thinking at all.

[gunner57]

To that end, echo boards, talk back, roger beeps, etc. is illegal to add to a CB too. It doesn't mean I care about them. There are a lot of things that are illegal, but there is a pretty big difference between malicious usage and not.

Sure people drive 5 or 10 or 30MPH over the speed limit and sure its against the law. Do I care if someone does 100MPH on a desolate freeway at 2AM? Not a bit. That doesn't mean I'm OK if someone else drives 100MPH through a school zone with children present. Equally, if someone runs 10KW of power, I don't care. If that person running 10KW of power is transmitting on half the CB channels and making most of the band unusable, then I start to care. There are plenty of frequencies that aren't allocated to amateur operators. Why not just stick to those?

If people can't see a difference and think a line should be drawn SOMEWHERE, than I see no more reason to waste more time talking about it. We can agree to disagree.

[silvereagle1]

It would be nice if the FCC would just be a little more open minded with the rules just a little bit. Not enough to hurt anyone just enough to give a little more freedom. Not knocking the export radios at all because I have one myself but If the FCC were not so iron clad we could all have a happy medium. What would it hurt to gives us just a few of these NOT-used frequencies? Nothing! what would it hurt to have a stock radio put out 30 or 40 watts? Nothing! I'll explain. almost everyone has amps and most people call them dirty amps. If this is true then if a stock radio would come with more power then it is safe to say that the output power would be clean no matter what the wattage. Would that not benefit the FCC? It would clean the airways up and you wouldn't have half as much "outlaw" radios out there. Sure there would still be a few but for the most part I think it would clean up the airways just a bit. It would be nice to be able to purchase a cobra or uniden or midland with a little more (clean) power. a few more frequencies that no one uses anyway. roger beeps echoed boards as an ad on feature. I don't use mine hardly ever at all but I have no problem with those that do use them regular. Personally I think it would be cleaner and more beneficial to the FCC if all stock radios were made more like the exports. At least that way they would be made with the intention of not being splatter boxes. sometimes their own rules is what causes all this mess!

[gunner57]

What makes them splatter boxes are the people who tune them. With a proper alignment, most any export radio can sound clean and clearand on frequency.

[silvereagle1]

What makes them splatter boxes are the people who tune them. With a proper alignment, most any export radio can sound clean and clearand on frequency.

Don't get me wrong I love my radio. I guess it's hard to explain what I was trying to say. I'm guessing that mine isn't a splatter box because no one has commented as of such so far. Knock on wood. I've only had very good compliments Local and dx. Just wish we lived in a world where we could go to an electronics store and see a uniden or a cobra on the shelf with the exact same features as my galaxy and everything be ok.