5 MHz Split

[Elbowmac]

I am attempting to program a repeater that does not have the standard +5Mhz into my radios. The radios I  own, a Radioddity GM-30 and DB20G do not seem to allow this and the seeming lack of documentation is perplexing. I have been advised that this is a specific radio issue and it is also a FCC requirement for gmrs radios... Another internet and word of mouth conundrum ie: pain. Thanks for any clarification, information and or documentation

 

BTW any thoughts on Wouxon KG805G radio's quality, durability and reception and transmissions. Hope that covers it all.....

Edited yesterday at 05:29 PM by Elbowmac
Additional info needed

[Elbowmac]

4 hours ago, WRYS709 said:

Repost on another thread that is not "Sort by Votes" and I will be happy to respond...

If it is a ham radio repeater, post on that topic please.

Hello WRYS709, I am finally understanding your post. I did not know that there is a Sort by posts type thread. I was wondering about the crazy answer structure I was receiving. How do I go about reposting and finding the options on type of posts?

[Lscott]

18 hours ago, Elbowmac said:

No I guess not...... !!!!!!!!!!!!!!!!

Unfortunately manufactures "assume" that GMRS repeaters are using the "usual" 5MHz so that gets baked in to the radio's programming software and or firmware. For the most part it works so it's a fair assumption and simplifies the radio programming. This seems to be the case with the GMRS specific radios being sold.

The options to work around that is to to use a radio that can be unlocked so arbitrary frequency splits can be programmed, or use a commercial grade radio. The later option typical requires the radio tech to program in two frequencies, a receive and a transmit, there is no entry for a frequency split, or offset. When I first got into using commercial grade radios years back, and coming from a Ham radio back ground where the radios had entries for the offset, it was a bit of a mental adjustment to get use to the idea. You do have to pay attention to which frequency goes into which column. It's easy to switch the two around and end up transmitting on the output frequency and receiving on the input frequency, oops.

This is one of my preferred analog only radios for GMRS.

https://forums.mygmrs.com/gallery/image/263-tk-3170jpg/?context=new

This is a sample of the programming for a Kenwood TK-3170, which is what I usually carry around for Ham UHF and GMRS use.

 

[Socalgmrs]

20 hours ago, Elbowmac said:It is possible that it is a non gmrs repeater, it did not specifiy. I have listened to several informative in depth communications on the repeater. I am having enough .... difficulty with the radio, lack of documentation and repeater etiquette that I am currently full up. Will wait to venture forth, but again thanks for the possibilities.

The frequency will tell you that it is a non gmrs repeater.  I don’t think any one has asked this simple question.  What are the frequencies listed?   

[Elbowmac]

1 hour ago, Socalgmrs said:

I’m on simplex and repeaters Atleast 12 hours every day 7 days a week. I talk on average 20 miles many times 50plus miles.   No one knows if I’m using a $20ht and a $150ht or a $5000ht.  You’ll learn kore as you actually use multiple radios over 30plus years.     They all tx and rx exactly the same.  The ONLY difference is battery life and I can upgrade any radios battery for small and light or big and heavy.  

Howdy and what are some good sounding and quality radios that you have used that would be significantly cheaper than the Wouxon KG805G, if you don't mind? They are going for like $79 with a free antenna upgrade? Interested to know. Any particulars on why also, don't want to start a great controversy!!!!

[Elbowmac]

1 hour ago, SteveShannon said:

I agree with Gil (@WRUU653). Please don’t start a new thread because one person cannot adapt to the up/down voting. This is the technical forum. People have the ability to very easily choose “sort by date”. 
Unfortunately someone went through the responses here and downvoted almost every post, including your very reasonable questions.  That was petty and shows an utter lack of respect to those who honestly try to answer technical questions.

Back to your original question, although the typical GMRS repeater will use exactly 5.000 MHz as the offset, the regulations do not require it.  The regulations do require that transmitting to a repeater be done using one of the eight established 467 MHz main channels and that the repeater transmit on one of the 462 MHz main channels. https://www.ecfr.gov/current/title-47/section-95.1763

But choosing an offset that is different than 5.000 MHz will result in many (perhaps all) certified GMRS radios being unable to use your repeater.  All certified GMRS radios that I know of uses 5.000 MHz as the offset.  So that means that people will be forced to unlock ham radios or repurpose commercial radios in order to use your repeater transmit. Whether that’s a problem, only you can determine.  One way to get around that is to use a radio that can be programmed using Chirp and which supports non-standard offsets or separate receiver and transmit frequencies. The cheap Baofeng UV5R radios did this easily.  Many ham radios use “Automatic Repeater Shift” which assumes exactly 5.000 MHz offset for UHF frequencies. Commercial radios, found on the used market, like the ones @Lscott refers to would be absolutely excellent for this purpose.

Best wishes!

Thanks sir. Getting to understand the possible ambiguity in wording and rules . I prefer to follow the rules as a good citizen or at least break as few as I can manage I personally found your explanation more comprehensive and understandable to me! Not to downplay other's information! In reference to the Voting type threads this is the first time I have encountered it and it takes a bit to follow the logic 0ld dogs, new tricks

[SteveShannon]

@Elbowmac - one thing that you can do with certified GMRS radios with dual tuners is program the primary tuner to transmit on the correct repeater input frequency and program the secondary tuner to receive only on the non-standard tuner.

Oops, I see that @MarkInTampa posted that same solution yesterday. Sorry.

[Elbowmac]

2 minutes ago, SteveShannon said:

@Elbowmac - one thing that you can do with certified GMRS radios with dual tuners is program the primary tuner to transmit on the correct repeater input frequency and program the secondary tuner to receive only on the non-standard tuner.

 

Believe that might have been suggested but out of my current league. Will keep it in mind as learn, fingers crossed.

[SteveShannon]

Just now, Elbowmac said:

Believe that might have been suggested but out of my current league. Will keep it in mind as learn, fingers crossed.

You’re right. @MarkInTampa nailed it yesterday.  I failed to see that.

I have the KG-805.  It’s an excellent radio. Unfortunately I don’t believe there’s any way to program it for a non-standard split. 
I also have a Baofeng UV5R.  Although the QC wasn’t nearly as good it works adequately. It will definitely transmit just as far.  It sounds okay, and it can be programmed with the split. But I bought it before they started locking them down.  I don’t know about the newer versions, but I suspect once they’re unlocked they’re fine.

[Elbowmac]

2 hours ago, Lscott said:

Unfortunately manufactures "assume" that GMRS repeaters are using the "usual" 5MHz so that gets baked in to the radio's programming software and or firmware. For the most part it works so it's a fair assumption and simplifies the radio programming. This seems to be the case with the GMRS specific radios being sold.

The options to work around that is to to use a radio that can be unlocked so arbitrary frequency splits can be programmed, or use a commercial grade radio. The later option typical requires the radio tech to program in two frequencies, a receive and a transmit, there is no entry for a frequency split, or offset. When I first got into using commercial grade radios years back, and coming from a Ham radio back ground where the radios had entries for the offset, it was a bit of a mental adjustment to get use to the idea. You do have to pay attention to which frequency goes into which column. It's easy to switch the two around and end up transmitting on the output frequency and receiving on the input frequency, oops.

This is one of my preferred analog only radios for GMRS.

https://forums.mygmrs.com/gallery/image/263-tk-3170jpg/?context=new

This is a sample of the programming for a Kenwood TK-3170, which is what I usually carry around for Ham UHF and GMRS use.

 

Thanks for your time and information! I have barely gotten past the basic setting channels and repeaters that don't require possibly half of the settings listed in my radios. Just found out about the tot use, reason and setting. My GM-30 has an offset setting, that is disabled. The manufacturer hasn't been able to provide any documentation on the function page and the channels have been hit and miss. Figured out what DIY channels mean.... 500 channels,,,,, sure!

[Elbowmac]

7 minutes ago, SteveShannon said:

You’re right. @MarkInTampa nailed it yesterday.  I failed to see that.

I have the KG-805.  It’s an excellent radio. Unfortunately I don’t believe there’s any way to program it for a non-standard split. 
I also have a Baofeng UV5R.  Although the QC wasn’t nearly as good it works adequately. It will definitely transmit just as far.  It sounds okay, and it can be programmed with the split. But I bought it before they started locking them down.  I don’t know about the newer versions, but I suspect once they’re unlocked they’re fine.

I purchased the GT-5R Pro as it was FCC certified (good citizen idea). Don't know much about dual band. I have been advised that the 805g doesn't use diy channels and thus can be programmed for different frequencies with different tones for the varied repeaters on all available channels/memory settings?! I don't require the non-conventional offset as of now. My choices are basically gut reactions to the concepts I've gleaned such as superiority of superheterodyne reception. Again don't need to spark a debate. Beauty of advertising and brand name/ term recognition!!

[SteveShannon]

5 minutes ago, Elbowmac said:

I purchased the GT-5R Pro as it was FCC certified (good citizen idea). Don't know much about dual band. I have been advised that the 805g doesn't use diy channels and thus can be programmed for different frequencies with different tones for the varied repeaters on all available channels/memory settings?! I don't require the non-conventional offset as of now. My choices are basically gut reactions to the concepts I've gleaned such as superiority of superheterodyne reception. Again don't need to spark a debate. Beauty of advertising and brand name/ term recognition!!

As long as you don’t need the non conventional offset the 805 should be excellent.  You can program it with up to 128 custom channels. One nice thing is that the squelch is much better out of the box than the Baofeng, but there is a way to tweak the squelch for the Baofeng. I have a GT5R also, but it’s strictly a ham radio, not GMRS.

[Elbowmac]

Just now, SteveShannon said:

As long as you don’t need the non conventional offset the 805 should be excellent.  You can program it with up to 128 custom channels. One nice thing is that the squelch is much better out of the box than the Baofeng, but there is a way to tweak the squelch for the Baofeng. I have a GT5R also, but it’s strictly a ham radio, not GMRS.

Is it true that it requires the proprietary programming cable to set the bcl and possibly other settings?

[SteveShannon]

9 minutes ago, Elbowmac said:

Is it true that it requires the proprietary programming cable to set the bcl and possibly other settings?

The 805?  It uses the same cable as the Baofeng radios.  You probably already have one, but if not it doesn’t hurt to get the Wouxun cable. Busy Channel Lockout can only be set from the software.

Heres a video on programming it:

 

[Elbowmac]

4 hours ago, WRUU653 said:

You posted in the correct area. Some don’t like the voting system but as it was a technical question and the voting system is designed to allow the most relevant answers to move to the top. It is unreasonable to expect you to make a double post just for one person’s preferences. If you had made a second post someone would give you a hard time for that. Don’t worry about your post you are doing fine. I say all this as someone that prefers to read post in order by date but I’m not going to give the poster a hard time about it.

Back to the original subject. If you tell us what the TX and RX frequencies are a determination of whether this is a GMRS repeater with an unconventional offset or if perhaps it’s an amateur band repeater could be made. Though it sounds like might have already determined that. 

Thanks and I don't believe I will use this technique again!!

[WRUU653]

2 minutes ago, Elbowmac said:

Thanks and I don't believe I will use this technique again!!

It’s no problem if you do.
If someone has a problem with the way the site behaves they should take it up with the owner not the people who use it. 

[SteveShannon]

2 minutes ago, Elbowmac said:

Thanks and I don't believe I will use this technique again!!

It really wasn’t a technique that you could choose.  If you post in the technical discussion forum the sort by votes is the default.  Unfortunately choosing sort by date isn’t persistent once a person chooses it.  I do agree with 709 that it’s a pain in the ass, but like Gil (@WRUU653) I can live with it.

[Elbowmac]

10 minutes ago, SteveShannon said:

The 805?  It uses the same cable as the Baofeng radios.  You probably already have one, but if not it doesn’t hurt to get the Wouxun cable.

Heres a video on programming it:

 

Appreciated, I can imply some of the settings on my radios from this as well as see how this is done on a perspective purchase!

[Elbowmac]

7 minutes ago, WRUU653 said:

It’s no problem if you do.
If someone has a problem with the way the site behaves they should take it up with the owner not the people who use it. 

Appreciate the support and help increasing my understanding. I find it difficult after using forums forever!! Thanx

[WRYS709]

20 hours ago, Elbowmac said:

Hello WRYS709, I am finally understanding your post. I did not know that there is a Sort by posts type thread. I was wondering about the crazy answer structure I was receiving. How do I go about reposting and finding the options on type of posts?

I will let @WRUU653 answer your questions, instead of just complain about my complaining about the format and meta-structure of this type of thread.

And, hopefully he will be specific about his answers on your use of the GM-30 and DB20-G on split repeaters!

Good luck and see you on your next question! 

[Socalgmrs]

5 hours ago, Elbowmac said:

 

BTW any thoughts on Wouxon KG805G radio's quality, durability and reception and transmissions. Hope that covers it all.....

Loads of radios Atleast same quality for much less money. It’s just a radio like all other radios.  It will rx and tx exactly the same as a radio 1/5th the price 

[Socalgmrs]

15 hours ago, AdmiralCochrane said:

But it is more likely to apply more of its radiated power on receivable center frequency and less wasted on harmonics that no one hears.  Your money is not wasted.

I’m on simplex and repeaters Atleast 12 hours every day 7 days a week. I talk on average 20 miles many times 50plus miles.   No one knows if I’m using a $20ht and a $150ht or a $5000ht.  You’ll learn kore as you actually use multiple radios over 30plus years.     They all tx and rx exactly the same.  The ONLY difference is battery life and I can upgrade any radios battery for small and light or big and heavy.  

[WRYS709]

50 minutes ago, Elbowmac said:

I did not explain myself well enough, thanks. I want to program a non-standard repeater split, not the +5 Mhz standard!!

Repost on another thread that is not "Sort by Votes" and I will be happy to respond...

If it is a ham radio repeater, post on that topic please.

[WRYS709]

"Sort by VOTES" - Good luck!