WSAA254
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Posts posted by WSAA254
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Yes, a number of dual band will provide a solution. I use a compactenna scan-III for sdr and gmrs, and I have good swr numbers in gmrs and 2 meter. See the attached jpg files. I also use a antenna switch, to switch from the gmrs to the sdr, works very well. The 1st of 2meter 2nd is 420-470 sweep and last is 462-467. You may get slightly better results with other antennas, the compactenna is a very broadband, but it can be done. Regarding antenna switches, there are a number of options, the one I use the "active" feed connects to the radio in question, the other lines are GROUNDED. So just be aware to switch to the correct radio, or you could end up transmitting into a hard ground connection. All info is good info.. Best of luck
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14 hours ago, WSBZ498 said:
connected to a thru hole NMO Pulse Larsen mount, I sanded down the paint on underside of ceiling of truck. Have a comet 2x4srnmo antenna. I’m getting a 1.65 swr. I know it’s nothing to worry about, trying to pin point how to get a lower number. Any help would be appreciated!
Also I did run the power wire to the positive side of battery, and negative to a negative ground of the chassisYour in business. Go with it. SWR can be affected by so many things. I swear I have seen a flea fart and change SWR. best of luck
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On 1/21/2022 at 10:45 AM, HCCFCA said:
Reviving this KG1000 thread... I did a search but couldn't find a thread on this.
I have several repeaters operating on the same channel but in different locations. Is it possible to program multiple repeaters operating on the same channel using only the radio/mic keypad? Is there a step-by-step for this?
If software is needed, I would need something that works on a MAC. Does that animal exist?
This may be a little late, and may not apply since this refers to a non-repeater. I use chirp on a mac m1, programming a kg1000 plus. So far so good. The latest version of chirp will run on mac m1 or the mac intel (depends on os version). I have a old mac (late 2013) that won't run the latest chirp. However the new mac m1 will.. Good luck.. regards
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I am using CHIRP next version 20240419. I have also used previous versions. I use it on a mac airbook m1, seems to work very well. Apple complains about the app not being from there app store, but you can ok the execution of the app under settings. (sure windows is sort of the same). Have been using it about 3 months, so far so good. Best of luck... regards
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Just found this thread. Excellent information. Appreciate everones input. Helped confirm a lot of chirp/wouxun kg1000 plus information. Again thanks to all..
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I use chirp on a mac m1, for the wouxun kg1000 plus. One thing I have noticed, if the repeater input and output tones are the SAME, and you startoff with "cross" it will set the tone to "tone" then only enter one tone for the xmit, or depending on how you start out, if you set it to TQSL, and there both the same, it will put the single tone on the input squelch column. A little confusing, I kind of see what they are doing, but it takes some reading between the lines. I would much prefer to just set both tones and be done. However I can see the benefit of opening up the recv tone in some situations (how mine is currently defaulted to). If that were the case it would be nice to set the recv tone to "all" so there removes any ambiguity. That would simply mean you would get no "extra" level of filtering on what what xmitted from the repeater, The "gate" to the repeater would simply be depending on what you xmitted to it, to have access. Not to confuse things, but there are times where you have to read between the lines on what chirp is doing. I am going to do some test to set the radio manually on some of these "tones" then download from radio to the computer and see how it comes through.. All the best.. all info is good info... regards
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I have been using CHIRP on a mac book m1 for about 3 months now. Now this is on a wouxun kg1000 plus, but CHIRP supports a ton of radios. You may try the manufacturers website first since there software may be more tightly aligned with your specific radio, than CHIRP. I went with CHIRP since wouxun did not support mac m1. So far all works. try https://chirpmyradio.com/projects/chirp/wiki/Home . best of luck
UPDATE: You may end up using CHIRP, but only for programming. Any firmware would be by the manufacturer of the radio
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Elevation is everything. Best distance I have is 50 miles at 5 watts. If it were not for the elevation of the repeater, there is no way I could do it...
best of luck
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On 1/17/2024 at 8:58 AM, WRYP906 said:
The Wouxun KG1000g plus has a multi-band receiving capability including ability to receive within the:
50-53.995 MHz Receive Only Frequencies (6m)
108-179.995 MHz Receive Only VHF Frequencies
320-349.995 MHz Receive Only Frequencies
400-479.995 MHz Receive Only UHF Frequencies (70cm)
700-985 MHz Receive Only Frequencies
AM 108-136MHz (RX)
Built-in NOAA Weather Channels
I have been advised by buy two-way radio to use a Tram Discone Broad Band Base Antenna (25-1300 MHz) which is a CB antenna. Orgianlly they recommended a Tram 1486 UHF Fiberglass Base Antenna, which is a single band radio. Edison fong sugested for the KG1000G, folks use our 5dB gain GMRS antenna. With the exception of the Marine channels, HAM channels, analog FM communications have disappeared. Virtually all government and commercial have gone either P25 or DMR digital.
Has anyone had success with antennas for KG1000Gplus in receiving various bands while successfully transmitting the GMRS channels?
I use a compactenna scan-III. It is a wide band antenna, that give good results in the gmrs bands. I also use this antenna with a SDR, and on a routine bases get NOAA, AM broadcast, I have even picked up some weather satelite data (137.1). Below are my swr results for a number of bands. I think there are better GMRS specific antennas, however for my setup, it works quite well. The first pic is swr at 462 and 467, the second is 420 to 470, third is 2 meters. I have also shown the switch setup I use to switch from the GMRS to sdr setup. I have the wouxun kg1000 plus, but find myself using it primarily for GMRS, When setting it up I confirmed it worked for NOAA/FM etc, however for my use, the wouxun is probably overkill, since I don't use all its capabilities. Best of luck
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14 minutes ago, Sshannon said:
Yes. That’s true. GMRS is intended to be a service using retail products that comply to part 95e. It’s not a service designed to encourage experimentation.
Could not agree more. I ASSUME if the radio has some degree of complience standard, and the radio manufacture has been around awhile, it should be ok. No spurious emissions, etc. All I have is a nano vna, I have never verified that the wouxun xmits at the power advertised. Course if I had to make a choice on selecting a really "clean" transmission, or the last watt out, I will take the "clean" transmission. xmit power is more of a advertising point, as oppose to what it really means. Great content, and information.. all info is good info. regards
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On 4/14/2024 at 3:26 PM, SvenMarbles said:
I think there is a sort of broad misunderstanding of what you can do on UHF, with watts and DB antennas. People want the 50 watters and the 9db gain antennas thinking that's the best way to operate. For your home setup, and with an antenna up high, sure... But it's more to do with the height/LOS. You could probably be achieving the same result with 10 watts if you're doing nice in that configuration.
For the mobile side, you're a low plane level antenna. No matter what,... You can't punch through that dirt grade with watts. 50 or 5,000. The only thing that you can have control of is your take-off angles. The higher DB antennas are shallow. Give up on the watts or ERP. Just radiate more omni.. I've found that that it's been the solution. 5 watts can sound like 50 if it's clear to radiate. On UHF, you're due to lose the contact by terrain long before petering out on power. People CW on 5 watts across the planet.
Power isn't the thing folks.. HF does it by ricocheting off of the ionosphere.
Power only matters if you care to step over a guy. Do we do that in polite society?
Very well said. I never really appreciated the whole line of sight, until I experienced it first hand.
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Just repeating what other folks have said. The key will be the antenna, I love the flagpole suggestions, there is lots of possibilities there.
initially maybe focus on a base station and the antenna solution. Fortunately gmrs frequencies lend themselves to small antennas. There are "ghost" antennas which are small. I am not in a HOA so I have more flexibility. A attic solution may work, depending on type of roof. There are some ghost antennas which are only 3-4 inches tall, specific for mobile installations, may not be ideal for base station, but its better than nothing. The image below is of the antenna I use. Its primary application if for mobile use, however with the added counterpoise ground solution it works very well for a base station.
Since gmrs antennas can be so small, some folks will put the antenna on a roof vent, and if the antenna is only 8-12 inches tall, and it were painted the same color as the roof vent, it would probably be next to "invisible" best of luck, there is a solution
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I am using the Compactenna scan-III . Its more of a "general" purpose wide band antenna, but seems to work very well for gmrs. Below are swr results in the 462-467 range, with this same antenna I can get into 2 meters with a swr of around 2 (not great but workable). I think are are other antennas not so "general purpose". Some can more focused on 2 to 3 bands (2 meter/70 cm/gmrs etc)... The third is 420-470 swr results. Its all a tradeoff. best of luck
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I think I will pretty much echo what everyone else has been saying.
1. Elevation/line of site is king. see the below chart regarding my own situation. I can hit the repeater with 5 watts at 50 miles, but if it were not for the elevation, there is no way. folks have hit the same repeater with a hand held from this area.
2. Quality coax. I use LMR 400. one end has the pl 259 connector the other has a n type connector into a antenna switch. This is a build your own cable through dx engineering. The shot below shows the antenna connection to the switch. switch can select from gmrs to sdr.
3. SWR, its more important for xmit, but a tuned matching circuit is better than one that is not. Bottom line is you want as much real energy getting to the antenna, or from the antenna during reception.
Best of luck, all the information presented here is good stuff.
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On 4/14/2024 at 3:51 PM, tcp2525 said:
Agree, it's definitely less of an issue on 10/11 meters and VHF, but when you are in the UHF region, one has to put in a little more effort to optimize their installation as it not only affects transmit, it attenuates recieve. A lot of newcomers rely on us to get the most out of their gear. I feel it best to advise them how to achieve the best performance, but also give them the option to get it just good enough if they have monetary and/or technical limitations. It's all about compromise, but UHF doesn’t handle compromise without a fight. That's just my opinion.
Just to put the SWR in context, years ago (50+) I had a Heathkit hw-16 I used for novice license work on 80 meters. Crystal controlled etc. I did not have a SWR meter initially, I finally got one, then checking the di-pole antenna, had a SWR of 6:1. I know this is all comparing apples to oranges. I guess at this point my Standing Wave Ratio became Sitting Wave Ratio. When I went and sold the HW-16, (all tube). the guy who bought it had the tubes checked, and the final output tube was a little weak. Guess that reflected energy was not the best thing. From what little I know, if you can stay under 2:1 its good, anything under 1.5:1 is better. Having said that I have seen the smallest things affect SWR. Antenna is one in the list. Excellent input/feedback. All info is good info.. regards
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From what little experience I have had, its like squeezing jello. You can get a really good tight antenna that really works well for a specific freq, but then suffers outside that given frequency. It kind of comes down to where you spend most of your time. if 90% of your time is hitting repeaters, then tuning around 467 is a good thing. Picking a different antenna can make a difference to. A antenna with a "FLATTER" swr response, may not give the highest db, but may give a better overall performance. Its to easy to fall into the "Analysis Paralysis" mode and overthink it. SWR info is good, however little things can affect swr reading by a tenth or so. So SWR numbers can really tell you which way the wind is blowing, but splitting hairs over a 1.2 versus 1.4 is great from academic discussion, but does not mean that much. Its good info... All info is good info. regards.
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After reading all the feedback, I would say if 10 folks are saying use XXX meter, then you probably can't go wrong. I use a nanovna h-4 for swr, its overkill, however one thing I have noticed, swr numbers can vary by 2-3% depending on connections, coax type, coax run length, or if you have any antenna switches in the feed line ( I do). I have seen my swr numbers vary by 0.1 depending on the coax type I connected to the nanovna, which hindsite what it is I probably would go with what has been recommened as opposed the nanovna. As long as you have a meter that works in the frequency range required, and you have a few other folks that say Yep this works for me, then your good... Best of luck.. All info is good info... regards. The image attached is swr after a antenna switch and using the same coax that connects to the kg1000.
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I should have mentioned antennas, my apologys. I use the compactenna scan-III that is only about 10ft in the air. The response is fairly good from 100mhz and up, HF is not that great, although I can get better response at night. I am sure there are much better antenna setups for HF stuff, but for my purpose this works ok.. I also use the same antenna for GMRS, with very good results. Having an outside antenna makes all the difference in the world, anything you do outside will beat any little antenna they give you for inside application. Best of luck.. all info is good info... regards
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I went through some work on deciding between a midland or a wouxun kg-1000 plus. In a way I would have preferred the midland, it was simpler. The kg1000 will do more than I ever needed, however it was more flexible on software interface. I know that technically you don't have to have "software" on a computer to "program" them, but boy it sure makes it easy. The problem for me regarding the midland, it required a windows computer to load firmware updates, While I could have probably/maybe figured this out using bootcamp on the mac, I just went with the wouxun and use CHIRP for programming. The wouxun has worked out very well, but its way more than I need. I would have been happy with the midland if there interface was easier... Hope this helps, good luck.. All info is good info... regards
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I am currently using a SDR play with there SDR connect software. I also have a gmrs setup with a switch between the two "radios". It works well. If I am working with the SDR I always go the the freq that the repeater is transmitting (462.***). I have notice between the gmrs receiver and the sdr, that the quality of the reception of the gmrs is better. This makes sense since its a superhet receiver. The big difference if voice quality, and the gmrs radio has less static. On your sdr make sure that the squelch is reasonable, you should see some activity on the waterfall. Also try to play with the sampling rate, this may provide a better resolution. Best of luck, the SDR stuff can be like drinking from a fire hydrant. A lot of time the gmrs is kind of quiet, so see if there is a known network traffic at somepoint. All info is good info... regards
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I went with DX-engineering "build your own" cable. If your building alot, then maybe getting the correct tools etc would be worth it. If your just doing 1 or 2 then have it built. You can also pick the type of connector for any given cable. Just my 2 cents, best of luck.
- SteveShannon and WRYZ926
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Appreciate the info. I did not tighten them much. I kind of assume they will fall off withing a year, due to sun/elements. Then I will go for cable grip. Current SWR is 1.1-1.4 depending on frequency, so far so good. The coax is a lmr400, so it seems to be robust. Good info appreciate the feedback... All info is good info regards
- WSCF926, SteveShannon and WRYZ926
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Base Station: Wouxun kg-1000 plus
Software: Chirp on a mac m1
Antenna: Compactenna Scan-III
Cable: LMR 400 ultra flex
I use a antenna switch to switch from SDR to gmrs.
best of luck...
SWR
in Technical Discussion
Posted
if you don't have a SWR meter or a nano vna to check, it gets down to "trust me". if the antenna is a reasonable quality built for gmrs, and your using quality coax and connectors, connect it up and see if you can hit a repeater. Does that antenna advertise any SWR results or do other folks use the same antenna etc. Outside of that its "trust me"... best of luck. The antenna I use give a ~1.4 swr, I did no tuning etc. used it "out of the box"