-
Posts
2069 -
Joined
-
Last visited
-
Days Won
64
Content Type
Profiles
Forums
Events
Gallery
Classifieds
Everything posted by gortex2
-
I dont notice it as much on a PC. Its there but useable. I can see on a phone how it may not be the same.
-
Can I use Morse code to identify myself on my GMRS handheld radio?
gortex2 replied to Slickii's topic in myGMRS.com
Years ago all Ham vendors asked for a copy of a license. Radio Shack had a policy that specifically stated paper license. I had to wait for weeks to even put my HTX202 on Lay-Away with Radio Shack until my license came in the mail. HRO used to be the same. I never had an issue with it. Remember up until the CCR movement radios were regulated way more than now. I remember my father buying GMRS mobiles from a radio shop (cause they were you bought them) and he had to bring in his licence before they would ordser the xstals for the radio. -
Can I use Morse code to identify myself on my GMRS handheld radio?
gortex2 replied to Slickii's topic in myGMRS.com
Every DMR and P25 system I have implimented CWID is done in analog. Thats one of the first things I set in my P25 stuff. It can send it "digital" over control channel also but it in analog 99% of the time. -
I agree adds can be a pain at some times but Rich pays to have this site on there webs by himself. I'm sure if you donate funds he can limit adds
-
I'm heading there in August myself. Kinda same area but we are coming in from the east via Mt Rushmore/Crazy Horse then into YNP and down into the tetons after. Planning 2 weeks in the area. I'll have my inreach but may throw a ham channel in just to hear stuff.
-
Coax at the bottom of a Tram 1486.....
gortex2 replied to Gnarlykaw's question in Technical Discussion
Apparently the loop idea is yet another ham based idea dragged into GMRS.... -
Personally I'd focus on feedline and antenna. I dont trust dbi numbers as they are normally no where near what they list. But then again this is normal in many areas.Those that talk about 200 miles on a hand held are talking to repeaters 5000' in the air or full of doggy do. In another thread I talked about my RT97 that I installed in my motorohome. I used a FG4500 antenna on my ladder at about 12' in the air. I had 10' of LMR400 down to the repeater. From Charlotte Motor Speedway Turn 4 camping I could get about a mile south and maybe 1 1/2 north of the track to my hand helds in a vehicle. My JK Midland 15 watt radio with 1/4 wave on fender mount could go about 2 miles south but could get almost 3 miles north. Looking at the terrain in that area you would see why. UHF is line of site as you know. More power at the antenna the better, but its also a balance. Your HT needs to get back there. People think a 25 watt repeater will make there hand helds talk 20 miles and they may hear but that doesn't mean they can get back to the repeater. In the LMR world we will balance the repeater. If a customer only has 4 watt UHF radios in a warehouse we will lower the repeater power to 5 or 6 watts.
-
Coax at the bottom of a Tram 1486.....
gortex2 replied to Gnarlykaw's question in Technical Discussion
If using long chunks of feedline they should be held in place with hoisting grips. That hold the cable to the mast or tower. https://www.talleycom.com/product/ACYHG-PL-12 -
I dont recomend it cause thats not how this works. Have you ever seen a police car, fire truck or ambulance with cophased antennas ? GMRS falls right in the middle of the commericla LMR world. Antennas built for LMR are built to be used as that antenna only. This isn't HF or lowband. There is really no need to do what yolur talking about. Buy the proper antenna and install it.
- 20 replies
-
- antenna
- co-phasing
-
(and 2 more)
Tagged with:
-
What is the leangth of the LMR400 you used ? Shorter the cable the better it will work. If you copuld mount the repeater just inside the shop 10' below the antenna I would think you would have much better results. Remember its still 3db of loss per 100' so even 50' of cable you will loose some power to the antenna. At 50' of cable you only getting about 4 watts to the antenna.
-
Coax at the bottom of a Tram 1486.....
gortex2 replied to Gnarlykaw's question in Technical Discussion
In my 40 years in the commercial LMR world I've never installed an antenna with a loop below it. Not really sure why folks think its needed. None of mine at home or at any of my tower sites have a loop. Most have a drip loop near the bulding enterence but many have proper antenna line feedthrus to eliminate water ingress at the location. -
You will will not gain anything by trying to cophase the antenna. In all reality the correct way is to use a power divder which just cuts your power in half to each antenna. I tried to use the Larsen on my JK but its a bit too tight for the hard top. Fine on the soft toft. I run a 1/4 wave on the front fender and it works just fine. Many use the cowl and on the JK its a good spot as well.
- 20 replies
-
- antenna
- co-phasing
-
(and 2 more)
Tagged with:
-
Finding Info for creating/installing new repeater
gortex2 replied to b156593's question in Technical Discussion
If the ham group has one there maybe talk to them first ? They would know what hurdles they need to go thru. -
You just got your GMRS license, now you want your own repeater?
gortex2 replied to coryb27's topic in General Discussion
No coordination. -
As was asked whats the site like. If your going on a public safety or commerical site that may change what you need to use. Also you may need downtilt on the antenna to be more effective. I run the DB404 and DB408 on all my repeaters. They are a good commercial antenna and used for public safety as well.
-
Personally I buy the manufactueres accessories as they are made for the product I'm using. All of my stuff lasts for years. Definately worth the money for quality equipment.
-
Avoiding interference building a repeater
gortex2 replied to WSCV533's question in Technical Discussion
If there are multiple repeaters in your area what is then eed to add another ? It seems most think they need a repeater but if there are useable ones in the area ues them. -
While I prefer Motorola repeaters the Kenwood TKR850 is a solid 2RU repeater. It can run of a 12V battery if needed as the main source is 12V. If I was lookiing I'd go for a MTR 2000/3000 myself. They are a solid 100% continuous duty repeaters but folks complain becasue of software.
-
Or if your really bored or really want a proper ground system read this... https://www.blm.gov/sites/blm.gov/files/Lands_ROW_Motorola_R56_2005_manual.pdf
-
TX needs to be 476.550. You will also need to get the input tones from the repeater owner by requesting access.
-
I agree there should be a little more organization and breaking up mobiles, portables and repeaters is a good idea, but lets face it this forum is a free for all anyway. Most threads start on one topic and quickly vear off topic or get reopened years down the road. So just enjoy whats here or go to another forum thats more technical.
-
https://www.bleepingcomputer.com/news/security/arrl-cyberattack-takes-logbook-of-the-world-offline/
-
"Request Node" page not working. Please Help.
gortex2 replied to WRZK971's question in Technical Discussion
Then you need to wait for Rich. -
"Request Node" page not working. Please Help.
gortex2 replied to WRZK971's question in Technical Discussion
As you were told in other posts the only person who can help you is @rdunajewski. If you have not sent him a request you need to. You can either send him a PM here or go to the mani page and use the contact button to contact him. This is also a hobby and not his paying job so it may take a bit to get a reply. -
The radio now ships with both enabled if ordered properly. If not it takes all of 15 seconds to get into radio central change the mode and push the job. In reality many folks that have the NEXT use it for SC and LTE with RC is just fine for what it is. If your not using the LTE function for mapping, tracking or SC then there really isn't a need to order a NEXT. The 8000 does everything and then some. There are many customers who prefer the Radio Central cloud version as it gives you the ability to change the radio on the fly from anywhere in LTE coverage. Even if an agency has RM to build a network to cover a state or country in wifi is not economical. LTE makes that function pretty simple. I can sit in any state in the US as long as I have LTE and push a file to my radio. If not I'll hook up the cable. Im not saying joe volunteer firefighter with 26 calls a year needs that function but can definately see where large agencies can benefit.