Jump to content


  • Posts

  • Joined

  • Last visited

  • Days Won


Everything posted by axorlov

  1. Clean it, then. Ugly or not, it's subjective, though. I found BTech's look tacky. Besides, are you in for the checkers or for the ride?
  2. For $75 + $8 + <some elbow grease> you can have all of that and monitor 250 frequencies: https://www.ebay.com/itm/KENWOOD-UHF-FM-TRANSCEIVER-RADIO-TK880H-1/114641908198?epid=1708025024&hash=item1ab130b1e6:g:SOAAAOSwlstgCRtB
  3. 1. Exists, called search button.2. Who cares, really. Those who do, they use search button. CLOSED vs open, linking, and tying resource with the same stuff??? No one owes nothing to nobody. 3. Search button! Also, consider that no one owes nothing to nobody and does not have to disclose, advertise, publish or invite to anything. 4. Audio feeds are up to owners. Or listeners. No one owes anyth... but let's not repeat that again. And the best part tonight: who is going to be a classifying body? How it is going to be created? The edict from the King? The Thunderdome fight? The communal vote? Who gets to vote? Why is this guy's vote is equal to that guy's vote? What if I don't agree, am I still wrong?
  4. Get outside. Hang up slim jim off the tree or fence or anything. Repeat the test.
  5. That's most likely the case, people do not speak loud enough for full wide-band deviation. But at any rate, even with distorted sound, speech is easy to understand.
  6. There is narrow-band vs wide-band issue. GXT1000 is narrow-band,while most of the repeaters are wide-band. You certainly will be able to hear repeater output, but if it is wide-band it will sound distorted on GXT1000.
  7. dxengineering.com has several magnetic mounts with RG8X. Also ebay.
  8. Sounds about right. Here is the attenuation chart, that agrees with the online calculator: https://w4rp.com/ref/coax.html Better cable would be RG8X and LMR-240. I tend to use LMR-240 for permanent car installs, where you do not move radio around often and NMO mount is drilled through the roof. RG8X is more robust cable, suites better temporary installs with mag-mounts, but loss is higher. RG58U is not a good cable for UHF. And if it's in a car, you certainly don't need 20'.
  9. Thanks! Very good hands-on. But was it narrow-band or wide-band with the 805G and Motorolas? I'm guessing narrow-band, since you have GXT1000 in the mix. Also, with the GXT1000, did you use the 5W channels or the 0.5W? I'm guessing again the full-power, judging by the results.
  10. With 5/8 wave it should be a coil that does matching, to balance out the big -jX component, but I may be wrong here - working from memory, and too lazy to check on internets. "Colinear" usually means 2 or more sections in line, but also could mean that Midland marketing dept found a cool scientific-sounding buzzword. You are absolutely right about adjusting to minimum reflected power. I think moving antenna back and forth on a lip mount will not make a big difference, if any, but worth tying. Good practices means that your soldering and crimping is good and no sharp bends of the cable. I tend not to use RG58U in my car installs, I prefer RG8X or LMR-240. However, if you already have cable and connectors, it's fine. On 8' length difference in attenuation is negligible.
  11. That's something I had lingering in my mind after reading your links and studying DTR/DLR thing. I'll leave hacking for some time later. The first thing (ok, second) is of course, to plug in simplex repeater and bring the whole contraption high up on a makeshift mast. That's could be a lot of fun, I already see it.
  12. And also, what would you listen to 100000 years ago?
  13. Yeah, top, bottom, side, other side... Not front. Btw, on TK-880 it's reversible, you can have it on the top or the bottom.
  14. SWR 1:1 does not necessarily means that your antenna is at resonance. It means that it's well matched. Assuming there is no big loss in your feed line (that eats up forward and reflected power), the lower SWR, or reflected power, the better the match. And antenna does not have to be resonant to be an efficient radiator. Resonant quarter-wave above ideal ground has 36 Ohm impedance and SWR 1.5:1 when connected to 50 Ohm feedline. So, tune for lowest SWR, i.e. for lowest reflected power. Use good practices to ensure minimal possible loss in the feed line.
  15. If you want to place stationary antenna at home, something like this should work (since you already confirmed you can connect with mag mount): https://www.ebay.com/itm/Browning-BR-6356-UHF-450-470-MHz-Yagi-Antenna-N-Female-100-watts/222872296126?hash=item33e4395abe:g:UOMAAOSwMEBaoG7e Actually, since you can connect with mag mount on the roof your truck, the simple unity gain antenna on the 10' - 20' mast above the roof of your house might be just fine. I used BR-6140 with great success: https://www.newegg.com/p/050-009P-00017?Description=BR-6140&cm_re=BR-6140-_-050-009P-00017-_-Product&quicklink=true
  16. 8180 has front-mounted speaker while 880 has side-mounted speaker, thus 8180 is easier to fit into car dashboard. 880 has to be located with speaker not blocked, or remote speaker is needed. 8180 has removable head, making it even more flexible for in-car installation.
  17. Part 90 vs 95E (and 95A pre-2017) in one sentence: Technical specs are identical (stability, deviation, etc); Part 90 UHF equipment covers roughly from 400MHz to 500MHz; Part 95E (A) covers few channels in 462MHz and 467MHz. Some older Part 90 equipment are also Part 95A, like Kenwoods I listed above.
  18. David, thank you very much for the very comprehensive deep dive into DTR-DLR world. I will wait for my newly bought DLRs to come before asking more questions.
  19. If only for GMRS, I'd go with one of the second-hand commercial mobiles, like Kenwood TK-860, TK-880, TK-8180 or similar (like 8102), or with offerings from Motorola. Much much cheaper, and by a lot of circumstantial evidence, perform better.
  20. Try this on UHF, and Canada will be just fine, but the colony on Mars will object.
  21. I actually bought a pair of DLR1060 on ebay today. Going to compare performance with GMRS handhelds and mobiles. The usage mode is outdoors: camping, hikes, mountains, woods. It is not very clear to me how 900MHz at 1W with spread-spectrum and error correction would perform against ole wide-band FM at 4W (and at 40W). Of course, the moment I bought DLRs, the cheap chargers disappeared from ebay. But I'm not in rush, will wait for something below $30. So, what you, David, are saying, is that the older DTRs do not have this 4-digit ID, mentioned in DLR manual. And to make the old DTR work with new DLR is to program talk groups into DLR. The programming the 4-digit ID into old DTR will not work because there is no 4-digit ID. Right? Wrong? I order to introduce the older DTR into the network of DLRs I will need to delete the 4-digit ID in DLRs and program the talkgroups, is this correct? At this moment of time my interest is purely academical because I do not have old DTR, and DLRs are not here with me yet.
  22. It might be that people do not want to talk to you. Ok, I'm saying it in a jesting way, but the matter is serious. GMRS is where people talk inside their established group. Not always, but mostly. Depending on your locality and the crowd on the local repeaters, if they are welcoming to others. So, let's start at the beginning. Your 805G is repeater-capable. Do you have correctly programmed it for the repeater access? I.e. your transmission frequency is 5MGz higher than your receiving frequency (Ch 15) and the tone is programmed correctly? If you programmed repeater correctly, you should be able to "kerchunk" it. It is frowned upon practice, and for a good reason (it is illegal to transmit without ID, and it's annoying as hell), but if you do it once/twice nobody will notice. Hopefully... It goes like this: press PTT for one second, and listen for a "repeater tail" - bit of static or roger beep. If you hear it - good, you are in.
  • Create New...

Important Information

By using this site, you agree to our Terms of Use and Guidelines.