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Lscott

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Everything posted by Lscott

  1. Lscott
    Are the filters too tight to try and get it on the Ham 33cm band? At least the XPR6580's with a CPS in memory hack you can do it with no mod's to the radio.
  2. Lscott
    Which are NOT Part 95E certified BTW.
  3. Lscott
    If all he needs to do is simply boost the battery voltage the following item is what he's looking for. https://mfjenterprises.com/products/mfj-4416c For portable power where you need 120VAC I have one of the below 300 watt inverters. Some equipment will malfunction when you try to run them off one of the cheap modified sine-wave types. Mine is discontinued but there are newer models. https://gopowersolar.com/products/300-watt-pure-sine-wave-inverter/ New models. https://gopowersolar.com/product-category/inverters/pure-sine-wave-inverters/
  4. Lscott
    What issue is the lower voltage causing you’re trying to fix?
  5. Lscott
    As pointed out you likely need a real band-pass/band-reject type duplexer. The cheap simple ones are just band-reject. If your repeater is built using two radios you can add a band-pass filter inline between the RX radio and the duplexer. You can try an inexpensive one to see if that helps. https://www.409shop.com/409shop_product.php?id=125434
  6. Lscott
    I mentioned in a previous post some commercial radios have a signal strength measurement feature, RSSI, built into them. This is NOT the simple bar graph display you commonly see. https://forums.mygmrs.com/gallery/image/302-nx-1300duk5-rssi-display/?context=new A number of radios have the ability to measure the RX signal strength during normal operation, typically for trunking systems with multiple TX sites. The radio can be programmed to use the site with the strongest signal.
  7. Lscott
    NX-1300DUK5 RSSI Display

    From the album: Misc. Radio Gear

    A little known feature in some commercial radios is a very useful RSSI, Received Signal Strength Indicator, meter. The example is my recently acquired Kenwood NX-1300DUK5 radio. The RSSI feature is listed as "maintenance" as one of the selections for the configurable menu items. I added it to one of the user configurable menus. The reading should be in dbm. The current reading shown is -113dbm on the display. The main use for this type of signal strength display is doing repeater coverage area surveys. It gives you an idea of how well a repeater is getting into a particular area. Also some repeater systems use multiple remote receivers with a signal strength "voter" feature, which will pipe the audio from the receiver with the best signal strength to the transmitter. A few radios can use the RSSI info when doing site roaming. When the signal strength drops below a preprogrammed level the radio will start scanning for another repeater with a better signal.
  8. Lscott
    Don't keep it in your back pocket. Also make sure you have the VOX feature disabled if you do.?
  9. Lscott
    You might not need to do that. There are a few select radios that include a field strength measurement feature right in the radio. I'm not talking about the crappy bar graph display either. On some of my radios there is a "maintenance" menu where it will show the RX signal strength in dbm.
  10. Lscott
  11. Lscott
    This is an old thread but a few more frequencies are mentioned in it on UHF for specific locations. https://forums.radioreference.com/threads/noaa-uhf-repeaters.253483/ Also I have a list of VHF frequencies used for weather broadcasts. See attached file. Two are listed for Canada. There is one for the US in the 163 MHz range you don't find commonly listed. I have no idea if that last one is really used. US and Canada Weather Channels.pdf
  12. Lscott
    Well there is one other way to avoid FRS chatter that's 100 percent guaranteed to work. Find the power control button or knob on your radio and move it to the off position. No programming required.
  13. Lscott
    Yup. When I was out of college for a bit I was doing field service work on the company’s equipment. I learned real quick if it isn’t broke and you start screwing with it then it will end up broken almost for sure.
  14. Lscott
    This is just a wild guess but you might be experiencing a case of intermod, inter-modulation interference. https://www.everythingrf.com/community/what-is-intermodulation-distortion https://static1.squarespace.com/static/53062f8de4b09e63a23ce552/t/532689a3e4b0825c71c80bc5/1395034531223/what_is_intermodulation_interference.pdf
  15. Lscott
    Lots of money laying on the grass there.?
  16. Lscott
    The official NOAA weather channel frequencies are on VHF. However some have discovered that the studio to transmitter site audio link at times is done on selected UHF frequencies. You can look at the attached file and see what kind of luck you have with it. NOAA UHF Weather Link Frequencies.pdf
  17. Lscott
    I would HIGHLY recommend you read over the GMRS service rules. It will save you asking some questions later on. https://www.ecfr.gov/current/title-47/chapter-I/subchapter-D/part-95/subpart-E Getting familiar with the channel frequencies/channel numbers/power level allowed helps when reading various posts. https://en.wikipedia.org/wiki/General_Mobile_Radio_Service Finally getting the hang of how the whole repeater thing works helps a lot when trying to figure out how to program your radio. This topic seems to trip up a lot of first time users. https://woofthebeatenpath.com/how-do-you-use-a-gmrs-repeater-for-longer-range/ https://www.youtube.com/watch?v=kxbL2g4E7KU If you have any more questions we're all right here. ?
  18. Lscott
    Yeah, the house keeping employees at a local mall are doing exactly that, since 10/2015.
  19. Lscott
    Nope.
  20. Lscott

    From Canada

    Lscott replied to a topic in Guest Forum

    In Canada you're limited to 2 watts max. You also don't have repeater frequency access either. Your GMRS service is basically like the FRS service in the US. Also Industry Canada wimped out and changed their mind about doing a MURS VHF service so you don't have that option either. One thing that people have done is use higher power VHF radios on the so called Radio Controlled Roads that are found out on the west side of Canada. Likely not really legal. Canada GMRS-FRS Rules.pdf Canada Annex E - GMRS and FRS.pdf Canada VHF LADD Channel List .pdf
  21. Lscott
    You could try switching over to use MURS radios. Those are also license free. https://en.wikipedia.org/wiki/Multi-Use_Radio_Service Also fortunately there are a few affordable ones out there so you don't have to mess around with looking for an old Part 90 radio that would be grandfathered in, received the operating grant before MURS was created. https://baofengtech.com/product/murs-v2/ https://www.buytwowayradios.com/business/murs-radios.html
  22. Lscott
    This topic has been beaten up plenty before in an older thread. https://forums.mygmrs.com/topic/3523-what-is-a-fixed-station/
  23. Lscott
    Thanks. That's why more expensive than I'm willing to pay even used for a hobby. If I needed one for personally owned professional use that would change the economics. None of my radios falls into the later category.
  24. Lscott
    About how much do you have invested in the radio and accessories so far if you don't mind my asking?
  25. Lscott
    Some radios do. My old FT847 sat radio has an "N" connector for the UHF port.
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