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  1. Need a ham radio consult... interference?

    As far as the noise, does it change pitch with the engine? Ignition components are known to create RFI though not typically as much on FM. LED head/auxiliary lights are also known to cause RFI. I have also seen dash cams and charger cables that plug into the cig/power port cause RFI. Picket...
  2. Ham radio

    I used study guides from KB6NU ( No-Nonsense Study Guides - KB6NU's Ham Radio Blog ) for my Tech and General and Hamstudy.org for Extra. The ones by KB6NU are more like a book with some additional information to hopefully help you understand. Hamstudy.org is more question and answer...
  3. GMRS Radios

    The Midland MXT275 is common as the controls are in the mic like the Cobra75 CB. The radio body can be mounted anywhere in the vehicle using cat6 and a RJ45 panel mount as a mic extension. The radio isn't quite as important as the antenna, the higher the antenna is mounted the further you will...
  4. Mopar tailgate reinforcement and CB antenna mount

    Sure it's possible but it's not the best option especially if you run a spare tire.
  5. GMRS mobile unit.

    They have pushed the date on that radio back multiple times and I haven't seen any info on it on the FCC database. It's been a couple weeks to a month since I have checked though, will check again today. Wouxon has a GMRS mobile with a remote head and other features that makes it probably the...
  6. GMRS antenna mount

    It's not legal, a radio must be certified by the FCC to operate on particular radio services and a ham radio is not certified to work on any other radio service. In fact they aren't even certified by the FCC for ham radio, since hams are allowed to build their own radios it's up to the operator...
  7. GMRS Channel

    Channel 16 is still a repeater output, if I am listening on a repeater and hear you talking simplex you are now causing me not to be able to hear the repeater but how do I know you are talking simplex and not using the repeater should I want to talk to you? It's just a common courtesy to not...
  8. GMRS Channel

    I have seen channel 15 recommended, however since 15-22 are repeater outputs the available channel to run will likely vary my region/city as to not interfere with the repeater.
  9. Midland MicroMobile 15w GMRS Install

    Even if you get the same distance using a CB and GMRS... GMRS still wins. GMRS is FM instead of AM so it is less susceptible to RFI and sounds better. The antenna is super small, a 1/4 wave GMRS antenna is somewhere around 9". A 1/4 wave CB antenna is about 102". Sure you can get shorter CB...
  10. Midland MicroMobile 15w GMRS Install

    The MX275 actually has a speaker in the headset AND in the radio body, you select for the audio to come out of either OR both. See pg 25 of the user manual.
  11. GMRS antenna mounting

    No issues, coax is shielded with the signal travelling on the center conductor. It can't tell if another run of coax is next to it or not. I run 5 radios in my Jeep so I have coax travelling near each other and across each other with no issues.
  12. GMRS antenna mounting

    The higher the antenna the further your signal can go, but many Wrangler owners mount their GMRS antenna on ditch light mounts, fenders, hoods, etc and it seems to work fine for them for trail comms. Mounting it lower than the roof the signal will be blocked some by the body/roof/occupants so...
  13. GMRS antenna mounting

    Upon further thought regarding that mount specifically I would probably use a no ground plane antenna due to the coating, the fold over joint and the mounting points it likely won't make a good enough connection to the roof rack. If it was a different solid type mount then any antenna would...
  14. GMRS antenna mounting

    Sorry I wasn't more specific, it is a suitable place to mount because it does provide sufficient ground plane for GMRS and/or VHF-UHF ham. Whether you get an antenna that requires a ground plane or not it up to you. A no ground plane antenna will work better if it has a ground plane so really...
  15. Midland MicroMobile 15w GMRS Install

    There is an "overland" forum that recommends channel 15, it's the 1st channel in the high power channels. However, it could also be a repeater output (as it is in my area) so you wouldn't really want to use it as a simplex channel if you can keep from it at least while in range of the repeater...
  16. GMRS antenna mounting

    For a GMRS or 2m/70cm ham antenna it shouldn't be a problem. I run both on a roof rack without issue. I wouldn't run a CB antenna on the rack though and that appears to be what that antenna mount is for. You can get coax with a NMO end that has a 3/8" center so that it will fit the CB antenna...
  17. GMRS antenna mounting

    In ham radio repeaters are typically open to any licensed ham. In GMRS there are a lot of repeaters that are "closed" or "private" where you either pay the group to utilize their repeater or request access. Sure you could figure out the PL tone, but why stir the pot? They could shut down the...
  18. Install 6db Midland antenna and cable?

    Get you a grommet, your wires will rub against the metal firewall and it will cut through them and cause a short.
  19. Used Cooltech CB bracket to mount GMRS external antenna

    You can get a CB antenna with the NMO base, Larsen NMO27/Browning BR-140-b/PCTEL Maxrad MBL2700. You could also get an antenna switch that would allow you to select between the GMRS or the CB without disconnecting anything except the antenna to swap it out.
  20. CB/GMRS Dual Radio stack mount DYI.

    Nice job. Cutting the clearance kind of close there.



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