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Showing content with the highest reputation on 01/03/21 in Posts

  1. Lscott

    Antenna tuning

    From experience the best way to tune your antenna is when it is installed in its final location. Near by metal objects, height above ground etc. tend to affect the antenna. It might not be that convenient but you’ll know the match won’t change because you move the antenna location.
    2 points
  2. There are no certified part 95 radio that have murs also. As stated above there are some part 90 radios that will allow programming of both.
    1 point
  3. I would recommend you download the service manual for the radio and read through the manufacturers specifications. https://www.qrzcq.com/pub/RADIO_MANUALS/YAESU/YAESU--FT-60-Service-Manual.pdf The first thing that pops up is the frequency stability is only 5PPM. I believe on the GMRS frequencies it needs to be 2.5PPM. The second thing is the narrow band performance. The better radios, typically the commercial radios, have two filters in the receiver section, one narrow band and the other wide band. They are switched in depending on the band width programed. The cheap Chinese radios, and most of the Ham gear from the major manufacturers, save money by using the wide band filter for both. The only thing that gets switch is the max deviation setting and audio gain, increased for narrow band. That means trying to operate with closely spaced stations isn’t going to work so well. While the radio will “work” the poor frequency stability may cause issues with adjacent narrow band channels. All radios will drift in frequency with temperature. The better ones use temperature stabilized reference oscillators to minimize this. The receiver filter issue may result in interference from an adjacent narrow band station’s transmitter.
    1 point
  4. I've known Randy for quite awhile now, having been an active member of the NSEA for the past six years. Randy also put up the very first GMRS repeater in the nation, and was very instrumental in promoting GMRS and helping others across the country to get their repeaters on-line. Yes, Randy has the distinction of having -- of not the oldest -- then one of the oldest licenses: KAA8142. Interesting factoid, this format is identical to the old Class D CB license, such as mine from the early sixties: KQI2403. If anyone is truly interested, here is Randy's letter to the FCC. There is a lot of history revealed within it. https://www.nsea.com/fcc/Comments%20MD%2020-270.pdf http://www.nsea.com is the website for the NSEA.
    1 point
  5. Well gee I wonder if they will be sending back half the money for folks that got their licenses in the last 12 months.
    1 point
  6. This has already been tried and rejected. See: http://www.arrl.org/news/fcc-turns-away-petition-to-allow-hams-to-operate-non-certificated-transmitters-on-gmrs BTW, it has been previously suggested in this thread that price/cost is a factor in certified vs. ham equipment. I am not really sure that is true. It is hard to make a comparison since there are not many HAM single band UHF radios. But, for a rough comparison... GMRS - Midland MXT400 $250 Midland MXT115 & MXT275 $150 Btech 50X1 $200 HAM - ALINCO DR-435TMKIII $230 YAESU FTM-3207DR $169 So, I'd say while the GMRS radios are a bit more expensive, the price difference is not very significant and could well be accounted for by multiple factors like, lower demand, and certification costs. Also, you have to be careful to distinguish between radios manufactured for the ham radio market by vendors like Kenwood, ICOM, Yaesu, etc. and the low end radios labeled as "ham radios" because they are simply uncertified in any service. These include most of the CCRs
    1 point
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