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50 watts simplex. I'm confused.
SUPERG900 and 3 others reacted to AdmiralCochrane for a topic
As long as you are not transmitting on the 467.000 repeater input part of the band you are not interfering with a repeater. Its not a prevailing opinion, its an FCC reg. The 50 watt simplex frequencies are the same as the repeater output frequencies, they are shared. 7 miles would be possible with well elevated antennas. A directional antenna isn't that much help in the GMRS frequency band if there are obstructions. Height is might. I have made 11 mile VHF simplex contacts with my Anytone 50 watt VHF mobile, UHF/GMRS is harder without pure line of sight.4 points -
As stated by others, 462.xxx0 frequencies are 50W frequencies, shared by simplex users and repeater outputs. These channels can be used in wide band, if your radio allows it, or narrow band configuration. Wide band may give you tiny bit of edge over narrow band. Mind Line A restrictions (462.6500, 462.7000), if you are close to Canadian border. Good operating practice should be used, i.e. monitoring channel for a second-two with tone squelch off and avoiding stepping on somebody having conversation. Scanning these 8 frequencies for a couple of days will show if you already have busy repeater(s) and allow you to chose less busy channel for your own communications. Good communication plan should also include reserve frequencies in case of interference or/and busy channel.2 points
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A scanner antenna can be thought of as a jack-of-all-trades, master-of-none antenna. This means the antenna, by design, prioritizes utility on many frequencies over optimum performance on any frequency. Since a scanner may have only one antenna input yet it can scan a wide range of frequencies, the ideal scanner antenna can be thought of as one which provides equal performance over a wide frequency range. Yes, a scanner antenna can be used for transmit, just as any piece of wire can be used for transmit. How well it works, and how long you radio will last using it is purely a function of the antenna’s electrical and radiation characteristics on the frequency in question. If the SWR it presents to the transmitter is within acceptable range for the transmitter, you are good to go. The simplest and most foundational of all antennas is the dipole antenna. Such an antenna resonates quite optimally at one frequency and thus performs exceptionally on it. Near that frequency it does OK to, but its performance degrades commensurate with the difference in frequency from its resonant value. The range of frequencies in which the antenna presents a certain range electrical characteristics to the radio that is deemed acceptable is referred to as its bandwidth. For example, my commercial GMRS antenna as a bandwidth of 10MHz and it only performs well in that range. If you measure the performance of any antenna over a wide range of frequencies you will see an electrical pattern that mimics a mountain range. The wider the range measured the more mountains (variation) you will see. And each design variation will exhibit different patterns of peaks and valleys. Designing antennas to work over a wide range is a major exercise in compromise. Sacrifice this to get that. That will include cases where some frequencies, even ones near one another perform quite differently, most notably in specialized antennas. A scanner antenna is a specialty antenna. Hope this helps. Michael WRHS965 KE8PLM1 point
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You can also print the page directly from the form. That's what I done for each of my six antennas for my "station records". ?1 point
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50 watts simplex. I'm confused.
AdmiralCochrane reacted to mbrun for a topic
If you purchase a non-repeater-capable Part 95e transceiver it will come with (22) simplex frequencies you can use. These include: - (7) 462.xxxx interstitial frequencies. (Ch 1-7) - (7) 467.xxxx interstitial frequencies. (Ch 8-14) - (8) 462.xxxx main frequencies. (Ch 15-22) All 22 of these are 100% shared with our license-free FRS simplex only siblings. The (8) 462.xxxxx main frequencies however are also the exact same ones authorized for use as repeater outputs. If you purchase a repeater-capable part 95e HT transceiver your radio will likely come factory programmed with the aforementioned frequencies pre-programmed as channels 1-22. The radio will likely also come factory programmed with 8 repeater pairs, pre-programmed as channels 23-30. Channel 15 and 23 allow you to listen to exactly the same frequency. However, press PTT on channel 15 and you will be transmitting on 462.5500. Press PTT on channel 23 and you will be transmitting on 467.5500 (one of the 467.xxxx main channels). Channel pairs 16/24, 17/25, 18/26, 19/27, 20/28, 21/29, 22/30 are similar. The core difference between a simplex-only and a repeater-capable GMRS transceiver is that the repeater-capable one is capable of and permitted to use (8) additional frequencies, the 467.xxxx main channels, to support use of two different frequencies per channel for communication through a repeater. One for Tx, One for Rx. Bottom line, by design and by rule, the 462.xxxx main channels are the holy-grail of GMRS. They are the frequencies which are allowed to be used with the most power. They are also the frequencies which may be used for radios operating in simplex or duplex (repeater) modes. A review of article “§ 95.1763 GMRS channels” hopefully provides adequate clarification over the permitted use of our treasured frequencies. Hope this helps. Michael WRHS965 KE8PLM1 point -
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The ARRL has provided a free "RF Exposure Calculator" for everyone to use. It is simple and straightforward: RF Exposure Calculator (arrl.org) More information and resources may be found here: RF Exposure (arrl.org)1 point
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Nagoya NA-771G
Marius1195 reacted to MozartMan for a topic
I bought this one for my 905G. It should be good for 805G. https://www.buytwowayradios.com/wouxun-smo-002.html1 point -
I also just talked with Midland tech support about the new 50W mobile. They said there will be an MXT500 (regular mobile version) and an MXT575 version with all controls on the microphone, like the MXT275. Tech Support (Sara) could not provide a release date but said it would definitely be in 2021.1 point
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Midland MXT500
FT726 reacted to AdmiralCochrane for a topic
Yes, the software is open, its not licensed.1 point -
Midland MXT500
FT726 reacted to dwmitchell61 for a topic
It should.... And will have NOAA channels as I understand. My MXT400 came from the factory with the repeater channels set to 25kHz (wideband), contrary to the rumors circulated by those with a bias against Midland radios that it does not support wideband. It is simply amazing that those who do not own one make all these claims as though they are the "gurus" chanting the mantra from the mountain top upon which they seated themselves. It will also do 20kHz if you like. It can also be software programmed to do split tones, CTSS and DCS even, on same channel. You must buy the DBR1 cable from Midland and they give you a limited-life link to the software download when you call them. I programmed mine to display my call sign on startup All my simplex channels are programmed as wideband (25kHz). . I programmed the four local repeaters into the empty channel slots that were empty for the 0.5W FRS channels, displaying the repeater names OR CITY, TABOR, OVRLOOK and GRESHAM when they are chosen. Someone also said programming the radio invalidates the certification. Midland denies this. The radio was certified under Part 95A and as such, is grandfathered under the new parameters specified under Part 95E. As long as the radio is still operating within the Part 95E specifications when programmed, you are fine. It does what I want., and I am satisfied with my purchase. It doesn't have 10 billion "bells and whistles" to clutter up the menus and programming like some other radios. It doesn't have FM, but my car and my Sangean WR-11 and ATS-909 take care of that.1 point