900MHz Frequencies to know and avoid Please be aware that the 900MHz band is not exclusive to hams, we are secondary users. Meaning you may encounter wireless phones (cordless phones which are still on the 900MHz band) as well as even wireless internet and so on. Frequency ranges to avoid...
Because the various solar conditions affect HF frequencies in different ways, calculations are provided for four HF band spectrums separately. Calculations take into account the indices, background radiation, day/night conditions, and also take into account both propagation and noise. While the band ...
All frequencies are shared. No frequency is assigned for the exclusive use of any amateur station. Station control operators cooperate in selecting transmitting channels to make the most effective use of the frequencies. They design, construct, modify, and repair their stations. The FCC equipment au...
All frequencies are shared. No frequency is assigned for the exclusive use of any amateur station. Station control operators cooperate in selecting transmitting channels to make the most effective use of the frequencies. They design, construct, modify, and repair their stations. The FCC equipment au...
The UV-5X3 was specifically designed as a Tri-Band transceiver. The internal filtering allows not only the traditional VHF and UHF frequencies, but also includes the 222-225 MHz Ham band for the US. . Case Design The UV-5X3 has the traditional case design, which allows me to use my hi...
VK Ham Radio Wall Chart (Updated October 2024) Posted on August 6, 2023Updated on October 8, 2024by adminCategories:Antenna's, Guides, Resources Download a free A3/A4 VK Ham Radio wallchart to print for ready reference formulas, Q-codes, Band Frequencies, DMR Talk Groups all on one ...
so it should not be used at all in the US. (PMR is a European standard.) The CB frequencies listed are not available on your typical low-cost VHF/UHF handheld but are useful if you have a CB radio. The so-called CB Freeband frequencies are never legal for use and your standard CB...
ARRL WEB WA9IL INFO PageUS Amateur Radio Band (ICOM) Repeaterbook.com Yaesu System Fusion K3ASI Frequency Chart of most used Modes HamCall.net Amateur Radio HAM CALL LOOK-UP Weather Station History : PLAINFIELD-JOLIETWeather Station History : BOLINGBROOKWeather Station History : CHICAGO...
This is why the CB band is sometimes called 11 Meters! Figure 2 – A chart to show the relationship between the CB band and others. On the left the chart starts out with power line frequencies (60 Hz), AM Broadcast (1MHz), the CB band (27MHz) and goes all the way up through ...
Unfortunately, on these higher frequencies, the antenna will have lots of lobes and deep nulls as per a standard doublet antenna. The military have used this type of antenna in the past, because of its ease of matching over a wide continuous frequency band, but it really is just a waste...