- Which is better 50 ohm or 75 ohm?
- What is the best coax cable for ham radio?
- What is 75 ohm coax used for?
- Is LMR 400 the same as rg8?
- Is 1.5 SWR good?
- Can SWR be too low?
- What is acceptable SWR?
- What does RG 6 stand for?
- Can I use 75 ohm coax for CB?
- How many watts can LMR 400 handle?
- Can a TV antenna be used for ham radio?
- What is better rg6 or ct100?
- How can you tell the difference between 50 Ohm and 75 Ohm BNC?
- How far can a 5 watt ham radio transmit?
- How high does a ham radio antenna need to be?
- Can I use a satellite dish as a radio antenna?
- Is rg6 OK for satellite?
- How many watts can rg8x handle?
- Does coax length affect SWR?
- Is rg11 better than rg6?
- What is RG 8 cable used for?
Which is better 50 ohm or 75 ohm?
Especially when it comes to 50 Ohm vs 75 Ohm coax cables.
In short, cables are measured by impedance, how much resistance there is to the flow of electrical energy.
The smaller the Ohm, the better the performance.
So a 50 Ohm cable provides much better results than a 75 Ohm cable..
What is the best coax cable for ham radio?
10 Best Coax For HF Ham Radio ReviewsSteren 205-700 – Best Overall Coax For HF Ham Radio. … MPD Digital LMR400 (35ft) – Best Heavy Duty Coax For HF Ham Radio. … Cable Experts RG-8X Weatherproof Jumper – Best Budget Coax For HF Ham Radio. … RG58 15M Low Loss Extension Coax. … Wilson 400 N-N coax. … HYS TC – 110m. … Boobrie UHF RG58.More items…
What is 75 ohm coax used for?
Cables with 75 Ohm are mostly used for video signals, while 50 Ohm cables tend to be used for data and wireless communications. In coaxial cables, Ohm refers to the impedance, which is the measure of resistance in the cable to the flow of electrical energy.
Is LMR 400 the same as rg8?
LMR-400. LMR-400 is arguably the most common LMR cable, being a replacement for RG8. There is also a version called LMR-400-75, the only LMR cable capable of running at 75 ohm.
Is 1.5 SWR good?
SWR RANGE EXPLANATIONS. SWR 1.0-1.5: The ideal range! If your SWR is under 1.5, you’re in great shape. If you’re at 1.5 and really, really want to drop down to closer to 1 it’s likely possible to do with addition tuning, different equipment or a different mounting location.
Can SWR be too low?
An SWR too low over the whole band (1:1 for all 40 channels) can indicate a low efficiency antenna or lossy component. … If you have an antenna that’s say, three feet or less, and the SWR tunes great (less than 1.5) across all the channels than maybe your antennas feedline coax or the antenna coil is “lossy”.
What is acceptable SWR?
What is a good SWR reading ? The best reading possible is 1.01:1 (46dB return loss), but usually a reading below 1.5:1 is acceptable. Outside the perfect world a 1.2:1 (20.8dB return loss) is spot on in most cases. To ensure an accurate reading, it is best to connect the meter at the base of the antenna.
What does RG 6 stand for?
RG-6/U is a common type of coaxial cable used in a wide variety of residential and commercial applications. … RG was originally a unit indicator for bulk radio frequency (RF) cable in the U.S. military’s Joint Electronics Type Designation System. The suffix /U means for general utility use.
Can I use 75 ohm coax for CB?
RG-59 and RG-6 are 75 Ohm coaxial cables designed for cable television applications, they tend to have wide frequency response and low line loss. … You can use these cables with a 50 Ohm amateur radio antenna system, but because of the impedance mismatch, your SWR will be a little higher.
How many watts can LMR 400 handle?
Power Capacity (In watts 104 °F, 40 °C)MHz:30450LMR-400®2100550Click here to view POWER CHART FOR ALL CABLE TYPES
Can a TV antenna be used for ham radio?
Ham radio is not an inexpensive hobby, and you do need an outdoor antenna, way up as high as you can get it unless you live in an area surrounded by nearby repeaters. TV antennas can be carefully modified for your ham activity.
What is better rg6 or ct100?
The real difference is the loss, RG6 has solid polythene insulation, whereas CT100 is semi air spaced and larger diameter. The UHF loss is significantly less (about half as much). Use CT100 for aerial signals and it good for distribution too and fits F connectors properly.
How can you tell the difference between 50 Ohm and 75 Ohm BNC?
Basically, 50-ohm BNC connectors are used for older analog video applications. But for higher performance A/V applications like HDTVs, 75-ohm BNC devices are necessary. 75-ohm BNC connectors can, however, be used for analog purposes.
How far can a 5 watt ham radio transmit?
So according to our rule-of-thumb, 2 people around 6 feet tall using a 5 watt handheld two-way radio, used on flat ground with no obstacles, will have a maximum range of approximately 6 miles.
How high does a ham radio antenna need to be?
A beam type of antenna at a height of 70 feet or more will provide greatly superior performance over the same antenna at 35 feet, all other factors being equal. A height of 120 feet or even higher will provide even more advantages for long-distance communications.
Can I use a satellite dish as a radio antenna?
You can use a satellite TV dish antenna for amateur radio use but how you use it depends on what frequency you want to operate on. The satellite dish antenna is two basic parts, the parabolic reflector and the feed (at the focal point of the parabola).
Is rg6 OK for satellite?
RG6 is used for most satellite cables Properly made RG6 cable should give you the ability to get a stronger signal over a longer run, which is important for satellite TV since there’s a lot more signal there. Antennas are often OK with RG59 cable but do just fine with RG6 as well.
How many watts can rg8x handle?
700 wattsrg8x in the mobile is well safe for 1kw. anymore and id go with times lmr 300. with deadkeys of 700 watts.
Does coax length affect SWR?
“the length of the feedline will not change the swr it will change the apparent reading depending on what wave length you read the swr at. . just as adding a signifigant length of coax, the resultant loss will look like a lower swr.”
Is rg11 better than rg6?
RG11, because of its bigger size and better handling of attenuation, is superior when it comes to preserving signal quality than RG6. It’s also able to work at much higher frequencies than RG6 due to it having less signal loss. … RG6 is the more familiar standard, particularly when it comes to satellite cables.
What is RG 8 cable used for?
RG8 is a type of coaxial cable suitable for use in carrying radio transmission signals. They are found mostly in audio control rooms, radio stations or as connections for external radio antennas.