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What are the inputs for RF connection?
What is the RF input? Radio Frequency (RF), also called coaxial,
includes the VHF/UHF and CABLE jacks. These input terminals
transmit video and audio signals. They are used to connect an
indoor/outdoor antenna or cable for cable TV service
Electrical Characteristics:
Material | Shell | Brass, gold/nickel plated |
male center contact | Brass,gold plated | |
female center contacts | Gold plated, beryllium copper | |
Insulators | PTFE | |
Gaskets | Silicone Rubber | |
Crimp Ferrules | Copper Alloy,Nickel Plated | |
Electrical | Characteristic impedance | 50Ω, 75ohm |
Frequency range | DC-4GHz | |
Dielectric withstand voltage | 1500V RMS at sea level | |
Insulation resistance | ≥ 5000MΩ | |
Contact resistance | Center contact ≤ 1.5MΩ | |
Outer contact ≤ 1.0MΩ | ||
Durability | Mating Cycles ≥ 500 | |
Operating Temperature | -55 to +155 Deg C |
Product Details:
Main Specifications of RF Connectors:
Impedance: Almost all RF connectors and cables are standardized to
50_impedance. The only exception is that 75_systems are commonly
used for cable TV installation. It is also an important RF coaxial
cable connector with matching cable characteristic impedance. If
not, a discontinuity may be introduced and loss may result.
VSWR (Voltage Standing Wave Ratio): Ideally, it should be united. Good
design and implementation can keep VSWR below 1.2 in the range of
interest.
Frequency range: Most RF work now is in the range of 1 to 10 GHz, so the connector
must have low loss in this area. For cases above 10 GHz - where
there is a lot of work, and things are now in the 10 to 40 GHz
range - there are newer connectors to choose from. They are
expensive because the cable itself.
Insertion loss: This is connector loss in the frequency range of interest. Losses
are usually 0.1 and 0.3 decibels. Determining how critical a watt
(or fractional watt) is in most designs, even with such small
losses, must be minimized and included in the link loss budget. It
is especially important in low noise front-end when signal
intensity and signal-to-noise ratio are low.
Operating Cycle: How many connection/disconnection cycles can the connection
withstand and still meet its specifications? This is usually in 500
or 1000 cycles. Thread connectors, supplier-specified tightening
moment is an important factor in maintaining performance and
reliability.
Power: Power supply processing is determined by two resistance losses
(heating) and insulation breakdown. Although even decades of design
have focused on pre-processing dozens of watts, today's design
community focuses on low-power devices, such as mobile phones,
micro-cellular and nano-cellular base stations, video interfaces,
RF and gadgets. These are in the sub-1W range, so the connector can
be much smaller and its rated power is less constrained.
Our Company:
1. RY Electronics has over 10 years of experience designing and
manufacturing custom cable assemblies and antennas in large or
small volumes depending on your needs.
2. Our manufacturing facilities can build just about many types of
custom cable assembly(LVDS cable/Flat cable/RF cable/wire harness)
as well as GPS/WIFI/ISM/GSM/3G/4G antenna and RF connectors.
Our advantages:
1. Quality control:most of products have UL CE ROHS, certificate.
ISO9001:2008.
2. Low MOQ:5pcs/10pcs/20pcs/50pcs,depends on different items.
3. Fast Delivery Time :2~15 days, On-Time Delivery.
4. Good After-Sales Service: we could offer technical support or
return service in short time.
5. 1 Year Warranty.
FAQ:
1. When can I ?
We usually quote within 24 hours after we get your inquiry. If you
are very urgent to get the price, please call us or tell us in your
email so that we will regard your inquiry priority.
2. How can I get a sample to check your quality?
After price confirmation, you can require for samples to check our
quality.
3. How long can I expect to get the sample?
After you pay for the sample charge and we confirm the drawing with
each other, the samples will be ready for 3-5 days. The samples
will be sent to you via express and arrive in 3-5 days. You can use
your own express account or prepay us if you do not have an
account.
4.What’s your Shipping Methods?
By Sea ;By air (Shanghai port ) ;or by UPS ,DHL,FeDex,TNT etc.