Yes, these listings show the most significant specs. Especially useful
is the attenuation at 30 MHz. But what's lacking is data a 2 MHz for
that RG6-like cable with the steel center and Al shield. That loss
doesn't matter for RX antennas, but it CAN matter for TX antennas.
What can also matter is the shield resistance, which is the lower limit
of the transfer impedance, which is a measure of shielding
effectiveness. Transfer impedance is the ratio of differential voltage
inside the cable to common mode current on shield. The lower the
transfer impedance, the better the shielding.
73, Jim K9YC
On Sun,8/7/2016 12:21 PM, Kevin wrote:
So were all talking about the same stuff.
Manufacturer's Part Number: /DXE-213U-1000/
Coaxial Cable Type: RG-213/U
Coaxial Cable Jacket Outside Diameter: 0.405 in.
Coaxial Cable Jacket Material: PVC, Non-contaminating, Type II-A
Center Conductor Gauge: 12.5 AWG
Center Conductor Material: Bare copper
Center Conductor Construction: 7 strand - 0.0296 in.
Dielectric Material: Solid polyethylene
Dielectric Outside Diameter: 0.285 in.
Shield 1 Construction: Braided
Shield 1 Material: Bare copper
Shield 1 Percent Coverage: 96-97
Loss Per 100 ft. at 30 MHz: 1.0 dB
Velocity Factor Percentage: 66
Coaxial Cable Length: 1,000 ft.
Assembled: No
UV-Resistant: Yes
Direct Bury: Yes
DXE Part Number: *DXE-11U*
Coaxial Cable Type: RG-11/U
Coaxial Cable Jacket Outside Diameter: 0.405 in.
Coaxial Cable Jacket Material: PE, Type III
Center Conductor Gauge: 14 AWG
Center Conductor Material: Bare copper
Center Conductor Construction: Solid
Dielectric Material: Gas injected foam polyethylene
Dielectric Outside Diameter: 0.280 in.
Shield 1 Construction: Braided
Shield 1 Material: Bare copper
Shield 1 Percent Coverage: 97
Loss Per 100 ft. at 30 MHz: 0.7 dB
Velocity Factor Percentage: 84
Assembled: No
UV-Resistant: Yes
Direct Bury: Yes
//*C*oaxial Cable Type: RG-6/U
Cable Connector End 1: Type F, male
Cable Connector End 2: Type F, male
Coaxial Cable Jacket Outside Diameter: 0.300 in.
Coaxial Cable Jacket Material: PVC, Non-contaminating, Type II-A
Center Conductor Gauge: 18 AWG
Center Conductor Material: Copper-clad steel
Center Conductor Construction: Solid
Dielectric Material: Gas injected foam polyethylene
Dielectric Outside Diameter: 0.178 in.
Shield 1 Construction: Aluminum bonded polyester tape plus aluminum braid
Shield 1 Material: Aluminum foil/aluminum braid
Shield 1 Percent Coverage: 100
Shield 2 Construction: Aluminum bonded mylar tape plus aluminum braid
Shield 2 Material: Aluminum foil/aluminum braid
Shield 2 Percent Coverage: 100
Loss Per 100 ft. at 30 MHz: 1.1 dB
Velocity Factor Percentage: 83
UV-Resistant: Yes
Direct Bury: Yes
This what gets installed by Mediacom cable and the only one of the
four with a foil second shield. Comscope sells a gazillion miles of
this stiff. Because of the smaller diameter, .300 inches compared to
4.05 I don't see how this could be mistaken for RG11U.
DXE Part Number: *DXE-8U-1000*
Coaxial Cable Type: RG-8/U
Coaxial Cable Jacket Outside Diameter: 0.405 in.
Coaxial Cable Jacket Material: PVC, Type I
Center Conductor Gauge: 11 AWG
Center Conductor Material: Bare copper
Center Conductor Construction: 7 strands of 21 AWG
Dielectric Material: Gas injected foam polyethylene
Dielectric Outside Diameter: 0.285 in.
Shield 1 Construction: Braided
Shield 1 Material: Bare copper
Shield 1 Percent Coverage: 95-97
Loss Per 100 ft. at 30 MHz: 0.9 dB
Velocity Factor Percentage: 81
Coaxial Cable Length: 1,000 ft.
Assembled: No
UV-Resistant: Yes
Direct Bury: No
I have never used RG8U. I prefer RG213.
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