Shively Labs FM Antennas and Accessories
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We'll see you at Texas Association of Broadcasting (TAB) 2016
August 10 - 12, in Austin!

... at Alabama Broadcasters' Association (ABA)
August 18 - 20!.

... and at the NAB Radio Show
September 21 - 23 in Nashville!
Product News

We'll be showing our newest antennas at NAB:

Model 6822
Model 6020 LT
Model 6812C

... and our new 12-inch, 10 kW filter,
Model 2712-3A!

Also, check out our new
[award-winning; see below]
Versa2une field-tunable FM antenna!

... and our new Model 6025 log periodic antenna!

4/11/13 at NAB:
New Cool Stuff Award for our
Versa2une field-tunable FM antenna!

SBA logo

Shively Labs is Maine's Small [Business] 2012 Exporter of the Year!
More information ...

Our parent company, Howell Labs, was just named SBA's 2013 Region I Subcontractor!
More information ...

Shively Labs has won a techINK 2010 Innovation Award for our Graphical Power Meter system!
Innovation award logo
NAB logo
Our Model 6020 antenna brings home the Radio World Coolstuff Award!

new"Shively trials new extended FM antenna in Brazil"

new"Shively’s new high power broadband on the air in South Dakota"

Paul Wescott obituary:"A damn good sense of direction, and a steady hand on the wheel, for over 30 years"

New technical bulletin: "Tips and Tricks to Make 222-G Work for You"

November-December 2011 Radio Guide article: "A Really Xtreme Build"

September-October 2011 Radio Guide article: "Shively Labs - Where FM Antennas Are Not Just a Sideline"

May-June 2008 Radio Guide article:
"Shively Labs Meets the Very Windy Mountain"

September 2007
Radio Guide articles:
"Shively Labs: Antennas That Work!" [279 kB]

"Shively 6014 Dual Hybrid Antenna Solves a Dilemma" [232 kB]

Archived articles

7/8" Non-Flanged Coax Components

  • All 7/8" components meet EIA standards for inner and outer conductor dimensions for 50-Ω components.
  • All insulators are made from virgin PTFE.
  • See technical bulletin "tb-linespecs" for complete transmission line specifications.
  • See technical bulletin "tb-coax_cutback" for inner to outer cutback dimensions.



Impedance: 50 ohms Outer Conductor Outside diameter: 0.875" (2.22 cm)
Maximum Frequency: 6000 MHz Inside diameter: 0.785" (1.99 cm)
Velocity Percent: 99.8% Inner Conductor Outside diameter: 0.341" (0.866 cm)
Peak Power Rating: 50 kW Inside diameter: 0.291" (0.739 cm)

Transmission Line
Non-flanged both ends

Each transmission line section comes without hardware or connectors. Insulators are placed approximately 24 " apart to prevent sagging.

6 ft (72" or 183 cm) long

Cut length inches


Each elbow comes with three insulators to support the inner conductor.

90° equal legs

  • Standard cutback
  • Approximate weight 1/4 lb (0.11 kg)
  • Approximate shippling weight 1-1/4 lb (0.57 kg)

Click on picture for dimensions.

Non-Flanged Adapter/Reducers

Use with non-flanged line only. Each comes with insulator and inner conductors. Connectors are silver-plated. Non-pressurizable; indoor use only.

7/8" to Type "N" female

  • Aluminum body.
  • Indoor use only - not pressurized.
  • Approximate weight 1/4 lb (0.11 kg)
  • Approximate shippling weight 1-1/4 lb (0.57 kg)

Click picture for dimensions.

7/8" to Type "N" female

  • Brass body.
  • Indoor use only - not pressurized.
  • Approximate weight 1/2 lb (0.23 kg)
  • Approximate shippling weight 1-1/2 lb (0.68 kg)

Click picture for dimensions.

1-5/8" to 7/8"

  • Connectors silver-plated
  • Indoor use only - not pressurized.

3-1/8" to 7/8"

  • Indoor use only - not pressurized.

Picture not yet available.

Non-Flanged Connectors

Use with 7/8" EIA non-flanged line. Connectors are silver-plated. Non-pressurizable; indoor use only.

Connector assembly

  • Connector silver-plated.
  • Indoor use only - not pressurized.

Click picture for dimensions.

Spare Parts

Hose clamp

  • Fits 7/8" transmission line.
  • Included with components.

Last updated: 10/15/15
Webmaster: Al Friend
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