Mounting, Masts, Ropes & Physical Installation

Push-up fiberglass masts, Spiderbeam poles, ham towers (Rohn 25/45/55/65, US Towers), guy-wire geometry, fiberglass poles, halyards and line-throwing, climbing safety, the antenna installer's tool kit

Section	Topic
1	About this volume
2	Mast classes — telescoping, fiberglass, Spiderbeam, ham tower
3	Telescoping push-up masts
4	Fiberglass poles — Spiderbeam, MFJ, DX Engineering
5	Ham towers — Rohn 25 / 45 / 55 / 65, US Towers
6	Guy-wire geometry, tension, and dampers
7	Tower base — concrete pier, ground sleeve, post-installed anchors
8	Roof tripods and chimney mounts
9	Line-throwing — air cannon, slingshot, bow + arrow, drone
10	Halyards — Dacron vs nylon vs Kevlar
11	Climbing safety — the only really dangerous part of this hobby
12	The antenna-installer tool kit
13	DIY build — a 30 ft fiberglass mast field-portable setup
14	Commercial buys
15	Common gotchas and myths
16	Resources

1. About this volume

The antenna doesn’t work until it’s up. Masts, ropes, and mounts are mundane but the failure modes are catastrophic — collapsed towers, dropped antennas, dropped climbers. Where Vol 20 (Grounding) covers the electrical aspect of physical installation, this volume covers the mechanical aspect: the metal structures that hold the antenna above earth’s surface and the techniques that get the antenna up there safely.

The volume covers:

Mast class taxonomy (§2) — telescoping push-up, fiberglass, Spiderbeam, ham tower
Each class in depth (§3-§5) — sizes, weights, costs, load ratings
Guy-wire engineering (§6) — geometry, tension, damping
Tower bases (§7) — concrete foundations + base hardware
Roof mounts (§8) — tripods, chimney mounts, fascia mounts
Line-throwing techniques (§9) — air cannon, slingshot, drone
Halyard rope (§10) — Dacron vs nylon vs Kevlar
Climbing safety (§11) — the only really dangerous part of this hobby
The installer’s tool kit (§12) — what to bring
DIY 30 ft fiberglass mast (§13) — field-portable
Commercial market (§14)

This is a workshop-realistic volume. The numbers (mast weights, guy tensions, climbing harness ratings) come from manufacturer specifications and OSHA fall-protection standards. The “gotchas” (§15) are the failures that recur in amateur installations.

Cross-references: Vol 20 (Grounding) for the tower-base electrical bonding, Vol 22 (Weatherproofing) for sealing the connectors after installation, Vol 11 (Yagi-Uda) for the antennas that need ham towers, Vol 8 (Fixed verticals) for the radial-field-and-mast combination.

2. Mast classes — telescoping, fiberglass, Spiderbeam, ham tower

Four practical classes of antenna support, ordered roughly by load capacity:

Class	Height	Load capacity	Antenna types supported	Cost (mid-2026)
Push-up steel mast	30-50 ft	10-50 lb	Light VHF/UHF whips, dipoles, EFHWs	$80-300
Fiberglass pole	20-60 ft	5-30 lb	Wire antennas, EFHW supports	$80-400
Spiderbeam HD	30-60 ft	20-50 lb	Hex beam, OCFD, fan dipole	$250-600
Ham tower	30-150 ft	50-500+ lb	Beam Yagis, large arrays, multi-band stacks	$1000-15000+

The choice depends on:

Antenna mass and wind load: a 3-element 20 m Yagi weighs ~40 lb and has significant wind load → ham tower needed
Mounting permanence: temporary deployments → push-up or fiberglass; permanent → tower
Wind environment: high-wind locations need heavier construction with more guy tension
Operator commitment: ham towers are 5-10 year installations; push-ups are weekend projects

For most amateur use:

Wire antennas (dipole, EFHW, OCFD): fiberglass pole (e.g., Spiderbeam 12-18 m)
Single-vertical HF: push-up steel or fiberglass; height 30-50 ft
Single Yagi (3-5 element): small tower (Rohn 25G) or heavy-duty mast
Multi-element Yagi, beam stack: serious ham tower (Rohn 45G/55G/65G)
EME / contest stations: large ham towers with rotators, multiple yagis

3. Telescoping push-up masts

Push-up masts are the entry-level antenna support: 5-6 sections of heavy-wall painted steel that telescope from a folded ~6 ft to deployed 30-50 ft. Each section has a locking pin that engages when fully extended.

3.1 Construction

Material: heavy-wall painted steel (typically 12-14 gauge)
Sections: 5-6 telescoping pieces, each ~6 ft long
Diameter: ~2” at the base, tapering to ~1” at the top
Locking: section pins (steel locking pins that engage when each section is fully extended)
Base: typically a steel plate or pipe coupling for ground mounting

3.2 Workhorse push-up masts

Model	Height	Sections	Weight	Price (mid-2026)	Notes
Channel Master CM-1830	30 ft	6	35 lb	$80	The classic budget option
Universal Solar US-30	30 ft	6	30 lb	$120	Higher build quality
Universal Solar US-40	40 ft	7	45 lb	$200	Higher reach
Lightning push-up Mast	30 ft	5	28 lb	$150	Lighter weight
Solar Pier MFJ-1956	30 ft	6	30 lb	$100	MFJ’s version
Rohn AMP 50 ft	50 ft	8	50 lb	$250	Higher reach

3.3 Setup and tear-down

A typical push-up mast deployment:

Site selection: 4-6 ft clear from buildings, trees, power lines
Base preparation: a 30-inch deep × 12-inch wide hole; pour concrete for permanent installations or use a steel ground sleeve for portable
Deploy by pushing up: extend each section by pushing it up until the locking pin engages; ensure the pin clicks into place
Guy the mast (mandatory at 30+ ft): 3 guys at 120° azimuth, attached at the 1/3-from-top height
Mount the antenna at the top
Tear-down: reverse process; deflate the guys before retracting

3.4 Push-up mast load capacity

A 30 ft push-up mast typically handles:

Wind load: 50-100 mph rated (with proper guying)
Antenna mass: 10-50 lb (depending on construction)
Eccentric load: minimal (no rotator capability — the antenna spins on the mast)

The weak point is the section-to-section joint: telescoping joints aren’t load-bearing for eccentric/torsional loads. A Yagi on a push-up mast would impose torque that the joints can’t handle.

For Yagi installations, use a fiberglass pole (if the Yagi is light) or a real ham tower (if it’s heavy).

4. Fiberglass poles — Spiderbeam, MFJ, DX Engineering

Fiberglass poles offer:

Higher reach than steel push-ups (up to 60 ft)
Lower weight (typically 50-60% of steel)
No rotator capability (supports wire antennas only)
Higher cost than steel
Sun damage: UV-cracked over 5-10 years

4.1 Workhorse fiberglass poles

Model	Height	Sections	Weight	Price (mid-2026)	Notes
Spiderbeam HD 18 m	60 ft	7	18 lb	$450	Gold standard for field-portable wire antennas
Spiderbeam HD 12 m	40 ft	5	12 lb	$300	Smaller version
MFJ-1979	33 ft	6	8 lb	$110	Budget option, heavier-duty than DX Engineering’s MFGP
MFJ-1980	43 ft	7	10 lb	$150	Taller MFJ
DX Engineering MFGP-30	30 ft	6	8 lb	$90	Budget DX Engineering
DX Engineering MFGP-43	43 ft	7	10 lb	$130	Taller DX Engineering
Jackite 31 ft	31 ft	4	9 lb	$90	Compact crab-pole style
Jackite 25 ft	25 ft	4	7 lb	$70	Shorter Jackite

4.2 Spiderbeam HD as the reference

The Spiderbeam HD 18 m (60 ft) is the gold-standard fiberglass pole for amateur wire-antenna installations. The construction:

7 telescoping sections of heavy-wall fiberglass
Push-up sleeves with rubber gripper rings
Top section: ~1 cm diameter (light-load only)
Bottom section: ~5 cm diameter
Total deployed weight: 18 lb
Wind rating: 50+ mph

For a Spiderbeam 12 m or 18 m mast:

$300 / $450 for the mast
$50 for 3 guys (Synthetic Textiles 1/8” Dacron, 60 ft each)
$25 for 3 stakes (Eureka heavy-duty)
$25 for guy plate (DXE-MGSP)
Total $400-550 for a complete portable wire-antenna setup

4.3 Fiberglass vs steel

Property	Steel	Fiberglass
Maximum height	50 ft (heavier)	60 ft (lighter)
Maximum antenna weight	50 lb	20-30 lb
Weight (pole only)	35 lb (30 ft)	8 lb (30 ft)
Wind survivability	Better	Excellent
RF transparency	Mostly transparent (steel cross-section is small relative to λ)	Fully transparent (fiberglass is dielectric)
UV survival	Excellent (painted)	5-10 years (UV-cracking)
Cost ($/foot)	$2.50	$7-15

For wire antennas, fiberglass is the modern preference (no metal interaction, longer reach). For weighted antennas (small Yagis, verticals with weighted bases), steel is more appropriate.

5. Ham towers — Rohn 25 / 45 / 55 / 65, US Towers

Ham towers are the real antenna supports — engineered structures that hold weight, withstand wind, and support rotators for directional antennas. The dominant US brands:

5.1 Rohn Products (the canonical brand)

Rohn 25G (light-duty, 70 ft max self-supporting):

25 lb steel triangular tower, each section 10 ft long
Maximum antenna load: 50 lb
Maximum height: 70 ft (without guying)
Cost: ~$1000-2500 for a 50 ft installation

Rohn 45G (medium-duty, 90 ft max self-supporting):

32 lb steel triangular tower, each section 10 ft
Maximum antenna load: 100-200 lb
Maximum height: 90 ft (without guying)
Cost: ~$2500-5000 for a 70 ft installation

Rohn 55G (heavy-duty):

50 lb steel triangular tower, each section 10 ft
Maximum antenna load: 200-500 lb
Maximum height: 130 ft (without guying)
Cost: ~$5000-10000 for a 100 ft installation

Rohn 65G (contest-grade):

75 lb steel triangular tower, each section 10 ft
Maximum antenna load: 500 lb+
Maximum height: 150 ft
Cost: ~$10000-25000+ for a 130 ft installation

5.2 US Towers (motorized crank-up tilt-overs)

US Towers makes self-supporting crank-up towers that can be lowered and raised mechanically (no climbing required for maintenance):

US MA-40 (40 ft motorized): $2500
US MA-770MDP (70 ft motorized): $4500
US TA-65 (65 ft tilt-over): $3500

The crank-up tilt-over is the preference for amateur installations where:

The operator wants to lower the tower for maintenance
The lot is too small for guying (the tower stands alone)
The antenna is changed periodically

5.3 Tower selection criteria

Tower selection driver	Light → Heavy
Wind speed in your area	Higher wind → heavier tower
Antenna mass	Heavier antenna → heavier tower
Number of stacked antennas	Multi-element stack → heavier tower
Lot space for guying	Small lot → crank-up; large lot → guyed Rohn
Budget	Low budget → Rohn 25G; high budget → Rohn 55G/65G

For amateur HF Yagi installations, Rohn 25G is the practical entry-level choice; Rohn 45G is the mid-grade; Rohn 55G+ is for serious contesting/DXing.

6. Guy-wire geometry, tension, and dampers

A guyed tower (Rohn 25/45/55) needs proper guying to function. The wrong guying = collapsed tower in moderate wind.

6.1 Geometry

The standard guy geometry:

3 guys per level, at 120° azimuth from each other (equal spacing around the tower)
Guy point on the tower at 1/3 the height from the top (for single-set guying)
Anchor radius: typically 60-80% of the tower height (60 ft tower = 36-48 ft anchor radius)
Multiple sets of guys: required for taller towers (Rohn 45G+ usually has 2-3 sets)

6.2 Tension

Guy tension is the most-misunderstood parameter:

Under-tensioned guys: tower sways in wind, guys whip, antenna detunes
Over-tensioned guys: tower fatigues at the base from constant compression
Standard tension: 8-15% of the guy wire’s breaking strength

For 3/16” EHS (extra-high-strength) steel guy wire:

Breaking strength: 8,000 lb
8% tension: 640 lb
15% tension: 1,200 lb

Tension is measured with a guy-wire tension gauge (e.g., Loos guy wire tensioner — $200 commercial). Without a gauge, the rule-of-thumb: when you press your weight against the guy and it deflects ~6 inches, tension is about 10% of break.

6.3 Dampers

Long guy wires “gallop” in wind — they oscillate with high amplitude and can fatigue the tower’s base. The fix: dampers (heavy-wall pipe sections inserted in mid-guy):

2-3 ft of 1” steel pipe with weights at one end
Inserted in the middle of each guy
Mass adds damping to the guy’s oscillation
Reduces guy wear and tower base fatigue

Commercial dampers (Hy-Gain HBGD-3, $80 per set) are pre-built with proper weight and pipe geometry.

6.4 Guy hardware

Hardware	Specification	Source	Price
Guy wire	3/16” or 1/4” EHS steel	Local hardware	$0.50-1/ft
Guy anchor	Auger-in screw anchors or concrete-set	Local	$50-200 each
Turnbuckles	1/2” stainless	Local hardware	$30-80 each
Insulators	Phenolic or porcelain (above 50 ft)	DX Engineering	$20-50 each
Wire rope clips	1/4” or 3/8”	Local hardware	$5 each
Damper	Loos / Hy-Gain / DIY	Various	$50-150 each

7. Tower base — concrete pier, ground sleeve, post-installed anchors

The tower’s foundation is what holds everything in place.

7.1 Concrete pier (the standard)

For a Rohn 25G or 45G tower:

Hole size: 4 ft × 4 ft × 4 ft for Rohn 25; 6 ft × 6 ft × 5 ft for Rohn 45/55
Rebar cage: typically #5 (5/8”) rebar in a 4-7 cage configuration
Concrete: 5,000 PSI or higher
Cure time: 28 days minimum before loading

Engineered base designs (specified by Rohn for each tower model) are mandatory. The “back-of-envelope” rules above are starting points; consult the tower manufacturer’s drawings.

7.2 Ground sleeve

A ground sleeve is a galvanized steel insert that’s set in the concrete base. The tower’s bottom section bolts into the ground sleeve, allowing easy installation/removal without re-concreting.

Tower	Ground sleeve part	Source	Price
Rohn 25G	Rohn AG25G	Rohn dealers	$40
Rohn 45G	Rohn AG45G	Rohn dealers	$80
Rohn 55G	Rohn AG55G	Rohn dealers	$120

The ground sleeve adds ~$50-150 to the tower base cost but makes future maintenance much easier.

7.3 Post-installed anchors (rare)

For installations where new concrete isn’t possible (existing slab, rented property), post-installed anchors (drilled into existing concrete) can support smaller towers. Limitations:

Maximum tower height: 30-40 ft (post-installed anchors are weaker than cast-in)
Concrete must be at least 6 inches thick and unreinforced (to prevent rebar damage during drilling)
Hilti HSL3 or Simpson Strong-Tie Titen HD anchors are common

Used mainly for portable amateur towers in temporary locations.

8. Roof tripods and chimney mounts

For rooftop installations of smaller antennas, two common mount types:

8.1 Roof tripod

3-leg adjustable tripod that bolts to roof rafters
Sealed against weather with EPDM gasket
Maximum mast height above tripod: 10-15 ft
Maximum antenna load: 10-30 lb

The roof tripod is the standard for compact VHF/UHF antennas, small Yagis, and verticals. Suitable for shingle, tile, and metal roofs (with proper sealing).

8.2 Chimney mount

Stainless steel straps wrap around the chimney
Mast attaches vertically alongside the chimney
No roof penetration required
Maximum mast height: 10-15 ft above the chimney

The chimney mount is appropriate for older homes with masonry chimneys and homeowner-installable.

8.3 Limitations of roof mounts

Limitation	Workaround
Limited mast height	Use fiberglass extension above tripod
Limited antenna load	Use lightweight antennas (compact verticals, small Yagis)
No rotator capability	Use omnidirectional antennas only
Wind load on the roof itself	Smaller antennas, lighter Yagis

For Yagi installations heavier than 30 lb, use a tower or a wall-mounted bracket — not a roof tripod.

9. Line-throwing — air cannon, slingshot, bow + arrow, drone

For raising an antenna into a tree (the traditional fast-deployment option), several line-throwing techniques work:

9.1 Air cannon (PVC pump cannon)

1.5” PVC pipe + check valve + bicycle pump
Compressed air launches a projectile (fishing-line-tied) into the canopy
Range: 60-100 ft into a tree
Cost: $30 in PVC + $20 pump = $50 total

The Air Cannon Project (community-published plans) is the canonical DIY design. The cannon shoots a 1-2 oz weight on fishing line; the fishing line is then used to pull halyard rope over a branch.

9.2 Slingshot kit

The EZ-Hang slingshot kit ($80 commercial) is the popular pre-built solution
Wrist-rocket style with a fishing reel adapter
Range: 80-150 ft accurately
Higher accuracy than air cannon for small targets

9.3 Bow + arrow

Compound or recurve bow with a fishing-reel attachment on the arrow
Range: 100-200 ft accurately
Legal-but-risky; arrows that miss the tree can travel far
Cost: $100-300 for the bow + accessories

9.4 Drone

DJI Mini 2 or similar with a fishing-line attachment
Pilot the drone to the branch, drop the line
Range: 200+ ft (line-of-sight)
Modern preference for serious antenna installations
Cost: $500-2000 for the drone

The drone approach is used by W4DXX, K3LR, and many contest stations. The accuracy is unmatched (the pilot places the line exactly where wanted).

9.5 Line-throwing safety

Air cannon: don’t aim at people or windows; check that compressed air pressure is safe (under 60 PSI for hobby use)
Slingshot: same as bow + arrow safety
Bow + arrow: don’t shoot near houses; arrows can travel 200+ yards if they miss
Drone: maintain visual line-of-sight; FAA Part 107 if commercial

10. Halyards — Dacron vs nylon vs Kevlar

The halyard is the rope that raises the antenna into position. The wrong rope type leads to wire-antenna failure over time.

10.1 Dacron (polyester) — the standard

Tensile strength: high
Stretch under load: 1-2%
UV resistance: excellent (5-10 year service)
Cost: $0.25-0.50/ft (for 1/8” or 3/16”)
Color: typically black or olive (UV-stable dyes)

Dacron is the canonical amateur halyard. The standard sources:

Synthetic Textiles 0.187” Dacron double-braid ($0.45/ft) — the reference
DX Engineering DXE-DACRON ($0.50/ft) — slightly higher cost, same material
USRopes 1/8” Dacron ($0.30/ft) — budget option

10.2 Nylon — the wrong choice

Tensile strength: high (similar to Dacron)
Stretch under load: 10-20% (much higher than Dacron)
UV resistance: moderate (3-5 years)
Cost: cheaper than Dacron

Nylon’s high stretch is the problem: as the rope stretches under load, the antenna sags and detunes. The SWR drifts with temperature (the rope expands and contracts), making the antenna difficult to keep in tune.

Never use nylon halyards for permanent antenna installations. Use Dacron.

10.3 Kevlar / Spectra (UHMWPE)

Tensile strength: very high (3-5× Dacron)
Stretch under load: <0.5% (very low)
UV resistance: poor (1-2 years unless coated)
Cost: 3-5× Dacron

Kevlar and Spectra are used in high-performance applications (race sailing, climbing). For amateur antennas, they’re overkill — Dacron handles the tensile loads with much better UV survival.

10.4 Halyard sizing

For typical wire antennas:

1/8” Dacron: handles 100 lb, suitable for most amateur dipoles
3/16” Dacron: handles 200 lb, more durable
1/4” Dacron: handles 300 lb, for heavy installations or long runs

The halyard’s length matters too: plan for the full run from tie-off cleat to the support point to the antenna and back, plus 10-20 ft of service slack.

11. Climbing safety — the only really dangerous part of this hobby

Tower climbing is the one truly dangerous aspect of amateur radio. The injuries and fatalities are real; the safety standards are non-negotiable.

11.1 Climbing harness

Use a Class III tower harness (also called a “full-body” or “fall arrest” harness):

Engineered for fall arrest (drops the climber feet-first into the harness)
Distributes load across legs, chest, and back
Includes attachment points for double lanyards
Cost: $150-400 for a quality harness (Petzl, Black Diamond, Miller)

Do NOT use a rock-climbing harness for tower climbing. The geometry is different (rock-climbing harnesses load the waist; tower harnesses load the legs+chest). A rock harness in a tower fall arrest event causes hip/spine injuries.

11.2 Double lanyards

100% tie-off: the climber is always attached to the tower via at least one lanyard, even during transitions:

Two short lanyards (4-6 ft each), attached to the harness’s chest D-rings
One lanyard attaches above the climbing position; the other below
When moving up, attach the upper lanyard first, then release the lower

Lanyard materials:

Polyester rope: 1” wide, with energy-absorber section
Steel cable with shock absorber: heavy-duty for crank-up towers
Cost: $60-150 per lanyard

11.3 Tools and accessories

Tool lanyards: tether every tool to the harness so dropped tools don’t injure ground crew
Hard hat: protect from dropped tools (ground crew wears these)
Gloves: tool grip, no impact protection
Eye protection: sunglasses minimum, safety glasses for grinding/welding
Knee pads: tower legs are uncomfortable to stand on for long periods

11.4 Pre-climb safety check

Before climbing:

Weather check: no climbing in lightning storms, high wind (>20 mph), or rain
Harness inspection: check the harness webbing for tears, the buckles for damage
Lanyard inspection: check the lanyards for fraying, abrasion, or knots
Tools tethered: verify each tool is attached to the harness
Buddy on the ground: never climb alone; the ground crew can help if something goes wrong

11.5 The “ladder vs tower” alternative

For installations that need less than 25 ft of height, a ladder is safer than a tower climb:

A 20 ft extension ladder + a roof tripod is sufficient for most VHF/UHF installations
Ladder + tripod + harness while on the ladder = adequate safety
No tower-climbing equipment required

For ham tower installations (30+ ft), the climbing equipment is mandatory.

12. The antenna-installer tool kit

The complete kit for an antenna install:

12.1 Hand tools

Crescent wrenches (8” and 12”)
Ratchet socket set (metric and imperial)
Wire strippers (rated for #14 - #6 AWG)
Soldering iron + butane portable (Weller WSD81 or similar)
Solder (60/40 + flux)
Coax preparation tool (LMR-400 strip tool, $50)
Wire cutters (heavy-duty diagonal cutters)
Pliers (lineman’s pliers + needle-nose)
Knife (utility knife for stripping)
Markers (Sharpie, marking on rope)

12.2 Electrical materials

Coax-Seal (Universal sticks, 4-pack — for connector sealing)
3M Scotch 130C self-amalgamating tape (for connector wrap)
3M Super 33+ electrical tape (for connector overwrap)
Cable ties (assorted sizes)
Dielectric grease (Permatex DC-4)
Lockwasher washers, stainless screws, etc.

12.3 Antenna-specific tools

NanoVNA (or similar antenna analyzer — Vol 24)
SWR meter (Bird wattmeter or similar)
Portable antenna tuner (LDG Z-100Plus — Vol 17)
Manufacturer’s antenna manual

12.4 Climbing equipment (if tower work)

Class III tower harness
Double lanyards
Tool lanyards
Hard hat
Climbing gloves
Safety glasses

12.5 Tower-installation specific

Concrete mixer (for base pour)
Rebar tying tools
Shovels and post-hole diggers
Auger (for guy anchors)
Tensioner (for guy wires)
Level (for tower verticality check)

13. DIY build — a 30 ft fiberglass mast field-portable setup

This is the canonical SOTA/POTA-portable wire-antenna setup. About 1 hour of work plus practice deployments. Total cost ~$400.

13.1 BOM

Part	Specification	Source	Mid-2026 price
Spiderbeam HD 12 m mast	40 ft fiberglass	Spiderbeam (US distributors)	$300
Guy ropes (3)	Synthetic Textiles 1/8” Dacron, 50 ft each	DX Engineering	$30
Guy plate	DX Engineering DXE-MGSP	DX Engineering	$25
Ground stakes (3)	Eureka Heavy-Duty 12” stakes	Camping supply	$15
Carabiners (3)	Heavy-duty climbing-grade	Local	$10
Storage bag	Heavy-duty nylon, 6 ft long	Local	$25
Total			~$405

13.2 Construction (deployment)

Step 1: Lay out the components on the ground. Find a clear area at least 25 ft in diameter.

Step 2: Place the guy plate at the center; insert the 12 m mast’s base section into the guy plate.

Step 3: Attach the three guy ropes to the guy plate (one per direction at 120° intervals).

Step 4: Extend the mast by pushing each section up; lock each section’s clamp.

Step 5: Raise the mast to vertical; have a buddy hold it while you secure the guys.

Step 6: Stake the three guys at 120° azimuth, each at 60-80% of the deployed height (i.e., 25 ft from the mast base for a 35 ft mast).

Step 7: Tension each guy to ~10% of the rope’s breaking strength (about 12-15 lb of tension for 1/8” Dacron).

Step 8: Verify the mast is vertical with a level.

Step 9: Attach the antenna at the top, then deploy the antenna wire to the desired end-point.

13.3 Tear-down (reverse)

Release guy tension
Lower the mast to horizontal (with buddy)
Retract each section from the top down
Pack into the storage bag

A well-practiced operator can deploy or tear down in 5-10 minutes.

14. Commercial buys

Sorted by tier (USD, mid-2026):

Tier	Model	Type	Height	Price	Notes
Budget	Channel Master CM-1830	Push-up steel	30 ft	$80	Budget reference
Budget	MFJ-1979	Fiberglass	33 ft	$110	Budget fiberglass
Budget	DX Engineering MFGP-30	Fiberglass	30 ft	$90	DX Engineering version
Budget	Jackite 31	Fiberglass	31 ft	$90	Compact fiberglass
Budget	Lightning push-up mast	Push-up steel	30 ft	$150	Higher quality
Mid	Spiderbeam HD 18 m	Fiberglass	60 ft	$450	Gold-standard portable
Mid	Spiderbeam HD 12 m	Fiberglass	40 ft	$300	Smaller Spiderbeam
Mid	Universal Solar US-32	Self-supporting steel	32 ft	$700	Self-supporting alternative
Mid	MFJ-1956	Telescoping	30 ft	$100	MFJ tubular
Mid	MFJ-1980	Fiberglass	43 ft	$150	Mid-fiberglass
Premium	Rohn 25G + base + guy hardware	Ham tower	50-70 ft	$1500-3000	Amateur-light ham tower
Premium	Rohn 45G	Ham tower	60-90 ft	$3000-7000	Mid-grade ham tower
Premium	Rohn 55G	Ham tower	100-130 ft	$6000-12000	Heavy-duty ham tower
Premium	Rohn 65G	Contest-grade ham tower	130-150 ft	$12000-25000+	Contest-class
Premium	US Towers MA-40	Motorized crank-up	40 ft	$2500	Motorized; no climbing needed
Premium	US Towers MA-770MDP	Motorized crank-up	70 ft	$4500	Larger motorized
Premium	US Towers TA-65	Tilt-over manual	65 ft	$3500	Crank-up alternative
Premium	K0LWY tower kits	Custom	50-90 ft	$4000-8000+	Custom-engineered

What to avoid:

Aluminum “TV antenna” masts marketed as ham use — the wall thickness is inadequate
Used towers without proper inspection — internal corrosion is invisible until it fails
Tower bases without proper concrete engineering — generic dimensions can fail under load
“$50 amateur tower” listings — towers don’t exist at $50 in functional form

15. Common gotchas and myths

“I’ll just guy it next weekend” — unguyed pushup masts collapse in moderate wind (15-25 mph). Guy at deployment, not “later.” Standing the mast unguyed even briefly is risky in any wind.
“Spiderbeam is good for the hex beam” — yes, HD versions. The standard 12 m Spiderbeam will whip in wind and the hex doesn’t survive whip. Use the Spiderbeam HD or a real tower for hex beams.
“I can climb my own tower with a regular harness” — no, you can’t. Class III tower harness or hire a tower climber. The cost of a tower harness ($300) is much less than the cost of a tower-climbing injury.
“My tower is safe at 50 ft without guys” — no. Self-supporting Rohn 25G is rated to 70 ft with all engineering met (proper concrete base, no antenna load, no wind). Real installations with antennas need guying.
“I’ll just paint the steel mast” — paint chips and corrosion starts at the chip points. Galvanized or stainless is better than painted; for serious installations, hot-dip galvanizing is the standard.
“Roof tripod can hold any antenna” — limited to 10-30 lb antenna mass. Yagis above this need a real tower.
“My ground rod is the antenna ground” — no, that’s the safety ground. The antenna’s RF ground is a radial field (Vol 20).
“I can use any rope for the halyard” — no. Nylon stretches and degrades; Dacron is the only sensible choice for permanent installations.
“Tower guys don’t need to be tensioned to spec” — false. Both under- and over-tensioned guys cause problems. Use a tension gauge or rule-of-thumb (10% deflection under body weight).
“Climbing alone is fine if I’m experienced” — false. Climbing alone is a fatality risk; the buddy on the ground is what saves you in an emergency.
“I’ll set up the antenna first, then ground it” — no. Ground first, then deploy. The grounding system needs to be in place when the antenna goes up.
“My HF wire antenna doesn’t need a mast” — false; even a wire dipole needs at least 20 ft of height for usable performance. A wire on the ground is a poor antenna.

16. Resources

Rohn Products tower drawings + load tables — the canonical references for Rohn 25/45/55/65 installation.
US Towers technical documentation — for the motorized crank-up towers.
Spiderbeam HD specifications — gold-standard fiberglass mast docs.
OSHA fall protection guidance for tower work — 29 CFR 1926, Subpart M.
ARRL Antenna Book Ch. 26 (towers, masts, and supports) — amateur-focused reference.
Loos & Company tensioner gauge documentation.
Sentinel Tower Systems engineering guides — alternative to Rohn for similar specs.
Mexico Antenna Tower documentation (for crank-up alternatives).
W6PII climbing safety articles — amateur-published reference.
Petzl / Miller / Black Diamond safety harness documentation.
ARRL Operating Manual Ch. 25 — installation planning and execution.

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