Price: $1,865.00
Model:
S-VERT-640
Manufacturer:
SteppIR
SteppIR Vertical Antennas
Steppir Verticals are the only true ¼ wave continuous coverage antennas available for the HF bands. The SteppIR technology has had a profound impact on improving vertical antenna performance over that of traditional designs - there is no substitute for having a true 1/4 wave vertical on every frequency within the coverage range, without having to “trick” the antenna into being resonant. Being able to adjust the length of the element allows the Steppir vertical to be mounted nearly anywhere and still provide a good match to your transceiver. As with all ¼ wave verticals, ultimate performance depends a good radial system. Steppir verticals can be ground mounted or elevated above ground.
ITEMS
Image (click for detail) |
Part Number |
Description |
Price |
 |
00417 | BigIR Mark IV Vertical 40m-6m: 1 x 32 ft adjustable element, continuous coverage 6.9MHz – 54MHz, 15 lb weight, 3000w power rating, includes SDA100 basic controller, 24v power supply, DB25 dsub Field Splice, guy hardware kit and mounting post. | $1865.00 |
 |
09128 | SDA100 Controller: Standard for all antenna models; Basic controller includes: 180 degree mode, bi-directional mode, auto-retract, manual band change, manual adjustment of elements. | $0.00 |
 |
03650 | DB25 dsub Field Splice: The db25 field splice is used to connect the control cable to the SDA 100 electronic controller. The field splice consists of 3 terminal headers that are mounted to a PCB board, which is in turn connected to a male DB25 connector. The control cable is connected to the splice using the included wiring diagram. Having the field splice allows for exact lengths of control cable, with lengths available to the nearest foot. In addition, if the cable is being run into a conduit, it eliminates the need to cut off the connector. | $0.00 |
 STOCK PHOTO |
06030 | 20m-6m Ground mount radial kit: Consists of 4x 16 awg insulated wires 9 feet long, terminated to a single lug. Highly recommend a minimum of 3 sets (12 wires) to obtain reasonable performance, more is better. | $0.00 |
|
STOCK PHOTO |
06031 | 40m-6m Ground mount radial kit: Consists of 4x 16 awg insulated wires 16 feet long, terminated to a single lug. Highly recommend a minimum of 3 sets (12 wires) to obtain reasonable performance, more is better. | $0.00 |
 |
24v Power Supply: For control cable lengths up to 65m.(If cable length is in excess of 65m, you will need the 33v Power Supply Upgrade listed under the "Options" tab.) | $0.00 |
Vertical Specifications
Specs |
BigIR |
SmallIR |
| Element Length |
32 feet |
18 feet |
| Minimum suggested radials |
12 each, 16′ long |
12 each, 9′ long |
| Weight |
15 Lb |
12 Lb |
| Wind Load |
2 ft2 |
1 ft2 |
| Wind Rating | 0 guys: 50mph 1 guy: 70mph 2 guys: 100mph |
100mph |
| Adjustable Elements |
1 |
1 |
| Power Rating |
3 KW continuous |
3 KW continuous |
| Frequency coverage |
6.9 – 54 MHz |
13.9 – 54 MHz |
| Tuning Rate |
0.7 ft/sec |
same |
| Control Cable |
4 conductor 22ga |
4 conductor 22 ga |
BigIR and SmallIR Coil Option
Specs |
BigIR 80m coil |
SmallIR 80m coil |
SmallIR 40m coil |
| Ham band coverage |
80m, 60m |
80m, 60m, 40m, 30m |
40m, 30m |
| Power rating |
1500w |
500w (80m, 60m) 1500w (40m, 30m) |
1500w |
| Dimensions |
9.5″w x 14″ h x 7″ deep |
9.5″w x 14″ h x 7″ deep |
9.5″w x 14″ h x 7″ deep |
| Weight |
4.5 lb |
4.5 lb |
4.5 lb |
| Additional Cable requirement |
4 wire 22 awg shielded |
4 wire 22 awg shielded |
4 wire 22 awg shielded |
Options
Image (click for detail) |
Part Number |
Description |
Price |
 STOCK PHOTO |
03222 | OPTIONAL Control Cable: 12 wire 22 AWG shielded control cable, outdoor rated, NON-buriable. Available in 1m increments. Lengths over 65m require the 33v power supply or the remote driver board option. | $4.50 |
 |
01321 | OPTIONAL Transceiver Interface for SDA100 controller: Automatically adjusts each element of the antenna as the radio tunes. Requires a transceiver interface cable. CLICK HERE to see which interface cable you will require for your radio. | $155.00 |
 |
01322 | OPTIONAL Tuning Relay for SDA100 controller: Lock-out relay connects via PTT cable to RF power source and prevents the amplfier from transmitting while the SteppIR antenna is being tuned. Helps prevent potential mismatch issues that could damage the antenna. | $155.00 |
 |
09130 | OPTIONAL Advanced Lightning Protection (ALP) Module for SDA 100 electronic controller: Each driver chip has a relay in front of it that protects against lightning, nearby lightning incident and dead shorts. Module will only work if the antenna is not in the process of adjusting when the event occurs. | $255.00 |
 |
09132 | OPTIONAL Remote Driver Board for SDA 100 electronic controller: The remote driver board is mounted near the tower base. 12 conductor control cable is run from antenna to the remote driver board, and then CAT5e cable can be used to connect from remote driver board to hamshack, up to 2000 feet away. Requires a power source. Advanced lightning protection (ALP) module is included with this option. Remote driver board comes with an aluminum mounting plate but does not come with an enclosure. | $380.00 |
 |
06032 | OPTIONAL Elevated radial kit: 2x 16 AWG insulated wires 32 feet long, terminated to a single lug. Above ground installations require one set of 2 radials per band of operation, and must be trimmed to size. | $55.00 |
|
STOCK PHOTO |
06033 | OPTIONAL 80m-6m Ground mount radial kit: Consists of 4x 16 awg insulated wires 40 feet long, terminated to a single lug. Highly recommended a minimum of 3 sets (12 wires) to obtain reasonable performance, more is better. | $85.00 |
 |
06021 | OPTIONAL 80m Base Loading Coil for BigIR Vertical: Attaches to base of BigIR Vertical, expanding coverage to 80m and 60m bands. Additional 4 wire cable required when adding this option. 4 lbs weight. Power limit for 80m and 60m. 1.5KW continuous, all other bands remain the same (3KW). | $565.00 |
 |
06011 | OPTIONAL 1:1 External Balun: 5KW Choke balun in waterproof housing with SO239 connectors. Highly recommended for eliminating potential for RF to enter ham shack via control cable wires. | $130.00 |
 |
06108 | OPTIONAL Voltage Suppressor: Line filter (8 conductor) for filtering ESD and other unwanted voltages from the Control cable. Made by Array Solutions. A better option would be the 09130 Advanced Lightning Protection (ALP) module, which internally protects the SDA 100 controller by relaying out the driver chips in case of a lightning strike, near incident event or a dead short. | $155.00 |
 |
OPTIONAL Transceiver Interface Cable - Kenwood: Connects your transceiver to the SDA 100 controller for automatic adjustment of antenna when you change frequencies (requires 01321 transceiver interface). Kenwood takes either the S15 or S18 cable. | $45.00 | |
 |
OPTIONAL Transceiver Interface Cable - Yaesu: Connects your transceiver to the SDA 100 controller for automatic adjustment of antenna when you change frequencies (requires 01321 transceiver interface). Yaesu uses either the S12, S13, S18 or S19 cable. | $45.00 | |
 |
OPTIONAL Transceiver Interface Cable - Icom: Connects your transceiver to the SDA 100 controller for automatic adjustment of antenna when you change frequencies (requires 01321 transceiver interface). ALL cables are the same for Icom. | $45.00 | |
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OPTIONAL Transceiver Interface Cable - OTHER MODELS: Connects your transceiver to the SDA 100 controller for automatic adjustment of antenna when you change frequencies (requires 01321 transceiver interface). Cable types for these radios vary. | $45.00 | |
 |
02114 | OPTIONAL Y Connector for SDA 100 Transceiver Interface: ''Y'' cable is used to connect a computer logging program, transceiver and the SDA 100 to one singular communication port; the Y cable is not necessary with Icom radios. | $65.00 |
