FA480920Q0020 QandA2.pdf
PDF 147 KB Posted
- Attached to
- Installation of UHF Antennas Federal contract opportunity
- Solicitation number
- FA480920Q0020
View the file
Other files for this federal contract opportunity
| File | Type | Posted |
|---|---|---|
| Bldg4901 Antenna Tower Photos.pdf | ||
| FA480920Q0020 Questions and Answers.pdf | ||
| SOW 27 Mar.pdf | ||
| AWD 2015-4379 rev 12.pdf | ||
| Combined Synopsis Solicitation 27 March 20.pdf | ||
| Combo.pdf | ||
| SOW for UHF Antennas.pdf |
On GovTribe
Work with this file on GovTribe
- Download the original file
- Contacts named in this file
- Similar government files
- Ask GovTribe AI about this file
Text version
FA480920Q0020 - Install UHF Antennas
Q&A #2
1. SOW para. 2c.: Provide and install lightning protection with air terminal that extends at least ten inches above the highest antenna top.
Please see attached antenna has lighting protection built into the antenna at its top of the radome. This will satisfy the requirement, does the government agree?
No, it does not meet the requirement. The TELANT antennas are much shorter and will not protect the other antennas that reach higher into the sky. The lightning protection must be the highest point to provide a cone of protection for all the antennas.
All specifications subject to change without noticeTelewave, Inc. • San Jose, CA • 1-800-331-3396 ~ 408-929-4400 • www.telewave.com TWDS-7104 Rev. 1/11
380 - 470 MHz
FIBERGLASS COLLINEAR ANTENNA 2.5 dBd
The Telewave ANT425F2 is an extremely rugged collinear antenna, with moderate gain and wide vertical beamwidth. This compact antenna produces 2.5 dBd gain, and is designed for operation in all environmental conditions. The antenna is constructed with brass and copper elements, with a path to ground potential for lightning impulse protection.
All junctions are fully soldered to prevent RF intermodulation, and each antenna is completely protected within a rugged, high-tech radome to ensure survivability in the worst environments. The “Cool Blue” radome provides maximum protection from corrosive gases, ultraviolet radiation, icing, salt spray, acid rain, and wind blown abrasives.
The ANT425F2 includes the ANTC485 dual clamp set for mounting to a 1.5” to 3” O.D.
support pipe, and a 24” removable RG-213 N-Male jumper.
-30
-60
-90
-60
-30
-3
-10
-20
ANT425F2 - 425 MHz Vertical Plane Gain = 2.56 dBd
ANT425F2
SPECIFICATIONS
Frequency (continuous) 380-470 MHz Dimensions (L x base diam.) in. 42 x 2.75 Gain 2.5 dBd Tower weight (antenna + clamps) 9 lb.
Power rating (typ.) 500 watts Shipping weight 11 lb.
Impedance 50 ohms Wind rating / with 0.5” ice 200 / 150 MPH VSWR 1.5:1 or less Maximum exposed area 1.0 ft.² Pattern Omnidirectional Lateral thrust at 100 MPH 38 lb.
Vertical beamwidth 38° Bending moment at top clamp 30 ft. lb.
Termination Recessed N Female
7-16 DIN-F opt.
(100 MPH, 40 PSF flat plate equiv.)
File details come from the government source that posted it. Updated .