Hammond AT-1500 1,500 W Pep Antenna Transmatch, 1 to 30 MHz
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224-955-1644Key Features
- Continuous 1 to 30 MHz coverage via variable roller inductor
- 1,500 watts P.E.P. continuous power handling
- 50 to 75 ohm unbalanced input
- Matches 15-500 ohm coax, up to 500 ohm balanced (ferrite balun included) or 10-1,000 ohm single ended feed
- Vernier tuning with 0 - 100 dial skirt log for easy resetting
- Steel cabinet in Hammond "Earth" Brown with "Cream" Beige front panel
- Compact 6.00 x 10.00 x 12.00 in, 5 lbs (2.3 kg)
- Circa 1980 design, no longer in production
The AT-1500 is a Hammond antenna transmatch (antenna tuner) from around 1980 and is listed by the manufacturer as no longer in production. It is of interest to amateur radio operators, restorers and collectors of classic Hammond station equipment looking for information on, or a match for, this unit.
Frequency coverage is 1 to 30 MHz continuously, using a variable roller inductor. The input impedance is 50 to 75 ohms unbalanced. On the output side it can match 15 to 500 ohms unbalanced (coaxial) feed, up to 500 ohms balanced feed through its included high power ferrite balun, or 10 to 1,000 ohms single ended feed. Power handling is 1,500 watts P.E.P. continuous.
Tuning uses vernier drives for smooth and accurate settings on all frequencies, with a 0 - 100 dial skirt log so settings are easy to reset. The finish follows a colour scheme similar to the Rockwell Collins KWM-380 (released in fall 1979) and was matched to the Hammond HL-2000A linear amplifier: the outer steel cabinet is painted in textured baked enamel in Hammond "Earth" Brown, and the front panel in smooth baked enamel in Hammond "Cream" Beige.
Overall dimensions of the AT-1500 are 6.00 in (152 mm) high, 10.00 in (254 mm) wide and 12.00 in (305 mm) deep, and the unit weighs 5 lbs (2.3 kg).
Ideal For
- HF amateur radio antenna matching from 1 to 30 MHz
- Matching coax, balanced or single ended antenna feeds
- Companion tuner for the HL-2000A linear amplifier
- Classic Hammond station restoration and collecting
Overview
| Dial | 0 - 100 dial skirt log for easy resetting |
| Series | AT-1500 Series |
| Tuning | Vernier tuning for smooth and accurate settings on all frequencies |
| Part Number | AT-1500 |
| Product Type | Antenna Transmatch |
| Production Status | Circa 1980 - No longer in production |
Dimensions
| Overall Depth | 12.00 in (305 mm) |
| Overall Width | 10.00 in (254 mm) |
| Overall Height | 6.00 in (152 mm) |
Electrical
| Power Handling | 1,500 watts P.E.P. continuous |
| Input Impedance | 50 to 75 ohms, unbalanced |
| Frequency Coverage | 1 to 30 MHz continuously (variable roller inductor) |
| Output Impedance - Balanced | Up to 500 ohms balanced feed (includes high power ferrite balun) |
| Output Impedance - Unbalanced | 15 to 500 ohms unbalanced (coaxial) feed |
| Output Impedance - Single Ended | 10 to 1,000 ohms single ended feed |
Packaging & Shipping
| Weight | 5 lbs (2.3 kg) |
Construction & Finish
| Front Panel | Painted smooth baked enamel - Hammond "Cream" Beige |
| Colour Scheme | Similar to the Rockwell Collins KWM-380 (released fall 1979); matched the HL-2000A linear amplifier |
| Outer Cabinet | Steel, painted textured baked enamel - Hammond "Earth" Brown |
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Frequently Asked Questions
Is the AT-1500 still in production?▾
No. The manufacturer lists the AT-1500 antenna transmatch as circa 1980 and no longer in production.
What frequency range does the AT-1500 cover?▾
It covers 1 to 30 MHz continuously using a variable roller inductor.
How much power can the AT-1500 handle?▾
It is rated for 1,500 watts P.E.P. continuous.
Can it tune balanced feed lines?▾
Yes. It handles up to 500 ohms balanced feed and includes a high power ferrite balun. It also handles 15 to 500 ohms unbalanced coaxial feed and 10 to 1,000 ohms single ended feed.
What size is the AT-1500?▾
Overall dimensions are 6.00 in (152 mm) high, 10.00 in (254 mm) wide and 12.00 in (305 mm) deep; it weighs 5 lbs (2.3 kg).
Which amplifier was it styled to match?▾
Its finish was matched to the Hammond HL-2000A linear amplifier, in a colour scheme similar to the Rockwell Collins KWM-380.
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