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ALPHA DELTA - DELTA-4B - Coaxial commutateur 4 Way (1500 watts CW) - PL
DELTA-4B
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The excellent quality of this object is characterized by a fusion with a microstrip cavity with constant impedance for UHF.
No wafer switches with leaks are used, but a solid ball bearing system.
No uncertainty as to which position was chosen. Unused positions are automatically grounded to reduce noise interactions and possible discharges. The famous Alpha Delta Arc-Plug ™ Cartidge protects the position in use.
The antenna in the in or out position is always protected in both cases! The Arc Plug is easily accessible from the front panel so that the switch can be mounted on any surface. Both models support full legal power.
The VSWR is less than 1.2: 1 up to 150 MHz, and less than 1.5: 1 at 500 MHz for the DELTA series with UHF connectors.
Models with N type connectors have a VSWR less than 1.2: 1 up to 500 MHz and less than 1.5: 1 at 1.2 GHz.
Switches with SO-239 (UHF) are sized for 1500 watts CW / FM up to 30 MHz and 1000 watts from 30 to 450 MHz, assuming a VSWR less than 2: 1. Higher VSWR values at full power could distort the ARC-PLUGcartridge. 60 dB isolation up to 450 MHz, typically 70 dB below 30 MHz.
Switches with N type connectors are sized for power up to 1500 watts CW / FM up to 150 MHz, 1000 watts from 150 to 500 MHz and 800 watts from 500 to 1.2 GHz. NOTE: 1.2 GHz, not 1.3 GHz. 60 dB up to 500 MHz and 50 dB from 500 MHz up to 1.2 GHz. In the hypothesis of a VSWR not larger than 2: 1.
All models are at such low losses that interconnection cables usually have more losses than the switches themselves.
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