Specifications; Parameters; Operating Frequency Range; Minimum Range Of The Matched Impedances (At Each Of The Four Antenna Outputs) - Acom AOM 04AT User Manual

8. SPECIFICATIONS

8.1. Parameters

8.1.1. Operating Frequency Range

Continuous from 1.8 to 30 and from 50 to 54 MHz, extensions and changes on request.

8.1.2. Minimum Range of the Matched Impedances (at Each of the Four Antenna Outputs)

All impedances with SWR from 1:1 to 3:1 towards 50 Ohm, any phase angle, unbalanced input and output.
For some frequencies and impedances, matching is possible at SWR above 3:1 at the
antenna output (up to 10:1), but the maximum allowed power is reduced (see Section

8.1.3 Maximum Allowed Input Power

8.1.3. Maximum Allowed Input Power
(PEP, Mean or Continuous Carrier, Without Mode Limitation)
The maximum permissible input power is reduced gradually as per
tuner as function of the antenna SWR

Table 8-1 | Maximum input power of the tuner as function of the antenna SWR

SWR 1 - 2.5
Pin, W 1500
Table 8-1 | Maximum input power of the tuner as function of the antenna SWR
Operation with antenna output SWR above 10:1 is not allowed.
Provided tuning is possible.
*

8.1.4. RF Input Characteristics

Rated impedance: 50 Ohm unbalanced;
•
Input connector type: UHF/PTFE (SO-239A) - 1 pc.;
•
SWR during full tuning (basic cycle): No higher than 2:1;
•
SWR immediately after full tuning: No higher than 1.5:1 (1.3:1 typically).
•
Page 74 of 88 | S e c t i o n SPECIFICATIONS
User's Manual | ACOM 04AT | Remote Automatic Antenna Tuner and Switch
NOTICE
).
.
2.5 - 3 3 - 5*
1200
NOTICE
Table 8-1 | Maximum input power of the
5 -10*
500 200
Above 10
Not allowed
October 2023