Frequency Range :

54 - 300 MHz

Channels Available:

Factory ordered for a single channel:

VHF 2-13, Midband 14-22 (A-I) and 95-99 (A5-A1), Superband 23-36 (J-W).

FCC Frequency

All aeronautical channels offset positive with a

Offsets:

tolerance of ±5KHz.

Output Level:

+55dBmV, (typically adjustable from +40 to +55dBmV).

Output Impedance:

75 Ohms, return loss of 14 dB.

Output test:

-30dB, nominal (referenced to RF OUTPUT level).

A/V Ratio:

Audio carrier -20 to -10 dB referenced to video carrier, adjustable.

Frequency Stability

Within ±10KHz of assigned channel frequency.

Visual:

±5KHz on FCC offset channels.

Aural Intercarrier

4.5MHz, ±5KHz

Frequency:

Spurious Outputs:

-60dBc minimum, measured at -15dB A/V ratio and with modulator output level of +55dBmV.

In-Channel C/N:

-60dBc.

Broadband Noise:

-80dBc @ ±30MHz or greater spacings. (specified levels are referenced to the video carrier and measured in a 4MHz bandwith).

VIDEO

Input Level for 87.5%:

1 Vpp ±3dB, manual gain adjust with front panel control.

Input Impedance:

75 Ohms, return loss of 18 dB minimum.

Frequency Response:

Flat ±2dB from 30Hz to 4.2MHz

Video S/N:

60dB, luminance weighted.

L/C Delay:

Within 50nSec of 0nSec L/C delay (complies with FCC rules, 76.605).

Differential Gain:

Less than ±5% (10 to 90% APL).

Differential Phase:

Less than ±5 degrees (10 to 90% APL).

AUDIO

Input level for 25KHz

140mV minimum. Manual gain adjustment with

Peak Deviation:

front panel control.

Input Impedance:

10K Ohms, unbalanced.

Pre-emphasis:

75 μSec.

Frequency Response:

20Hz to 15KHz, +1, -3 dB, referenced to 75 μSec pre-emphasis curve.

4.5MHz Intercarrier Stability:

±5KHz, 0oC to +50oC.

Total Harmonic Distortion:

1.5% maximum.

Hum and Noise:

-60 dB minimum, referenced to 25KHz peak deviation.

GENERAL

AC Power Input:

115 VAC ±10%, 60Hz, 10 W.

Auxiliary AC Outlet:

115VAC

Operating Temperature Range :

0oC to +50oC, ambient.

Size:

19"W (481mm) x 1.75"H (44mm) x 4.0"D (100mm).

Weight:

3.5Lbs. (1.6Kgs).

Connectors:

Video input, Audio input, RF output and Monitor output are all type F.