9770 Antenna Options

RF cable options for Iridium Certus 100 antennas used for Ground Control 9770 based products like the RockREMOTE Classic & Rugged and RockREMOTE Mini & Mini OEM.

Adherence to the Min and Max cable loss ranges is required to meet Iridium certification requirements.

9770 Modem Output characteristics

Parameter	Value
Frequency Range	1616 MHz to 1626.5 MHz
Input / Output Impedance	50 Ω
Transmit RF Burst Duration	8.27 ms
Transmit RF Burst Interval	90 ms
Average RF power range across Burst (Conducted i.e. measured at the RF connector)	+24 dBm (0.25W) to +40 dBm (10W) NOTE: Peak power may be up to 6dB higher

Antenna Options

The options shown in the table below are based on the following cable and connector loss assumptions for the Certus operating frequency range:

LMR400 loss 0.17dB/m

LMR240 loss 0.34dB/m

LMR195 loss 0.5dB/m

0.1dB per connector.

This page is intended only to act as a guide. Installers are advised to carry out their own calculation and measurement of loss for any RF cable assembly used. Certus 100 services operate between 1616MHz - 1626.5MHz.

Connectors should have an IP67 ingress rating.

NOTE: When using these antennas with the Mini OEM either a MMCX to TNC female adaptor is required or the cable assembly made up with an MMCX male connector for direct connection to the 9770 modem. The total cable loss between the Mini OEM MMCX and the antenna needs to be 0.2dB higher than the minimum and can be 0.2dB higher then the maximum. This is because the values shown in the table account for the internal cable loss of the enclosed RockREMOTE versions.

Ground Control Part Number	MFT Part Number	Gain	Antenna end Connector	Terminal end Connector	Min Cable Loss	Max cable loss	Cable assembly options
SCAN Antenna (IRIS-ANT-9770)	65020-011	2 dBic	N-type male	TNC male	0.4dB	1.9dB	Between 1.2m and 10m of LMR400
							Between 0.6m and 5m of LMR240
							Between 0.4m and 3.4m of LMR195

High-Profile Maxtena (AC-GC-M1621HCT-HP)	M1621HCT-HP (100-00083-01)	1.7 dBic (typical)	TNC male	TNC male	0.3dB	1.4dB	Between 0.6m and 7m of LMR400
							Between 0.3m and 3.5m of LMR240
							Between 0.2m and 2.4m of LMR195

Low-Profile Maxtena (AC-GC-M1621HCT)	M1621HCT-LP-SM (100-00101-01)	2.5 dBic (typical)	TNC male	TNC male	0dB	0.3dB	Maximum 0.6m LMR400
							Maximum 0.3m LMR240
							Maximum 0.2m LMR195

Maxtena Baymax (ACC-RR-IRI-SFX-ANT)	M1646HCT-P-SMA (100-00224-01)	2.6 dBic (Peak)	SMA female	TNC male	0dB	0.2dB	Maximum 0.3m RG402