Switching The Eom Flag - R&S M3SR 4100 Series Operating Manual

M3SR Series 4100
4.5.4.6

Switching the EOM Flag

Softkey
Operating Manual 6175.4760.02 – 01
Type
Toggle
Switching the EOM Flag
Description
1. Press softkey to toggle EOM sequence
on/off.
Possible values:
• ON
• OFF
With this softkey, the transmission of an end of
message (EOM) flag can be enabled or dis-
abled.
The EOM sequence is used to signal the re-
ceiving HF Modem the end of the transmis-
sion.
By decoding EOM, the HF Modem will return
to acquisition immediately, to be ready for the
next transmission or reception.
The use of an EOM is recommended. Howev-
er in conjunction with the use of a fixed maxi-
mum message block length e.g. with an
external ARQ protocol, it can make sense to
deactivate EOM to increase the user data
throughput.
This parameter is adjustable for HF Modem
type STANAG 4539 only.
For STANAG 4285 and STANAG 4529 the
use of an EOM flag is mandatory and cannot
be disabled.
4.139