Epson MFJ-1278B TXDelay n Mode Pactor Default 2 60ms, Txdelayc nnn, Baud Rate Time-per-character

MFJ-1278B MULTI-MODE OPERATIONAL COMMANDS

TXDelay n Mode: Pactor Default: 2 (60ms)

Parameters:

n = Actual Delay Time equals n + 10ms * 5ms

Similar to AMTOR's DELAY and packet's TXDELAY. The actual delay yielded is equal to (10ms + (TXDELAY * 5ms ) ). If the combined TXDELAYs of both stations involved in the link exceeds about 180ms, then shortpath connections may not work, particularly at longer distances. If difficulty is experienced, try using the Longpath Connect ("LC") command to connect.

TXDELAYC nnn Mode: Packet Default: 2

Parameter:

nnn0 thru 255 in 1 ms step

The time delay between when the MFJ-1278B depresses the PTT and when it starts sending packets is specified in terms of how long it takes to send (TXDELAYC) characters at the current radio baud rate. TXDELAYC controls a new timer that runs after the regular TXDELAY time has expired (see TXDELAY).

High speed radio users will find this command useful because they can select transmit delays much smaller than the 10 ms grains in TXDELAY. For high speed use, set TXDELAY to 0 and set TXDELAYC according to the formula below:

TXDELAYC = Radio-PTT-delay-time / Time-per-character

The time-per-character as related to the radio baud rate is as follows:

Baud Rate	Time-per-character
9600	.83 ms
2400	3.30 ms
1200	6.70 ms
300	26.00 ms

Examples:

1.For a 200 ms 2 meter HT at 1200 baud, TXDELAYC is: