Setup guide
Table Of Contents
- Table of Contents
- 1 General information (setting up microHAM and N1MM logger)
- 2 SO2R Setup at PA1M - microHAM MK2R+ and Station Masters and N1MM logger
- 2.1 Layout cabling
- 2.1.1 MK2R+ Station Master Connection diagram (by Joe, W4TV)
- 2.1.2 Shack PA1M
- 2.1.3 Stationmaster
- 2.1.4 Nr 6 - Port A - Antennaswitch (DB25F) microHAM DOUBLE TEN SWITCH
- 2.1.5 Nr 14 - Port B - bandpassfilter, sequencer (DB25F) ICE-419A BPF
- 2.1.6 Nr 5 - Port PA - Power Amplifier (DB15F)
- 2.1.7 Nr 13 - Port ROTOR - Antenna Rotator (DB15F)
- 2.1.8 StationMaster cabling
- 2.1.9 Setup Station Master
- 2.1.10 Setup uRouter
- 2.2 DOUBLE TEN Port lockout with Station Masters
- 2.3 Radio settings
- 2.4 microHAM Router setup
- 2.5 Station master setup
- 2.6 N1MM logger setup
- 2.7 MMTTY setup
- 2.8 PC setup
- 2.9 Errors and other problems
- 2.10 Detailed Cabling Diagrams
- 2.1 Layout cabling
- 3 N1MM - RTTY operation / settings
No audio on line in
CAT noise : Buzzing sort of doo doot sound in the background of the record
This is CAT polling noise. The K3 has RF chokes in the ground leads of the RS−232 port, the ACC
port and the mic return. This results in common mode noise if the ground ring of the Foster mic
connector is not tight and the KIO3 board is not seated properly. The polling noise is particularly
significant if the rear panel (3.2mm) mic input is used because there is NO chassis ground on that
jack other than through the RF choke.
Check all your grounds! With the K3 it will help to add jumpers between the ground/common pins of
the DB9 (RS−232 − pin 5), DB15HD (ACC − pins 5 & 12) and Foster (Mic − pins 7 and 8) connectors
and the shell of the connector. This allows the "ground" currents to reach the chassis directly rather
than see approximately 4 Ohms in the common leads.
1.7 Icom radios
CAT noise
With CAT noise in the Icom transceivers, check the ground connection on the "Remote" jack in the
transceiver and on the shell of the "Remote" plug of the transceiver interface cable. There have been
several reports in which the ground trace on the CAT (remote) has been opened. If the CAT return is
open, CAT data will return through the ground lead of the ACC jack and can effect the "line" input
which seems to be always on in Icom radios except the IC−7800.
1.8 Kenwood radios
No audio on SSB
With Kenwood radios you need to be aware of operating frequency and the "Digital Band Map." If the
"Voice/Digital" box is set to "by frequency," audio and PTT settings will be set to either the Voice or
FSK/Digital settings based on the operating frequency (Digital Band Map). In addition, most Kenwood
transceivers require PTT_2 on digital (ACC jack audio input) and PTT_1 for Voice (Mic connector).
Audio Routing C and A are appropriate with PTT_1. Audio Routing B generally requires PTT_2 which
mutes the microphone.
1.9 All other Radios
CAT noise
The cat data reports are also more common among those users with non−Icom (dynamic)
13−2−2009 1 General information (setting up microHAM and N1MM logger) 7