Frequency and Time Reference ptf 1229A, 0 to 30MHz Frequency Generator ptf 2210A Quartz Frequency Reference ptf 3207 GPS/GNS Frequency and Time Standard ptf 4210A Rubidium Standard ptf 4220A Rubidium Standard Distribution Amplifier ptf 1202A, 30MHz to 400MHz HF sine ptf 1203C / 1203C-MC 1MHz to 30MHz RF sine ptf 1204A / 1204A-MC 0 to 10MHz Digital ptf 1205A / 1205A-MC Time Code ptf 1206/7A / 1206/7A-MC Configurable ptf 1208/9A Optical Auto Switches ptf 1207A-AS, Failsafe Switch ptf 1226 Auto Switch with Distribution Network Time Servers ptf 3225ALow Cost NTP Server ptf 3223A NTP Server / Time Code Generator Display Interface ptf 8000A Display Interface