PO-101
DIWATA-2B · amateur radio satellite, NORAD 43678
Not heard todayPO-101 frequencies
| Uplink | Downlink | Beacon | Mode |
|---|---|---|---|
| 437.500 MHz | 145.900 MHz | — | FM |
| — | — | 145.900 MHz | CW |
Nominal frequencies, without Doppler. The live map shifts them for your station during a pass. Frequencies: SatNOGS DB (modified: working amateur transmitters only, in MHz), CC BY-SA 4.0.
About PO-101
PO-101 (Diwata-2) is a Philippine microsatellite built under the PHL-Microsat programme by the University of the Philippines Diliman and DOST-ASTI with Tohoku and Hokkaido Universities, and launched on 29 October 2018 on an H-IIA rocket from Tanegashima together with GOSAT-2. Besides cameras, it carries an FM repeater for radio amateurs.
The repeater listens on 437.500 MHz with a 141.3 Hz CTCSS tone and transmits on 145.900 MHz. It does not run all the time: the Diwata team switches it on for scheduled passes and announces them in advance. Since 2025 the satellite has been reported to be failing, so activations may be rare: check the schedule and the AMSAT status before you try.
Because the uplink is on 70 cm, correct your transmit frequency for Doppler during the pass, in steps of about 5 kHz.
Status
Listed as working, but nobody reported hearing PO-101 on AMSAT in the last 30 days.
From reports filed on AMSAT, last 30 days.
Orbit
| Type | Low Earth orbit |
|---|---|
| Altitude | 555–573 km |
| Inclination | 98.1° |
| Period | 95.9 min |
| TLE epoch | 2026-10-28 14:14 UTC |
Orbital elements: CelesTrak, checked every 3 hours.
Questions about PO-101
- What is the PO-101 uplink frequency?
- PO-101 listens on 437.500 MHz (FM).
- What is the PO-101 downlink frequency?
- PO-101 transmits on 145.900 MHz (FM).
- What is the PO-101 beacon frequency?
- The beacon is on 145.900 MHz.
- Is PO-101 active?
- Listed as working, but nobody reported hearing PO-101 on AMSAT in the last 30 days.
- When does PO-101 pass over my location?
- Open PO-101 on the live map and enter your Maidenhead locator or use GPS: the tracker lists the passes of the next 24 hours with AOS, maximum elevation and LOS, and shifts the frequencies for Doppler.