Complete List of Robust Packet Radio (RPR) Capable SCS Modems
    June 2015 compiled by Jeffrey, WA4ZKO


CURRENT MODELS
DR-7800 • RPR support is in v2.1 or later
DR-7400 • RPR support is in v2.1 or later
PTC-IIIusb • RPR out of the box. Latest firmware 4.1m
DSP Tracker • RPR out of the box. Latest firmware 1.5d

OLDER MODELS (see Note 1)
PTC-IInet • RPR support is in v3.6 or later
PTC-IIpro • RPR support is in v3.6 or later. Requires add-on DSP-II module
PTC-IIusb • RPR support is in v3.6 or later

TRICKY MODELS
PTC-IIex • RPR support is in v3.6 or later. (see Note 2)
PTC-II • RPR support is in v3.6 or later. Requires add-on DSP-II module and 2MB RAM
TRXPTC • Internal/PCB version of the PTC-II. Thus the above PTC-II details apply

MODELS THAT ARE NOT RPR CAPABLE
PTC-IIe • Sorry, but no go. This model lacks the necessary RAM and CPU horsepower for RPR

Note 1) While v3.6 firmware is minimum for RPR support, suggest using the latest version. This is v4.0 as of June 2015

Note 2) Install latest firmware. If your modem randomly resets it is most likely due to two failing capacitors in the modem. Not aware of a detailed how-to document, but the fix appears to involve carefully installing two 470µf 25V caps. See this image. Recommend consulting with your dealer if you have any doubts or questions on this.

All firmwares are free downloads