PACTOR
PACTOR is a synchronous transmission system with a packet duration of 0.96 second, a CS duration of 0.12 second, and an idle time of 0.17 second for a total cycle time of 1.25 …
About Us
PACTOR Kids. 10 years after its foundation and based on the recognition and sustained growth in its publishing areas. PACTOR presented itself in 2020 with a new challenge: the creation of a publishing brand, called PACTOR Kids, offering children's books with a valuable objective - Psychology to serve parents, educators and teachers. ETEP
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For Sale: SCS PTC-IIPRO Pactor MODEM
This DSP Multimode PACTOR CONTROLLER is "like new". stored inside, no corrosion etc. Made in Germany by SCS. Asking $275 with shipping in Cont USA. This …
SCS Pactor Modems
DR78 00 - P4dragon SCS Pactor Modem (more details). NEW PRICE REDUCTION. Our HF modem P4dragon DR-7800 is the uncompromising advancement of the legendary PTC-II which is designed for professional …
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PACTOR I
PACTOR Series: PACTOR I - PACTOR II - PACTOR III - PACTOR IV PACTOR-I is a digital data protocol combining elements of PACKET and AMTOR ARQ Automatic Repeat reQuest Automatic Repeat Query.. PACTOR-I is used by many groups, including Sailmail for mariners to send and receive emails. It is also used by Ham Radio …
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Reviews For: SCS PTC-II
I used PA0NC program NcWinPtc for multimode, and then used AirMail for WinLink operation on HF and packet on V-Uhf. Pactor lev.2 is something to test; I had in the last month other Multimode Pactor controllers to fix, but when you are used to Pactor level 2, going back to pactor 1 links seems pure frustration and masochism .
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A comparison of Winlink® digital mode performance …
channels are based on the well-documented Watterson model3 used in many expensive laboratory grade instruments. For HF, both wideband modes (PACTOR 3, PACTOR 4, VARA, ARDOP and WINMOR) and 500Hz modes (PACTOR 2, ARDOP 500, WINMOR 500 and an all new VARA 500 mode) were tested. For VHF, AX.25 based packet, FX.25 …
PACTOR-4
Special importance was given during the development of PACTOR-4 that this could be used without problem on industry standard transceivers with a 2.4 kHz IF bandwidth ("amateur radio transceiver"). Due to the adaptive equalizer, the form of the IF filter curve (as compared against OFDM, PACTOR-3) is non critical. ...
Pactor Protocol Description
For these reasons, it is not used in the final PACTOR-II protocol. Basic information on these items can also be found in the first part of this series. PACTOR-II uses instead, different DPSK modulation schemes and various code rates The Crest Factor of the PACTOR-II signal is therefore only 1.45. The basic code used is an optimum rate 1/2 ...
Radio Modes: Everything You Need to Know
PACTOR. PACTOR is a hybrid of Packet and AMTOR. Designed by Peter, DL6MAA and Ulrich, DF4KV is an alternative to both AMTOR and packet. It has three incarnations, PACTOR I, PACTOR II and PACTOR III. These …
Pactor/SSB installation
The 9090 cable used on most Icom radios for the "ACC" connector cannot be used. The audio level settings should be 900/1200 for FSK/PSK respectively. ... We support Pactor-4 at all stations but expect that Pactor III mode will continue to be used by most SailMail members because of the significantly lower cost of the modem. But for those ...
FARALLON, DR-7800, Digital Modems, DR7800
The DR-7800 P4Dragon is optimized to use the data transmission mode PACTOR 4. The DR-7800 and PACTOR 4 enable unexcelled data links via shortwave from any point on earth. P4Dragon modems are software compatible with previous PTC-II series modems, so existing PACTOR software (AirMail, RMS Express, Alpha etc) can continue to be used.
Reviews For: SCS PTC-II
I just ordered the PACTOR-3 license and a PR-Modul DSP-II board - they still sell it! If you get a barebone PTC-II for $100 or less, don't hesitate. But be prepared to shell out another $200 for PACTOR-3. ... My use of the SCS has been intermittent but with support from Gary have used Airmail from time to time with success. Thanks to a recent ...
Flex 6500 with SCS DR-7400 Pactor. — FlexRadio Community
In order to run PACTOR with the 6000 series radios there are a couple of things that have to be in place: 1. The slice used for PACTOR must be in DIGU or DIGL with a filter wider than 3k. This will make SmartSDR use lower latency filters to decrease turnaround time. 2. Make sure the audio levels are set properly.
Pactor-II/III Radio Modem sales, FCC License filing, Marine …
SCS Pactor Radio Modem & Icom Marine SSB Radio sales & support for Sailmail & Winlink e-mail networks. Marine and areonautical FCC radio license filing services using DockSide Radio's simplified one-page application worksheet. Downloadable Cruising Nets & shortwave radio broadcasting schedules. Radio-related technical support for the cruising …
PACTOR-4
The fast quad-core DSP used in the DR-7X00 modems enables for the very first time, a high data rate, approaching very close to the Shannon limit, as well as an extremely high immunity to interference. ... PACTOR-4, with its 10 speed levels and adaptive equalizer, adjusts itself ideally to varying channel conditions, and guarantees reliable data ...
P4 Dragon DR-7800 Pactor-4 Modem with Waterfall Display
Our HF modem P4dragon DR-7800 is the uncompromising advancement of the legendary PTC-II which is designed for professional deployment and for the ambitious amateur radio operator. DR-7800 is software-compatible with PTC-II which means that one may continue to use the existing software, such as AirMail, RMS Express, Alpha, etc., for PACTOR as …
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It makes me wonder why MFJ-1276 TNC should have any issue with B2F mode, provided it is used with a computer software that handles B2F mode. For example, if BPQ software is used, its SSID header would include B2F info sent to its forwarding partner(s), regardless the link is made in packet-radio on VHF, or pactor on HF.
The PACTOR-III Protocol
The PACTOR-III Protocol Technical Description by Hans-Peter Helfert and Thomas Rink SCS & Co. KG, Hanau, Germany 1. Introduction ... 120 Hz is used in optimum propagation conditions. The highest raw bit rate transferred on the physical protocol layer is 3600 bits/second, corresponding to a net user data rate of 2722.1 ...
SSB Email and Weather Made Easy
To make up for this, an antenna tuner is used to electrically balance the antenna and the radio transmitting unit's output, ensuring maximum power is sent to the airwaves. ... The ONLY radio modems worth buying are made by a company called PACTOR, which has a virtual monopoly on the technology. Their latest model, the P4 …
Winlink
Winlink uses a worldwide HF system that can be used nearly anywhere in the world. By connecting a single sideband (SSB) radio to a computer with dedicated software and a modem interface, Winlink email messages can be sent throughout the system for endpoint delivery. ... WL2K allows hams to send and receive Winlink email using the PACTOR or ...
PACTOR II
The standard cycle duration for PACTOR-II is the same 1.25 s used by PACTOR, with the same 0.17s idle time (for propagation delay), to maintain interoperability. Since PACTOR-II uses a longer CS of 0.28 s (instead of PACTORs 0.12 s), the packet length had to be shortened to 0.8 s (from PACTORs 0.96 s).
Installing an HF SSB and a Pactor modem
Combine this radio with the SCS Pactor modem, and world-wide e-mail is a reality. If you are contemplating the purchase of an SSB transceiver, the Icom IC-M802 is worthy of consideration. ... This is a receive-only circuit and any 50-Ohm marine coax cable such as the smaller diameter RG-58U can be used. Simply terminate the coax on a …
Royal Communications International, Inc.
The DR-7803 adds a Class 1 (100mw) Bluethooth radio for a wireles connection to your PC. The DR-7803 and PACTOR 4 enable unexcelled data links via shortwave from any point on earth. P4Dragon modems are software compatible with previous PTC-II series modems, so existing PACTOR software (AirMail, RMS Express, …
FCC Approves change to amateur radio rules
This change opens up the ability to use PACTOR-4 protocols for higher speed data transmission on Amateur radio bands. Something Marine bands already supported. Previously the symbol/baud rate rule limited speeds on Amateur bands to PACTOR-3. PACTOR-4 is roughly 2X the speed and PACTOR-4 modems also have …
Pactor Modem DR-7800 with Ethernet
The Ethernet interface is used to connect the DR-7800 to a local network of computers, for example to give each computer access to the Pactor modem. With the software upgrade to version 2.0, the P4dragon controller now also handles …
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The PACTOR-4 Protocol
For P4, as with PACTOR-3, short and long packets are used to ensure the best possible compromise between time quantization ("response time" with many changes of direction in the half-duplex channel) and overhead / idle times. The "normal" ARQ cycle time for P4 is 1.25 s (short cycles) or 3 * 1.25 s (long cycles). In
What is PACTOR?
PACTOR is used by some amateur radio bulletin boards. It is also commonly used for transferring data, including email, from marine stations. Techopedia Explains PACTOR. As a form of AMTOR, PACTOR evolved from an original radio teletype technology that simulated an electromechanical teletype for wireless transmission.
General pool, section G2E
PACTOR is a radio modulation mode used to send and receive digital information via radio. PACTOR radio equipment consists of an HF transceiver, a computer and a terminal node controller. Software running on the computer drives the terminal node controller. The calling modem uses the PACTOR-I FSK connect frame to be compatible with the lowest level.
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