1. What is the modem set-up (protocol)?
2. How do you retransmit data?
3. What is an alternative way to log on?
4. How far back does the data go?
5. How come I’m missing my scheduled data transmission?
6. Is someone stepping on my platform?
7. What are the proper procedures for accessing DAPS through   TELNET?
8. How can I download data from this program?
9. How come I am having problems logging on?
10. How come I have such a high Error Frequency Rate?
11. How come I am experiencing problems with the Quality   Measurements of the platform?
12. Why am I experiencing poor data quality?
13. How can I fix it?
14. How can I get a Procedure Manual (User Interface Manual – UIM)?
15. How can I change the preamble of my platform from short or long or vice
16. What is the look-up angles/antenna pointing angles for my platform?
17. How can changes be made to my platform description table or the user  description table?
18. What is the frequency for METOSAT, or DOMSAT?
19. What are the proper procedures for the SUBMIT function?
20. How can I send mail to others with DAPS?
21. Can you verify transmission schedule and channel assignments?
22. How can I change my password within DAPS?
23. Can you test the data format of my data going out on the NMC line or the DOMSAT line?
24. My platform seems to be drifting into different frequencies; what’s wrong with it?
25. What IPs can I use to access DAPS via telnet?

Question: 1. What is the modem set-up (protocol)?
Answer: Set your modem at FULL DUPLEX, 7 BITS, EVEN PARITY, 1 STOP BIT

Question: 2. How do you retransmit data?
Answer: Data can be retransmitted for users that recover their data through the DOMSAT method. Check your User Interface Manual (UIM) section 3.5.25 for the proper procedure.

Question: 3. What is an alternative way to log in?                                                                                                                                                                                                                                                      Answer: Download and install the VPN Client.

Question: 4. How far back does the data go?
Answer: Normally the DCS user can recover up to 72 hours worth of platform data.

Question: 5. How come I’m missing my scheduled data transmission?
Answer: There can be many different reasons that a platform will not report. A few examples are: Wallops CDA station equipment problems; interference from an outside influence; a different platform replying during the scheduled transmission; scheduled platform is inoperative. Please contact the Wallops CDA technician to help you determine the nature of this problem.

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Question: 6. Is someone stepping on my platform?
Answer: The Wallops CDA technician can help you determine if there is a platform reporting in your time slot. They do this by comparing the database with the actual received replies.

Question: 7. What are the proper procedures for accessing DAPS through TELNET?
Answer:

Telnet Address is: Contact the DCS operators
User Name: Contact the DCS operators
Password: Contact the DCS operators
Normal logon:
User name and assigned password: This would be your assigned password.
You can email the DCS Team Lead, Michael Galeone for further help.

Question: 8. How can I download data from this program?
Answer: Once in the system you can recover your data in the same fashion as you have done via modem by using either the download or display command.

Question: 9. How come I am having problems logging on?
Answer: If your problem is logging on via modem you should check your modem setup; check your user name and password to verify that it is the correct one; try to log on to some other network to verify that you can make an outside connection. Please contact the Wallops CDA technician for any further help.

Question: 10. How come I have such a high Error Frequency Rate?
Answer:

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Question: 11. How come I am experiencing problems with the Quality Measurements of the platform?
Answer: The UIM gives a very detailed explanation of the QM (Appendices A-1 through A-8). Basically  the first part of the QM relates to the EIRP of the received signal. This signal strength is recorded as a number with an operating range from 32 to 57 dbm. The next two units represent the DCP’s transmit frequency offset, with minus being lower than center frequency and plus being higher. The next unit represents the frequency cycles that the DCP is off by times 50 cycles. The next measurement would be DCP’s modulation index, which would either be N for normal, L for low, or H for high. The final measurement is the DCP’s data quality, which would be either N for normal, F for fair, or P for poor.

Question: 12. Why am I experiencing poor data quality?
Answer: There are several reasons with some being; interference, poor DCP performance, incorrect DCP antenna pointing, Wallops CDA equipment problems.

Question: 13. How can I fix it?
Answer: You first need to determine exactly what the problem is. You can call the Wallops CDA technician for help in determining the nature of the    DCP’s problem.

Question: 14. How can I get a Procedure Manual (User Interface Manual – UIM)?
Answer: Contact DCS Customer Service at 301-817-4563 . Parts of the UIM will be included in this DCS homage.

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Question: 15. How can I change the preamble of my platform from short or long or vice
versa?
Answer: You need to contact the Remote System manager for this information.

Question: 16. What is the look-up angles/antenna pointing angles for my platform?
Answer: There are several software programs available via the Internet that will calculate the information that you need for your DCP’s.  Links to these sites will be provided soon.

Question: 17. How can changes be made to my platform description table or the user  description table?
Answer: Yourself, the owner of the DCP, can make some of the changes. Others have to be done by either the Wallops CDA technician or the Remote systems manager. The details are explained in the UIM.

Question: 18. What is the frequency for METOSAT, or DOMSAT?
Answer: METOSAT - 57.65 MHz
                DOMSAT - 11784.4 MHz (downlink)

Question: 19. What are the proper procedures for the SUBMIT function?
Answer: The submit command is used to change or add commands for batch  execution. The procedures are quite lengthily and we would like to refer you to the explanation that is given in the UIM section 3.5.28.

Question: 20. How can I send mail to others with DAPS?
Answer: After log on the proper command to send mail is: send mail "name" carriage return. The name represents the other party that you want to contact. You would enter their name without the quotes.

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Question: 21. Can you verify transmission schedule and channel assignments?
Answer: The Wallops DCS technician can verify the DCP’s schedule time for transmission and the correct channel assignments. The user can check their DCP by displaying the PDT for that particular DCP’s address.

Question: 22. How can I change my password within DAPS?
Answer: Your password can be changed by using the command, password follow by the new password. The new password should be 6 to 15 characters in length.

Question: 23. Can you test the data format of my data going out on the NMC line or the DOMSAT line?
Answer: The Wallops CDA technician has a Digialog 620 data analyzer that can be used to check the contents of the DCP’s data that is being routed through the NMC or the DOMSAT links.

Question: 24. My platform seems to be drifting into different frequencies; what’s wrong with it?
Answer: The problem appears to be confined to the performance of the DCP and should be troubleshot from the user’s end. You can check with the Wallops CDA technician to verify that the DCP’s channel is operating properly.

Question: 25.   What IPs are available for telnet access to DAPS?

Answer: Contact the DCS operators. 



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