• Created by Unknown User (leonardd@mit.edu), last modified by Unknown User (jhetrick_1@touchstonenetwork.net) on Jun 18, 2015 18:35
Any reason NOT to buy a large (3 or 4.5m) dish from RF Ham Design?
Q: We are going to upgrade our Old SRT to the New SRT this fall and are ordering/planning this summer. I'm thinking of buying the 3 or 4.5m mesh dish from RF Ham Designs, since the wind load is still acceptable for our roof top mount. Is there any reason why this is a bad idea? Thanks. Jim Hetrick,  Physics,  U. of the Pacific, Stockton, CA   (jhetrick@pacific.edu)
Q:Is there an official method of changing the default pointing of the SRT for the southern hemisphere? Another words so the telescope does not have to swing back around when scanning though north. This appears to be covered in the SRT software manuel with the azlim keywords, but this method results in an out of limits response when you command it to move.
 

 

Instructions

The purpose of this page is to provide a quick and easily accessible center for asking and answering questions about information on the SRT not found elsewhere on the wiki.

 

First, read through the page to see if your question has already been posted and/or answered. If it hasn't, feel free to Edit this page and post your question as a new Lozenge macro under the Outstanding Questions section. To do this, select 'Insert'>'Other Macros'>'Formatting'>'Lozenge'. Type your question under the 'Title' entry and type auto under the 'Width' entry.

Once you have posted a question, other users are free to answer it for you. Check back to this page as often as you'd like to see if your question has been answered, or click on 'Tools'>'Watch' to subscribe to this page and be automatically notified when it is updated. If your question remains unanswered for an extended period of time, or you need the information in a more timely manner, it may be preferable to seek answers from more direct sources. If you find the answer yourself, it is encouraged to post it on this page for others who may have the same question in the future.

When answering a question, the first step is to move the question to the Pending Answers section. To do this, simply drag the Lozenge macro box from the Outstanding Questions section to the top of the Pending Answers section. Then, in the body of the Lozenge macro, enter your answer to the question. Feel free to include any attachments, tables, or images you feel help to support your answer. It is not necessary to answer all parts of the question, as other users are free to add to this answer as long as it remains in this section. Any information you are able to provide is welcome.

If you find one of your Outstanding Questions has been moved to Pending Answers with an answer below it, read through the answer and decide whether or not it is satisfactory and fully answers the question. If it does, you can then move the entire question and answer to the top of the Answered Questions section. If any user feels the topic is relevant enough, it is encouraged to create a new page for the topic under the corresponding category, so that other users may easily find it and add their own input.

Outstanding Questions

Q: In the receiver output section the 2nd LPF is shown as a BLP-7-75+ on the schematic Rev 7, in the parts list, and in the Hardware Manual photo. That is a 75 ohm filter, but the ZFL-500LN+ amps are 50 ohm. Is there a reason a 75 ohm filter was selected? This also necessitates using BNC adapters, since the filter uses 75 ohm BNC connectors, not 50 ohm SMAs. Thanks for the clarification.
This filter was selected because the only with 7 MHz one available from minicircuits. The mismatch 75 to 50 ohms has little effect. However I suggest using the TV dongle receiver which is much simpler and lower cost.
Q: This is an example question; how do I format my question?
 

Pending Answers

 

Q: This is an example question; how do I format my question and answer?
A: You format the question and following answer as the title and body of a Lozenge macro, respectively.

Answered Questions

 

 

 

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