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Site Master S113B/14B & S331B/32B User Guide

Site Master S113B, S114B, S331B, S332B, Antenna, Cable and Spectrum Analyzer User Guide

User Guide pdf 780.8 KB Version: F 6/1/2002

Site Master S113B/S331B Maintenance Manual

This manual provides maintenance instructions for the Site Master S113B/S331B Antenna and Cable Analyzer.

Maintenance Manual pdf 331.9 KB Version: C 10/25/2001

Site Master S114B/S332B Maintenance Manual

This manual provides maintenance instructions for the Site Master S114B/S332B Antenna, Cable, and Spectrum Analyzer. It describes the product and provides performance verification procedures, parts replacement procedures, and a replaceable parts list.

Maintenance Manual pdf 260.8 KB Version: B 10/25/2001

Site Master S11x S33x/A Maintenance Manual

This manual provides maintenance instructions for the Site Master S110, S111, S112, S113, S330, S330A, S331, and S331A Personal SWR/ RL and Fault Location Testers. P/N: 10580-00008

Maintenance Manual pdf 360.3 KB Version: E 1/25/2001

Site Master S113B/14B, S331B/32B Programming Manual

Site Master S113B, S114B, S331B, S332B, Antenna, Cable and Spectrum Analyzer Programming Manual

Programming Manual pdf 178.9 KB Version: C 3/1/2000

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HHCL Version History

Release dates, Software Requirements, and Compatibility.

Drivers Software Downloads pdf 354.1 KB Version: 3.44 6/4/2008

Download Handheld Code Loader

Handheld Code Loader v3.44 Visit the Handheld Code Loader Home Page for quick access to the firmware, features, and version history (no registration required). Note: Master Software Tools (MST) now works on Site Master S311D, S331D, S312D, S332D and Cell Master MT8212B. We strongly recommend users to migrate to MST. This platform has numerous productivity advantages over the HHST and all future product enhancements will be done via MST. Visit the Master Software Tools (MST) Home Page for more information.

Drivers Software Downloads exe 7.0 MB 3/19/2008

Site Master Software Tools (older version - 5.30)

This older version of Site Master Software Tools Supports only the following Models: 110, 111, 330, and 331 For all other Site Master Cable and Antenna Analyzers, please use the current version of Line Sweep Tools.

Drivers Software Downloads zip 3.9 MB 2/25/2004

By Product Category

I completed a sweep in return loss with a short connected to the other end. My customer requested that I include an insertion loss sweep. Can I convert this return loss sweep to an insertion loss sweep?

Yes, using Handheld Software tools set marker 1 to peak and set the second marker to valley. Add the two values together and divide by four. For more detail please see page 3 of the Insertion Loss Measurement Methods application note. (See Related Links on the right.)

I completed a sweep in return loss with a short connected to the other end. My customer requested that I include an insertion loss sweep. Can I convert this return loss sweep to an insertion loss sweep?

Yes, using Handheld Software tools set marker 1 to peak and set the second marker to valley. Add the two values together and divide by four. For more detail please see page 3 of the "Insertion Loss Measurement Methods" application note, 11410-00276

Why doesn't my USB to Serial adapter work?

The Sitemaster and the Handheld Software Tools program (HHST) will work with almost any commercially available USB to Serial adapter. If you don't have one yet, you can order one from us (P/N 551-1691) or pick one up from almost any electronics parts store (Fry's, Radio Shack, etc). You will have to install the drivers that come with the device and then go into control panel on your PC and manually set the Com port to Com 1 through Com 6, as these are the only ports our program will operate on. In Windows XP, you can do this by going to Control Panel, System, Hardware, Device Manager, Ports, Communications Port, Port Settings, Advanced, then click on the Com port pull-down; and it will show you which Com ports are in use on your machine. Set it to an unused port number 1 through 5. Then check the Com port settings in our program under Settings/Communication. It should match the port you have selected in Control Panel. Set the baud rate to 38,400 as this is the common rate limitation of most USB to serial adapters. After you get your setup working, you can experiment with higher baud rates if you wish. Note that newer units such as the D models can support higher transfer speeds than the older A and B models. You should also be using the latest version of Handheld Software Tools, which can be found by entering the term HHST in the search box on our website ( Sometimes it is useful to perform a Factory Default reset on the Sitemaster after trying unsuccessfully to communicate wit h it. This can be done by holding the Escape key in the upper righthand corner of the keypad while pressing the On/Off switch to turn the unit on. This will reset the unit but not affect any of the saved sweeps on it or the memory in any way. It simply helps to "clear the cobwebs" out of the unit.

I am trying to place my marker on a specific frequency, but the marker only allows me to go to a specified frequency (ie: I want to place it on 1950.3, but the marker jumps to 1949.xx or 1950.9x). Why does it do this?

Based on the resolution chosen, there are a discrete number of data points that are created and displayed on the graph. The markers can only fall on one of these discrete points in the graph. To find out the frequency spacing of the points from F1, use the following equation: (F2-F1)/# of points.

Why does it look like a short is occurring in my Antenna when I'm doing a DTF?

When doing a DTF, the unit is still calibrated to a particular frequency range, to check the frequency range that you are calibrated for: 1. Press the "Mode" Hard Key 2. Select "DTF" 3. Press the "DTF Aid" soft key 4. Look at F1 and F2, they represent the currently calibrated range of the unit. 5. If F1 and F2 are outside the frequency band of the antenna, it will look like a short, change the frequency range to the range of the antenna.

There is a lot of concern about loss and reflections in the cable run to the antenna. Why don't the radio MFGs just make transmitters with more power?

The FCC regulates how much output power of any given transmitter. Since this is a fixed quantity, the system designers are forced to squeeze out every bit of performance out of the entire system.

How to interpret traces?

A return loss measurement is like using a SWR meter, it is a quick pass/fail type of measurement. DTF is used to identify where a problem occurs, your knowledge of the installation will indicate the type of problem. For example, a large spike in the middle of a main feed line indicates a problem. In some areas of the USA, cables make excellent target practice and bullet holes are common. A large spike typically indicates an open or short of some type. Somewhere in the middle, a crushed cable, ignoring the antenna. One thing, on long cable runs, you can use either VSWR or RL in DTF. For short cable runs, like jumpers, VSWR sometimes makes it easier to interpret the display.

How do I get the graph from Software Tools into a Word Document? Into Excel?

Software Tools provides several methods of exporting a graph for use in other applications. The Copy and Paste method will work for all MS Windows compatible programs. In addition, the File, Export function can save your Graph in a Windows Meta File format .WMF or to Text. The text file contains the data behind the graph for import into any spreadsheet.

Using the pre-amp, I see the message AMP-SAT on the display, but no large signals on the graph. What's going on?

More than likely, there is a large signal outside of your measurement span causing the pre-amp to saturate. The pre-amp is a broadband amplifier, with no tuning or filtering before its input. This is why we recommend the pre-filters in the optional accessories.

Why does my DTF Trace "creep up" on long cables?

All cables have loss. If there is too much total loss, then not enough signal is reflected back to the Site Master for a valid measurement. The noise floor of the Site Master is ~40 dB, so if there is more than 40 dB of loss in the run of cable the Site Master will have trouble. Here's an example: A typical cable spec'd as follows: 3.9 db/100 ft @ 2000 MHz Let's assume we have 500 ft of cable. The first question I ask is: "how much loss is there with 500 ft of cable?" 0.039 db/ft * 500 ft * 2 = 39 dB (The * 2 multiplier is due to the round trip nature of a S11 measurement i.e. down the cable and back). If the noise floor of the Site Master is about 40 dB and there is 39 dB of loss in 500 ft of cable, I would expect to have measurement limitations with the Site Master. So, for this particular set of conditions we should disregard anything passed 500 ft. So now we can answer the original question properly. The code uses the c able loss value you enter to adjust the plotted DTF measurement. Let's use another quick example: if you have a 20 dB antenna 100 ft down a perfect cable you would expect to see that on a 20 dB spike in your DTF plot. Now if the cable is not really perfect and you do NOT account for the loss of 0.039 dB/ft the actual antenna will show as 27.8 dB (0.039 * 100 * 2 = 7.8 dB). If you entered 0.039 as the cable loss, the code will subtract (0.039 * 2) for every ft on the screen, giving you the actual antenna RL. That's grand until your loss approaches your noise floor. Once you have subtracted loss equivalent to your noise floor, the actual noise floor starts to creep up on DTF display. Don't forget that while the noise floor is generally a fixed quantity (40-45 dB), the cable loss in a system varies greatly. So, the maximum distance you can see down a cable can vary greatly as well. Incidentally, there are 2 ways to "see further down a cable": Reduce your loss or improve yo ur noise floor. They might try sweeping it at 1000 MHz where the loss is usually a bit lower there. The other thing they can do is use a true bench top VNA. It typically can get 50-60 dB dynamic range so you can handle more net loss. Another option would be to use a S251C in Insertion Loss mode. Insertion loss measures the loss from one end of the cable to the other (instead of doing a reflected measurement where you get hit with the cable loss 2x). While this would not permit DTF plots, but it would allow for an average cable loss value calculated.

Can I upgrade my S331B to get local language?

No language upgrade is available for the S331B

Why is my display dark when it is too hot or too cold?

It is normal for the display contrast to change with temperature. Use the contrast adjust to compensate.

What is ACPR and why do I need a button for it?

ACPR stands for Adjacent Channel Power Ratio. This is a Spectrum Analyzer measurement. It is a measure of the amount of adjacent channel power that leaks to within the channel of interest. The Users Guide provides extended information on these functions.

Can I use any standard extension cable with my Site Master?

Not usually. The cable used is very critical in making accurate, repeatable measurements. The cable must be 'phase stable'. Many are, including all that are sold with the Site Master. This type phase and loss of this type of cable does not change much as it is flexed and therefore produces consistent measurements when used with your Site Master.

How long does it take to warm up my SiteMaster?

The SiteMaster can be used immediately without any warm up time, however the temperature inside the box will rise quite fast in the first 5 minutes of operation and then much slower after that. If you don't want to wait, you can calibrate and make measurements immediately. However you may need to recalibrate as the box warms up, the SiteMaster will warn the operator if the temperature change requires another calibration.

I left my Site Master on a bench and went to lunch. It's not sweeping anymore. What's wrong? How do I get it to sweep again?

The Site Master goes into a power saving mode after 10 minutes of inactivity. Just press the RUN/HOLD button and the unit will begin sweeping again.

How accurate (in feet) is the DTF measurement?

Typical absolute measurement accuracy for tower mounted transmission lines is within 1 foot. Please see our application note "Distance to Fault" (page 12) for a more detailed explanation. This Application Note can be found on the SMIU Education page.

My Site Master has two N connectors on it. Do I need to calibrate both of them? Which one do I use?

The connector marked RF Out / Reflection is the only port that requires OSL calibration for Return Loss or / SWR measurements. Some Models like the S251C can make Insertion Gain or Insertion Loss measurements and the second port is included in an OSLIT (Open, Short, Load, Isolation, Through) calibration. Refer to the Users Guide for additional details.

In DTF mode, I chose a cable from the cable list, but the cable loss that is given does not match the cable loss that is in my catalog. What is wrong?

Cable loss is displayed in the SM as loss/ft or loss/m. In the catalogs it is displayed as loss/100 ft or loss/100 m.

Using version 6.41 software, I do not seem to be able to overlay two plots by the drop and drag method described in the help file. Can you suggest what I may be doing wrong?

On the Software Tools Window, the Mouse Function is a toggle, make sure it says.... Mouse Function: Plot Overlay. Now you can only overlay similar traces, that is a DTF plot or VSWR (Return Loss). Using the mouse - left click on the trace to be used and drag it over to the second trace as shown in the help window.