I have upgraded and need to get rid of these. Both LCD displays are in good condition no missing lines or lines thru the display. the Backlight on the S113B does not work (never has). Both pass all self tests and power up without issue. Traces can be saved on both units. Using a null modem cable traces can be downloaded using Anrtisu software (free download). Allows for print or importing of .bmp files for scans. I used these for the past few years to check antennas, cable runs, find interference and even build a 6 meter duplexer. I have recently purchased a newer analyzer and these are excess to my needs. S113B $400 OBO plus shipping MS2711B $1100 OBO plus shipping Both units together $1300 Firm plus shipping Paypal ok or a MO works too. Anritsu Site Master S113B Cable and Antenna Analyzer Frequency Range: 5 to 1200 MHz Frequency Accuracy (RF Source Mode) 75 parts per million @ 25°C* Frequency Resolution: 10 kHz Measures VSWR: Range Resolution 65.00 0.01:1 Return Loss: Range Resolution 0.00 to 54.00 dB 0.01 dB Distance-To-Fault (DTF) Cable Loss Includes Carrying case, power supply, Manual, Type N male to BNC female, Type N Male to SO-239, MECA 401-1 50 Ohm Load. ****No Battery**** an new battery can be purchased online for $60-80. ****Back light does not work**** Anritsu Spectrum Master MS2711B Spectrum Analyzer with Tracking Generator Frequency Range 100 kHz to 3.0 GHz Frequency Span 1 kHz to 3 GHz in 1, 2, 5 step selections in auto mode, plus zero span Sweep Time 6.5 seconds full span; 510 ms zero span Resolution Bandwidth Selections 10 kHz, 30 kHz, 100 kHz and 1 MHz Tracking Generator Frequency Range 10.0 MHz to 3.0 GHz 5.0 kHz Tracking Offset Range <5 MHz Output Power Level Resolution Absolute Level Accuracy Output Tracking VSWR Spurious +20 to –90 dBm (>10 MHz, typical w/ tracking generator on. Preamplifier Frequency Range Amplitude Gain Measurement Range Maximum Input Level Displayed Avg Noise Level Listen to Demod Audio AM/FM Measurement Range Maximum Input Level +20 dBm to –95 dBm (without options) +23 dBm, without damage 50 VDC Dynamic Range > 65 dB Amplitude Units Log Scale Mode dBm/m, dBV/m, dBmV/m, dBV/m Display Range 2 to 15 dB/division, in 1 dB steps, 10 divisions displayed Attenuator Range: 0 to 50 dB, selected manually or automatically coupled to the reference level. Resolution in 10 dB steps. Marker Modes Standard delta marker to peak marker to center (M1 to M4 only) marker to valley (M5 & M6 only) Memory Trace Storage 200 traces Setup Storage 10 setups Displayed Traces 2 traces Inputs RF Input 50 Connector Female, Type N RF Input VSWR (20 dB atten.) 2.0:1 typical RS232 Interface Null modem Baud Range 9600, 19.2k, 38.4k, 56k, 115.2k baud Includes, Carrying case, Hard transport case, power supply, Type N male-male and female-female, 2 6db pads, 2 60" RG-400 jumpers Type N male on all ends, Battery, Manual. ***Battery fully charged only last about 20-30 Minutes***New battery can be purchased online for $60-80.