Seeker HL (Discontinued)

In-Home Leakage Evaluation Kit

The Seeker HL In-Home Leakage Evaluation System is a low-cost digital leakage solution that includes a dual-frequency tagged signal source, with a selectable output level and a discriminating leakage receiver that is designed to be extremely sensitive to leakage in both the Aeronautical and LTE Frequency Bands.

Seeker HL
This product has been discontinued.

This product has been discontinued

Please consider this product instead:

Easily find & fix the smallest, hardest to find sources of ingress in your plant

  • Dual-Band Leakage Receiver for Both Aeronautical and LTE Frequencies
  • Sensitivity Up to 0.1 uV/m at 138 MHz and 0.4 uV/m at 757.5 MHz
  • Tagged Signal Source Combined with a Discriminating Leakage Receiver
  • Audible Tone Increases Proportionally in Pitch as Technician Moves Closer to the Source of Leakage

Mitigation of signal leakage within the subscriber premise is essential for the successful operation of the subscriber’s cable and cellular services. To thoroughly evaluate the potential for interference to subscriber services, VIAVI has developed a patent pending approach to signal leakage measurement which will comprehensively test the Aeronautical and LTE bands in both fully digital and analog cable systems.

Historically, signal leakage detectors have required high levels of sensitivity to measure signal leakage radiating from the CATV system. Measurement within the subscriber premise and the migration to all digital services places even greater sensitivity requirements upon the leakage detector combined with a new requirement to simultaneously monitor for signal leakage in both the aeronautical and LTE bands.

In laboratory experiments signal leakage measurements as low as 0.1 uV/m have proven sufficient to allow LTE signals to enter the subscriber network and disrupt cable services. Achieving a measurement sensitivity of 0.1 uV/m is beyond the measurement range of conventional signal leakage detectors and requires a new approach to leakage detection within the subscriber premise.

Testing Approach
To meet the new measurement and sensitivity requirements, the Seeker Home monitors 138 MHz and 757.5 MHz simultaneously, supporting testing in both the Aeronautical and LTE frequency bands. The Seeker Home Signal Source replaces the Cable service with two high output test carriers which pressurize the subscriber cabling revealing any damage which may lead to service interruption from ingressing LTE carriers.

The Seeker Home Signal Source has two output levels. A +60 dBmV for home certification and a +40 dBmV output level should the subscriber network prove too porous for pinpointing the location of a leak at the higher transmit level.

The displayed leakage levels are normalized by the Seeker Home receiver to reflect the value of the leak at nominal systems levels within the subscriber premise. The normalization of the measured and displayed leakage levels simplifies the evaluation of leakage severity and provides consistency for documentation of leakage levels in accordance with established industry practices.

When utilizing the higher +60 dBmV transmit level the Seeker Home is able to locate signal leakage down to a normalized leakage level of .1 uV/m with a single flexible antenna; making it possible to locate and repair signal leakage levels far beyond the measurement range of conventional leakage detectors.

Advanced In-Home Shielding Integrity Testing

Until recently finding and fixing leakage in the aeronautical band was considered “good enough” for almost all cable operators. But, with increased deployment of off air services by cellular providers and increased bandwidth demands of both the MSOs and cellular providers, keeping the cable plant tight has never been more important. Additionally, the increase in service demands for cellular bandwidth has pushed services into the 700-800 MHz (LTE) band and maybe even lower into the 600 MHz band in the near future.

Up until now leakage detection has focused on the outside plant, but as cellular devices become more prevalent we need to somehow verify if these devices are causing harmful interference when they are in close proximity to leakage or ingress sources within a home. Since the relative distance between a cell tower and cellular devices determines the transmit level of cellular devices, this can results in cellular devices transmitting their data with a signal strength as high as 3 V/m. Due to this possibility of high transmit level of cellular devices, even the smallest sources of leakage or ingress points within the home can lead to cellular signals causing issues with downstream QAM channels. With this problem in mind, VIAVI has developed the Seeker HL In-Home Leakage Evaluation System as a solution for finding the smallest of leaks in the home and to help identify any shielding defects that will allow cellular signals to enter into the cable system.

During an installation or service call, the Seeker HL In-Home Leakage Evaluation System provides technicians with a way to comprehensively evaluate the customer premises for leakage in both the Aeronautical and LTE bands within fully digital, analog and mixed cable systems and is the only system available to quickly, easily and accurately verify that the shielding integrity of in home wiring meets the needs of today’s high tech world.

This innovative, patent-pending method of in home leakage detection involves using the Seeker HL Source Transmitter to replace the cable service at the subscriber’s ground block. The higher levels of the Seeker HL Source Transmitter will increase the field strength of the signals radiating out of the customer’s home network, providing a higher level of sensitivity to find even the smallest of leaks.

The transmitter injects two single CW carriers into the subscriber network with a 20 Hz tag modulation, one inserted at 138 MHz and another at 757.5 MHz supporting testing in both the Aeronautical and LTE bands. The source transmitter signal level is at considerably higher level than typical active plant levels in order to “over-pressurize” the cable system in the home. This approach is similar to pressurizing a water pipe and looking for any sources of water that may point to the location of a defect in the pipe. Using the Seeker HL with its source transmitter allows the technician to detect leakage levels at an otherwise unheard of sensitivity down to 0.1 uV/m. The user may set the output level to 60 dBmV for home certification, but also has the option to reduce the level to 40 dBmV should the subscriber network prove to be too porous for pinpointing the location of a leak at the higher transmit level.

The Seeker HL provides both a visual readout of the measured levels in uV/m and a tone proportional to signal strength. To prevent false triggering the Seeker HL utilizes our unique channel tagging technique. When checking the integrity of in-home shielding and to provide consistency with leakage levels typically found within the subscriber premise, the levels displayed by the Seeker HL have been normalized to represent the value of a leak at typical system levels. This correlation between measured and displayed levels will assist the technician in evaluating the severity and recording of a leak based upon established industry practices.

Additional resources:


Instrument Care Support Plans

Save up the 50% of standard service prices and obtain priority service when you buy a bundled plan at the same time the instrument is purchased. Care Support Plans offer the best way to purchase extended warranty, premium technical support, self-paced training, and critical maintenance services like calibration services that include software and engineering change order update services to ensure your product is maintained with current software and a calibration certificate. These discounted plans are 2-5 years long when purchased upfront with your VIAVI instruments.

VIAVI Care Support

VIAVI Care Support


标准服务 + 定制菜单:
 现场校准和培训,FAE 天数,


5 年电池和包覆盖 *



* 仅限 5 年计划;如果适用

电池和包会随着日常使用和充电周期而磨损。为了确保这些项目不会拖累您,我们的 5 年计划包括在您的 5 年计划的整个生命周期内进行更换。

在为期 5 年的 SilverCare 或 MaxCare 支持计划期间,VIAVI 将提供一次更换损坏的电池和磨损的软包/手套的服务。只有当仪器被送回 VIAVI 进行维修或校准服务时,才会更换该仪器。硬箱排除在外,覆盖不适用于不带包/电池销售的仪器。

此覆盖包括在 5 年 Silver 和 MaxCare 计划中

MaxCare 配件更换覆盖

当配件被确定为有缺陷或有故障时,VIAVI 将免费为客户修理配件或根据 VIAVI 的判断进行更换。更换的配件可能是新的,也可能是翻新的。所有退回的配件归 VIAVI 所有。适用以下限制:每 12 个月内可更换的配件最多为一个;适用的配件仅包括那些被认为对仪器运行至关重要且随原始购买产品一起发货的附件。如果存在问题,或者在校准或维修服务事件期间,客户有责任将有故障的附件寄回 VIAVI。


Care 支持计划 - Seeker

Care Support Plan - Seeker

Seeker D,Seeker XMaxCare-5




Factory standards to ensure accuracy


VIAVI 根据 TL9000 工厂标准进行校准,以确保您的仪器经过认证,可以准确测量,就像它出厂时一样。未校准的仪器将产生不可靠的测量结果,并可能产生错误的通过或错误的不通过测试结果,这通常会导致您的团队重复工作。我们维护、抛光和清洁所有光纤连接器,修复产品内部的尾纤连接,以确保所有端口保持良好工作状态,并将软件/固件升级到最新批准版本以实现增强功能。VIAVI Care 计划是在购买仪器时以较低的折扣价规划校准的最具成本效益的方式,但是也可以随后以单独的采购订单购买固定费率校准。

  • 确保准确的测量符合网络测试程序的校准和服务级别协议、ISO 和 TL 标准。
  • 确保所有测试传输信号正常工作,以避免出现无法达到验证服务带宽、速度和服务质量 (QoS) 所需的全线速率测试速率等问题。
  • 维护端口和连接器,以保持测试传输正常工作,并延长仪器的使用寿命。例如,如果经过多年的连接周期后,光学连接器和激光器损坏或电气/射频接口端口松动,则 OTDR、TDR 和射频测量将无法正常工作。
  • 在进行必须经过认证的施工、安装和激活工作时,所有网络组件通常必须使用经过认证和校准的仪器进行测试,以保留制造商(如光缆制造商)的保修服务。
  • 精确的射频频率和光波长对于满足测量规范至关重要。如果使用这些工具来验证网络元件、功率电平、传输速率,则不符合规范的工具将导致无法验证网络元件和信号。



What are the most common implications of these issues to the business?


  • 未经校准的工具会产生不可靠的测量结果,无法通过规范认证,并可能违反与您的客户及其网络设备供应商签订的服务级别协议或 ISO/TL9000 标准。
  • QoS 认证可能不准确,并产生重复测试需求。承包商往往得不到补偿,或者可能因结果不正确而被从合格服务供应商行列中除名。
  • 电缆供应商(例如 Corning、CommScope、Belden 等)提供的完整制造商保修(20-30 年) 只有在安装经过校准仪器认证的情况下才有效,因此网络所有者有动力遵守正确的安装认证程序,以保留和享受对昂贵的电缆和光网络元件等的保修。


  • 收入损失、客户投诉和成本增加:
  • 大多数网络运营商将跟踪和审计分包商重复完成的工作,在这些情况下经常会出现账单纠纷。当不符合 SLA 协议或质量标准时,测试结果不准确率高的承包商通常会以更低的价格被雇用,或者根本不会被雇用
  • 对于网络运营商来说,重复出现客户服务质量问题往往会导致成本增加、客户不满和业务损失。


让我们看看 OTN/SONET/SDH/E1/T1 和各种 FTTX、DOCIS 和 xDSL 测量。达到全线速率(1G、10G、40G、100G)对测试服务性能和服务错误率至关重要。如果未校准的测试仪在测试过程中无法达到全线速率,客户可能会得到性能不佳的结果,这将很快引起投诉,或者,技术人员最终可能会寻找不存在的虚假网络问题。

VIAVI Care Support for Existing Equipment


FleetCare plans can be customized to include any service entitlements on your fleet of existing equipment. Please fill out a Service Contracts form for a quote.

  • Any collection instruments with a single coterminous renewal date
  • Each contract is customized with any number of annual terms required by the customer
  • Onsite Calibration, Training, Field Application Engineer days can be added

View Support Plans For Existing Equipment


对产品演示感兴趣? 请与我们联系以了解详细信息、获取报价或者了解如何购买。