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Tender Notice


Publishing status


Publication date
Amendment date
Date closing
2018/04/20 14:00 Eastern Daylight Time (EDT)


Reference number
Solicitation number
Region of opportunity
Region of delivery
Notice type
Request for Proposal (RFP)
Trade agreement
  • None
Tendering procedure
Solely Canadian content
Procurement entity
Public Works and Government Services Canada
End user entity
Public Works and Government Services Canada

Contact Information

Contact name
Walker, Samantha
Contact email

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March 20, 2018

The closing date for this challenge has been extended to April 20, 2018 at 14:00 EDT.


March 12, 2018

Please see the Bidders’ Questions and Answers document 003 concerning this challenge.


March 7, 2018

Please see the Bidders’ Questions and Answers document 002 concerning this challenge.

Bidders are requested to submit their proposal using the electronic Application/Bid Submission Form. The form can be found by clicking the “Propose a solution” button on the ISC website under the specific challenge the Bidder is responding to. Challenges can be found at the following link:


February 27, 2018

Please see the Bidders’ Questions and Answers document 001 concerning this challenge.


This Challenge is issued under the ISC Call for Proposals (EN578-170003/B).

Please refer to the Solicitation Documents which contain the process for submitting a proposal.



CHALLENGE SUMMARY STATEMENT: Provide robust approaches to over-the-horizon/BLOS communications in satellite-denied environments.


CHALLENGE SPONSOR: Department of National Defence (DND)


Multiple contracts could result from this Challenge.

The maximum funding available for any Phase 1 Contract resulting from this Challenge is $150,000.00 CAD (plus tax) including shipping, travel and living expenses, as applicable.

The maximum funding available for any Phase 2 Contract resulting from this Challenge is $1,000,000.00 CAD (plus tax) including shipping, travel and living expenses, as applicable. Only eligible businesses that have completed Phase 1 could be considered for Phase 2.

This disclosure is made in good faith and does not commit Canada to contract for the total approximate funding.

TRAVEL:  No travel anticipated.


The Canadian Armed Forces uses both High Frequency (HF) and satellite communications (SATCOM) systems for beyond line of sight (BLOS) communications. While the HF band supports global communications, it is subject to widely varying performance due to interference, atmospheric conditions and, in times of conflict, jamming. Satellite communications can also be subject to denial jamming.

The challenge is to consider new approaches to providing robust, over-the-horizon/BLOS communications in satellite-denied environments, either by enhancing the reliability of HF and/or SATCOM approaches, or by exploring new technologies and techniques. While satellite communications have become (almost) ubiquitous, the satellites themselves are vulnerable to attack and therefore represent a potential point of failure. Canada, therefore, continues to need a robust backup for satellite communications under jamming in order to ensure strategic and operational command and control. 


DND needs either more resilient/robust satellite communications or a robust backup for satellite communications (instead of using High Frequency (HF) systems) for beyond line of sight (BLOS) communications under various environmental and geographical conditions including in urban setting and remote locations.

Solutions need to support digital communications for tactical and operational communications including text and computer-computer traffic and, depending on the particular solution, digital voice. Further, in the presence of fading channels or interference, the system must gracefully degrade to supporting more basic text traffic using appropriate quality of service rule sets to prioritize. For system integration, an IP interface to terminal units would be preferred.

Bidders may consider other concepts such as tropospheric scattering, meteor trails and deploying orbiting High Altitude Long Endurance Unmanned Aerial Vehicles (HALE UAVs) as communications relays and propose alternative ways for over-the-horizon/BLOS communications to HF. Bidders may also consider concepts for more robust/resilience BLOS satellite communications under jamming conditions. As there are a number of conventional solutions available using very-high frequency (VHF) and ultra-high frequency (UHF), proposed solutions should extend well beyond those ranges. 


Background & Current efforts/technologies being explored:

Communications in satellite-denied environments remains a challenge in various settings; In order to mitigate the risk and challenge, efforts require either enhancing the reliability of HF approaches, or exploring new technologies and techniques to ensure uninterrupted command and control functions.

Solutions to communication systems in satellite denied environments may also find market in non-defence sectors as well as in international markets.

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Solicitation Documents